MASTER Net MASTER Database: GRB190427.19 page

Please use the reference to MASTER DataBase as Lipunov et al., 2010, MASTER Robotic Net, Advances in Astronomy, vol. 2010, p.30L

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GRB coord: ErrorBox (deg): Sys Error (deg):
Sattel : Trigger: Notice:
GRB_Name: trignum: Nights after: FullSky


Name SWIFT GRB190427.19
Trignum 900730
Trigger time 2019-04-27 04:34:14
Notice time 2019-04-27 04:35:07.457545
Coord, eb (18h 40m 51.12s , +40d 19m 19.2s) , 0.05
Max dist: 1 sigma 3 sigma
AGN candidates: Milliquas
r90wise
wiseXgaia
BL Lac candidates: 1 Sigma
3 Sigma

MASTER observatories and transients from them in error-field
Kislovodsk Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
Amur Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
Tunka Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
OAFA Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
IAC Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
SAAO Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
Tavrida Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
OAGH Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)

You are viewing outdated information, relevant error box is here

All alerts for this trigger
id noticetime coord2000 satel errorbox type trigger seq trig_type links
1004395 2019-04-27 04:34:47.375406 18h 40m 51.05s +40d 19m 20.3s SWIFT 0.05 alert 900730 1 97 alert
1004426 2019-04-27 05:38:46.344707 18h 40m 47.42s +40d 19m 27.8s SWIFT 0 alert 900730 1 77 alert
1004425 2019-04-27 05:38:14.0072 18h 40m 47.42s +40d 19m 27.8s SWIFT 0 alert 900730 4 68 alert
1004414 2019-04-27 04:36:14.223327 18h 40m 51.05s +40d 19m 20.3s SWIFT 0 alert 900730 140 66 alert
1004411 2019-04-27 04:35:12.642453 18h 40m 51.05s +40d 19m 20.3s SWIFT 0 alert 900730 178 65 alert
1004420 2019-04-27 04:51:07.088379 18h 40m 51.05s +40d 19m 20.3s SWIFT 0 alert 900730 14 63 alert
1004408 2019-04-27 04:35:07.457545 18h 40m 51.12s +40d 19m 19.2s SWIFT 0.05 alert 900730 3 61 alert

DAYS:

MASTER optical transients in this field
Will be published in GCN, ATEL

Synchronous WFC images
Distance datetime coord2000 observatory camera links
Errorbox center visibility at MASTER facilities
trigger notice notice+1hr now

2019-04-27 04:34:14 (JD 2458600.690440)

Siderial time 21.404006 h

Ra 18:40:51.12 Dec 40:19:19.20
(280.213000d, 40.322000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 10.40 Azimuth: 144.02

Sun: Altitude: 50.84 Azimuth: 26.52

Moon: Altitude: -20.45 Azimuth: 83.74

Tunka

Object: Altitude: 22.11 Azimuth: 127.83

Sun: Altitude: 51.36 Azimuth: 348.20

Moon: Altitude: -6.08 Azimuth: 65.91

Kislovodsk

Object: Altitude: 56.28 Azimuth: 100.34

Sun: Altitude: 25.16 Azimuth: 275.09

Moon: Altitude: 25.47 Azimuth: 14.48

Tavrida

Object: Altitude: 62.45 Azimuth: 94.04

Sun: Altitude: 19.03 Azimuth: 269.45

Moon: Altitude: 25.56 Azimuth: 5.59

SAAO

Object: Altitude: 13.97 Azimuth: 161.33

Sun: Altitude: -7.10 Azimuth: 258.31

Moon: Altitude: 75.34 Azimuth: 210.61

IAC

Object: Altitude: 73.76 Azimuth: 218.79

Sun: Altitude: -23.86 Azimuth: 237.91

Moon: Altitude: 25.25 Azimuth: 312.34

Argentina

Object: Altitude: -4.50 Azimuth: 224.36

Sun: Altitude: -71.85 Azimuth: 359.82

Moon: Altitude: 3.71 Azimuth: 290.72

Mexico

Object: Altitude: 8.11 Azimuth: 227.38

Sun: Altitude: -30.44 Azimuth: 132.32

Moon: Altitude: -51.47 Azimuth: 262.53

Ural

Object: Altitude: 47.12 Azimuth: 95.01

Sun: Altitude: 32.02 Azimuth: 296.92

Moon: Altitude: 9.20 Azimuth: 29.34

Vostryakovo

Object: Altitude: 59.23 Azimuth: 78.08

Sun: Altitude: 20.94 Azimuth: 276.29

Moon: Altitude: 14.70 Azimuth: 8.90

Gal. latitude: 18.774670 Gal. longitude: 69.413110

Dist. to Sun: 98.441292

Dist. to Moon: 66.804897

Moon coord.: (312.111751 d, -19.520159 d)

Sun coord.: (34.055976 d, 13.649037 d)

Lunar disk: 0.476608

Lunar phase: 92.681500

Lunar bright limb: 74.427241

No SN in this field

2019-04-27 04:35:07 (JD 2458600.691053)

Siderial time 21.418768 h

Ra 18:40:51.12 Dec 40:19:19.20
(280.213000d, 40.322000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 10.31 Azimuth: 144.17

Sun: Altitude: 50.78 Azimuth: 26.85

Moon: Altitude: -20.58 Azimuth: 83.90

Tunka

Object: Altitude: 22.00 Azimuth: 127.97

Sun: Altitude: 51.39 Azimuth: 348.55

Moon: Altitude: -6.20 Azimuth: 66.08

Kislovodsk

Object: Altitude: 56.12 Azimuth: 100.45

Sun: Altitude: 25.32 Azimuth: 275.25

Moon: Altitude: 25.43 Azimuth: 14.70

Tavrida

Object: Altitude: 62.29 Azimuth: 94.17

Sun: Altitude: 19.19 Azimuth: 269.60

Moon: Altitude: 25.55 Azimuth: 5.81

SAAO

Object: Altitude: 13.91 Azimuth: 161.17

Sun: Altitude: -6.91 Azimuth: 258.20

Moon: Altitude: 75.43 Azimuth: 209.90

IAC

Object: Altitude: 73.88 Azimuth: 218.37

Sun: Altitude: -23.70 Azimuth: 238.06

Moon: Altitude: 25.39 Azimuth: 312.50

Argentina

Object: Altitude: -4.37 Azimuth: 224.26

Sun: Altitude: -71.85 Azimuth: 359.13

Moon: Altitude: 3.88 Azimuth: 290.61

Mexico

Object: Altitude: 8.25 Azimuth: 227.48

Sun: Altitude: -30.58 Azimuth: 132.51

Moon: Altitude: -51.29 Azimuth: 262.67

Ural

Object: Altitude: 47.00 Azimuth: 95.18

Sun: Altitude: 32.13 Azimuth: 297.14

Moon: Altitude: 9.14 Azimuth: 29.53

Vostryakovo

Object: Altitude: 59.11 Azimuth: 78.31

Sun: Altitude: 21.07 Azimuth: 276.48

Moon: Altitude: 14.68 Azimuth: 9.11

Gal. latitude: 18.774670 Gal. longitude: 69.413110

Dist. to Sun: 98.441550

Dist. to Moon: 66.806827

Moon coord.: (312.119366 d, -19.518805 d)

Sun coord.: (34.056556 d, 13.649234 d)

Lunar disk: 0.476550

Lunar phase: 92.688184

Lunar bright limb: 74.424684

No SN in this field

2019-04-27 05:35:07 (JD 2458600.732720)

Siderial time 22.421506 h

Ra 18:40:51.12 Dec 40:19:19.20
(280.213000d, 40.322000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 5.42 Azimuth: 154.63

Sun: Altitude: 45.03 Azimuth: 46.92

Moon: Altitude: -29.77 Azimuth: 95.13

Tunka

Object: Altitude: 15.18 Azimuth: 137.69

Sun: Altitude: 51.36 Azimuth: 11.99

Moon: Altitude: -14.63 Azimuth: 77.05

Kislovodsk

Object: Altitude: 45.59 Azimuth: 107.63

Sun: Altitude: 35.95 Azimuth: 286.87

Moon: Altitude: 21.61 Azimuth: 29.04

Tavrida

Object: Altitude: 51.73 Azimuth: 102.41

Sun: Altitude: 29.80 Azimuth: 280.61

Moon: Altitude: 23.28 Azimuth: 20.64

SAAO

Object: Altitude: 8.73 Azimuth: 150.75

Sun: Altitude: 5.26 Azimuth: 250.17

Moon: Altitude: 75.65 Azimuth: 152.88

IAC

Object: Altitude: 77.87 Azimuth: 172.79

Sun: Altitude: -11.96 Azimuth: 247.16

Moon: Altitude: 33.93 Azimuth: 324.84

Argentina

Object: Altitude: 3.91 Azimuth: 216.34

Sun: Altitude: -67.09 Azimuth: 318.87

Moon: Altitude: 15.63 Azimuth: 283.47

Mexico

Object: Altitude: 18.19 Azimuth: 233.33

Sun: Altitude: -38.89 Azimuth: 147.12

Moon: Altitude: -38.83 Azimuth: 270.79

Ural

Object: Altitude: 38.97 Azimuth: 106.39

Sun: Altitude: 38.81 Azimuth: 313.09

Moon: Altitude: 4.58 Azimuth: 42.54

Vostryakovo

Object: Altitude: 50.61 Azimuth: 91.76

Sun: Altitude: 29.36 Azimuth: 289.75

Moon: Altitude: 12.49 Azimuth: 23.02

Gal. latitude: 18.774670 Gal. longitude: 69.413110

Dist. to Sun: 98.459049

Dist. to Moon: 66.938716

Moon coord.: (312.636192 d, -19.426126 d)

Sun coord.: (34.095932 d, 13.662589 d)

Lunar disk: 0.472594

Lunar phase: 93.142044

Lunar bright limb: 74.251381

No SN in this field

2025-05-10 19:04:04 (JD 2460806.294491)

Siderial time 12.831084 h

Ra 18:40:51.12 Dec 40:19:19.20
(280.213000d, 40.322000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 79.89 Azimuth: 9.24

Sun: Altitude: -6.67 Azimuth: 231.55

Moon: Altitude: -2.06 Azimuth: 70.69

Tunka

Object: Altitude: 70.86 Azimuth: 298.08

Sun: Altitude: -15.58 Azimuth: 209.97

Moon: Altitude: 10.58 Azimuth: 50.93

Kislovodsk

Object: Altitude: 31.07 Azimuth: 242.03

Sun: Altitude: -22.57 Azimuth: 148.75

Moon: Altitude: 31.89 Azimuth: 349.99

Tavrida

Object: Altitude: 26.27 Azimuth: 238.21

Sun: Altitude: -18.27 Azimuth: 141.16

Moon: Altitude: 29.40 Azimuth: 340.70

SAAO

Object: Altitude: -30.55 Azimuth: 238.97

Sun: Altitude: -41.26 Azimuth: 85.64

Moon: Altitude: 56.59 Azimuth: 243.38

IAC

Object: Altitude: -12.79 Azimuth: 208.86

Sun: Altitude: 7.66 Azimuth: 106.08

Moon: Altitude: 12.13 Azimuth: 293.15

Argentina

Object: Altitude: -75.42 Azimuth: 129.83

Sun: Altitude: 28.53 Azimuth: 138.19

Moon: Altitude: -17.11 Azimuth: 299.00

Mexico

Object: Altitude: -1.94 Azimuth: 140.91

Sun: Altitude: 76.40 Azimuth: 347.32

Moon: Altitude: -65.89 Azimuth: 228.45

Ural

Object: Altitude: 45.46 Azimuth: 262.62

Sun: Altitude: -14.40 Azimuth: 167.04

Moon: Altitude: 18.82 Azimuth: 8.49

Vostryakovo

Object: Altitude: 33.44 Azimuth: 245.89

Sun: Altitude: -11.12 Azimuth: 146.26

Moon: Altitude: 19.88 Azimuth: 346.09

Gal. latitude: 18.774670 Gal. longitude: 69.413110

Dist. to Sun: 104.081384

Dist. to Moon: 87.227051

Moon coord.: (206.115468 d, -13.812194 d)

Sun coord.: (47.569381 d, 17.751481 d)

Lunar disk: 0.966971

Lunar phase: 20.942031

Lunar bright limb: 283.670438

No SN in this field
Recent coverage and limits telegrams

 #######################################################################################
#######################################################################################

  ID = 851
TYPE = 35
DAYS = 1


MASTER-IAC robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Spain (IAC Teide Observatory) was pointed to the SWIFT GRB190427.19 ( 18h 40m 51.12s , +40d 19m 19.20s, R=0.05) errorbox  40 sec after trigger time at 2019-04-27 04:34:54 UT, with upper limit up to  20.1 mag. The observations began at zenit distance = 16 deg. The sun  altitude  is -23.5 deg. 

MASTER-SAAO robotic telescope  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB190427.19 errorbox  44 sec after trigger time at 2019-04-27 04:34:58 UT, with upper limit up to  13.2 mag. Observations started at twilight.  The observations began at zenit distance = 75 deg. The sun  altitude  is -7.5 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) was pointed to the SWIFT GRB190427.19 errorbox  5746 sec after trigger time at 2019-04-27 06:10:00 UT, with upper limit up to  19.1 mag. The observations began at zenit distance = 81 deg. The sun  altitude  is -61.7 deg. 

The galactic latitude b = -60 deg., longitude l = 98 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1004408

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

      45 |          MASTER-IAC |  P- |    10 | 16.8 |        
      70 |          MASTER-IAC |  P- |    60 | 18.0 |  Coadd 
     370 |          MASTER-IAC |  P- |   660 | 19.8 |  Coadd 
      45 |          MASTER-IAC |  P| |    10 | 17.1 |        
      70 |          MASTER-IAC |  P| |    60 | 18.4 |  Coadd 
     370 |          MASTER-IAC |  P| |   660 | 20.1 |  Coadd 
      50 |         MASTER-SAAO |  P\ |    10 | 13.3 |        
      77 |         MASTER-SAAO |  P\ |    10 | 13.2 |        
     100 |          MASTER-IAC |  P- |    20 | 17.4 |        
     100 |          MASTER-IAC |  P| |    20 | 17.6 |        
     108 |         MASTER-SAAO |  P\ |    20 | 13.1 |        
     160 |          MASTER-IAC |  P- |    30 | 17.7 |        
     160 |          MASTER-IAC |  P| |    30 | 17.9 |        
     212 |          MASTER-IAC |  P- |    40 | 17.9 |        
     267 |          MASTER-IAC |  P- |   150 | 19.0 |  Coadd 
     212 |          MASTER-IAC |  P| |    40 | 18.2 |        
     267 |          MASTER-IAC |  P| |   150 | 19.0 |  Coadd 
     274 |          MASTER-IAC |  P- |    50 | 18.1 |        
     274 |          MASTER-IAC |  P| |    50 | 18.3 |        
     346 |          MASTER-IAC |  P- |    60 | 18.3 |        
     346 |          MASTER-IAC |  P| |    60 | 18.6 |        
     432 |          MASTER-IAC |  P- |    80 | 18.5 |        
     542 |          MASTER-IAC |  P- |   300 | 19.4 |  Coadd 
     432 |          MASTER-IAC |  P| |    80 | 18.9 |        
     542 |          MASTER-IAC |  P| |   300 | 19.7 |  Coadd 
     541 |          MASTER-IAC |  P- |   100 | 18.6 |        
     541 |          MASTER-IAC |  P| |   100 | 19.0 |        
     667 |          MASTER-IAC |  P- |   120 | 18.8 |        
     667 |          MASTER-IAC |  P| |   120 | 19.1 |        
     817 |          MASTER-IAC |  P- |   150 | 19.0 |        
     997 |          MASTER-IAC |  P- |   510 | 19.1 |  Coadd 
     817 |          MASTER-IAC |  P| |   150 | 19.3 |        
     997 |          MASTER-IAC |  P| |   510 | 19.4 |  Coadd 
     997 |          MASTER-IAC |  P- |   180 | 19.0 |        
     997 |          MASTER-IAC |  P| |   180 | 19.3 |        
    1807 |          MASTER-IAC |  P| |  1800 | 18.9 |  Coadd 
    1207 |          MASTER-IAC |  P- |   180 | 19.0 |        
    1208 |          MASTER-IAC |  P| |   180 | 19.2 |        
    1417 |          MASTER-IAC |  P- |   180 | 19.0 |        
    1597 |          MASTER-IAC |  P- |   540 | 19.8 |  Coadd 
    1417 |          MASTER-IAC |  P| |   180 | 19.3 |        
    1597 |          MASTER-IAC |  P| |   540 | 20.0 |  Coadd 
    1642 |          MASTER-IAC |  P- |   180 | 19.0 |        
    1647 |          MASTER-IAC |  P| |   180 | 19.3 |        
    1861 |          MASTER-IAC |  P- |   180 | 19.1 |        
    1863 |          MASTER-IAC |  P| |   180 | 19.2 |        
    2074 |          MASTER-IAC |  P- |   180 | 19.1 |        
    2254 |          MASTER-IAC |  P- |   540 | 19.6 |  Coadd 
    2074 |          MASTER-IAC |  P| |   180 | 19.2 |        
    2254 |          MASTER-IAC |  P| |   540 | 19.9 |  Coadd 
    2291 |          MASTER-IAC |  P- |   180 | 18.9 |        
    2292 |          MASTER-IAC |  P| |   180 | 19.0 |        
    2502 |          MASTER-IAC |  P- |   180 | 19.1 |        
    2502 |          MASTER-IAC |  P| |   180 | 19.2 |        
    3838 |          MASTER-IAC |  P- |    20 | 16.4 |        
    3873 |          MASTER-IAC |  P- |    90 | 17.1 |  Coadd 
    4153 |          MASTER-IAC |  P- |   650 | 17.7 |  Coadd 
    3838 |          MASTER-IAC |  P| |    20 | 17.2 |        
    3873 |          MASTER-IAC |  P| |    90 | 18.1 |  Coadd 
    4153 |          MASTER-IAC |  P| |   650 | 18.9 |  Coadd 
    3891 |          MASTER-IAC |  P- |    30 | 16.5 |        
    3892 |          MASTER-IAC |  P| |    30 | 17.5 |        
    3942 |          MASTER-IAC |  P- |    40 | 16.6 |        
    3942 |          MASTER-IAC |  P| |    40 | 17.7 |        
    4003 |          MASTER-IAC |  P- |    50 | 16.7 |        
    4073 |          MASTER-IAC |  P- |   190 | 17.3 |  Coadd 
    4003 |          MASTER-IAC |  P| |    50 | 17.8 |        
    4073 |          MASTER-IAC |  P| |   190 | 18.5 |  Coadd 
    4078 |          MASTER-IAC |  P- |    60 | 16.8 |        
    4078 |          MASTER-IAC |  P| |    60 | 17.7 |        
    4165 |          MASTER-IAC |  P- |    80 | 16.7 |        
    4165 |          MASTER-IAC |  P| |    80 | 17.8 |        
    4273 |          MASTER-IAC |  P- |   100 | 16.7 |        
    4408 |          MASTER-IAC |  P- |   370 | 17.1 |  Coadd 
    4273 |          MASTER-IAC |  P| |   100 | 17.8 |        
    4408 |          MASTER-IAC |  P| |   370 | 18.3 |  Coadd 
    4400 |          MASTER-IAC |  P- |   120 | 16.5 |        
    4400 |          MASTER-IAC |  P| |   120 | 17.7 |        
    4550 |          MASTER-IAC |  P- |   150 | 16.4 |        
    4550 |          MASTER-IAC |  P| |   150 | 17.5 |        
    4730 |          MASTER-IAC |  P| |   180 | 17.1 |        
    4730 |          MASTER-IAC |  P- |   180 | 16.2 |        
    4946 |          MASTER-IAC |  P| |   180 | 16.5 |        
    5836 |         MASTER-OAFA |   C |   180 | 14.7 |        
    6016 |         MASTER-OAFA |   C |   540 | 16.3 |  Coadd 
    6646 |         MASTER-OAFA |   C |  1800 | 17.7 |  Coadd 
    6057 |         MASTER-OAFA |   C |   180 | 15.7 |        
    6279 |         MASTER-OAFA |   C |   180 | 16.2 |        
    6502 |         MASTER-OAFA |   C |   180 | 16.5 |        
    6682 |         MASTER-OAFA |   C |   540 | 17.2 |  Coadd 
    6723 |         MASTER-OAFA |   C |   180 | 16.7 |        
    6943 |         MASTER-OAFA |   C |   180 | 16.7 |        
    7164 |         MASTER-OAFA |   C |   180 | 16.8 |        
    7344 |         MASTER-OAFA |   C |   540 | 17.5 |  Coadd 
    7384 |         MASTER-OAFA |   C |   180 | 16.9 |        
    7606 |         MASTER-OAFA |   C |   180 | 17.0 |        
    7826 |         MASTER-OAFA |   C |   180 | 17.0 |        
    8006 |         MASTER-OAFA |   C |   540 | 17.7 |  Coadd 
    8046 |         MASTER-OAFA |   C |   180 | 17.2 |        
    8856 |         MASTER-OAFA |   C |  1800 | 18.4 |  Coadd 
    8268 |         MASTER-OAFA |   C |   180 | 17.3 |        
    8491 |         MASTER-OAFA |   C |   180 | 17.3 |        
    8671 |         MASTER-OAFA |   C |   540 | 17.9 |  Coadd 
    8714 |         MASTER-OAFA |   C |   180 | 17.3 |        
    8935 |         MASTER-OAFA |   C |   180 | 17.5 |        
    9156 |         MASTER-OAFA |   C |   180 | 17.4 |        
    9336 |         MASTER-OAFA |   C |   540 | 18.1 |  Coadd 
    9376 |         MASTER-OAFA |   C |   180 | 17.6 |        
    9599 |         MASTER-OAFA |   C |   180 | 17.6 |        
    9823 |         MASTER-OAFA |   C |   180 | 17.7 |        
   10003 |         MASTER-OAFA |   C |   540 | 18.2 |  Coadd 
   10047 |         MASTER-OAFA |   C |   180 | 17.5 |        
   10269 |         MASTER-OAFA |   C |   180 | 17.6 |        
   11079 |         MASTER-OAFA |   C |  1800 | 18.9 |  Coadd 
   10491 |         MASTER-OAFA |   C |   180 | 17.7 |        
   10671 |         MASTER-OAFA |   C |   540 | 18.3 |  Coadd 
   10712 |         MASTER-OAFA |   C |   180 | 17.8 |        
   10937 |         MASTER-OAFA |   C |   180 | 17.8 |        
   11159 |         MASTER-OAFA |   C |   180 | 17.8 |        
   11339 |         MASTER-OAFA |   C |   540 | 18.3 |  Coadd 
   11382 |         MASTER-OAFA |   C |   180 | 17.8 |        
   11602 |         MASTER-OAFA |   C |   180 | 17.7 |        
   11821 |         MASTER-OAFA |   C |   180 | 17.9 |        
   12001 |         MASTER-OAFA |   C |   540 | 18.2 |  Coadd 
   12044 |         MASTER-OAFA |   C |   180 | 17.8 |        
   12265 |         MASTER-OAFA |   C |   180 | 17.9 |        
   12487 |         MASTER-OAFA |   C |   180 | 17.8 |        
   12667 |         MASTER-OAFA |   C |   540 | 18.5 |  Coadd 
   13297 |         MASTER-OAFA |   C |  1800 | 19.1 |  Coadd 
   12711 |         MASTER-OAFA |   C |   180 | 17.8 |        
   12931 |         MASTER-OAFA |   C |   180 | 17.9 |        
   13153 |         MASTER-OAFA |   C |   180 | 17.9 |        
   13333 |         MASTER-OAFA |   C |   540 | 18.5 |  Coadd 
   13377 |         MASTER-OAFA |   C |   180 | 18.0 |        
   13602 |         MASTER-OAFA |   C |   180 | 18.0 |        
   13823 |         MASTER-OAFA |   C |   180 | 18.0 |        
   14003 |         MASTER-OAFA |   C |   540 | 18.6 |  Coadd 
   14046 |         MASTER-OAFA |   C |   180 | 17.9 |        
   14265 |         MASTER-OAFA |   C |   180 | 17.9 |        
   14488 |         MASTER-OAFA |   C |   180 | 17.8 |        
   14668 |         MASTER-OAFA |   C |   540 | 18.4 |  Coadd 
   14712 |         MASTER-OAFA |   C |   180 | 17.8 |        
   14934 |         MASTER-OAFA |   C |   180 | 17.8 |        
   15157 |         MASTER-OAFA |   C |   180 | 17.9 |        
   15337 |         MASTER-OAFA |   C |   540 | 18.5 |  Coadd 
   15379 |         MASTER-OAFA |   C |   180 | 18.0 |        
   15601 |         MASTER-OAFA |   C |   180 | 17.8 |        
   15825 |         MASTER-OAFA |   C |   180 | 17.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 847
TYPE = 35
DAYS = 0.5


MASTER-IAC robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Spain (IAC Teide Observatory) was pointed to the SWIFT GRB190427.19 ( 18h 40m 51.12s , +40d 19m 19.20s, R=0.05) errorbox  40 sec after trigger time at 2019-04-27 04:34:54 UT, with upper limit up to  20.1 mag. The observations began at zenit distance = 16 deg. The sun  altitude  is -23.5 deg. 

MASTER-SAAO robotic telescope  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB190427.19 errorbox  44 sec after trigger time at 2019-04-27 04:34:58 UT, with upper limit up to  13.2 mag. Observations started at twilight.  The observations began at zenit distance = 75 deg. The sun  altitude  is -7.5 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) was pointed to the SWIFT GRB190427.19 errorbox  5746 sec after trigger time at 2019-04-27 06:10:00 UT, with upper limit up to  19.1 mag. The observations began at zenit distance = 81 deg. The sun  altitude  is -61.7 deg. 

The galactic latitude b = -60 deg., longitude l = 98 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1004408

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

      45 |          MASTER-IAC |  P- |    10 | 16.8 |        
      70 |          MASTER-IAC |  P- |    60 | 18.0 |  Coadd 
     370 |          MASTER-IAC |  P- |   660 | 19.8 |  Coadd 
      45 |          MASTER-IAC |  P| |    10 | 17.1 |        
      70 |          MASTER-IAC |  P| |    60 | 18.4 |  Coadd 
     370 |          MASTER-IAC |  P| |   660 | 20.1 |  Coadd 
      50 |         MASTER-SAAO |  P\ |    10 | 13.3 |        
      77 |         MASTER-SAAO |  P\ |    10 | 13.2 |        
     100 |          MASTER-IAC |  P- |    20 | 17.4 |        
     100 |          MASTER-IAC |  P| |    20 | 17.6 |        
     108 |         MASTER-SAAO |  P\ |    20 | 13.1 |        
     160 |          MASTER-IAC |  P- |    30 | 17.7 |        
     160 |          MASTER-IAC |  P| |    30 | 17.9 |        
     212 |          MASTER-IAC |  P- |    40 | 17.9 |        
     267 |          MASTER-IAC |  P- |   150 | 19.0 |  Coadd 
     212 |          MASTER-IAC |  P| |    40 | 18.2 |        
     267 |          MASTER-IAC |  P| |   150 | 19.0 |  Coadd 
     274 |          MASTER-IAC |  P- |    50 | 18.1 |        
     274 |          MASTER-IAC |  P| |    50 | 18.3 |        
     346 |          MASTER-IAC |  P- |    60 | 18.3 |        
     346 |          MASTER-IAC |  P| |    60 | 18.6 |        
     432 |          MASTER-IAC |  P- |    80 | 18.5 |        
     542 |          MASTER-IAC |  P- |   300 | 19.4 |  Coadd 
     432 |          MASTER-IAC |  P| |    80 | 18.9 |        
     542 |          MASTER-IAC |  P| |   300 | 19.7 |  Coadd 
     541 |          MASTER-IAC |  P- |   100 | 18.6 |        
     541 |          MASTER-IAC |  P| |   100 | 19.0 |        
     667 |          MASTER-IAC |  P- |   120 | 18.8 |        
     667 |          MASTER-IAC |  P| |   120 | 19.1 |        
     817 |          MASTER-IAC |  P- |   150 | 19.0 |        
     997 |          MASTER-IAC |  P- |   510 | 19.1 |  Coadd 
     817 |          MASTER-IAC |  P| |   150 | 19.3 |        
     997 |          MASTER-IAC |  P| |   510 | 19.4 |  Coadd 
     997 |          MASTER-IAC |  P- |   180 | 19.0 |        
     997 |          MASTER-IAC |  P| |   180 | 19.3 |        
    1807 |          MASTER-IAC |  P| |  1800 | 18.9 |  Coadd 
    1207 |          MASTER-IAC |  P- |   180 | 19.0 |        
    1208 |          MASTER-IAC |  P| |   180 | 19.2 |        
    1417 |          MASTER-IAC |  P- |   180 | 19.0 |        
    1597 |          MASTER-IAC |  P- |   540 | 19.8 |  Coadd 
    1417 |          MASTER-IAC |  P| |   180 | 19.3 |        
    1597 |          MASTER-IAC |  P| |   540 | 20.0 |  Coadd 
    1642 |          MASTER-IAC |  P- |   180 | 19.0 |        
    1647 |          MASTER-IAC |  P| |   180 | 19.3 |        
    1861 |          MASTER-IAC |  P- |   180 | 19.1 |        
    1863 |          MASTER-IAC |  P| |   180 | 19.2 |        
    2074 |          MASTER-IAC |  P- |   180 | 19.1 |        
    2254 |          MASTER-IAC |  P- |   540 | 19.6 |  Coadd 
    2074 |          MASTER-IAC |  P| |   180 | 19.2 |        
    2254 |          MASTER-IAC |  P| |   540 | 19.9 |  Coadd 
    2291 |          MASTER-IAC |  P- |   180 | 18.9 |        
    2292 |          MASTER-IAC |  P| |   180 | 19.0 |        
    2502 |          MASTER-IAC |  P- |   180 | 19.1 |        
    2502 |          MASTER-IAC |  P| |   180 | 19.2 |        
    3838 |          MASTER-IAC |  P- |    20 | 16.4 |        
    3873 |          MASTER-IAC |  P- |    90 | 17.1 |  Coadd 
    4153 |          MASTER-IAC |  P- |   650 | 17.7 |  Coadd 
    3838 |          MASTER-IAC |  P| |    20 | 17.2 |        
    3873 |          MASTER-IAC |  P| |    90 | 18.1 |  Coadd 
    4153 |          MASTER-IAC |  P| |   650 | 18.9 |  Coadd 
    3891 |          MASTER-IAC |  P- |    30 | 16.5 |        
    3892 |          MASTER-IAC |  P| |    30 | 17.5 |        
    3942 |          MASTER-IAC |  P- |    40 | 16.6 |        
    3942 |          MASTER-IAC |  P| |    40 | 17.7 |        
    4003 |          MASTER-IAC |  P- |    50 | 16.7 |        
    4073 |          MASTER-IAC |  P- |   190 | 17.3 |  Coadd 
    4003 |          MASTER-IAC |  P| |    50 | 17.8 |        
    4073 |          MASTER-IAC |  P| |   190 | 18.5 |  Coadd 
    4078 |          MASTER-IAC |  P- |    60 | 16.8 |        
    4078 |          MASTER-IAC |  P| |    60 | 17.7 |        
    4165 |          MASTER-IAC |  P- |    80 | 16.7 |        
    4165 |          MASTER-IAC |  P| |    80 | 17.8 |        
    4273 |          MASTER-IAC |  P- |   100 | 16.7 |        
    4408 |          MASTER-IAC |  P- |   370 | 17.1 |  Coadd 
    4273 |          MASTER-IAC |  P| |   100 | 17.8 |        
    4408 |          MASTER-IAC |  P| |   370 | 18.3 |  Coadd 
    4400 |          MASTER-IAC |  P- |   120 | 16.5 |        
    4400 |          MASTER-IAC |  P| |   120 | 17.7 |        
    4550 |          MASTER-IAC |  P- |   150 | 16.4 |        
    4550 |          MASTER-IAC |  P| |   150 | 17.5 |        
    4730 |          MASTER-IAC |  P| |   180 | 17.1 |        
    4730 |          MASTER-IAC |  P- |   180 | 16.2 |        
    4946 |          MASTER-IAC |  P| |   180 | 16.5 |        
    5836 |         MASTER-OAFA |   C |   180 | 14.7 |        
    6016 |         MASTER-OAFA |   C |   540 | 16.3 |  Coadd 
    6646 |         MASTER-OAFA |   C |  1800 | 17.7 |  Coadd 
    6057 |         MASTER-OAFA |   C |   180 | 15.7 |        
    6279 |         MASTER-OAFA |   C |   180 | 16.2 |        
    6502 |         MASTER-OAFA |   C |   180 | 16.5 |        
    6682 |         MASTER-OAFA |   C |   540 | 17.2 |  Coadd 
    6723 |         MASTER-OAFA |   C |   180 | 16.7 |        
    6943 |         MASTER-OAFA |   C |   180 | 16.7 |        
    7164 |         MASTER-OAFA |   C |   180 | 16.8 |        
    7344 |         MASTER-OAFA |   C |   540 | 17.5 |  Coadd 
    7384 |         MASTER-OAFA |   C |   180 | 16.9 |        
    7606 |         MASTER-OAFA |   C |   180 | 17.0 |        
    7826 |         MASTER-OAFA |   C |   180 | 17.0 |        
    8006 |         MASTER-OAFA |   C |   540 | 17.7 |  Coadd 
    8046 |         MASTER-OAFA |   C |   180 | 17.2 |        
    8856 |         MASTER-OAFA |   C |  1800 | 18.4 |  Coadd 
    8268 |         MASTER-OAFA |   C |   180 | 17.3 |        
    8491 |         MASTER-OAFA |   C |   180 | 17.3 |        
    8671 |         MASTER-OAFA |   C |   540 | 17.9 |  Coadd 
    8714 |         MASTER-OAFA |   C |   180 | 17.3 |        
    8935 |         MASTER-OAFA |   C |   180 | 17.5 |        
    9156 |         MASTER-OAFA |   C |   180 | 17.4 |        
    9336 |         MASTER-OAFA |   C |   540 | 18.1 |  Coadd 
    9376 |         MASTER-OAFA |   C |   180 | 17.6 |        
    9599 |         MASTER-OAFA |   C |   180 | 17.6 |        
    9823 |         MASTER-OAFA |   C |   180 | 17.7 |        
   10003 |         MASTER-OAFA |   C |   540 | 18.2 |  Coadd 
   10047 |         MASTER-OAFA |   C |   180 | 17.5 |        
   10269 |         MASTER-OAFA |   C |   180 | 17.6 |        
   11079 |         MASTER-OAFA |   C |  1800 | 18.9 |  Coadd 
   10491 |         MASTER-OAFA |   C |   180 | 17.7 |        
   10671 |         MASTER-OAFA |   C |   540 | 18.3 |  Coadd 
   10712 |         MASTER-OAFA |   C |   180 | 17.8 |        
   10937 |         MASTER-OAFA |   C |   180 | 17.8 |        
   11159 |         MASTER-OAFA |   C |   180 | 17.8 |        
   11339 |         MASTER-OAFA |   C |   540 | 18.3 |  Coadd 
   11382 |         MASTER-OAFA |   C |   180 | 17.8 |        
   11602 |         MASTER-OAFA |   C |   180 | 17.7 |        
   11821 |         MASTER-OAFA |   C |   180 | 17.9 |        
   12001 |         MASTER-OAFA |   C |   540 | 18.2 |  Coadd 
   12044 |         MASTER-OAFA |   C |   180 | 17.8 |        
   12265 |         MASTER-OAFA |   C |   180 | 17.9 |        
   12487 |         MASTER-OAFA |   C |   180 | 17.8 |        
   12667 |         MASTER-OAFA |   C |   540 | 18.5 |  Coadd 
   13297 |         MASTER-OAFA |   C |  1800 | 19.1 |  Coadd 
   12711 |         MASTER-OAFA |   C |   180 | 17.8 |        
   12931 |         MASTER-OAFA |   C |   180 | 17.9 |        
   13153 |         MASTER-OAFA |   C |   180 | 17.9 |        
   13333 |         MASTER-OAFA |   C |   540 | 18.5 |  Coadd 
   13377 |         MASTER-OAFA |   C |   180 | 18.0 |        
   13602 |         MASTER-OAFA |   C |   180 | 18.0 |        
   13823 |         MASTER-OAFA |   C |   180 | 18.0 |        
   14003 |         MASTER-OAFA |   C |   540 | 18.6 |  Coadd 
   14046 |         MASTER-OAFA |   C |   180 | 17.9 |        
   14265 |         MASTER-OAFA |   C |   180 | 17.9 |        
   14488 |         MASTER-OAFA |   C |   180 | 17.8 |        
   14668 |         MASTER-OAFA |   C |   540 | 18.4 |  Coadd 
   14712 |         MASTER-OAFA |   C |   180 | 17.8 |        
   14934 |         MASTER-OAFA |   C |   180 | 17.8 |        
   15157 |         MASTER-OAFA |   C |   180 | 17.9 |        
   15337 |         MASTER-OAFA |   C |   540 | 18.5 |  Coadd 
   15379 |         MASTER-OAFA |   C |   180 | 18.0 |        
   15601 |         MASTER-OAFA |   C |   180 | 17.8 |        
   15825 |         MASTER-OAFA |   C |   180 | 17.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 846
TYPE = 35
DAYS = 0.1


MASTER-IAC robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Spain (IAC Teide Observatory) was pointed to the SWIFT GRB190427.19 ( 18h 40m 51.12s , +40d 19m 19.20s, R=0.05) errorbox  40 sec after trigger time at 2019-04-27 04:34:54 UT, with upper limit up to  19.3 mag. The observations began at zenit distance = 16 deg. The sun  altitude  is -23.5 deg. 

MASTER-SAAO robotic telescope  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB190427.19 errorbox  44 sec after trigger time at 2019-04-27 04:34:58 UT, with upper limit up to  13.2 mag. Observations started at twilight.  The observations began at zenit distance = 75 deg. The sun  altitude  is -7.5 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) was pointed to the SWIFT GRB190427.19 errorbox  5746 sec after trigger time at 2019-04-27 06:10:00 UT, with upper limit up to  17.7 mag. The observations began at zenit distance = 81 deg. The sun  altitude  is -61.7 deg. 

The galactic latitude b = -60 deg., longitude l = 98 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1004407

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

      45 |          MASTER-IAC |  P- |    10 | 16.8 |        
      45 |          MASTER-IAC |  P| |    10 | 17.1 |        
      50 |         MASTER-SAAO |  P\ |    10 | 13.3 |        
      77 |         MASTER-SAAO |  P\ |    10 | 13.2 |        
     100 |          MASTER-IAC |  P- |    20 | 17.4 |        
     100 |          MASTER-IAC |  P| |    20 | 17.6 |        
     108 |         MASTER-SAAO |  P\ |    20 | 13.1 |        
     160 |          MASTER-IAC |  P- |    30 | 17.7 |        
     160 |          MASTER-IAC |  P| |    30 | 17.9 |        
     212 |          MASTER-IAC |  P- |    40 | 17.9 |        
     212 |          MASTER-IAC |  P| |    40 | 18.2 |        
     274 |          MASTER-IAC |  P- |    50 | 18.1 |        
     274 |          MASTER-IAC |  P| |    50 | 18.3 |        
     346 |          MASTER-IAC |  P- |    60 | 18.3 |        
     346 |          MASTER-IAC |  P| |    60 | 18.6 |        
     432 |          MASTER-IAC |  P- |    80 | 18.5 |        
     432 |          MASTER-IAC |  P| |    80 | 18.9 |        
     541 |          MASTER-IAC |  P- |   100 | 18.6 |        
     541 |          MASTER-IAC |  P| |   100 | 19.0 |        
     667 |          MASTER-IAC |  P- |   120 | 18.8 |        
     667 |          MASTER-IAC |  P| |   120 | 19.1 |        
     817 |          MASTER-IAC |  P- |   150 | 19.0 |        
     817 |          MASTER-IAC |  P| |   150 | 19.3 |        
     997 |          MASTER-IAC |  P- |   180 | 19.0 |        
     997 |          MASTER-IAC |  P| |   180 | 19.3 |        
    1207 |          MASTER-IAC |  P- |   180 | 19.0 |        
    1208 |          MASTER-IAC |  P| |   180 | 19.2 |        
    1417 |          MASTER-IAC |  P- |   180 | 19.0 |        
    1417 |          MASTER-IAC |  P| |   180 | 19.3 |        
    1642 |          MASTER-IAC |  P- |   180 | 19.0 |        
    1647 |          MASTER-IAC |  P| |   180 | 19.3 |        
    1861 |          MASTER-IAC |  P- |   180 | 19.1 |        
    1863 |          MASTER-IAC |  P| |   180 | 19.2 |        
    2074 |          MASTER-IAC |  P- |   180 | 19.1 |        
    2074 |          MASTER-IAC |  P| |   180 | 19.2 |        
    2291 |          MASTER-IAC |  P- |   180 | 18.9 |        
    2292 |          MASTER-IAC |  P| |   180 | 19.0 |        
    2502 |          MASTER-IAC |  P- |   180 | 19.1 |        
    2502 |          MASTER-IAC |  P| |   180 | 19.2 |        
    3838 |          MASTER-IAC |  P- |    20 | 16.4 |        
    3838 |          MASTER-IAC |  P| |    20 | 17.2 |        
    3891 |          MASTER-IAC |  P- |    30 | 16.5 |        
    3892 |          MASTER-IAC |  P| |    30 | 17.5 |        
    3942 |          MASTER-IAC |  P- |    40 | 16.6 |        
    3942 |          MASTER-IAC |  P| |    40 | 17.7 |        
    4003 |          MASTER-IAC |  P- |    50 | 16.7 |        
    4003 |          MASTER-IAC |  P| |    50 | 17.8 |        
    4078 |          MASTER-IAC |  P- |    60 | 16.8 |        
    4078 |          MASTER-IAC |  P| |    60 | 17.7 |        
    4165 |          MASTER-IAC |  P- |    80 | 16.7 |        
    4165 |          MASTER-IAC |  P| |    80 | 17.8 |        
    4273 |          MASTER-IAC |  P- |   100 | 16.7 |        
    4273 |          MASTER-IAC |  P| |   100 | 17.8 |        
    4400 |          MASTER-IAC |  P- |   120 | 16.5 |        
    4400 |          MASTER-IAC |  P| |   120 | 17.7 |        
    4550 |          MASTER-IAC |  P- |   150 | 16.4 |        
    4550 |          MASTER-IAC |  P| |   150 | 17.5 |        
    4730 |          MASTER-IAC |  P| |   180 | 17.1 |        
    4730 |          MASTER-IAC |  P- |   180 | 16.2 |        
    4946 |          MASTER-IAC |  P| |   180 | 16.5 |        
    5836 |         MASTER-OAFA |   C |   180 | 14.7 |        
    6016 |         MASTER-OAFA |   C |   540 | 16.3 |  Coadd 
    6646 |         MASTER-OAFA |   C |  1800 | 17.7 |  Coadd 
    6057 |         MASTER-OAFA |   C |   180 | 15.7 |        
    6279 |         MASTER-OAFA |   C |   180 | 16.2 |        
    6502 |         MASTER-OAFA |   C |   180 | 16.5 |        
    6682 |         MASTER-OAFA |   C |   540 | 17.2 |  Coadd 
    6723 |         MASTER-OAFA |   C |   180 | 16.7 |        
    6943 |         MASTER-OAFA |   C |   180 | 16.7 |        
    7164 |         MASTER-OAFA |   C |   180 | 16.8 |        
    7344 |         MASTER-OAFA |   C |   540 | 17.5 |  Coadd 
    7384 |         MASTER-OAFA |   C |   180 | 16.9 |        
    7606 |         MASTER-OAFA |   C |   180 | 17.0 |        
    7826 |         MASTER-OAFA |   C |   180 | 17.0 |        
    8006 |         MASTER-OAFA |   C |   540 | 17.7 |  Coadd 
    8046 |         MASTER-OAFA |   C |   180 | 17.2 |        
    8268 |         MASTER-OAFA |   C |   180 | 17.3 |        
    8491 |         MASTER-OAFA |   C |   180 | 17.3 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 845
TYPE = 34
DAYS = 0


MASTER-IAC robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Spain (IAC Teide Observatory) was pointed to the SWIFT GRB190427.19 ( 18h 40m 51.12s , +40d 19m 19.20s, R=0.05) errorbox  40 sec after trigger time at 2019-04-27 04:34:54 UT, with upper limit up to  18.6 mag. The observations began at zenit distance = 16 deg. The sun  altitude  is -23.5 deg. 

MASTER-SAAO robotic telescope  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB190427.19 errorbox  44 sec after trigger time at 2019-04-27 04:34:58 UT, with upper limit up to  13.2 mag. Observations started at twilight.  The observations began at zenit distance = 75 deg. The sun  altitude  is -7.5 deg. 

The galactic latitude b = -60 deg., longitude l = 98 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1004408

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

      45 |          MASTER-IAC |  P- |    10 | 16.8 |        
      45 |          MASTER-IAC |  P| |    10 | 17.1 |        
      50 |         MASTER-SAAO |  P\ |    10 | 13.3 |        
      77 |         MASTER-SAAO |  P\ |    10 | 13.2 |        
     100 |          MASTER-IAC |  P- |    20 | 17.4 |        
     100 |          MASTER-IAC |  P| |    20 | 17.6 |        
     108 |         MASTER-SAAO |  P\ |    20 | 13.1 |        
     160 |          MASTER-IAC |  P- |    30 | 17.7 |        
     160 |          MASTER-IAC |  P| |    30 | 17.9 |        
     212 |          MASTER-IAC |  P- |    40 | 17.9 |        
     212 |          MASTER-IAC |  P| |    40 | 18.2 |        
     274 |          MASTER-IAC |  P- |    50 | 18.1 |        
     274 |          MASTER-IAC |  P| |    50 | 18.3 |        
     346 |          MASTER-IAC |  P- |    60 | 18.3 |        
     346 |          MASTER-IAC |  P| |    60 | 18.6 |        


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 844
TYPE = 35
DAYS = 0.03


MASTER-IAC robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Spain (IAC Teide Observatory) was pointed to the SWIFT GRB190427.19 ( 18h 40m 51.12s , +40d 19m 19.20s, R=0.05) errorbox  40 sec after trigger time at 2019-04-27 04:34:54 UT, with upper limit up to  18.6 mag. The observations began at zenit distance = 16 deg. The sun  altitude  is -23.5 deg. 

MASTER-SAAO robotic telescope  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB190427.19 errorbox  44 sec after trigger time at 2019-04-27 04:34:58 UT, with upper limit up to  13.2 mag. Observations started at twilight.  The observations began at zenit distance = 75 deg. The sun  altitude  is -7.5 deg. 

The galactic latitude b = -60 deg., longitude l = 98 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1004408

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

      45 |          MASTER-IAC |  P- |    10 | 16.8 |        
      45 |          MASTER-IAC |  P| |    10 | 17.1 |        
      50 |         MASTER-SAAO |  P\ |    10 | 13.3 |        
      77 |         MASTER-SAAO |  P\ |    10 | 13.2 |        
     100 |          MASTER-IAC |  P- |    20 | 17.4 |        
     100 |          MASTER-IAC |  P| |    20 | 17.6 |        
     108 |         MASTER-SAAO |  P\ |    20 | 13.1 |        
     160 |          MASTER-IAC |  P- |    30 | 17.7 |        
     160 |          MASTER-IAC |  P| |    30 | 17.9 |        
     212 |          MASTER-IAC |  P- |    40 | 17.9 |        
     212 |          MASTER-IAC |  P| |    40 | 18.2 |        
     274 |          MASTER-IAC |  P- |    50 | 18.1 |        
     274 |          MASTER-IAC |  P| |    50 | 18.3 |        
     346 |          MASTER-IAC |  P- |    60 | 18.3 |        
     346 |          MASTER-IAC |  P| |    60 | 18.6 |        


The observation and reduction will continue. 
The message may be cited.

MASTER, 2002-2025