[vsnet-grb-info 21131] GRB 180914A: MASTER automatic inspection

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  23230
SUBJECT: GRB 180914A: MASTER automatic inspection 
DATE:    18/09/15 08:31:45 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov at xray.sai.msu.ru>

V. Lipunov, E. Gorbovskoy, D. Vlasenko, N.Tiurina,
V.Kornilov, A.Kuznetsov, V.Chazov, I.  Gorbunov,
D.Zimnukhov, D.Kuvshinov, P.Balanutsa, V.Vladimirov,
Lomonosov Moscow State University,SAI

A. Tlatov, V.Senik, D. Dormidontov
Kislovodsk Solar Station of the Pulkovo Observatory

D.Svinkin (Ioffe Institute, Sankt Petersburg)

D. Buckley,
South African Astronomical Observatory (SAAO)

R. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres
The Instituto de Astrofisica de Canarias (IAC)

R. Podesta, F. Podesta, C. Lopez, C.Francile
Observatorio Astronomico Felix Aguilar (OAFA)

H.Levato,
Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)

O. Gres, N.M.Budnev , Yu.Ishmuhametova
Irkutsk State University (ISU)

A. Gabovich, V. Yurkov, Yu. Sergienko
Blagoveschensk Educational State University (BSPU)

MASTER-Tunka robotic telescope (MASTER-Net: http://observ.pereplet.ru,
Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located near 
Bykal Lake (Irkutsk University Astrophysical Center) was starting survey
on the FERMI  GRB180914.52  error-box  (Poolakkil et al., GCN #23227).

17768 sec after trigger time at 
2018-09-14 17:27:55 UT. The 5-sigma upper limit on our first (180s 
exposure)  set is about 16.0 mag

No OT found.

MASTER-SAAO robotic telescope (MASTER-Net: http://observ.pereplet.ru, 
Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in 
South Africa (South African Astronomical Observatory) was starting survey 
on the LAT  GRB180914.52  error-box (ra=03 30 
57 dec=-05 15 35 r=0.4, (Bissaldi et al., GCN #23225)). 
15521 sec after notice time and 38331 sec after trigger time at 2018-09-14 
23:10:38 UT. The 5-sigma upper limit on our first (180s exposure)  set is 
about 18.5 mag

The cover map is available at 
http://observ.pereplet.ru/images/GRB180914A.png

No new objects brighter than 18.5 mag  were found after the human analysis 
of automatic candidates.


====================================================================


The galacitc latitude b =  0 deg.

The observations made on zenit distance = 54 deg.The moon (31 % bright 
part) below the horizon (The altitude of the Moon is -19 deg. ).
The sun  altitude  is -59.4 deg.
The object can be observed till sunrise at 2018-09-15 04:35:52



THIS BLOCK FOR MASTER-Team USERS ONLY.

Link to GRB180914.52 page: 
https://196.21.94.34//master2/grb.php?not=2018-09-14+18%3A51%3A56.63329&sat=LAT&gcrd=%2852.7375d%2C-5.25972d%29&eb=0.4&trig=2018-09-14+12%3A31%3A47.25&n=GRB180914.52
Long     transients in E.B. 
https://196.21.94.34//master2/trans.php?wh=transients.coord2000@%27%3C%2852.7375d%2C-5.25972d%29%2C0.8d%3E%27%3A%3Ascircle+and+transients.datetime%3E%3D%272018-09-14+12%3A31%3A47.25%27&class=9&t2=LAT+GRB180914.52+optical+counterpart+candidate
Short    transients in E.B. 
https://196.21.94.34//master2/trans3.php?wh=transients3.coord2000@%27%3C%2852.7375d%2C-5.25972d%29%2C0.8d%3E%27%3A%3Ascircle+and+transients3.datetime%3E%3D%272018-09-14+12%3A31%3A47.25%27&class=-1&t2=LAT+GRB180914.52+optical+counterpart+candidate
Two tube transients in E.B. 
https://196.21.94.34//master2/trans2.php?wh=transients2.coord2000@%27%3C%2852.7375d%2C-5.25972d%29%2C0.8d%3E%27%3A%3Ascircle+and+transients2.datetime%3E%3D%272018-09-14+12%3A31%3A47.25%27&class=0&t2=LAT+GRB180914.52+optical+counterpart+candidate
Undef. objects 1 image 
https://196.21.94.34//master2/aobj.php?wh=stars.coord2000@%27%3C%2852.7375d%2C-5.25972d%29%2C0.8d%3E%27%3A%3Ascircle+and+stars.class=0+and+stars.status+and+stars.proc_id=578290&t2=LAT+GRB180914.52+1+image+optical+counterpart+candidate

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