Integral GRB240502.23: Global MASTER-Net observations report

MASTER-Amur robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Blagoveshchensk State Pedagogical University) was pointed to the Integral GRB240502.23 (trigger No 10671,07h 34m 35.27s , +16d 45m 27.8s, R=0.0545) errorbox 23897 sec after notice time and 23928 sec after trigger time at 2024-05-02 12:07:33 UT, with upper limit up to 17.3 mag. Observations started at twilight. The observations began at zenith distance = 56 deg. The sun altitude is -11.1 deg. The galactic latitude b = 17 deg., longitude l = 203 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2441081 We obtain a following upper limits. Tmid-T0 | Site |Filt.| Expt. | Limit| Comment _________|_____________________|_____|_______|______|________ 24018 | MASTER-Amur | C | 180 | 17.3 | 24018 | MASTER-Amur | C | 180 | 15.2 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.