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GCN Circular 25136

Subject
LIGO/Virgo S190720a: No counterpart candidates in CNEOST observations
Date
2019-07-21T14:01:38Z (5 years ago)
From
Bin Li at PMO <binli@pmo.ac.cn>
Bin Li, Hai-bin Zhao (PMO),Dong Xu, Zi-pei Zhu, Bang-Yao Yu,Tian-meng Zhang, Xu Zhou,Chen-zhou Cui, Hui-juan Wang(NAOC), Xue-feng Wu, Zhi-ping Jin, Tian-rui Sun, Hao Lu, Ge-tu Zhaori, Ren-quan Hong, Long-fei Hu (PMO), Xiao-feng Wang, Wen-xiong Li (THU),Li-fan Wang (PMO/TAMU), Jin-zhong Liu (XAO), Ji-rong Mao, Jin-ming Bai (YNAO),  report on behalf of the CNEOST collaboration.

 We conducted optical imaging observations for gravitational wave alert with Chinese Near Earth Object Survey Telescope (CNEOST) at Xuyi astronomical station in Jiangsu Province, China (32.75N, 118.47E). The information of observations and preliminary results are listed below.

Alert: LIGO/Virgo S190720a (GCN #25115)
StartTime (UT):               2019-07-20T13:52:48.017       
EndTime (UT):                 2019-07-20T14:48:48.031       
Skycover (Square Degree):     135.0   
Telescope FoV (Square Degree):9.0     
#id CentRA(D) CentDEC(D) LimiteMag3_sig 5_sig 10_sig Filter 
  1 231.208405  43.572357    -	     21.204   18.323   SR
  2 242.761490  46.336327   21.949   21.134   18.424   SR
  3 242.799225  43.565426   22.074   21.229   18.375   SR
  4 228.608490  40.790733    -	     21.204   18.483   SR
  5 221.265320  40.808392   21.856   21.045   18.350   SR
  6 231.208405  43.572357    -       21.204   18.323   SR
  7 242.761490  46.336327   21.949   21.134   18.424   SR
  8 242.799225  43.565426   22.074   21.229   18.375   SR
  9 228.608490  40.790733    -       21.204   18.483   SR
 10 221.265320  40.808392   21.856   21.045   18.350   SR
 11 231.208405  43.572357    -       21.204   18.323   SR
 12 242.761490  46.336327   21.949   21.134   18.424   SR
 13 242.799225  43.565426   22.074   21.229   18.375   SR
 14 228.608490  40.790733    -       21.204   18.483   SR
 15 221.265320  40.808392   21.856   21.045   18.350   SR

The new resulte will available at http://www.cneost.org/opem/list.php?gdate=2019-07-20
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