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GCN Circular 25663

Subject
LIGO/Virgo S190901ap: No counterpart candidates in KAIT observations
Date
2019-09-05T00:01:34Z (5 years ago)
From
Weikang Zheng at UC Berkeley <weikang@berkeley.edu>
Sergiy Vasylyev, Nachiket Girish, Thomas de Jaeger, Yukei Murakami,
Benjamin E. Stahl, Keto D. Zhang, James Sunseri, Shaunak Modak,
WeiKang Zheng, Andrew Hoffman, and Alexei V. Filippenko (UC Berkeley)
report on behalf of the Lick/KAIT GW follow-up team:

The 0.76-m Katzman Automatic Imaging Telescope (KAIT), located at
Lick Observatory, observed the 90% region of the gravitational-wave
event S190901ap (GCN 25606; GCN 25614) detected by LIGO/Virgo. More
than one thousand galaxies were selected from the Glade catalog V1.0
(Dalya et al., 2018, MNRAS, 479, 2374; http://aquarius.elte.hu/glade/)
according to their priority score. KAIT observed 156 of them on
Sep. 02 UT starting at 3.8 hours after the trigger, and additional
143 on Sep. 03 UT starting at 1.37 days after the trigger, according
to their priority scores and elevation visibility, with each clear-filter
exposure time being 60 s. Our typical limiting mag is 19.0. No viable
counterparts were identified and the analysis is ongoing. A full list
of galaxies observed by KAIT is given below.

In addition, we took 7x180s clear band images of ZTF19abvizsw/AT2019pim
(Kool et al., GCN 25616), now considered as an unrelated GRB optical
afterglows candidate (Burdge et al., GCN 25639; Wei et al., GCN 25640;
Perley et al., GCN 25643; Salmaso et al., GCN 25650; Levan et al.,
GCN 25653; Becerra et al., GCN 25655; Ho et al., GCN 25658). We estimate
the clear band magnitude to be ~21.3 +/- 0.2 mag in our co-added image at
Sep. 04.23 UT, calibrated to PS1 catalog.

GladeID   UT(Sep02)  RA_J2000   Dec_J2000
-----------------------------------------------
G0194613  03:19:18  14:31:05.4346  +00:36:46.4688
G1875693  03:22:46  14:31:39.36    -00:17:11.94
G0603373  03:23:55  14:31:44.381   +00:48:42.7932
G1878039  03:25:04  14:32:14.88    +00:47:01.356
G1733195  03:26:14  14:32:41.52    +00:47:29.832
G0658315  03:27:23  14:32:48.7318  +02:04:41.9088
G0905344  03:28:32  14:32:53.1482  +01:32:24.414
G0740361  03:29:42  14:33:15.055   -00:49:28.992
G0663999  03:30:53  14:33:20.1562  +00:39:52.5492
G0307996  03:32:02  14:33:29.1614  +00:46:53.3316
G0757580  03:33:12  14:33:35.365   +00:54:26.3196
G0608391  03:34:23  14:33:36.7675  -01:05:05.6112
G0748622  03:35:32  14:33:44.8279  +00:47:42.3024
G0664011  03:36:42  14:33:57.2167  +00:35:10.8528
G0745915  03:37:53  14:34:09.0014  +01:37:00.8616
G1742502  03:39:07  14:34:13.92    +03:01:40.116
G0737461  03:40:16  14:34:23.7269  +02:23:31.038
G0783945  03:41:25  14:34:27.0667  +01:04:49.0404
G1278665  03:42:34  14:34:38.0712  +01:38:46.0392
G0756340  03:43:44  14:34:42.1363  +00:54:50.0364
G1742550  03:44:53  14:34:47.76    +02:02:28.536
G0713702  03:46:48  15:20:51.7932  -00:43:47.9316
G1224425  03:47:57  15:21:02.4096  -03:33:40.914
G0020414  03:49:07  15:21:08.7708  -07:20:45.6684
G1403147  03:50:16  15:21:15.9667  -10:11:20.67
G0838596  03:51:29  15:21:18.5669  -04:18:36.8172
G0917972  03:52:41  15:21:23.269   -12:04:38.2476
G0331855  03:53:50  15:21:33.2374  -08:49:50.6424
G1450425  03:54:59  15:21:34.6142  -08:04:07.6404
G1290735  03:56:09  15:21:48.6254  -06:14:40.0632
G0303133  03:57:18  15:22:05.8226  -05:28:59.1924
G0971203  03:58:29  15:23:07.3058  +01:25:40.9296
G1147715  03:59:43  15:23:59.0551  -10:49:57.8712
G0042791  04:00:54  15:24:16.7506  -05:46:36.102
G1109765  04:02:04  15:24:44.8205  -04:40:08.346
G1362904  04:03:13  15:25:47.7394  -06:52:10.0992
G0070527  04:04:22  15:25:51.7714  -01:53:01.3236
G1191119  04:05:33  15:26:42.9382  +00:13:14.7504
G1452726  04:06:44  15:27:11.8543  -08:35:42.1188
G0940632  04:07:53  15:27:14.6155  -04:44:00.51
G0936205  04:09:03  15:27:19.314   -05:19:06.5028
G1059447  04:10:14  15:28:06.6029  -11:12:38.5776
G0883642  04:11:25  15:29:02.5378  -05:34:13.152
G0928928  04:12:34  15:29:20.3357  -05:25:03.3528
G0906688  04:13:46  15:30:27.7735  -10:56:40.6788
G1388643  04:14:55  15:34:27.9749  -09:15:48.906
G0214088  04:16:06  15:34:42.9053  -04:14:22.6068
G1461463  04:17:18  15:35:15.2527  -09:24:21.5568
G1172917  04:18:27  15:36:50.2661  -06:06:55.4328
G0989502  04:19:36  15:37:52.2437  -07:12:55.4724
G0536188  04:20:48  15:24:40.177   -12:42:49.8276
G0566794  04:27:19  16:02:19.8449  +16:20:46.2552
G0395107  04:28:28  16:04:26.7298  +17:45:01.188
G0479641  04:29:38  16:05:44.5862  +16:12:11.8944
G0593543  04:30:47  16:06:22.8334  +19:46:40.2636
G0668634  04:31:56  16:06:42.0703  +16:19:11.154
G0657647  04:33:35  16:11:11.0083  +61:16:04.5444
G0627263  04:35:18  16:12:53.357   -21:37:24.0528
G0554714  04:36:44  16:13:04.9805  +30:54:05.994
G0684706  04:38:11  16:14:57.0154  +55:52:25.0428
G0789194  04:39:34  16:28:38.2764  +39:33:04.968
G0666910  04:40:54  16:32:57.2095  +50:24:05.1156
G0708649  04:42:20  16:34:25.4846  +21:32:27.0096
G0818453  04:43:46  16:43:23.1554  -24:52:47.0784
G0636473  04:45:10  16:45:26.4149  +18:12:30.3948
G0004443  04:46:33  16:49:03.6732  -17:38:45.3732
G0667530  04:47:42  16:49:21.0204  -17:38:40.326
G0628454  04:48:52  16:50:53.4228  -15:00:14.346
G0559558  04:50:01  16:52:07.7491  -17:03:13.518
G0609502  04:51:12  16:53:04.8559  -16:17:27.3552
G0788598  04:52:40  16:53:52.207   +39:45:36.9288
G0748918  04:54:05  16:54:08.7598  -07:38:07.314
G0613278  04:55:16  16:54:53.6462  -16:57:07.2756
G0771147  04:56:40  16:57:58.0994  +27:51:15.7248
G0644414  04:57:58  17:06:49.8048  +42:25:24.492
G0602659  04:59:23  17:10:50.4713  -06:30:43.0848
G0656855  05:00:33  17:11:14.9486  -05:21:58.3812
G0624001  05:01:42  17:12:33.2081  -05:35:26.7432
G0633958  05:02:55  17:18:54.0893  +08:26:26.9448
G1041639  05:04:19  17:20:15.6739  +39:15:37.8468
G0393771  05:05:44  17:21:28.9747  -07:09:55.9764
G0601575  05:06:55  17:21:45.4687  -00:47:43.2564
G0611033  05:08:10  17:23:05.3832  +12:41:43.512
G0686176  05:09:26  17:24:37.8295  -02:43:06.222
G0678938  05:10:35  17:27:40.6349  -06:41:02.238
G0585341  05:11:45  17:35:42.6854  -07:41:34.7424
G0707284  05:13:08  17:40:05.1636  +33:48:41.1012
G0710164  05:15:07  17:42:31.9702  +00:13:00.336
G1308107  05:16:19  17:42:50.2001  -09:43:26.5872
G0669959  05:17:43  17:45:14.4214  +38:54:57.7944
G1059666  05:19:01  17:48:43.2055  +24:39:07.3404
G0627653  05:20:19  17:50:35.0904  -01:39:06.3288
G0771881  05:21:43  17:52:41.8286  +29:50:19.3596
G0563085  05:23:01  17:55:27.9053  -00:01:52.5144
G0636803  05:24:20  17:56:20.2442  +26:21:59.58
G0638214  05:25:38  18:02:09.4776  +12:52:02.1504
G0754747  05:26:50  18:11:54.9024  +07:43:50.61
G1347890  05:27:59  18:12:50.4859  +07:30:08.928
G0794966  05:29:12  18:14:28.5058  +00:46:55.1928
G1856081  05:30:26  18:16:40.56    +15:17:56.04
G0233642  05:31:42  18:26:07.163   +03:01:37.5384
G0826631  05:32:55  18:28:01.4722  +16:07:32.7612
G0154905  05:34:20  18:52:14.1797  -23:16:18.21
G0691261  05:35:50  18:57:37.5     +38:00:32.202
G1849647  05:37:31  22:49:54.72    +11:36:29.592
G0010892  06:31:39  23:14:54.2578  -20:59:45.3408
G0706844  06:32:51  23:17:27.2242  -10:01:50.466
G0703575  06:35:09  23:18:52.5439  -10:15:33.5268
G0551567  06:36:21  23:21:14.1725  -21:14:09.8736
G0553140  06:37:30  23:22:00.9228  -23:30:24.6924
G0582772  06:38:41  23:22:35.2735  -13:05:38.8392
G0001180  06:39:51  23:24:06.9506  -11:51:38.6856
G0800782  06:41:00  23:29:56.6969  -12:29:05.7048
G0606247  06:42:09  23:30:23.7377  -12:04:45.5448
G0820960  06:43:23  23:32:31.3476  -24:00:18.5652
G0556216  06:44:32  23:37:06.9288  -20:27:47.0988
G0612966  06:45:41  23:40:45.9667  -20:30:31.5108
G0666486  06:46:55  23:41:52.6685  -08:38:53.7144
G0579080  06:48:08  23:45:31.3037  -20:58:49.8036
G0751781  06:51:36  23:48:54.7118  -16:32:28.2588
G1852091  06:52:43  23:48:56.88    -16:32:24.684
G0748482  06:53:53  23:54:20.9254  -17:18:21.0348
G0733653  06:55:02  23:56:47.7247  -16:30:34.5924
G0755443  06:56:12  23:58:40.525   -17:33:31.7124
G0755095  07:30:01  00:07:10.2658  -21:47:11.5008
G0559232  07:31:14  00:11:12.5945  -33:34:42.8016
G0555127  07:32:26  00:13:02.9052  -24:12:52.5024
G0587522  07:33:35  00:19:04.9488  -22:56:11.184
G0665013  07:34:47  00:19:09.3768  -24:31:23.2068
G0552516  07:35:57  00:22:38.9513  -24:07:36.9624
G0823492  07:37:08  00:31:49.3798  -26:43:13.926
G0740509  07:38:17  00:36:27.3996  -27:47:07.4472
G0708432  07:39:31  00:53:54.0602  -31:05:43.8432
G1641290  07:40:42  01:04:30.36    -33:39:15.768
G0762311  07:41:54  01:06:12.2227  -30:10:41.1744
G1641121  07:43:07  01:19:41.448   -33:06:29.556
G0783834  07:44:21  01:19:47.6698  -33:04:59.9808
G0595298  07:45:32  01:23:14.8567  -32:50:28.6008
G0629787  07:55:55  00:08:34.535   -33:51:29.9196
G0725300  07:57:04  00:09:35.5241  -32:16:36.5412
G0681282  07:58:16  00:14:33.5014  -24:42:09.7452
G0820749  07:59:25  00:20:42.0396  -23:16:58.2348
G0594514  08:00:36  00:44:15.959   -28:37:56.2728
G0589660  08:01:46  00:49:42.0413  -30:17:43.1736
G0601466  08:02:55  00:50:19.1225  -30:29:07.7928
G0697151  08:04:08  01:07:21.6086  -33:22:33.3912
G0671624  08:05:20  01:07:35.9945  -33:38:16.404
G0785220  08:06:31  01:12:09.409   -32:14:32.6148
G0783779  08:07:43  01:13:07.4479  -34:00:55.4544
G0657724  08:08:56  01:22:32.7113  -29:58:57.054
G0562220  08:11:21  01:38:28.5005  -33:36:28.9836
G0238284  08:12:35  01:38:59.6544  -28:34:20.478
G0791379  08:13:48  01:50:14.1576  -28:52:18.912
G0557460  08:15:00  01:50:41.5296  -32:36:15.102
G0749262  08:56:11  03:39:42.2206  -14:34:07.4136
G0771722  08:57:23  03:42:03.3526  -17:31:15.7764

GladeID   UT(Sep03)  RA_J2000   Dec_J2000
-----------------------------------------------
G0010892  08:25:01  23:14:54.2578  -20:59:45.3408
G0706844  08:26:12  23:17:27.2242  -10:01:50.466
G0713107  08:27:23  23:18:46.3769  -10:23:57.5232
G0703575  08:28:32  23:18:52.5439  -10:15:33.5268
G0551567  08:29:43  23:21:14.1725  -21:14:09.8736
G0553140  08:30:53  23:22:00.9228  -23:30:24.6924
G0582772  08:32:04  23:22:35.2735  -13:05:38.8392
G0001180  08:33:13  23:24:06.9506  -11:51:38.6856
G0800782  08:34:22  23:29:56.6969  -12:29:05.7048
G0606247  08:35:32  23:30:23.7377  -12:04:45.5448
G0820960  08:36:45  23:32:31.3476  -24:00:18.5652
G0556216  08:37:55  23:37:06.9288  -20:27:47.0988
G0612966  08:39:04  23:40:45.9667  -20:30:31.5108
G0666486  08:40:18  23:41:52.6685  -08:38:53.7144
G0579080  08:41:32  23:45:31.3037  -20:58:49.8036
G0584703  08:42:41  23:46:03.6036  -17:18:24.4296
G0682292  08:43:50  23:47:16.6992  -15:18:23.0148
G0751781  08:45:00  23:48:54.7118  -16:32:28.2588
G1852091  08:46:09  23:48:56.88    -16:32:24.684
G0748482  08:47:18  23:54:20.9254  -17:18:21.0348
G0733653  08:48:28  23:56:47.7247  -16:30:34.5924
G0755443  08:49:37  23:58:40.525   -17:33:31.7124
G0755095  09:30:03  00:07:10.2658  -21:47:11.5008
G0559232  09:31:16  00:11:12.5945  -33:34:42.8016
G0555127  09:32:27  00:13:02.9052  -24:12:52.5024
G0587522  09:33:37  00:19:04.9488  -22:56:11.184
G0665013  09:34:48  00:19:09.3768  -24:31:23.2068
G0552516  09:35:57  00:22:38.9513  -24:07:36.9624
G0823492  09:37:09  00:31:49.3798  -26:43:13.926
G0740509  09:38:18  00:36:27.3996  -27:47:07.4472
G0708432  09:39:27  00:53:54.0602  -31:05:43.8432
G1641290  09:40:41  01:04:30.36    -33:39:15.768
G0762311  09:41:50  01:06:12.2227  -30:10:41.1744
G1641121  09:43:01  01:19:41.448   -33:06:29.556
G0783834  09:44:11  01:19:47.6698  -33:04:59.9808
G0595298  09:45:23  01:23:14.8567  -32:50:28.6008
G0607401  09:46:32  01:24:34.5158  -33:10:24.6432
G0779486  09:47:42  01:24:50.3083  -31:45:23.8392
G0033739  09:48:57  01:47:44.4682  -33:36:05.5152
G0650576  09:50:11  02:15:38.0998  -33:00:31.5036
G0581927  09:51:23  02:17:13.6258  -33:00:41.5152
G1155066  09:52:36  02:35:13.4573  -29:36:16.6932
G0645820  09:53:46  02:38:45.1502  -30:48:23.3496
G0744351  09:54:55  02:44:15.8779  -31:56:31.3692
G0744589  09:56:06  02:46:41.6803  -25:20:47.8284
G0599710  09:57:18  02:56:13.0517  -28:02:31.5276
G0673848  09:58:27  02:56:42.421   -27:36:44.3808
G0607507  09:59:40  03:12:05.2524  -27:06:14.5728
G0605059  10:00:50  03:12:11.1941  -23:37:44.9004
G0803398  10:01:59  03:12:18.3096  -24:37:13.5336
G0767303  10:03:08  03:14:40.4534  -28:55:56.406
G0675048  10:04:20  03:16:22.8038  -23:48:36.7596
G0650576  10:34:49  02:15:38.0998  -33:00:31.5036
G0581927  10:35:56  02:17:13.6258  -33:00:41.5152
G0810505  10:37:10  02:25:46.3166  -26:06:50.7168
G1645381  10:38:19  02:28:16.464   -26:07:58.116
G0621255  10:39:28  02:35:21.6732  -25:31:39.7164
G0729094  10:40:37  02:37:35.3695  -26:22:04.1196
G0645820  10:41:47  02:38:45.1502  -30:48:23.3496
G0744351  10:42:56  02:44:15.8779  -31:56:31.3692
G0744589  10:44:05  02:46:41.6803  -25:20:47.8284
G0599710  10:45:17  02:56:13.0517  -28:02:31.5276
G0673848  10:46:26  02:56:42.421   -27:36:44.3808
G0625893  10:47:40  03:00:18.1229  -23:18:22.3344
G0805372  10:48:49  03:03:07.1767  -22:12:19.8108
G0691149  10:49:58  03:05:38.9611  -24:41:51.7488
G0607507  10:51:08  03:12:05.2524  -27:06:14.5728
G0605059  10:52:18  03:12:11.1941  -23:37:44.9004
G0803398  10:53:27  03:12:18.3096  -24:37:13.5336
G0642006  10:54:36  03:13:23.5886  -24:52:15.6216
G0675048  10:55:48  03:16:22.8038  -23:48:36.7596
G0699701  10:56:59  03:18:03.3581  -29:37:59.34
G0821941  10:58:08  03:20:51.7558  -30:47:19.1436
G0708674  10:59:18  03:23:17.8536  -27:39:21.1392
G0552792  11:00:29  03:25:27.6353  -22:29:25.9224
G0738507  11:01:38  03:25:44.6146  -26:23:17.1924
G0271141  11:02:52  03:27:20.8512  -13:44:54.3336
G0823848  11:04:03  03:28:43.7998  -19:57:07.7976
G0031069  11:05:14  03:29:55.7556  -28:46:03.9468
G0781950  11:06:26  03:30:46.6442  -20:31:26.634
G0707270  11:07:37  03:31:20.778   -26:06:09.2628
G0818993  11:08:46  03:31:24.3055  -20:10:06.4812
G0766666  11:25:41  02:26:36.2136  -23:25:01.3908
G1155066  11:26:52  02:35:13.4573  -29:36:16.6932
G0684350  11:28:02  02:37:33.9698  -27:26:30.12
G0634799  11:29:13  02:54:12.551   -33:43:07.7484
G0677246  11:30:24  03:03:53.8303  -24:33:54.4824
G0715403  11:31:33  03:08:11.7554  -22:55:22.3824
G0656204  11:32:43  03:11:09.8849  -25:19:14.4696
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