{
  "bibcode": "2015GCN.17589....1G",
  "body": "V. V. Golovnya, V. M. Andruk (Main Astro Obs., Kyiv)\nreport: \n   We have undertaken the review of the sky area of GRB 150220A \n(P.A. Evans, GCN Circ. 17501) on astronegatives, collected in Ukrainian\nplate archive (1976-1996). All the plates with the possible object \nappearance are digitized using Microtek ScanMaker 9800XL TMA and Epson\nExpression 10000XL flatbed scanner and the images have been placed \ninto Golosiiv Plate Archive database DBGPA with open access to them.\n\n2 objects have been found on the plate GUA040C002183 (EPOCH=1993.2192).\nScanning and processing methods were described in [1-3]. The coordinates\nand B magnitudes were obtained in the system of TYCHO-2 catalog: \n\nN of Obj.  MagTyc    RA(J2000)      Dec(J2000) \n1 (26646)  16.17   09h02m12.961s  -01d40���24.457���\n2 (26663)  15.96   09 02 13.504   -01 39 51.118 \n        Rms RA=0.093���, rms Dec=0.099���, rms MagTyc=0.21\n\n The list of plates is given in the table:\nyyyymmdd/TimeUT-- ---Plates---- Exp. ���Mag --USNO-A2----\n19830119/20:30:49 TAS040A000485 28.0 16.4 0825-06684950\n19900323/19:14:27 GUA040C003371 12.5 15.6 0825-06686191\n19930319/19:23:16 GUA040C002183 21.8 15.7 0825-06683708\nPlates:\nGUA040C ���The plates archive identifier of DWA (D/F=400/2000,\n         M=103���/mm) of the Ukrainian NAS Main Astro obs.\n         (Marsden's number - 83) the plate number [4].\nTAS040A -the plates archive identifier of DAZ (D/F=400/3000,\n         M=68.8���/mm) of the Tashkent Astro obs.\n         (Marsden's number - 186) the plate number [4].\nExp.  - Duration of the maximum exposure (minutes).\nMag - Limited Bmag, derived in the 13 minutes area around the \nposition: RA(J2000): 09h 01m 51.6s, Dec(J2000): -01d 38��� 03���.\nUSNO-A2 - Comparison star.\n  The preview images of 3 areas together with the 13 min. of arc area\nfrom Aladin can be found in\n���http://gua.db.ukr-vo.org/img/grb/150220A/index.html���.\nThe images with full resolution are available via e-mail on demand.\n\nReferences:\n1. Andruk V.��., Butenko G.Z., Yatsenko A.I.: 2010, Kinematics and \nPhysics of Celestial Bodies, 26/3, 75-81.\n2. V.Golovnya, V.Andruk, A.Yatsenko: 2010, Journal of Physical \nStudies, 14, N2, 2902.\n3. Yatsenko A.I., Andruk V.N., Golovnia V.V., Pakuliak L.K., Ivanov \nG.A.: 2011, Kinematics and Physics of Celestial Bodies, 27/3, 49-59.\n4. L.Pakuliak: DBGPA V2.0, ���http://gua.db.ukr-vo.org���.",
  "circularId": 17589,
  "createdOn": 1426515723000,
  "email": "golov_v@ukr.net",
  "subject": "GRB 150220A, the review of the sky area in plate archives",
  "submitter": "Valentyna Golovnya at Main Astro Obs,Kyiv  <golov_v@ukr.net>",
  "eventId": "GRB 150220A"
}