{
  "bibcode": "2010GCN.11338....1D",
  "body": "M. De Pasquale (MSSL-UCL) and J. Cannizzo (GSFC)\nreport on behalf of the Swift/UVOT team:\n\nThe Swift/UVOT began settled observations of the field of GRB 101011A\n85s after the BAT trigger (Cannizzo et al., GCN Circ. 11331).\nSumming up white band exposures up to 1374s after the trigger, including\nthe finding chart, we find a strong indication (2.9 sigma level) of an\nuncatalogued source at\n\n���������� RA = 03h 13m 10.77s, Dec = -65d 58m 54.0s (J2000)\n���������� RA = 48.29487, Dec = -65.98167 (J2000)\n\nwith an error of 1.1 arcseconds. This refined position is within 0.5\narcseconds from the XRT refined position (Evans et al., GCN Circ. 11333)\nand supersedes the previous onegiven in Holland et al. (GCN Circ. 11334).\nIn the individual and summed UVOT exposures in other filters, no optical \nafterglow is detected.� Preliminary 3-sigma upper limits using the UVOT \nphotometric system (Poole et al. 2008, MNRAS, 383, 627) for the first \nfinding chart (FC) exposure and subsequent exposures are:\n\nFilter�������� T_start(s)�� T_stop(s)����Exp(s)����Mag\n\nwhite(FC)���������� 85��������� 235������147      >21.3\nwhite���������������85�������  1374������373���21.7 � 0 0.4\nwhite�������������4311���� ��  6627������393      >22\nv������������������627��  � ��18725�����1375      >20.8\nb������������������533�����   41918�����1055      >21.4\nu������������������297�����   41737�����2865      >22.0\nuw1��������������� 577������  47696�����2595      >21.7\num2��������������� 652�����   46017�����2996      >21.7\nuw2��������������� 603������  17812����� 376      >21.5\n\n\nThe values quoted above are not corrected for the Galactic extinction\ndue to the reddening of E(B-V) = 0.03 in the direction of the burst\n(Schlegel et al. 1998).",
  "circularId": 11338,
  "createdOn": 1286892529000,
  "email": "mdp@mssl.ucl.ac.uk",
  "subject": "GRB 101011A: Swift/UVOT observations",
  "submitter": "Massimiliano de Pasquale at MSSL-UCL  <mdp@mssl.ucl.ac.uk>",
  "eventId": "GRB 101011A"
}