{
  "bibcode": "2013GCN.14590....1S",
  "body": "David M. Smith (UC Santa Cruz), Andre Csillaghy (Fachhochschule Nordwestschweiz),\nKevin Hurley (UC Berkeley), Hugh Hudson (UC Berkeley, U. Glasgow), Steven Boggs\n(UC Berkeley), and Andrew Inglis (NASA Goddard/CUA) report:\n\nThe Reuven Ramaty High-Energy Solar Spectroscopic Imager (RHESSI)\nsatellite observed the prompt emission of GRB 130427A (Maselli et\nal. , GCN 14448), with usable data over the approximate range 50 keV to\n15 MeV, and a time resolution of 1us on each photon recorded.\nAbsolute timing accuracy is ~1ms.  Since the GRB was 122 degrees from\nthe Sun, the photons entered through the rear of the spectrometer.\n\nThe lightcurve of the main outburst in three energy bands is shown binned to 25ms \nresolution at:\nhttp://scipp.ucsc.edu/~dsmith/rhessi/grb/130427a_longplot.gif\nThe black, red, and orange lightcurves represent the energy ranges 50 keV to 1 MeV,\n1-5 MeV, and 5-15 MeV, respectively.  \n\nThe lightcurve of the slower, fainter peak of the GRB, about two minutes after\nthe primary outburst, is shown here:\nhttp://scipp.ucsc.edu/~dsmith/rhessi/grb/130427a_lateplot.gif\nThe black, red, and orange lightcurves in this case represent the energy ranges \n50-200 keV, 200-500 keV, and 500 keV to 1 MeV, respectively.\n\nRHESSI data are publicly available.  We invite anyone intending to use the RHESSI\ndata to consult with us about instrumental issues associated with the observation.",
  "circularId": 14590,
  "createdOn": 1367861864000,
  "email": "khurley@ssl.berkeley.edu",
  "subject": "GRB 130427A: RHESSI observations",
  "submitter": "Kevin Hurley at UCBerkeley/SSL  <khurley@ssl.berkeley.edu>",
  "eventId": "GRB 130427A"
}