GRB 210213***A***: Swift-BAT refined analysis
 
<somebody goes first>
<add the BA alphabetically>
S. D. Barthelmy (GSFC), 
J. R. Cummings (CPI),
H. A. Krimm (NSF),
S. Laha (GSFC/UMBC),
A. Y. Lien (GSFC/UMBC),
C. B. Markwardt (GSFC),
D. M. Palmer (LANL),
T. Sakamoto (AGU),
M. Stamatikos (OSU),
T. N. Ukwatta (LANL)
(i.e. the Swift-BAT team):
 
Using the data set from T-239 to T+963 sec from the recent telemetry downlink,
we report further analysis of BAT GRB 210213***A*** (trigger #1032350)
(NAME, et al., GCN Circ. xxxx).  The BAT ground-calculated position is
RA, Dec = 277.653, -6.754 deg which is 
   RA(J2000)  =  18h 30m 36.7s 
   Dec(J2000) = -06d 45' 15.4" 
with an uncertainty of 1.7 arcmin, (radius, sys+stat, 90% containment).
The partial coding was 100%.
 
[Description about the mask-weighted light curve]
T90 (15-350 keV) is 0.03 +- 0.01 sec (estimated error including systematics).
 
The time-averaged spectrum from T+0.00 to T+0.03 sec fit by a simple
power-law model shows the power law index of 3.08 +- 0.22 (chi squared 60.02 for 57 d.o.f.).
The fluence in the 15-150 keV band is 1.9 +- 0.3 x 10^-08 erg/cm2.
The 1-sec peak photon flux measured from T-0.48 sec in the 15-150 keV band
is 0.6 +- 0.2 ph/cm2/sec.
 
A single blackbody fit to the time-averaged spectrum shows the blackbody
temperature of 7.26 +- 0.76 keV (chi squared 0.00 for 57 d.o.f.).
A thermal bremsstrahlung model fit shows the temperature of 22.52 +- 3.78 keV
(chi squared 0.00 for 57 d.o.f.).  A double blackbody fit shows the lower temperature
of 1.92 +4.00 keV and the higher temperature of 7.62 -3.35 keV
(chi squared 0.00 for 0 d.o.f.).  All the quoted errors are at the 90% confidence level. 
 
The results of the batgrbproduct analysis are available at
http://gcn.gsfc.nasa.gov/notices_s/1032350/BA/