---

bat position message for trigger 021639

--====1703273086====
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

GRB position information:
GRB_RA: 251.166d {+16h 44m 40s} (J2000),
GRB_DEC: +19.500d {+19d 30' 00"} (J2000),
GAL_COORDS: 38.01, 36.37 [deg] galactic lon,lat of the burst (or transient)
Sun angle: 46.84
Moon angle: 130.61

MET of BAT trigger is 724922794.78 using SOD of 26762.19

E(B-V) report for trigger 021639 using FOM Will_Observe of (251.350,+19.500)
Reference is GCN_Notice_Fri_22_Dec_23_19:23:51_UT
E(B-V) = 0.084

Bandpass A_lambda
(microns) (mag)
U (0.34) 0.457
B (0.44) 0.363
V (0.54) 0.279
R (0.65) 0.225
I (0.81) 0.163

# Region file format: DS9 version 3.0
# Region file produced by swift_page.pl vrs. 2023-11-06 fem
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(251.350,+19.500,1079.4")

---

xrt position message for trigger 021639

E(B-V) report for trigger 021639 using XRT Position of (251.24746,19.62083)
Reference is GCN_Circulars-35421-Sat,_23_Dec_2023_12:50:17_+0000
E(B-V) = 0.077

Bandpass A_lambda
(microns) (mag)
U (0.34) 0.418
B (0.44) 0.332
V (0.54) 0.255
R (0.65) 0.206
I (0.81) 0.149

--====1703336227====
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
# Region file format: DS9 version 3.0
# file produced by rerun_uvot_tdrss.pl on 231223d12h57m07sUT
global color=green font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(251.24746,19.62083,3.30")