Today 10-03-16 QTY 4 GRBs Detected Swift Satellite Mission

On top of the CME activity, there were 4 GRB detections reported on SWIFT.

GRB Number	Univ Time	UVOT Magnitude
100316D	12:44:50	TBD
100316C	08:57:59	TBD
100316B	08:01:36	V-18.28
100316A	02:23:00	V=20.48

Can you translate for us people not familiar with that chart, please?

TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Wed 17 Mar 10 04:45:13 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 416226, Seg_Num: 0
GRB_RA: 175.059d {+11h 40m 14s} (J2000),
175.184d {+11h 40m 44s} (current),
174.445d {+11h 37m 47s} (1950)
GRB_DEC: -46.314d {-46d 18' 50"} (J2000),
-46.371d {-46d 22' 14"} (current),
-46.037d {-46d 02' 12"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 0 [cnts] Image_Peak=1512 [image_cnts]
TRIGGER_DUR: 64.000 [sec]
TRIGGER_INDEX: 20000 E_range: 15-50 keV
BKG_INTEN: 0 [cnts]
BKG_TIME: 0.00 SOD {00:00:00.00} UT
BKG_DUR: 0 [sec]
GRB_DATE: 15272 TJD; 76 DOY; 10/03/17
GRB_TIME: 17034.37 SOD {04:43:54.37} UT
GRB_PHI: -177.75 [deg]
GRB_THETA: 8.11 [deg]
SOLN_STATUS: 0x13
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 7.00 [sigma]
MERIT_PARAMS: +1 +0 +0 +6 +1 -3 +0 +0 +67 +0
SUN_POSTN: 356.77d {+23h 47m 06s} -1.40d {-01d 23' 50"}
SUN_DIST: 132.21 [deg] Sun_angle= -11.9

---

(East of Sun)
MOON_POSTN: 8.53d {+00h 34m 08s} +9.11d {+09d 06' 45"}
MOON_DIST: 141.03 [deg]
MOON_ILLUM: 2 [%]
GAL_COORDS: 290.32, 14.81 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 198.71,-43.40 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS: SWIFT-BAT GRB Coordinates.
COMMENTS: This is an image trigger. (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)
COMMENTS: A point_source was found.
COMMENTS: This does not match any source in the on-board catalog.
COMMENTS: This does not match any source in the ground catalog.
COMMENTS: This is a GRB.
COMMENTS: This trigger occurred at longitude,latitude = 224.43,-5.37 [deg]. [url= http://www.mpe.mpg.de/~jcg/grb100317A.html] http://www.mpe.mpg.de/~jcg/grb100317A.html[/url]

Hi Rose,

The GRB acronym stands for Gamma Ray Burst. They are highly energetic particles that penetrate into earth's atmosphere and core. Some people guess that they might cause effects here on earth, like earthquakes but the actual cause-effect relationship is not precisely known.

Wikipedia says:
"Bursts can last from milliseconds to nearly an hour, although a typical burst lasts a few seconds. The initial burst is usually followed by a longer-lived "afterglow" emitting at longer wavelengths (X-ray, ultraviolet, optical, infrared and radio).

Most observed GRBs are believed to be a narrow beam of intense radiation released during a supernova event, as a rapidly rotating, high-mass star collapses to form a black hole. A subclass of GRBs (the "short" bursts) appear to originate from a different process, possibly the merger of binary neutron stars."

On tuesday, there were 4 GRBs in one day detected by the NASA SWIFT monitors, which is a large number for one day's reporting. The first column is the gamma ray burst number which is composed of the yr-mth-day with a letter (A,B...) to indicate that more than one burst was recorded. The second column contains the Universal Time when the burst was Detected by the NASA monitors (so you'd add 8 hours if you are in CA). The UVOT magnitude is some measure of radiation, but when I looked at the chart to pick up the data, that value had not been calculated for the last two readings.

sherryjeffries wrote:TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Wed 17 Mar 10 04:45:13 UT
NOTICE_TYPE: Swift-BAT GRB Position

Dear Sherrie:

Thank you so much for this! I was having fits missing you and mg.

Yes, I know! It is hard to find time to post on both sites. I try to check in here at least a couple times a week. I like all the sites, but earthboppin is just easier for me because it is the fastest and I don't have much time. I'm thinking of you all!