| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB200224212 |
|
| T0 |
5:05:07.294 UTC |
Fermi_GBM |
| ra |
177.9000° |
Fermi_GBM |
| decl |
-28.8700° |
Fermi_GBM |
| pos_error |
4.03e+00° |
Fermi_GBM |
| T90 |
299.525 s |
Fermi_GBM |
| T90_error |
2.862 s |
Fermi_GBM |
| T90_start |
5:05:07.294 UTC |
Fermi_GBM |
| fluence |
3.68e-05 erg/cm² |
Fermi_GBM |
| fluence_error |
5.78e-08 erg/cm² |
Fermi_GBM |
| T100 |
299.525 s |
|
| GBM_located |
True |
|
| mjd |
58903.211889976854 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB200224212 |
| trigger_name |
bn200224212 |
| ra |
177.9000° |
| decl |
-28.8700° |
| pos_error |
4.03e+00° |
| datum |
2020-02-24 |
| t_trigger |
5:05:49.279 UTC |
| T90 |
299.525 s |
| T90_error |
2.862 s |
| T90_start |
5:05:07.294 UTC |
| fluence |
3.68e-05 erg/cm² |
| fluence_error |
5.78e-08 erg/cm² |
| flux_1024 |
7.73e+00 erg/cm²/s |
| flux_1024_error |
2.89e-01 erg/cm²/s |
| flux_1024_time |
2.14e+02 erg/cm²/s |
| flux_64 |
1.10e+01 erg/cm²/s |
| flux_64_error |
1.35e+00 erg/cm²/s |
| GCN 27174 table |
|---|
| GRB_name |
GRB200224B |
| GCN_number |
27174 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
5:05:49 UTC |
| ra |
177.9000° |
| decl |
-28.9000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 27174
SUBJECT: GRB 200224B: Fermi GBM Final Real-time Localization
DATE: 20/02/24 05:16:06 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely LONG GRB
At 05:05:49 UT on 24 Feb 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200224A (trigger 604213554.278888 / 200224212).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 177.9, Dec = -28.9 (J2000 degrees, equivalent to J2000 11h 51m, -28d 53'), with a statistical uncertainty of 3.1 degrees.
The angle from the Fermi LAT boresight is 23.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200224212/quicklook/glg_skymap_all_bn200224212.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200224212/quicklook/glg_healpix_all_bn200224212.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200224212/quicklook/glg_lc_medres34_bn200224212.gif
[GCN OPS NOTE(24feb20): This is the third Circular in the sequence of 8 circulars
which were all labeled A because of the sequence assigner being offline.
This circular was orginally, incorrectly labelled A, but the true letter identity is B.]
|
| GCN 27181 table |
|---|
| GRB_name |
GRB200224B |
| GCN_number |
27181 |
| Detection_method |
Fermi GBM Other |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 27181
SUBJECT: Correction in name: GRB 200224B and GRB 200224C (not GRB 200224A)
DATE: 20/02/24 21:32:30 GMT
FROM: Stephen Lesage at Fermi-GBM Team
S. Lesage (UAH) reports on behalf of the Fermi GBM Team:
“The Fermi Gamma-ray Burst Monitor (GBM) triggers 604213554/200224212
at 05:05:49 UT and 604231129/200224416 at 09:58:44 on 24 Feb 2020,
originally named GRB 200224A in GCN 27174 and GCN 27178, should be
GRB 200224B and GRB 200224C respectively.
We apologize for any confusion caused."
|
| GCN 27215 table |
|---|
| GRB_name |
GRB200224B |
| GCN_number |
27215 |
| Detection_method |
Optical |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 27215
SUBJECT: GRB 200224B: DDOTI/OAN optical observations report
DATE: 20/02/26 00:30:12 GMT
FROM: Emma Margarita Pereyra Talamantes at IA-UNAM Ensenada
Margarita Pereyra (UNAM), Nat Butler (ASU), Alan M. Watson (UNAM),
Eleonora Troja (GSFC/UMD), Simone Dichiara (GSFC/UMD), Rosa L. Becerra
(UNAM), William H. Lee (UNAM), Diego Gonzalez (UNAM), Alexander Kutyrev
(GSFC/UMD), and Tanner Wolfram (ASU), report:
We observed the field of GRB 200224B detected by the Fermi Gamma-ray Burst
Monitor (GCN 27174, Fermi trigger 604213554), with the DDOTI/OAN wide-field
imager at the Observatorio Astronómico Nacional on Sierra San Pedro Mártir (
http://ddoti.astroscu.unam.mx) from 2020-02-24 06:47 to 2020-02-24 12:16
UTC (1.68 to 7.16 hours after the event).
We observed a region of 13.6 degrees in RA by 20.4 degrees in declination,
with a 2 x 2 grid, centered on the Fermi GBM Final Position +11:51:36
-28:52:11 J2000. This region contains about 277 square degrees. We obtained
2040 to 2520 seconds exposure across the region. We calibrated our images
against the APASS catalog. Our 10-sigma limiting magnitude is around w =
19.45.
Comparing to the USNO-B1, DSS DR2 and Pan-STARRS DR1 catalogs, we do not
detect any uncataloged source with significant fading within the 90%
probability radius of 6.3 degrees.
We thank the staff of the Observatorio Astronómico Nacional in San Pedro
Mártir.
--
*Dr. Margarita Pereyra *
*FFTF, Schlumberger Foundation Alumnae*
----------------------------------------------------------------------------------------------------------------
*Catedrático Conacyt*
*Instituto de AstronomÃa de la UNAM,*
*Km. 107 Carretera Tijua**na-Ensenada, *
*Ensenada Baja California, México. C.P. 22860*
Oficina: 405
Skype: margarita-pereyra
|