GRB 170222A: Swift observation summary

Mission:	IPN
GRB RA:	292.956°
GRB Dec:	+28.211°
GRB Err:	9.4 arcmin
T0:	2017-02-22 05:00:40 UT
Galactic:	62.45° +4.48°
Galactic N_H:	3.53× 10²¹ cm^-2
Galactic E(B-V):	0.5144699

Sun distance:	56.34°
Sun angle:	2.85 [hr](West of Sun)
Moon distance:	48.25°
Visibility of this field.
First slew:	2017-02-22 14:31:19 UT
First observation:	2017-02-22 16:03:00 UT
First analysis:	UT

About tiled field analysis.

So far 2 fields have been scheduled for observations. Data are available and processed for 3 of these. The list gives the exposure time used in source detection. If any individual sources were selected for follow-up observations, the source detection is not repeated for the follow up observations and the table below is not updated.

20741 — 1.8 ks of cleaned data taken between 2017-02-22 14:22:05 and 2017-02-22 15:49:00
20742 — 1.8 ks of cleaned data taken between 2017-02-22 16:03:46 and 2017-02-22 17:28:50
20743 — 1.8 ks of cleaned data taken between 2017-02-22 18:49:09 and 2017-02-22 19:21:41

Probable afterglow details

A source was found which matches the afterglow criteria.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from IPN pos	Exposure	Notes	Vizier
3 [details]	19h 32m 05.85s293.02439°	+28° 16′ 02.9″28.26746°	3.1′′	Good	5.0′	1.8 ks	The source is 3.1-σ above the RASS limit. This source may be affected by optical loading Matches SIMBAD source: CCDM J19321+2816BC, 2.4″ away.
Mean XRT rate: 8.0 (+2.8, -2.3) ×10^-3 ct s^-1 Peak XRT rate: 8.0 (+2.8, -2.3) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 1.02 (+0.36, -0.29) ×10^-11 erg cm^-1s^-1 Peak XRT flux: 1.02 (+0.36, -0.29) ×10^-11 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position Expected serendipitous sources: ~0.6 [What is this?] Note: this is extragalactic sources only, whereas the GRB trigger is at b=4.48°

¹ Radius, 90% confidence.
² Indicates how likely the source is to be real. See the 1SXPS documentation.
^* The position was enhanced using astrometry derived from the Swift UVOT.
^† The position was astrometrically corrected using the XRT sources and the 2MASS catalogue.

Find an upper limit.

Sources found so far

So far 3 sources have been found in the XRT data. 2 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from IPN pos	Exposure	Notes
1 [details]	19h 31m 48.70s292.95293°	+28° 02′ 46.1″28.04614°	5.0′′	Good	9.9′	3.6 ks	Matches SIMBAD source: NVSS J193148+280248, 6.8″ away.
Mean XRT rate: 1.01 (+0.21, -0.20) ×10^-2 ct s^-1 Peak XRT rate: 1.00 (±0.23) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 8.6 (+1.8, -1.7) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 8.5 (±2.0) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position Expected serendipitous sources: ~0.4 [What is this?] Note: this is extragalactic sources only, whereas the GRB trigger is at b=4.48°
2 [details]	19h 30m 45.43s292.68930°	+27° 58′ 06.3″27.96842°	5.7′′	Good	20.3′	742 s	This source may be affected by optical loading
Mean XRT rate: 2.4 (+0.9, -0.7) ×10^-2 ct s^-1 Peak XRT rate: 2.4 (+0.9, -0.7) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate) Products: Light curve \| Spectrum Expected serendipitous sources: ~0.1 [What is this?] Note: this is extragalactic sources only, whereas the GRB trigger is at b=4.48°
3 [details]	19h 32m 05.85s293.02439°	+28° 16′ 02.9″28.26746°	3.1′′	Good	5.0′	1.8 ks	The source is 3.1-σ above the RASS limit. This source may be affected by optical loading Matches SIMBAD source: CCDM J19321+2816BC, 2.4″ away.
Mean XRT rate: 8.0 (+2.8, -2.3) ×10^-3 ct s^-1 Peak XRT rate: 8.0 (+2.8, -2.3) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 1.02 (+0.36, -0.29) ×10^-11 erg cm^-1s^-1 Peak XRT flux: 1.02 (+0.36, -0.29) ×10^-11 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position Expected serendipitous sources: ~0.6 [What is this?] Note: this is extragalactic sources only, whereas the GRB trigger is at b=4.48°

Image

Select image style: Draggable PNG | JS9.

Magnify image and make scrollable?

FITS image.

Exposure map

Magnify exposure map and make scrollable?

FITS exposure map.