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Home > GRB products > ToO GRBs > GRB 150402A
00020486
TOO
GRB 150402A: Swift observation summary
Mission: Swift/BAT
GRB RA: 173.658°
GRB Dec: +40.992°
GRB Err: 2.5 arcmin
T0: 2015-04-02 00:37:32 UT
Galactic: 166.74° +68.99°
Galactic NH : 2.23× 1020 cm-2
Galactic E(B-V): 0.02349409
About ToO field analysis .
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Sources found so far
So far 6 sources have been found in the XRT data. 1 sources match catalogued sources.
#
RA (J2000)
Dec (J2000)
Err90 1
Detection Flag2
Dist from Swift/BAT pos
Exposure
Notes
Vizier
1 [details ]
11h 34m 21.30s 173.58876°
+40° 56′ 24.5″ 40.94013°
4.7′′
Good
4.4′
4.7 ks
Mean XRT rate: 4.0 (±0.7) ×10-3 ct s-1
Peak XRT rate: 5.2 (±1.6) ×10-3 ct s-1
RASS PSPC 3-σ upper limit: 0.04 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 6.4 (±1.1) ×10-3 ct s-1
Peak XRT rate converted to PSPC: 8.2 (±2.6) ×10-3 ct s-1 Mean XRT flux: 1.43 (±0.24) ×10-13 erg cm-1 s-1
Peak XRT flux: 1.9 (±0.6) ×10-13 erg cm-1 s-1 Products: Light curve | Spectrum | Expected serendipitous sources: ~4.44×10-4 [What is this? ]
2 [details ]
11h 34m 29.21s 173.62172°
+40° 53′ 25.5″ 40.89041°
3.5′′ *
Good
6.3′
4.1 ks
A SIMBAD object matches this source's position: (Show )[VV2006] J113429.3+405327, 2.0′′ away
Mean XRT rate: 2.8 (±0.6) ×10-3 ct s-1
Peak XRT rate: 3.5 (±1.1) ×10-3 ct s-1
RASS PSPC 3-σ upper limit: 0.04 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 4.3 (±1.0) ×10-3 ct s-1
Peak XRT rate converted to PSPC: 5.3 (±1.7) ×10-3 ct s-1 Mean XRT flux: 1.06 (±0.24) ×10-13 erg cm-1 s-1
Peak XRT flux: 1.3 (±0.4) ×10-13 erg cm-1 s-1 Products: Light curve | Spectrum | Expected serendipitous sources: ~2.96×10-3 [What is this? ]
3 [details ]
11h 35m 10.62s 173.79426°
+40° 50′ 39.6″ 40.84433°
3.0′′ *
Good
10.8′
2.9 ks
Mean XRT rate: 1.1 (±0.5) ×10-3 ct s-1
Peak XRT rate: 1.5 (±0.9) ×10-3 ct s-1
RASS PSPC 3-σ upper limit: 0.04 ct s-1 (PSPC count-rate) Products: Light curve | Spectrum | Expected serendipitous sources: ~0.00×10+0 [What is this? ]
4 [details ]
11h 34m 34.01s 173.64169°
+40° 58′ 38.1″ 40.97725°
6.1′′
Reasonable
1.2′
4.6 ks
Mean XRT rate: 2.0 (±0.9) ×10-3 ct s-1
Peak XRT rate: 2.0 (±0.9) ×10-3 ct s-1
RASS PSPC 3-σ upper limit: 0.04 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 1.2 (±0.6) ×10-3 ct s-1
Peak XRT rate converted to PSPC: 1.2 (±0.6) ×10-3 ct s-1 Mean XRT flux: 1.6 (±0.7) ×10-13 erg cm-1 s-1
Peak XRT flux: 1.6 (±0.7) ×10-13 erg cm-1 s-1 Products: Light curve | Spectrum | Expected serendipitous sources: ~1.28×10-3 [What is this? ]
5 [details ]
11h 33m 49.30s 173.45543°
+40° 52′ 39.8″ 40.87771°
4.2′′ *
Good
11.5′
3.8 ks
The source is fading.
Mean XRT rate: 3.8 (±1.2) ×10-3 ct s-1
Peak XRT rate: 3.8 (±1.2) ×10-3 ct s-1
RASS PSPC 3-σ upper limit: 0.04 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 10 (±3) ×10-4 ct s-1
Peak XRT rate converted to PSPC: 10 (±3) ×10-4 ct s-1 Mean XRT flux: 2.1 (±0.7) ×10-13 erg cm-1 s-1
Peak XRT flux: 2.1 (±0.7) ×10-13 erg cm-1 s-1 Products: Light curve | Spectrum | Expected serendipitous sources: ~4.89×10-3 [What is this? ]
6 [details ]
11h 35m 33.90s 173.89125°
+40° 59′ 08.7″ 40.98574°
5.9′′
Poor
10.6′
2.3 ks
Mean XRT rate: 3.5 (±2.0) ×10-3 ct s-1
Peak XRT rate: 3.5 (±2.0) ×10-3 ct s-1
RASS PSPC 3-σ upper limit: 0.04 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 3.0 (±1.7) ×10-3 ct s-1
Peak XRT rate converted to PSPC: 3.0 (±1.7) ×10-3 ct s-1 Mean XRT flux: 1.3 (±0.8) ×10-13 erg cm-1 s-1
Peak XRT flux: 1.3 (±0.8) ×10-13 erg cm-1 s-1 Products: Light curve | Spectrum | Expected serendipitous sources: ~1.04×10-2 [What is this? ]
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.
Image
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FITS image .
Exposure map
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FITS exposure map .