LSXPS J203104.2+400027

[Spectral/flux information | Temporal information | External catalogue matches | Detections | Non-detections ]

This image is 160 pixels (=6.3′ to a side).
LSXPS J203104.2+400027 is indicated by the cross-hairs. What do the colours mean?The next nearest source is 2.0′ away and the nearest good/reasonable source is 10.2′ away.

Detection flag:: Poor, but may be affected by, or due to, stray light.
Total exposure:: 31 ks
RA (J2000):: 20^h 31^m 04.29^s=307.7679°
Dec (J2000):: +40° 00′ 27.1″=+40.0075°
Err₉₀:: 5.6′′(Star trackers)
l:: +78° 55′ 35.9″=78.9266°
b:: +00° 20′ 45.4″=+0.3459°
Mean count rate: 0.00 (+3.84, -0.00) ×10^-4 ct s^-1
Galactic N_H: 1.2×10²² cm^-2
HRs: HR1=0.0 (+1.0, -0.5)
HR2=0.639 (+0.361, +0.027)
Observed between:: and 2025-02-10 22:56
Present in:: 46 datasets (total)
3 datasets (with blind detections)
15 datasets (count-rate detections)
External catalogue matches:: 2
Search Vizier | Simbad.
LSXPS ID: 645031

Nearest neighbour

LSXPS J203114.3+400107 — 2.0′ away

Nearest 'OK' neighbour

LSXPS J203024.1+400713 — 10.2′ away

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This source is in a field with stray light; however, this should have been correctly handled.

Spectral / Flux information

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Temporal Information

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Band	Total (0.3—10 keV)	Soft (0.3—1 keV)	Medium (1—2 keV)	Hard (2—10 keV)
Mean rate (ct s^-1)	0.00 (+3.84, -0.00) ×10^-4	0.00 (+1.28, -0.00) ×10^-4	0.00 (+1.25, -0.00) ×10^-4	1.3 (+45.4, -1.3) ×10^-5
Peak rate (ct s^-1)	5.2 (+3.5, -2.9) ×10^-3	0.00 (+1.28, -0.00) ×10^-4	0.00 (+1.25, -0.00) ×10^-4	1.9 (±0.5) ×10^-3
Detected?	Yes	Blind: No Retrospective: No	Blind: No Retrospective: No	Blind: No Retrospective: No
3 σ UL (ct s^-1)	N/A	< 5.89× 10^-4	< 5.84× 10^-4	< 1.52× 10^-3
Counts detected	24	1	1	22
BG counts	27.05	2.687	2.982	21.85
Corr fact	1.48	1.48	1.48	1.48
P_const,χ	9.86×10^-4 (obs) 3.61×10^-2 (snapshot)	1.00 (obs) 1.00 (snapshot)	1.00 (obs) 1.00 (snapshot)	1.00 (obs) 1.88×10^-2 (snapshot)