LSXPS J203150.6+401548

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

This image is 160 pixels (=6.3′ to a side).
LSXPS J203150.6+401548 is indicated by the cross-hairs. What do the colours mean?The next nearest source is 25″ away and the nearest good/reasonable source is 4.8′ away.

Detection flag:: Reasonable, but may be affected by, or due to, stray light.
Total exposure:: 22 ks
RA (J2000):: 20^h 31^m 50.62^s=307.9609°
Dec (J2000):: +40° 15′ 48.8″=+40.2636°
Err₉₀:: 5.4′′(XRT+2MASS)
l:: +79° 13′ 13.4″=79.2204°
b:: +00° 22′ 41.7″=+0.3783°
Mean count rate: 3.5 (+10.3, -3.5) ×10^-4 ct s^-1
Galactic N_H: 1.2×10²² cm^-2
HRs: HR1=-0.10 (+0.25, -0.90)
HR2=0.68 (+0.32, -0.06)
Observed between:: and 2024-01-20 22:02
Present in:: 36 datasets (total)
9 datasets (with blind detections)
21 datasets (count-rate detections)
External catalogue matches:: 1
Search Vizier | Simbad.
LSXPS ID: 668855

Nearest neighbour

LSXPS J203148.3+401550 — 25″ away

Nearest 'OK' neighbour

— 4.8′ 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)	3.5 (+10.3, -3.5) ×10^-4	1.1 (+4.9, -1.1) ×10^-4	1.9 (+4.0, -1.9) ×10^-4	9.0 (+101.9, -9.0) ×10^-5
Peak rate (ct s^-1)	3.5 (+10.3, -3.5) ×10^-4	1.1 (+4.9, -1.1) ×10^-4	1.9 (+4.0, -1.9) ×10^-4	1.02 (+0.33, -0.28) ×10^-2
Detected?	Blind: No Retrospective: No	Blind: No Retrospective: No	Blind: No Retrospective: No	Yes
3 σ UL (ct s^-1)	< 4.19× 10^-3	< 2.08× 10^-3	< 1.99× 10^-3	N/A
Counts detected	28	4	3	21
BG counts	26.26	3.471	2.073	20.55
Corr fact	2.70	2.70	2.70	2.70
P_const,χ	0.13 (obs) 0.17 (snapshot)	0.13 (obs) 1.00 (snapshot)	0.13 (obs) 1.00 (snapshot)	0.13 (obs) 2.59×10^-4 (snapshot)