LSXPS J202758.5+411113

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

This image is 160 pixels (=6.3′ to a side).
LSXPS J202758.5+411113 is indicated by the cross-hairs. What do the colours mean?The next nearest source is 38″ away and the nearest good/reasonable source is 3.0′ away.

Detection flag:: Reasonable, but may be affected by, or due to, stray light.
Total exposure:: 22 ks
RA (J2000):: 20^h 27^m 58.50^s=306.9938°
Dec (J2000):: +41° 11′ 13.4″=+41.1871°
Err₉₀:: 6.6′′(XRT+2MASS)
l:: +79° 32′ 13.6″=79.5371°
b:: +01° 30′ 50.1″=+1.5139°
Mean count rate: 0.00 (+4.00, -0.00) ×10^-4 ct s^-1
Galactic N_H: 1.3×10²² cm^-2
HRs: HR1=-0.56 (+0.08, -0.44)
HR2=0.628 (+0.372, -0.009)
Observed between:: 2008-06-15 05:13 and 2025-12-28 08:23
Present in:: 22 datasets (total)
2 datasets (with blind detections)
3 datasets (count-rate detections)
External catalogue matches:: 2
Search Vizier | Simbad.
LSXPS ID: 1204235

Nearest neighbour

LSXPS J202759.9+411148 — 38″ away

Nearest 'OK' neighbour

LSXPS J202804.7+411357 — 3.0′ 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 (+4.00, -0.00) ×10^-4	2.2 (+2.2, -1.7) ×10^-4	0.00 (+1.49, -0.00) ×10^-4	0.00 (+3.39, -0.00) ×10^-4
Peak rate (ct s^-1)	0.00 (+4.00, -0.00) ×10^-4	2.2 (+2.2, -1.7) ×10^-4	0.00 (+1.49, -0.00) ×10^-4	1.3 (+0.4, -0.3) ×10^-2
Detected?	Blind: No Retrospective: No	Blind: No Retrospective: No	Blind: No Retrospective: No	Yes
3 σ UL (ct s^-1)	< 1.48× 10^-3	< 1.12× 10^-3	< 6.57× 10^-4	N/A
Counts detected	29	6	2	21
BG counts	32.92	3.436	3.826	24.88
Corr fact	1.95	1.95	1.95	1.95
P_const,χ	<10^-16 (obs) 0.47 (snapshot)	<10^-16 (obs) 1.00 (snapshot)	<10^-16 (obs) 1.00 (snapshot)	<10^-16 (obs) 0.50 (snapshot)