LSXPS J201756.3+404218

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

This image is 160 pixels (=6.3′ to a side).
LSXPS J201756.3+404218 is indicated by the cross-hairs. What do the colours mean?The next nearest source is 36″ away and the nearest good/reasonable source is 76″ away.

Detection flag:: Good
Total exposure:: 71 ks
RA (J2000):: 20^h 17^m 56.33^s=304.4847°
Dec (J2000):: +40° 42′ 18.3″=+40.7051°
Err₉₀:: 3.0′′(XRT+2MASS)
l:: +78° 03′ 26.5″=78.0574°
b:: +02° 47′ 36.2″=+2.7934°
Mean count rate: 1.20 (+0.24, -0.22) ×10^-3 ct s^-1
Galactic N_H: 1.1×10²² cm^-2
HRs: HR1=0.54 (+0.16, -0.21)
HR2=-0.55 (+0.15, -0.14)
Observed between:: 2006-03-26 08:38 and 2025-02-24 15:37
Present in:: 27 datasets (total)
12 datasets (with blind detections)
14 datasets (count-rate detections)
External catalogue matches:: 4
Search Vizier | Simbad.
LSXPS ID: 1039797

Nearest neighbour

LSXPS J201756.6+404254 — 36″ away

Nearest 'OK' neighbour

LSXPS J201751.3+404126 — 76″ away

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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)	1.20 (+0.24, -0.22) ×10^-3	7.8 (+10.8, -7.8) ×10^-5	9.2 (+1.7, -1.6) ×10^-4	2.11 (+1.10, -0.96) ×10^-4
Peak rate (ct s^-1)	8 (+6, -4) ×10^-3	1.0 (+0.8, -0.5) ×10^-2	10 (+8, -5) ×10^-3	2.11 (+1.10, -0.96) ×10^-4
Detected?	Yes	Yes	Yes	Blind: No Retrospective: No
3 σ UL (ct s^-1)	N/A	N/A	N/A	< 5.66× 10^-4
Counts detected	131	41	67	26
BG counts	71.54	37.15	21.51	15.58
Corr fact	1.63	1.64	1.64	1.64
P_const,χ	4.27×10^-4 (obs) 9.83×10^-2 (snapshot)	4.56×10^-3 (obs) 5.51×10^-4 (snapshot)	5.66×10^-3 (obs) 0.78 (snapshot)	4.56×10^-3 (obs) 0.31 (snapshot)