LSXPS J023959.8+612145

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

This image is 160 pixels (=6.3′ to a side).
LSXPS J023959.8+612145 is indicated by the cross-hairs. What do the colours mean?The next nearest source is 46″ away and the nearest good/reasonable source is 50″ away.

Detection flag:: Good
Total exposure:: 797 ks
RA (J2000):: 02^h 39^m 59.87^s=39.9995°
Dec (J2000):: +61° 21′ 45.1″=+61.3625°
Err₉₀:: 3.7′′(XRT+2MASS)
l:: +135° 33′ 46.5″=135.5629°
b:: +01° 10′ 54.9″=+1.1819°
Mean count rate: 2.8 (+52.9, -2.8) ×10^-6 ct s^-1
Galactic N_H: 8.9×10²¹ cm^-2
HRs: HR1=-0.48 (+0.15, -0.52)
HR2=0.842 (+0.158, -0.048)
Observed between:: and 2025-09-06 10:45
Present in:: 442 datasets (total)
7 datasets (with blind detections)
7 datasets (count-rate detections)
External catalogue matches:: 1
Search Vizier | Simbad.
LSXPS ID: 704236

Nearest neighbour

LSXPS J024003.1+612105 — 46″ away

Nearest 'OK' neighbour

LSXPS J024001.4+612234 — 50″ 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)	2.8 (+52.9, -2.8) ×10^-6	0.00 (+1.25, -0.00) ×10^-5	0.00 (+8.82, -0.00) ×10^-6	1.1 (±0.4) ×10^-4
Peak rate (ct s^-1)	4 (±3) ×10^-5	0.00 (+1.25, -0.00) ×10^-5	0.00 (+8.82, -0.00) ×10^-6	3.3 (+3.1, -1.9) ×10^-3
Detected?	Yes	Blind: No Retrospective: No	Blind: No Retrospective: No	Yes
3 σ UL (ct s^-1)	N/A	< 5.57× 10^-5	< 4.14× 10^-5	N/A
Counts detected	204	51	29	124
BG counts	203.2	72.27	51.90	95.12
Corr fact	2.53	2.53	2.53	2.53
P_const,χ	0.24 (obs) 0.94 (snapshot)	0.24 (obs) 1.00 (snapshot)	0.24 (obs) <10^-16 (snapshot)	0.24 (obs) 0.66 (snapshot)