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Swift J211830.4+001800

Classification: Low significance

Total | Soft | Medium | Hard | Exposure

Postage stamp image of Swift J211830.4+001800

This image is 160 pixels (=6.3′ to a side).
Swift J211830.4+001800 is indicated by the cross-hairs.

Detection flag:: Good
RA (J2000):: 21^h 18^m 30.45^s=319.6269°
Dec (J2000):: +00° 18′ 00.4″=+0.3001°
Err₉₀:: 6.9′′
l:: +52° 02′ 41.6″=52.0449°
b:: -32° 01′ 38.2″=-32.0273°
LSXPS_ID:: LSXPS J211830.4+001800.
First detected:: 2025-04-04 09:19:32
Obs 00091075007
Discovery time: 2025-04-05 20:56:49
Peak rate: 6 (+6, -3) ×10^-3 (0.3 — 10 keV)
Historical upper limits: 1.23 ×10^-3 (0.3 — 10 keV; 3-σ)
(from LSXPS [10000016966]) [Show all limits].
LSXPS:: 1.23 ×10^-3 ct/sec (0.3—10 keV)
(10000016966)
XMM:
Canned: 4.84 ×10^-2 ct/sec (0.3—10 keV)
Disc spec: 4.89 ×10^-2 ct/sec (0.3—10 keV)
Full spec: Not available.
Native: 0.75 ct/sec (native, 0.2—12 keV)
Mode / filter: SLEW, pn, Medium
ROSAT:
Canned: 1.47 ×10^-2 ct/sec (0.3—2 keV)
2.95 ×10^-2 ct/sec (0.3—10 keV)
Disc spec: 1.20 ×10^-2 ct/sec (0.3—2 keV)
1.99 ×10^-2 ct/sec (0.3—10 keV)
Full spec: Not available.
Native: 3.19 ×10^-2 ct/sec (native, 0.2—2 keV)
Outburst significance: 1.34 σ
Search 5-σ radius: SIMBAD |Vizier.
XRT Team comments:: None

Light curve (0.3 — 10 keV)

GRB binning | ObsID binning | Snapshot binning.

Show plot axis controls or click to zoom [more].

Spectrum - discovery observation only

Download tar file

Discovery spectrum of Swift J211830.4+001800

N_H	1.2 (+4.71 × 10⁵, -1.2) × 10¹⁶ cm^-2
z of absorber	0
Photon index	1.31 (+1.54, -0.86)
Flux (0.3-10 keV) (Observed)	1.14 (+1.15, -0.74) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.18 (+1.26, -0.78) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	4.59 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.75 × 10^-11 erg cm^-2 ct^-1
W-stat What's this?(dof)	6.85 (5)
Spectrum exposure	4.3 ks

Data for your light curve

Swift J211830.4+001800 — binning.