[X-ray-star:846] X-ray burst from 4U 1820-303

[maxiweb at maxi.riken.jp]

An type-I X-ray burst from 4U 1820-303.(W.Iwakiri)

=====================
MAXI transient alert
2021-11-25 23:26:05 UT
=====================

[Ground Trigger ID]
ID          :  9543899764

[Count Weighted Position]
RA,Dec: (275.920, -30.361)
Galac.: (  2.795,  -7.924)
Eclip.: (275.145,  -7.027)

[Triggered Criteria]

[Highest Significance]
DPTC  : 1321917945
UT    : 2021/11/25 23:26:05
on    : 3s (S-band)
sigma : 22.2

[Observed flux]
S :    911 +-    41 mCrab
L :    629 +-    48 mCrab
M :   1442 +-    73 mCrab
H :   1261 +-   152 mCrab

nearby(r<5deg) object
=====================
dist  flux  (RA, Dec)        name
[deg][mCrab]  [deg]
=====================
0.00    429.1 (275.92, -30.36)  NGC 6624,H 1820-303
2.94     10.3 (274.43, -33.02)  XTE J1817-330 with XTE J1814-338
3.25  unknown (276.24, -33.60)  fermi-#658764238!GCN
3.67     20.5 (278.93, -32.99)  RX J1832-33,XB 1832-330
3.74     32.6 (271.75, -29.41)  XTE J1807-294
3.77  unknown (271.86, -29.01)  V5585 Sgr
3.89  unknown (273.99, -33.89)  IGR J18159-3353
4.02  unknown (273.41, -33.77)  XTE J1814-338 with XTE J1817-330
4.49     -0.8 (270.76, -29.83)  MAXI J1803-298
4.89  unknown (271.78, -33.78)  V5583 Sgr

[Sun/Moon (RA, Dec)]
Sun :  (241.603, -20.882)
Moon:  (139.779, 20.998)
age: 21.12 day

[Latitude/Longitude]
(15.36S, 166.45W)


---

For more information:
 http://maxi.riken.jp/alert/novae/9543899764/9543899764.htm

About MAXI data:
 http://maxi.riken.jp/