[X-ray-star:874] SAX J1808.4-3658

[maxiweb at maxi.riken.jp]

A possible outburst from the SAX J1808.4-3658 was detected (Y. Imai)

=====================
MAXI transient alert
2022-08-19 03:18:45 UT
=====================

[Ground Trigger ID]
ID          :  9810128029

[Count Weighted Position]
RA,Dec: (271.942, -36.461)
Galac.: (355.787,  -7.792)
Eclip.: (271.603, -13.033)

[Triggered Criteria]
S  :  1d
M  :  1d

[Highest Significance]
DPTC  : 1344914338
UT    : 2022/08/19 03:18:45
on    : 1d (S-band)
sigma : -2.1

[Observed flux]
S :    -21 +-    10 mCrab
L :     -3 +-    12 mCrab
M :    -29 +-    18 mCrab
H :   -152 +-    79 mCrab

nearby(r<5deg) object
=====================
dist  flux  (RA, Dec)        name
[deg][mCrab]  [deg]
=====================
0.54      8.6 (272.12, -36.98)  SAX J1808.4-3658,V4580 Sgr
2.24      1.4 (271.04, -34.35)  1RXS J180408.9-342058
2.69  unknown (271.78, -33.78)  V5583 Sgr
2.94  unknown (273.41, -33.77)  XTE J1814-338 with XTE J1817-330
3.07  unknown (273.99, -33.89)  IGR J18159-3353
3.24     16.0 (269.67, -33.81)  H 1755-338,Ginga 1755-338
3.57     37.1 (267.55, -37.05)  4U 1746-37,H 1746-370
3.66     20.1 (276.44, -37.11)  4U 1822-371,V691 CrA
3.95  unknown (267.06, -36.13)  1A 1744-361
4.00     10.3 (274.43, -33.02)  XTE J1817-330 with XTE J1814-338
4.72  unknown (268.87, -32.48)  XTE J1755-324
4.92      3.9 (267.45, -33.20)  SLX 1746-331,RX J1749.8-3312

[Sun/Moon (RA, Dec)]
Sun :  (148.095, 12.909)
Moon:  (52.685, 19.779)
age: 21.50 day

[Latitude/Longitude]
(15.12N, 175.24E)


We will report more detailed information on this event to ATel and/or GCN.

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For more information:
 http://maxi.riken.jp/alert/novae/9810128029/9810128029.htm

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