[X-ray-star:973] SAX J1808.4-3658

[maxiweb at maxi.riken.jp]

MAXI also detects the brightening of SAX J1808.4-3658  (see ATel 17324,
H. Negoro).

=====================
MAXI transient alert
2025-08-10 08:58:18 UT
=====================

[Ground Trigger ID]
ID          :  0897278029

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

[Triggered Criteria]
S  :  4orb, 1d, 4d
M  :  1d, 4d

[Highest Significance]
DPTC  : 1438851426
UT    : 2025/08/10 08:58:18
on    : 1d (S-band)
sigma : -3.1

[Observed flux]
S :    -50 +-    16 mCrab
L :    -52 +-    17 mCrab
M :    -90 +-    29 mCrab
H :   -268 +-    97 mCrab

nearby(r<5deg) object
=====================
dist  flux  (RA, Dec)        name
[deg][mCrab]  [deg]
=====================
0.54     10.8 (272.12, -36.98)  SAX J1808.4-3658,V4580 Sgr
2.24     -5.3 (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     19.8 (269.67, -33.81)  H 1755-338,Ginga 1755-338
3.57     30.5 (267.55, -37.05)  4U 1746-37,H 1746-370
3.66     53.7 (276.44, -37.11)  4U 1822-371,V691 CrA
3.95     15.8 (267.06, -36.13)  1A 1744-361
4.00  unknown (274.43, -33.02)  XTE J1817-330 with XTE J1814-338
4.72  unknown (268.87, -32.48)  XTE J1755-324
4.92      7.2 (267.45, -33.20)  SLX 1746-331,RX J1749.8-3312

[Sun/Moon (RA, Dec)]
Sun :  (140.088, 15.549)
Moon:  (333.458, -12.632)
age: 16.11 day

[Latitude/Longitude]
(24.08N, 104.10E)


---

For more information:
 http://maxi.riken.jp/alert/novae/0897278029/0897278029.htm

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