[X-ray-star:953] V4641 Sgr

[maxiweb at maxi.riken.jp]

V4641 Sgr in outburst (H. Negoro, M. Nakajima).

=====================
MAXI transient alert
2024-09-06 05:54:21 UT
=====================

[Ground Trigger ID]
ID          :  0559176500

[Count Weighted Position]
RA,Dec: (274.601, -25.796)
Galac.: (  6.334,  -4.790)
Eclip.: (274.145,  -2.423)

[Triggered Criteria]
S  :  4d

[Highest Significance]
DPTC  : 1409637216
UT    : 2024/09/06 05:54:21
on    : 4d (S-band)
sigma : -6.0

[Observed flux]
S :    -90 +-    15 mCrab
L :    -67 +-    21 mCrab
M :   -128 +-    26 mCrab
H :    -23 +-    81 mCrab

nearby(r<5deg) object
=====================
dist  flux  (RA, Dec)        name
[deg][mCrab]  [deg]
=====================
0.44     22.0 (274.84, -25.41)  V4641 Sgr,SAX J1819.3-2525
0.69  unknown (274.34, -25.14)  IGR J18173-2509
1.26  unknown (274.60, -24.54)  XTE J1818-245
1.35  unknown (274.18, -24.50)  fermi-#746519641!GCN
1.67     -1.9 (276.12, -24.85)  AX J1824.5-2451
1.67     -1.9 (276.14, -24.87)  M 28,IGR J18245-2452
1.76      3.7 (272.69, -26.15)  SAX J1810.8-2609,V4722 Sgr
2.51      4.0 (277.24, -25.03)  MAXI J1828-249
2.59  unknown (273.22, -23.53)  PSR J1809-2332,0FGL J1809.5-2331
2.88  unknown (271.71, -24.58)  2S 1803-245,SAXWFC J1806.9-2434.7
3.21     90.3 (277.37, -23.80)  GS 1826-238,V4634 Sgr
3.27  unknown (272.59, -23.09)  V5588 Sgr
3.72      9.3 (273.12, -22.33)  MAXI J1810-222
3.84  unknown (271.96, -22.80)  MAXI J1807-228
3.87  unknown (270.30, -25.74)  GRS 1758-258,1RXS J180112.6-254435
3.89  unknown (270.47, -24.71)  fermi-#747191782!GCN
3.96   1042.3 (270.28, -25.08)  GX 5-1,1RXS J180108.7-250444
4.03  unknown (271.86, -29.01)  V5585 Sgr
4.41      5.2 (271.75, -29.41)  XTE J1807-294
4.47  unknown (271.62, -22.25)  SAX J1806.5-2215
4.71    375.8 (275.92, -30.36)  NGC 6624,H 1820-303
4.88  unknown (270.25, -22.95)  SGR 1801-23,SGR1801-23
4.89  unknown (269.24, -25.11)  Swift J1756.9-2508

[Sun/Moon (RA, Dec)]
Sun :  (165.074, 6.373)
Moon:  (196.313, -8.115)
age: 2.82 day

[Latitude/Longitude]
(22.22S, 179.47W)


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

---

For more information:
 http://maxi.riken.jp/alert/novae/0559176500/0559176500.htm

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