[X-ray-star:79] Cir X-1

[maxiweb]

This outburst of Cir X-1 shows an extremely soft energy spectrum, and
the brightest (~ 2 Crab) one in the 2-4 keV band since MAXI began
observation. (H., Negoro)

=====================
MAXI transient alert
2011-07-10 09:52:01 UT
=====================

[Ground Trigger ID]
ID          :  5752324422

[Count Weighted Position]
RA,Dec: (230.215, -57.117)
Galac.: (322.172,   0.059)
Eclip.: (244.142, -37.195)

[Triggered Criteria]
L+M:  1s, 3s, 10s, 30s, 1scan, 4orb, 1d, 4d
M  :  1s, 3s, 10s, 30s, 1scan, 4orb, 1d, 4d
L  :  1s, 3s, 10s, 30s, 1scan, 4orb, 1d, 4d

[Highest Significance]
DPTC :  994326736
UT   :  2011/07/10 09:52:01
on   :  4orb (Low-band)

[Observed flux]
L :   1207.0 mCrab (   46.0)
M :    750.0 mCrab (   98.0)
H :     13.0 mCrab (  338.0)
( ): background flux

nearby(r<5deg) object
=====================
dist  flux  (RA, Dec)        name
[deg][mCrab]  [deg]
=====================
0.06     27.0 (230.17, -57.17)  Cir X-1,BR Cir
2.22     27.5 (228.48, -59.14)  PSR B1509-58,Cir pulsar
2.51  unknown (234.74, -57.71)  V343 Nor
3.15  unknown (235.82, -56.41)  MAXI J1543-564
4.17     29.9 (237.75, -56.48)  V381 Nor,XTE J1550-564
4.18  unknown (223.34, -55.41)  1RXS J145341.1-552146
4.33  unknown (222.85, -55.64)  2MFGC 12018,WKK 4374
4.55  unknown (223.21, -59.82)  SAX J1452.8-5949

[Sun/Moon (RA, Dec)]
Sun :  (109.141, 22.279)
Moon:  (222.461, -19.637)
age: 9.47 day

[Latitude/Longitude]
(26.94N, 124.03E)


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For more information:
 http://maxi.riken.jp/alert/novae/5752324422/5752324422.htm

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