NOVA ID=0857774474

XTE J1858+034

Alert Mail
[Ground Trigger ID]
ID          :  0857774474

[Count Weighted Position]
RA,Dec: (284.839,   3.856)
Galac.: ( 37.271,  -0.008)
Eclip.: (286.582,  26.445)

[Triggered Criteria]
M  :  4d

[Highest Significance]
DPTC  : 1435446602
UT    : 2025/07/01 23:11:15
on    : 4d (Med-band)
sigma : 1.3

[Observed flux]
S :     16 +-    11 mCrab ( 3-10keV)
L :     11 +-    12 mCrab ( 2- 4keV)
M :     28 +-    21 mCrab ( 4-10keV)
H :     47 +-    74 mCrab (10-20keV)

nearby(r<5deg) object
=====================
dist  flux  (RA, Dec)        name
[deg][mCrab]  [deg]
=====================
0.45      3.5 (284.69,   3.43)  XTE J1858+034
1.25      2.0 (285.90,   3.19)  4U 1901+03
1.60     -0.3 (284.18,   5.31)  XTE J1856+053
2.47      3.6 (285.42,   1.45)  XTE J1901+014
3.31     10.9 (287.96,   4.98)  SS 433,V1343 Aql
3.84  unknown (283.48,   7.45)  IGR J18539+0727
4.18  unknown (282.23,   0.58)  V603 Aql
4.38     -2.4 (284.76,   8.23)  XTE J1859+083
4.42     12.1 (287.82,   0.58)  Aql X-1,V1333 Aql
4.53      0.3 (281.41,   0.89)  GS 1843+00,b 336
4.65  unknown (283.86,   8.40)  MCC 188
4.70     10.8 (287.70,   7.60)  4U 1909+07,4U 1908+075
4.98    227.3 (279.99,   5.04)  Ser X-1,MM Ser

[Sun/Moon (RA, Dec)]
Sun :  (100.883, 23.068)
Sun dist: 152.8
Moon:  (180.190, -1.030)
age: 6.23 day

[Latitude/Longitude]
(22.09N, 15.47W)


Images
Lightcurve
lc
Image
ALL LOW (2 - 4 keV) MED (4 - 10 keV) HIGH (10 - 20 keV)
image image image image
Spectrum
spectrum
Past Variability
Nomaxitime (ut)Imagelc
StartEnd
1 804642840.191
(2025-06-30T23:53:55)
804643338.300
(2025-07-01T00:02:13)
link to img link to lc
2 804647546.501
(2025-07-01T01:12:21)
804647648.139
(2025-07-01T01:14:03)
link to img link to lc
3 804648406.584
(2025-07-01T01:26:41)
804648918.928
(2025-07-01T01:35:13)
link to img link to lc
4 804653115.681
(2025-07-01T02:45:10)
804653222.087
(2025-07-01T02:46:57)
link to img link to lc
5 804653982.808
(2025-07-01T02:59:37)
804654485.151
(2025-07-01T03:08:00)
link to img link to lc
6 804658687.359
(2025-07-01T04:18:02)
804658793.262
(2025-07-01T04:19:48)
link to img link to lc
7 804659557.093
(2025-07-01T04:32:32)
804659941.001
(2025-07-01T04:38:56)
link to img link to lc
8 804664255.697
(2025-07-01T05:50:50)
804664370.292
(2025-07-01T05:52:45)
link to img link to lc
9 804665127.420
(2025-07-01T06:05:22)
804665560.751
(2025-07-01T06:12:35)
link to img link to lc
10 804669886.520
(2025-07-01T07:24:41)
804669945.717
(2025-07-01T07:25:40)
link to img link to lc
11 804670697.784
(2025-07-01T07:38:12)
804670810.357
(2025-07-01T07:40:05)
link to img link to lc
12 804676271.781
(2025-07-01T09:11:06)
804676790.102
(2025-07-01T09:19:45)
link to img link to lc
13 804681842.347
(2025-07-01T10:43:57)
804682356.423
(2025-07-01T10:52:31)
link to img link to lc
14 804687421.699
(2025-07-01T12:16:56)
804687940.160
(2025-07-01T12:25:35)
link to img link to lc
15 804693004.677
(2025-07-01T13:49:59)
804693491.425
(2025-07-01T13:58:06)
link to img link to lc
16 804698566.957
(2025-07-01T15:22:41)
804699089.778
(2025-07-01T15:31:24)
link to img link to lc
17 804704144.929
(2025-07-01T16:55:39)
804704659.841
(2025-07-01T17:04:14)
link to img link to lc
18 804709962.435
(2025-07-01T18:32:37)
804710421.880
(2025-07-01T18:40:16)
link to img link to lc
19 804711396.706
(2025-07-01T18:56:31)
804711572.006
(2025-07-01T18:59:27)
link to img link to lc
20 804715280.046
(2025-07-01T20:01:15)
804715816.199
(2025-07-01T20:10:11)
link to img link to lc
21 804720839.169
(2025-07-01T21:33:54)
804721360.011
(2025-07-01T21:42:35)
link to img link to lc
22 804726418.693
(2025-07-01T23:06:53)
804726940.454
(2025-07-01T23:15:35)
link to img link to lc
23 804731985.183
(2025-07-02T00:39:40)
804732515.527
(2025-07-02T00:48:30)
link to img link to lc
24 804736656.667
(2025-07-02T01:57:31)
804736820.162
(2025-07-02T02:00:15)
link to img link to lc
25 804737572.297
(2025-07-02T02:12:47)
804738081.663
(2025-07-02T02:21:16)
link to img link to lc
26 804742226.355
(2025-07-02T03:30:21)
804742393.747
(2025-07-02T03:33:08)
link to img link to lc
27 804743140.177
(2025-07-02T03:45:35)
804743481.008
(2025-07-02T03:51:16)
link to img link to lc
28 804747796.181
(2025-07-02T05:03:11)
804747971.855
(2025-07-02T05:06:06)
link to img link to lc
29 804748705.879
(2025-07-02T05:18:20)
804749051.757
(2025-07-02T05:24:06)
link to img link to lc
30 804753426.550
(2025-07-02T06:37:01)
804753541.106
(2025-07-02T06:38:56)
link to img link to lc
31 804754288.383
(2025-07-02T06:51:23)
804754605.233
(2025-07-02T06:56:40)
link to img link to lc
Localization Error Box
loc error box