NOVA ID=1077288702

GRB 260206A or XRB from 4U 0513-40

Alert Mail
[Ground Trigger ID]
ID          :  1077288702

[Count Weighted Position]
RA,Dec: ( 78.671, -40.234)
Galac.: (244.758, -34.949)
Eclip.: ( 70.767, -62.919)

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

[Highest Significance]
DPTC  : 1454402868
UT    : 2026/02/06 08:47:43
on    : 30s (S-band)
sigma : 8.4

[Observed flux]
S :    143 +-    17 mCrab ( 3-10keV)
L :     70 +-    16 mCrab ( 2- 4keV)
M :    240 +-    31 mCrab ( 4-10keV)
H :    387 +-   109 mCrab (10-20keV)

nearby(r<5deg) object
=====================
dist  flux  (RA, Dec)        name
[deg][mCrab]  [deg]
=====================
0.22      7.8 ( 78.53, -40.04)  4U 0513-40,1H 0512-401,NGC 1851
2.28  unknown ( 81.13, -38.97)  HD35650
4.11      5.0 ( 80.74, -36.46)  PKS 0521-365
4.89  unknown ( 79.35, -35.37)  L 449-1AB

[Sun/Moon (RA, Dec)]
Sun :  (319.661, -15.681)
Sun dist: 100.5
Moon:  (189.829, -7.369)
age: 18.92 day

[Latitude/Longitude]
(29.32N, 112.36E)


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 823677037.352
(2026-02-06T07:10:32)
823677508.035
(2026-02-06T07:18:23)
link to img link to lc
2 823678334.352
(2026-02-06T07:32:09)
823678654.944
(2026-02-06T07:37:29)
link to img link to lc
3 823682624.144
(2026-02-06T08:43:39)
823683083.188
(2026-02-06T08:51:18)
link to img link to lc
4 823683915.462
(2026-02-06T09:05:10)
823684112.242
(2026-02-06T09:08:27)
link to img link to lc
5 823688198.961
(2026-02-06T10:16:33)
823688664.611
(2026-02-06T10:24:19)
link to img link to lc
6 823689494.880
(2026-02-06T10:38:09)
823689633.194
(2026-02-06T10:40:28)
link to img link to lc
7 823693777.536
(2026-02-06T11:49:32)
823694245.872
(2026-02-06T11:57:20)
link to img link to lc
8 823695068.088
(2026-02-06T12:11:03)
823695214.161
(2026-02-06T12:13:29)
link to img link to lc
9 823699356.030
(2026-02-06T13:22:31)
823699824.518
(2026-02-06T13:30:19)
link to img link to lc
10 823700654.405
(2026-02-06T13:44:09)
823700793.325
(2026-02-06T13:46:28)
link to img link to lc
11 823704931.786
(2026-02-06T14:55:26)
823705398.820
(2026-02-06T15:03:13)
link to img link to lc
12 823706227.112
(2026-02-06T15:17:02)
823706313.263
(2026-02-06T15:18:28)
link to img link to lc
13 823710513.681
(2026-02-06T16:28:28)
823710976.748
(2026-02-06T16:36:11)
link to img link to lc
14 823711815.671
(2026-02-06T16:50:10)
823711873.237
(2026-02-06T16:51:08)
link to img link to lc
15 823716147.907
(2026-02-06T18:02:22)
823716557.124
(2026-02-06T18:09:12)
link to img link to lc
16 823721837.828
(2026-02-06T19:37:12)
823722138.297
(2026-02-06T19:42:13)
link to img link to lc
17 823727548.118
(2026-02-06T21:12:23)
823727718.173
(2026-02-06T21:15:13)
link to img link to lc
18 823733170.609
(2026-02-06T22:46:05)
823733299.131
(2026-02-06T22:48:14)
link to img link to lc
19 823738671.173
(2026-02-07T00:17:46)
823738876.022
(2026-02-07T00:21:11)
link to img link to lc
Localization Error Box
loc error box