SVOM_FIELD00017
SVOM
17
/SVOM
This is a confirmed GRB (GRB 250530A), the afterglow is source 1 -- please see the GRB results at https://www.swift.ac.uk/xrt_products/00019839 for updated analysis
.Mission: | SVOM/ECLAIRs |
---|---|
SVOM RA: | 186.643° |
SVOM Dec: | -2.574° |
SVOM Err: | 8.8 arcmin |
T0: | 2025-05-30 06:31:54 UT |
Galactic: | 290.55° +59.70° |
Galactic NH: | 2.51× 1020 cm-2 |
Sun distance: | 118.36° |
---|---|
Sun angle: | 7.97 [hr] (East of Sun) |
Moon distance: | 75.42° |
Visibility of this field. | |
First slew: | 2025-05-30 06:48:30 UT |
First observation: | 2025-05-30 06:47:59 UT |
First analysis: | 2025-05-30 08:41:29 UT |
So far 1 fields have been scheduled for observations. Data are available and processed for 1 of these.
1 fields were processed but not included in the analysis. This is because, after standard processing and the removal of times contaminated by light reflected off the bright Earth, there was too little data (<100 s) for source detection to be performed.
1 sources were found which matches the afterglow criteria.
# | RA (J2000) | Dec (J2000) | Err901 | Detection Flag2 |
Rank3 | Exposure | Notes | Vizier | |
---|---|---|---|---|---|---|---|---|---|
1 [details] |
12h 26m 50.53s | -02° 34′ 33.4″ | 2.4′′ * | Good | 2 (O) | 4.1′ | 9.8 ks | The source is fading with 4.6-σ significance. The source is 4.5-σ above the RASS limit. |
![]() |
1 Radius, 90% confidence.
2 Indicates how likely the source is to be real. See the LSXPS documentation.
3 T=Transient Source, O=Outbursting known source, U=Uncatalogued X-ray source, K=Known X-ray source.
* The position was enhanced using astrometry derived from the Swift UVOT.
† The position was astrometrically corrected using the XRT sources and the 2MASS catalogue.
So far 4 sources have been found in the XRT data. 1 sources match catalogued sources.
# | RA (J2000) | Dec (J2000) | Err901 | Detection Flag2 |
Rank3 | Dist from SVOM/ECLAIRs pos |
Exposure | Notes | Vizier |
---|---|---|---|---|---|---|---|---|---|
1 [details] |
12h 26m 50.53s | -02° 34′ 33.4″ | 2.4′′ * | Good | 2 (O) | 4.1′ | 9.8 ks | The source is fading with 4.6-σ significance. The source is 4.5-σ above the RASS limit. |
![]() |
2 [details] |
12h 26m 02.13s | -02° 33′ 44.5″ | 4.0′′ * | Good | 3 (U) | 8.1′ | 9.8 ks | ![]() |
|
3 [details] |
12h 27m 12.30s | -02° 38′ 02.0″ | 6.7′′ | Poor | 3 (U) | 10.1′ | 9.8 ks | Matches SIMBAD source: [VV2006] J122712.4-023803, 2.5″ away. | ![]() |
4 [details] |
12h 26m 26.15s | -02° 23′ 23.2″ | 7.5′′ | Good | 3 (U) | 11.2′ | 9.8 ks | ![]() |
1 Radius, 90% confidence.
2 Indicates how likely the source is to be real. See the LSXPS documentation.
3 T=Transient Source, O=Outbursting known source, U=Uncatalogued X-ray source, K=Known X-ray source.
* The position was enhanced using astrometry derived from the Swift UVOT.
† The position was astrometrically corrected using the XRT sources and the 2MASS catalogue.
Select image style: Draggable PNG | JS9.