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Home > Einstein Probe follow up > EP#01709132140
EP_FIELD00022
EP
22
/EP
EP#01709132140: Swift observation summary
Mission: | Einstein Probe/WXT |
Einstein Probe RA: | 195.931° |
Einstein Probe Dec: | +24.235° |
Einstein Probe Err: | 3.1 arcmin |
T0: | 2025-03-02 01:37:56 UT |
Galactic: | 347.34° +86.00° |
Galactic NH: | 1.35× 1020 cm-2 |
Sun distance: | 144.07° |
Sun angle: | 9.79 [hr](West of Sun) |
Moon distance: | 150.04° |
Visibility of this field. |
First slew: | 2025-03-02 03:45:03 UT |
First observation: | 2025-03-02 03:44:31 UT |
First analysis: | 2025-03-02 07:17:16 UT |
- Data analysed so far:
- ObsID: 00019584001 with 1.7 ks exposure.
About tiled field analysis.
So far 1 fields have been scheduled for observations.
Data are available and processed for 1 of these.
- 19584 — 1.7 ks of cleaned data taken between 2025-03-02 03:45:01 and 2025-03-02 04:16:40
Details of afterglow candidates
1 sources were found which matches the afterglow criteria.
# |
RA (J2000) |
Dec (J2000) |
Err901 |
Detection Flag2 |
Rank3 |
Dist from Einstein Probe/WXT pos |
Exposure |
Notes |
Vizier |
1 [details] |
13h 03m 40.42s195.91841° |
+24° 14′ 03.8″24.23440° |
2.8′′ * |
Good |
2 (O) |
0.7′ |
1.7 ks |
The source is 3.6-σ above the RASS limit. |
 |
- Mean XRT rate: 0.132 (±0.010) ct s-1
- Peak XRT rate: 0.19 (±0.04) ct s-1
- RASS PSPC 3-σ upper limit: 0.04 ct s-1 (PSPC count-rate)
- Mean XRT rate converted to PSPC: 0.200 (±0.015) ct s-1
- Peak XRT rate converted to PSPC: 0.29 (±0.07) ct s-1
- Mean XRT flux: 3.54 (±0.27) ×10-12 erg cm-1s-1
- Peak XRT flux: 5.1 (±1.2) ×10-12 erg cm-1s-1
- Products: Light curve | Spectrum | Enhanced position
|
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.
Find an upper limit.
Sources found so far
So far 6 sources have been found in the XRT data. 2 sources match catalogued sources.
# |
RA (J2000) |
Dec (J2000) |
Err901 |
Detection Flag2 |
Rank3 |
Dist from Einstein Probe/WXT pos |
Exposure |
Notes |
Vizier |
1 [details] |
13h 03m 40.42s195.91841° |
+24° 14′ 03.8″24.23440° |
2.8′′ * |
Good |
2 (O) |
0.7′ |
1.7 ks |
The source is 3.6-σ above the RASS limit. |
 |
- Mean XRT rate: 0.132 (±0.010) ct s-1
- Peak XRT rate: 0.19 (±0.04) ct s-1
- RASS PSPC 3-σ upper limit: 0.04 ct s-1 (PSPC count-rate)
- Mean XRT rate converted to PSPC: 0.200 (±0.015) ct s-1
- Peak XRT rate converted to PSPC: 0.29 (±0.07) ct s-1
- Mean XRT flux: 3.54 (±0.27) ×10-12 erg cm-1s-1
- Peak XRT flux: 5.1 (±1.2) ×10-12 erg cm-1s-1
- Products: Light curve | Spectrum | Enhanced position
|
2 [details] |
13h 02m 55.46s195.73110° |
+24° 12′ 11.6″24.20322° |
4.2′′ * |
Good |
3 (U) |
11.1′ |
1.7 ks |
Matches SIMBAD source: [VV2006] J130255.4+241210, 2.3″ away. |
 |
- Mean XRT rate: 1.7 (±0.4) ×10-2 ct s-1
- Peak XRT rate: 1.7 (±0.4) ×10-2 ct s-1
- RASS PSPC 3-σ upper limit: 0.11 ct s-1 (PSPC count-rate)
- Mean XRT rate converted to PSPC: 0.023 (±0.006) ct s-1
- Peak XRT rate converted to PSPC: 0.023 (±0.006) ×10-2 ct s-1
- Mean XRT flux: 5.8 (±1.4) ×10-13 erg cm-1s-1
- Peak XRT flux: 5.8 (±1.4) ×10-13 erg cm-1s-1
- Products: Light curve | Spectrum | Enhanced position
|
3 [details] |
13h 04m 02.23s196.00931° |
+24° 16′ 40.0″24.27779° |
4.5′′ * |
Good |
3 (U) |
5.0′ |
1.7 ks |
|
 |
- Mean XRT rate: 1.2 (±0.3) ×10-2 ct s-1
- Peak XRT rate: 1.2 (±0.3) ×10-2 ct s-1
- RASS PSPC 3-σ upper limit: 0.03 ct s-1 (PSPC count-rate)
- Mean XRT rate converted to PSPC: 0.059 (±0.016) ct s-1
- Peak XRT rate converted to PSPC: 0.059 (±0.016) ×10-2 ct s-1
- Mean XRT flux: 3.2 (±0.8) ×10-13 erg cm-1s-1
- Peak XRT flux: 3.2 (±0.8) ×10-13 erg cm-1s-1
- Products: Light curve | Spectrum | Enhanced position
|
4 [details] |
13h 03m 35.28s195.89702° |
+24° 21′ 25.6″24.35710° |
4.5′′ * |
Good |
3 (U) |
7.6′ |
1.7 ks |
Matches SIMBAD source: [VV2006] J130335.6+242126, 5.1″ away. |
 |
- Mean XRT rate: 9.0 (+3.2, -2.6) ×10-3 ct s-1
- Peak XRT rate: 9.0 (+3.2, -2.6) ×10-3 ct s-1
- RASS PSPC 3-σ upper limit: 0.14 ct s-1 (PSPC count-rate)
- Mean XRT rate converted to PSPC: 10.0 (+3.5, -2.9) ×10-3 ct s-1
- Peak XRT rate converted to PSPC: 10.0 (+3.5, -2.9) ×10-3 ct s-1
- Mean XRT flux: 3.9 (+1.4, -1.1) ×10-13 erg cm-1s-1
- Peak XRT flux: 3.9 (+1.4, -1.1) ×10-13 erg cm-1s-1
- Products: Light curve | Spectrum | Enhanced position
|
5 [details] |
13h 03m 36.27s195.90111° |
+24° 16′ 20.6″24.27240° |
5.1′′ * |
Good |
3 (U) |
2.8′ |
1.7 ks |
|
 |
- Mean XRT rate: 7.7 (+2.9, -2.3) ×10-3 ct s-1
- Peak XRT rate: 7.7 (+2.9, -2.3) ×10-3 ct s-1
- RASS PSPC 3-σ upper limit: 0.10 ct s-1 (PSPC count-rate)
- Mean XRT rate converted to PSPC: 5.3 (+2.0, -1.6) ×10-3 ct s-1
- Peak XRT rate converted to PSPC: 5.3 (+2.0, -1.6) ×10-3 ct s-1
- Mean XRT flux: 7.6 (+2.8, -2.3) ×10-13 erg cm-1s-1
- Peak XRT flux: 7.6 (+2.8, -2.3) ×10-13 erg cm-1s-1
- Products: Light curve | Spectrum | Enhanced position
|
6 [details] |
13h 03m 32.42s195.88509° |
+24° 17′ 40.2″24.29451° |
8.1′′ |
Good |
3 (U) |
4.4′ |
1.7 ks |
|
 |
- Mean XRT rate: 4.9 (+2.4, -1.9) ×10-3 ct s-1
- Peak XRT rate: 4.9 (+2.4, -1.9) ×10-3 ct s-1
- RASS PSPC 3-σ upper limit: 0.03 ct s-1 (PSPC count-rate)
- Mean XRT rate converted to PSPC: 7.5 (+3.8, -2.9) ×10-3 ct s-1
- Peak XRT rate converted to PSPC: 7.5 (+3.8, -2.9) ×10-3 ct s-1
- Mean XRT flux: 2.38 (+1.20, -0.91) ×10-13 erg cm-1s-1
- Peak XRT flux: 2.38 (+1.20, -0.91) ×10-13 erg cm-1s-1
- Products: Light curve | Spectrum
|
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.
Image
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