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GRB 200424A — Source 1 (SWIFT J203001.3-394159)

Build custom XRT products for this source.

Image of the XRT detection

This source is detected in 1 block. Show all images.

Image of the LC


Image of the spectrum

Enhanced position

Image of the UVOT image

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This source has been manually confirmed as the GRB afterglow so these products are no longer updated. The up-to-date data for the afterglow are now available through the main GRB results area for this GRB.

Source details
Rank/Classification: 2: Outbursting source
RA (J2000):20h 30m 01.31s (= 307.50547°)
Dec (J2000):-39° 42′ 00.5″ (= -39.7001°)
Error (radius, 90%):3.0″ (enhanced position)
Detection flag:Good
XRT exposure:9.5 ks (vignetting corrected)
Peak rate:8.3 (±1.6) ×10-3 ct s-1
Peak flux:3.6 (±0.7) ×10-13 erg cm-2 s-1
Mean rate:8.3 (±1.6) ×10-3 ct s-1
Mean flux:3.6 (±0.7) ×10-13 erg cm-2 s-1
The source is fading with 4.8-σ significance
Has spectral fit?Yes
NH 4.28 × 1020 cm-2
Γ 1.91
Database ID:363
Possible issues:
Optical Loading: No warning (automatic)
Stray Light: No warning (automatic)
Extended Emission: No warning (automatic)
Catalogue information
Known X-ray emitter?No. Get XMM upper limit
Rass upper limit20.046 ct s-1
Obs rate/Rass UL≤0 σ
Fading? Yes (4.8-σ difference between at least one detection and a later detection or upper limit).
Near 2MASS source? No
Near SIMBAD source?No.
Catalogue SearchCone search radius 9″ Vizier | Simbad | NED | X-ray master | LSXPS | 3XMM-DR5

All XRT count rates and fluxes are 0.3—10 keV
1Catalogued count-rates have been converted to XRT equivalents.
2Catalogued upper limits and fluxes have been converted to the XRT equivalent using the automatic power-law spectral fit described above.