GRB 830801

{{Short description|Gamma-ray burst}}

{{Infobox astronomical event}}

GRB 830801 is a gamma-ray burst that occurred on 1983 August 1. It is one of the brightest GRB events known.

It had a peak flux of 3.0 photons·cm⁻²·s⁻¹·keV⁻¹ averaged from 50 to 300 keV, a dead time correction by a factor of 1.9, and a smooth light curve for the peak 256 ms time interval.

The peak flux P256 was around 1400 photons·s−1·cm−2.{{Cite journal |arxiv = astro-ph/0101461|doi = 10.1086/338651|title = Redshifts and Luminosities for 112 Gamma-Ray Bursts|journal = The Astrophysical Journal|volume = 563|issue = 2|pages = L123–L127|year = 2001|last1 = Schaefer|first1 = Bradley E.|last2 = Deng|first2 = Ming|last3 = Band|first3 = David L.|bibcode = 2001ApJ...563L.123S| s2cid=17381345 }}

This was also the first detection of the influence of a gamma burst on the upper atmosphere.