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Lightcurve Data

The following table provides links to light curve data collected by U.S. Government sensors on fireball events. The light curve plotted in each event report shows how the brightness of the bolide varied as it passed through Earth’s atmosphere and broke up. Note that the data columns in this table are taken from the current CNEOS Fireballs database, not from the updated information in these newly released reports; the revised data will be incorporated into the CNEOS Fireballs database at a later time.

Peak Brightness
Date/Time (UT)
Calculated Total
Impact Energy
Lightcurve file

Use the "Print" button above to print data contained in this table. Use the "CSV" or "Excel" buttons to download the data for use in your spreadsheet program. Allow a few seconds for downloads of large datasets.

Machine-readable data are available. See the API document for details.
Table Column Descriptions  |  [[legendButtonText]]
Peak Brightness Date/Time (UT)
The date and time in UT (Universal Time) of this event's peak brightness.
Latitude (deg.)
Geodetic latitude in degrees north (N) or south (S) of the equator for this event.
Longitude (deg.)
Geodetic longitude in degrees east (E) or west (W) of the prime meridian for this event.
Altitude (km)
Altitude in kilometers (km) above the reference geoid for this event.
Calculated Total Impact Energy (kt)
The impact energy of the event in kilotons of TNT (kt) computed from an empirical expression relating radiated and impact energy (see the Introduction for more details).
Lightcurve file (PDF-format)
PDF file containing lightcurve plots.

An historical reference to the source and nature of this data can be found in:

Tagliaferri, E., Spalding, R. E., Jacobs, C., & Worden, S. P. (1994). Detection of Meteoroid Impacts by Optical Sensors. In T. Gehrels (Ed.), Hazards due to Comets and Asteroids (pp. 199–220). University of Arizona Press.