steps are calculated at geocentre) and slow topocentric mode (where each integration step is calculated for the topocentric observatory position (recorded as MPC code in `ArchiveLogs.txt` where the current searched instrument is hosted - this is important only for very close flyby observations of PHAs or VIs where topocentric correction could become important). Finally, three output options are provided: HTML, simple text (formatted as a table), and CSV (fields separated by coma).\
The [*Mega-Precovery*]{} output columns are: the archive name (in the archive/telescope-instrument format), the image ID (tentatively linked in HTML to the collection server to retrieve the FITS image), the observed time (YYYY/MM/DD HH:MM:SS UT format), exposure time (in seconds), the expected object magnitude ($V$ when available), the telescope limiting magnitude (rough limit given the aperture, based on conventions mentioned in Section 2.1), filter and targeted object, angular distance to the field pointing (in degrees, followed by a percentage compared with the circular FOV), and a link to a plot showing the camera overlay (only for available mosaic cameras) marking the expected position of the searched object.

MASFO for Fixed Objects
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In July 2017 we introduced MASFO[^26] tool to allow [*Mega-Archive Search for Fixed Objects*]{} given in J2000 