Visit

Metadata about the pointings of the telescope, largely associated with the boresight of the LSSTComCam focal plane as a whole.

Columns

name	datatype	description	unit	nullable	ivoa:ucd	tap:column_index	tap:principal	votable:arraysize	votable:xtype	length	precision
visit primary key indexed	long	Unique identifier.		true	meta.id;obs.image		1
physical_filter	char	ID of physical filter, the filter associated with a particular instrument.		true			0	*		32
band	char	Name of the band used to take the visit where this source was measured. Abstract filter that is not associated with a particular instrument.		true			1	*		1
ra	double	Right Ascension of focal plane center.	deg	true			1
dec	double	Declination of focal plane center	deg	true			1
skyRotation	double	Sky rotation angle.	deg	true			1
azimuth	double	Azimuth of focal plane center at the middle of the visit.	deg	true			0
altitude	double	Altitude of focal plane center at the middle of the visit.	deg	true			0
zenithDistance	double	Zenith distance at the middle of the visit.	deg	true			0
airmass	double	Airmass of the observed line of sight.		true			1
expTime	double	Spatially-averaged duration of visit, accurate to 10ms.	s	true			1
expMidpt	timestamp	Midpoint time for exposure at the fiducial center of the focal plane array. TAI, accurate to 10ms.		true		6	0	*	timestamp		6
expMidptMJD	double	Midpoint time for exposure at the fiducial center of the focal plane array in MJD. TAI, accurate to 10ms.	d	true	time.epoch;obs.exposure	5	1
obsStart	timestamp	Start time of the visit at the fiducial center of the focal plane array, TAI, accurate to 10ms.		true			0	*	timestamp		6
obsStartMJD	double	Start of the exposure in MJD, TAI, accurate to 10ms.	d	true	time.start;obs.exposure	7	0

Index	Definition	Description
idx_Visit_visit	visit	Unique index on the visit column