Column Name	Description	Example	Units	Data Type	VO UCD
ARCH_FILES	Number of raw data archive files	2	none	float	meta.number
COLLECTION	Survey name, or VLA Users, or VLBA Users	NVSS	none	varchar	none
DATE_EXPIRES	none	none	none	float	none
EMAIL_ADDR	User email for notifcation, data set going public	none	none	float	none
ENTRY_DATE	none	none	none	float	none
GRANT_ACCESS	Grant access to who	ALL	none	varchar	none
IDENTITY	none	NVSS	none	varchar	none
KEYWORD	Keyword to manually unlock an observing project	eqL4W2Bp	none	float	none
NUM_SEGMENTS	Number of observing sessions (segments)	1	none	float	meta.number
OBSERVER	Observer name present in data files	Benson, John	none	varchar	none
OBSERVER_ID	Observer NRAO ID number	999	none	float	none
OBS_BANDS	List of observing band codes	X	none	varchar	none
PROJECT_CODE	Observing Program Name	AB0973	none	varchar	obs.proposal
PROJECT_LOCK	Proprietary lock status : locked , unlocked, public	UTIME	none	varchar	meta.code.status
PROPRIETARY	Proprietary period expires, data beomes public.	52410.8362947	none	float	none
PROPRIETARY_DURATION	Proprietary period : 365 days after last observation	365.0	d	float	none
RAW_PROJECT_CODE	Project code embedded in data file	AB973	none	varchar	none
ROW_DATE	(MJD)	52528.23832	d	float	none
STARTTIME	First data time in this observation (MJD)	51862.0065494	d	double	time.start
STOPTIME	Last data time in this observation (MJD)	51862.8362947	d	double	time.end
TELESCOPE	Telescope name	VLA	none	varchar	inst.tel
TELESCOPE_CONFIG	Telescope Configuration; VLA : A, B, C, D, etc.	A	none	varchar	inst.telescope.setup
TOTAL_OBS_TIME	Total observing time	5.877	hour	float	none
UNLOCK_EXPIRE	(MJD)	0.0	d	float	none
WARNED	Count emails sent warning owner, data public	0.0	none	float	none