Prime Keys are:
	MidTime is slotted 'ts_eq' using MidTime_index
	LonHG is slotted 'slot' using LonHG_index
	LatHG is slotted 'slot' using LatHG_index
	LonCM is slotted 'slot' using LonCM_index
DB Index Keys are:
	MidTime_index
	LatHG_index
	LonCM_index
All Keywords for series hmi.tdVtrack_synopHC:
	MidTime   	(time)	Midpoint of tracking interval for AR
	LonHG     	(float)	Longitude of tracked region center
	LatHG     	(float)	Latitude of tracked region center
	LonCM     	(float)	CM (Stonyhurst) Longitude of region center at MidTime
	CarrRot   	(int)	Carrington rotation at MidTime
	CMLon     	(float)	Longitude of central meridian at MidTime
	CRPIX1    	(float)	WCS reference pixel location
	CRPIX2    	(float)	WCS reference pixel location
	CRPIX3    	(float)	WCS reference pixel location
	CRVAL1    	(float)	WCS reference point value
	CRVAL2    	(float)	WCS reference point value
	CRVAL3    	(time)	WCS reference point value
	CDELT1    	(float)	WCS coordinate increment at reference point
	CDELT2    	(float)	WCS coordinate increment at reference point
	CDELT3    	(float)	WCS coordinate increment at reference point
	T_START   	(time)	Start of tracking interval
	T_STOP    	(time)	End of tracking interval
	LonSpan   	(float)	Longitude span of tracking interval
	MeanMU    	(float)	Mean cos (projection angle) of region center
	MeanLat   	(float)	Mean latitude of mapped locations
	Coverage  	(float)	Duty cycle (valid images/total frames)
	ZonalTrk  	(float)	Zonal tracking rate (rel to Carrington)
	ZonalVel  	(float)	Zonal tracking rate (rel to Carrington)
	LonDrift  	(float)	Longitude drift over tracking interval
	Quality   	(int)	Data quality flag
	DataVals  	(int)	Number of valid data values in cube
	MissVals  	(int)	Number of missing or out-of-range values in data cube
	DataMin   	(float)	Minimum value in data cube
	DataMax   	(float)	Maximum value in data cube
	DataMean  	(double)	Mean value over data cube
	DataRMS   	(double)	RMS data variation over cube
	DataSkew  	(double)	Skewness of data distribution over data cube
	DataKurt  	(double)	Kurtosis of data distribution over data cube
	Module    	(string)	Creation module
	BLD_VERS  	(string)	JSOC library build
	Source    	(string)	Input data source
	Created   	(time)	File creation time
	Input     	(string)	Input data records
	Backgrnd  	(string)	Background image subtracted from data
	RejectList	(string)	Image rejection list
	HISTORY   	(string)	Record modification history
	WCSNAME   	(string)	WCS name
	WCSAXES   	(int)	Number of WCS axes
	CTYPE1    	(string)	WCS axis type
	CTYPE2    	(string)	WCS axis type
	CTYPE3    	(string)	WCS axis type
	CUNIT1    	(string)	WCS axis units
	CUNIT2    	(string)	WCS axis units
	CUNIT3    	(string)	WCS axis units
	MapProj   	(string)	Map projection
	MapScale  	(float)	Map scale
	Map_PA    	(float)	Position angle of Carrington north wrt axis 2
	Width     	(float)	Longitude extent of region (nominal)
	Height    	(float)	Latitude extent of region (nominal)
	Interp    	(string)	Interpolation scheme
	Duration  	(float)	Length of tracking interval
	MeridTrk  	(float)	Meridional tracking rate
	MeridVel  	(float)	Meridional tracking velocity at RSunRef
	LatDrift  	(float)	Latitude drift over tracking interval
	RSunRef   	(float)	Reference value of solar radius
	MidTime_epoch	(time)	MidTime index base
	MidTime_step	(double)	MidTime index step
	LonHG_base	(float)	LonHG index base
	LonHG_step	(float)	LonHG index step
	LatHG_base	(float)	LatHG index base
	LatHG_step	(float)	LatHG index step
	LonCM_base	(float)	LonCM index base
	LonCM_step	(float)	LonCM index step
Segments for series hmi.tdVtrack_synopHC:
	V         	    m/s	   fits	512x512x640	Tracked data cube
	Log       	     NA	generic	Tracking log