Prime Keys are:
	T_REC is slotted 'ts_eq' using T_REC_index
DB Index Keys are:
	T_REC_index
All Keywords for series mdi.fd_V_lev18:
	T_REC     	(time)	 
	T_REC_step	(double)	T_REC step 
	T_REC_epoch	(time)	
	TELESCOP  	(string)	 
	INSTRUME  	(string)	 
	ORIGIN    	(string)	 
	WAVELNTH  	(int)	NiI 6768 MDI/GONG line 
	CTYPE1    	(string)	 
	CRPIX1    	(float)	 
	CRVAL1    	(float)	 
	CDELT1    	(float)	 
	CUNIT1    	(string)	 
	CTYPE2    	(string)	 
	CRPIX2    	(float)	 
	CRVAL2    	(float)	 
	CROTA2    	(float)	 
	CDELT2    	(float)	 
	CUNIT2    	(string)	 
	T_OBS     	(time)	 
	DATE      	(time)	 
	DATE__OBS 	(time)	[DATE-OBS] 
	CADENCE   	(float)	 
	EXPTIME   	(float)	 
	DSUN_OBS  	(double)	 
	R_SUN     	(double)	 
	RSUN_REF  	(double)	 
	RSUN_OBS  	(double)	 
	CRLN_OBS  	(double)	 
	CRLT_OBS  	(double)	 
	CAR_ROT   	(int)	 
	SAT_ROT   	(double)	 
	INST_ROT  	(double)	 
	DATASIGN  	(int)	 
	OBS_VR    	(double)	 
	OBS_VW    	(double)	 
	OBS_VN    	(double)	 
	series_num	(int)	Identifies dataset.
	ds        	(int)	Identifies virtual dataset.
	rn        	(int)	Identifies record within dataset.
	DSNAME    	(string)	
	RUNTIME   	(time)	 
	XY_QUAL   	(int)	 
	EPH_QUAL  	(int)	 
	SOURCE    	(string)	 
	SRC_ADJ   	(string)	 
	CALTBLS   	(string)	 
	QUALITY   	(int)	 
	DPC       	(string)	 
	T_REF     	(time)	 
	S_MAJOR   	(float)	 
	S_MINOR   	(float)	 
	S_ANGLE   	(float)	 
	DATAMIN   	(double)	 
	DATAMAX   	(double)	 
	DATA_RMS  	(double)	 
	DATAMEAN  	(double)	 
	DATAMEDN  	(double)	 
	DATASKEW  	(double)	 
	DATAKURT  	(double)	 
	DATAVALS  	(int)	 
	MISSVALS  	(int)	 
	MISSPKTS  	(int)	
	CMPERRS   	(int)	 
	SIZERRS   	(string)	
	TBLXYUPD  	(time)	 
Segments for series mdi.fd_V_lev18:
	data      	    m/s	   fits	1024x1024	MDI lev1.8 Dopplergram