Prime Keys are:
	VRCENT
	MASKID
DB Index Keys are:
	VRCENT
	MASKID
All Keywords for series hmi.lookup_ChebyCoef_BNoise:
	DATE      	(time)	Date_time of processing; ISO 8601 format UTC
	TELESCOP  	(string)	For HMI: SDO/HMI
	INSTRUME  	(string)	For HMI: HMI_SIDE1, HMI_FRONT2, or HMI_COMBINED
	WAVELNTH  	(float)	For HMI: 6173.3 Angstroms
	CAMERA    	(int)	For HMI: 1 (side camera), 2 (front camera), or 3 (both cameras)
	BUNIT     	(string)	BUNIT: physical units of data
	ORIGIN    	(string)	ORIGIN: location where file made
	QUALITY   	(int)	Level 1.5 Quality word
	CONTENT   	(string)	CONTENT: Chebyshev polynomial coefs
	HISTORY   	(string)	processing history of data
	COMMENT   	(string)	commentary on the data
	BLD_VERS  	(int)	Code release build number of program that created this record
	VRCENT    	(int)	VRCENT: Orbital velocity
	MASKID    	(int)	Selects mask for specific time range
	NGOOD     	(int)	Number of mags used to calculate the mask
	INVPHMAP  	(string)	Flag/Comment on phase map
	POLYDEGR  	(int)	Degree of Chebyshev polynormials
	BCUTOFF   	(float)	Threshold of field strength to be selected for median computation
	DELTAVR   	(float)	Half-width winder: Vr-delta_vr < Vr < Vr + delta_vr
	CRPIX1_O  	(float)	CRPIX1 from the first selected ME data
	CRPIX2_O  	(float)	CRPIX2 from the first selected ME data
	CRVAL1_O  	(float)	CRVAL1 from the first selected ME data
	CRVAL2_O  	(float)	CRVAL2 from the first selected ME data
	CDELT1_O  	(float)	CDELT1 from the first selected ME data
	CDELT2_O  	(float)	CDELT2 from the first selected ME data
	CUNIT1_O  	(string)	CUNIT1 from the first selected ME data
	CUNIT2_O  	(string)	CUNIT2 from the first selected ME data
	CROTA2_O  	(float)	CROTA2 angle from the first selected ME data
	WCSNAME   	(string)	WCS system name
	T_REC_O   	(time)	Slot time--Reference Time for the first selected ME data
	DATASIGN  	(int)	DATASIGN: sign of observable quantity wrt Sun center
	DSUN_ORI  	(double)	Distance from SDO to Sun center.
	DSUN_REF  	(double)	Astronomical Unit
	RSUN_REF  	(double)	Reference radius of the Sun: 696,000,000.0 m
	RSUN_ORI  	(double)	Sun's radius in pixel
	CALVER64  	(longlong)	Calibration Version
Segments for series hmi.lookup_ChebyCoef_BNoise:
	data      	       	   fits	VARxVAR	0.000000