ARRAY section

There is one ARRAY (= receiver array description) section per frontend-backend combination and per baseband. The following list is for frontend-backend combination 1 and baseband 1 (the corresponding structure names for frontend-backend combination 2 were FEBE2%HEADER1 and FEBE2%DATA1, respectively FEBE2%HEADER2 and FEBE2%DATA2 for baseband 2, and so on).

ARRAY1	S
ARRAY1%HEADER1	S
ARRAY1%HEADER1%VSYS4R_2	R	km/s	observer velocity in rest frame
ARRAY1%HEADER1%VSOU4R_2	R	km/s	source velocity in rest frame
ARRAY1%HEADER1%SOBS4R_2	C*8	'TOPOCENT'	observing frame
ARRAY1%HEADER1%SPEC4R_2	C*8	e.g. 'LSRK'	standard of rest frame for velocities
ARRAY1%HEADER1%CD4R_21	D	km/s	velocity channel separation
ARRAY1%HEADER1%CUNI4R_2	C*8	'km/s'	Unit
ARRAY1%HEADER1%CRVL4R_2	D	km/s	velocity at reference channel
ARRAY1%HEADER1%CRPX4R_2	R		reference channel
ARRAY1%HEADER1%CTYP4R_2	C*8	e.g. 'VARD-FRQ'	velocity axis for col.3
ARRAY1%HEADER1%WCSNM4R	C*8	e.g. 'LsrkVRad'	axis name
ARRAY1%HEADER1%SOBS4F_2	C*8	'TOPOCENT'	observing frame
ARRAY1%HEADER1%SPEC4F_2	C*8	e.g. 'LSRK'	standard of rest for frequencies
ARRAY1%HEADER1%CD4F_21	D	Hz	channel separation
ARRAY1%HEADER1%CUNI4F_2	C*8	'Hz'	Unit

ARRAY1%HEADER1%CRVL4F_2	D	Hz	frequency at reference channel in
			rest frame
ARRAY1%HEADER1%CRPX4F_2	R	Hz	reference channel.
ARRAY1%HEADER1%CTYP4F_2	C*8	'FREQ-FRQ'	frequency axis for col. 3
ARRAY1%HEADER1%WCSNM4F	C*8	e.g. 'LsrkFreq'	axis name
ARRAY1%HEADER1%CD3A_11	I		pixel index separation = 1
ARRAY1%HEADER1%CRVL4_1	I		pixel index value at this position = 1
ARRAY1%HEADER1%CRPX4_1	I		ref. position = 1
ARRAY1%HEADER1%CTYP4_1	C*8	'PIX-INDX'	Pixel/feed index in USEPIX array
ARRAY1%HEADER1%SBSEP	D	Hz	sideband separation
ARRAY1%HEADER1%SIDEBAND	C*3		main sideband (USB or LSB)
ARRAY1%HEADER1%RESTFREQ	D	Hz	rest frequency of line (optional)
ARRAY1%HEADER1%TRANSITI	C*20		main line transition (optional)
ARRAY1%HEADER1%MOLECULE	C*20		main line molecule (optional)
ARRAY1%HEADER1%BANDWID	D	Hz	bandwidth for this band
ARRAY1%HEADER1%FREQRES	D	Hz	frequency resolution
ARRAY1%HEADER1%CHANNELS	I		number of channels for this baseband
ARRAY1%HEADER1%DATE_OBS	C*23		observation start in TIMESYS system
ARRAY1%HEADER1%OBSNUM	I		observation number
ARRAY1%HEADER1%SCANNUM	I		scan number
ARRAY1%HEADER1%BASEBAND	I		baseband number
ARRAY1%HEADER1%FEBE	C*17		frontend-backend combination ID

 

ARRAY1%DATA1%ISWITCH	$n_{\rm rec}$ C*4		integration type
			NONE
			ON        OFF
			LOAD    SKY
			HOT      COLD
			FHI      FLO
ARRAY1%DATA1%MJD	$n_{\rm rec}.n_{\rm ph}$ D	day	MJD at integration midpoint
			in TIMESYS system
ARRAY1%DATA1%DATA	$n_{\rm pix} \times n_{\rm cpb} \times n_{\rm rec} \times n_{\rm ph}$ R		backend data