DATA section

There is one DATA section per frontend-backend combination. The following list is for frontend-backend combination 1 (the corresponding structure names for combination 2 were DATA2%HEADER and DATA2%DATA, and so on). Data associated parameters are interpolated from the monitor data (next section) at the MIDTIME timestamp of the backend data.

DATA1%HEADER	S
DATA1%HEADER%CHANNELS	I		number of channels (for concatenated basebands)
DATA1%HEADER%OBSTATUS	C*10		Observation o.k. ? (OK/ABORT)
DATA1%HEADER%DPBLOCK	L		Data blocking ?
DATA1%HEADER%OBSTYPE	C*1		observation type (CAL, REF, ON, HOT, COLD, SKY)
DATA1%HEADER%LST	D	s	Local apparent sidereal time (obs. start)
DATA1%HEADER%DATE_OBS	C*23		observation start in TIMESYS system
DATA1%HEADER%OBSNUM	I		observation number
DATA1%HEADER%SCANNUM	I		scan number
DATA1%HEADER%FEBE	C*17		frontend-backend identification
DATA1%DATA%AZIMUTH	$n_{\rm rec}$ D	deg	azimuth inc. wobbler offsets
DATA1%DATA%BASLONG	$n_{\rm rec}$ D	deg	actual long. in astronomical basis frame,
			inc. wobbler offsets
DATA1%DATA%BASLAT	$n_{\rm rec}$ D	deg	actual lat. in astronomical basis frame,
			inc. wobbler offsets
DATA1%DATA%CBASLONG	$n_{\rm rec}$D	deg	commanded long. in astr. basis frame,
			inc. wobbler offsets
DATA1%DATA%CBASLAT	$n_{\rm rec}$D	deg	commanded lat. in astr. basis frame,
			inc. wobbler offsets
DATA1%DATA%ELEVATIO	$n_{\rm rec}$D	deg	elevation inc. wobbler offsets
DATA1%DATA%DFOCUS_X_Y_Z	$n_{\rm rec} \times 3$ D	mm	(opt.) focus offsets X, Y, Z (subrefl. position)
DATA1%DATA%FOCUS_X_Y_Z	$n_{\rm rec} \times 3$ D	mm	focus (subreflector position) X, Y, Z
DATA1%DATA%INTEGTIM	$n_{\rm rec}$ D	s	integration time
DATA1%DATA%INTEGNUM	$n_{\rm rec}$ I		integration point number
DATA1%DATA%LST	$n_{\rm rec}$ D	s	local apparent sidereal time
DATA1%DATA%LONGOFF	$n_{\rm rec}$ D	deg	long. offset from source in user native frame
DATA1%DATA%LATOFF	$n_{\rm rec}$ D	deg	lat. offset from source in user native frame
DATA1%DATA%MLONPOLE	$n_{\rm rec}$ D	deg	(opt.) longitude of basis celestial pole in
			body system
DATA1%DATA%MLATPOLE	$n_{\rm rec}$ D	deg	(opt.) basis latitude of body frame pole
DATA1%DATA%MCRVAL1	$n_{\rm rec}$ D	deg	(opt.) body apparent long. in basis system
DATA1%DATA%MCRVAL2	$n_{\rm rec}$ D	deg	(opt.) body apparent lat. in basis system
DATA1%DATA%MIDTIME	$n_{\rm rec}$ D	day	MJD at integration midpoint in TIMESYS
			system
DATA1%DATA%MJD	$n_{\rm rec}$ D	day	MJD at integration endpoint in TIMESYS
			system
DATA1%DATA%NINTS	$n_{\rm rec}$ I		integrations in block

DATA1%DATA%PHI_X_Y_Z	$n_{\rm rec}$ D	deg	Phi (subreflector rotation)
			X, Y, Z (see MBFITS manual)
DATA1%DATA%PC_11	D		matrix elements of
			transformation from pixel
			coordinates to intermediate
			pixel coordinates
			(projection of user frame)
DATA1%DATA%PC_12	D
DATA1%DATA%PC_21	D
DATA1%DATA%PC_22	D
DATA1%DATA%PARANGLE	$n_{\rm rec}$ D	deg	parallactic angle
DATA1%DATA%SUBSCAN	$n_{\rm rec}$ I		subscan number of data point
DATA1%DATA%OTFDATA	$n_{\rm pix} \times n_{\rm chan} \times n_{\rm rec}$ R	counts, $T_{\rm A}^*$ [K]	OTF data with basebands
			concatenated and off subtracted
DATA1%DATA%RDATA	$n_{\rm pix} \times n_{\rm ch}$ R	counts, $T_{\rm A}^*$ [K]	single pointing data, basebands
			concatenated and off subtracted