parse_boresight_line

Data_Reduction.DSN.logs.parse_boresight_line(line)

Parse a line of boresight data.

Proxesses data from an EAC 5pYYYYDDD.xxx file, where xxx is pri (primary, the preferred frequency for the boresight) or sec (secondary). line is a line from the log file. The columns in the table are:

- DOY:      day of year (3 digit integer)
- UTC:      Coordinated Universal Time (HH:MM:SS)
- SOURCE:   name of the source used for boresight
- FREQ:     receiver frequency used (MHz)
- POL:      feed polarization (LCP/RCP)
- HA:       approximate hour angle (deg) at center position
- DEC:      approximate declination (deg) at center position
- AZ:       approximate azimuth (deg) at center position
- EL:       approximate elevation (deg) at center position
- AX_HXPOS: total initial cross-elevation or cross-declination offset (deg)
- EL_DEPOS: total initial elevation or declination offset (deg)
- DELTAP_X: delta Ta (K) at X-direction plus offset (nominallY +HPBW/2)
- DELTAZ_X: delta Ta (K) at X-direction zero offset
- DELTAM_X: delta Ta (K) at X-direction minus offset (nominally -HPBW/2)
- NUMPTS_X: always 0 (number of samples at a position?)
- RMS_X:    always 0.0 (r.m.s. of sample mean)
- BASEP_X:  Ta (K) of baseline in plus X offset direction
- ON1_X:    always 0
- ON2_X:    always 0
- BASEM_X:  Ta (K) of baseline in minus X offset direction
- BW_X:     measured beamwidth (deg) in X direction
- ERR_X:    estimated error (deg) of beamwidth in X direction
- POS_X:    total boresight offset (deg) in X not including manual offset
- DELTAP_Y: delta Ta (K) at Y-direction minus offset (nominallY -HPBW/2)
- DELTAZ_Y: delta Ta (K) at Y-direction zero offset position
- DELTAM_Y: delta Ta (K) at Y-direction plus offset (nominallY +HPBW/2)
- NUMPTS_Y: always 0
- RMS_Y:    always 0.0
- BASEP_Y:  Ta (K) of baseline in plus Y offset direction
- ON1_Y:    always 0
- ON2_Y:    always 0
- BASEM_Y:  Ta (K) of baseline in minus Y offset direction
- BW_Y:     measured beamwidth (DEG) in Y direction
- ERR_Y:    estimated error (deg) of beamwidth in Y direction
- POS_Y:    total boresight offset (deg) in Y not including manual offset

The following summarize the boresight results. One pair of columns should be the same as POS_X and POS_Y and the other pair calculated from these, depending on whether the boresight was done in XDEC,DEC or XEL,EL:

- XELOFF:   total boresight offet (deg) in cross-el, not incl. manual offs.
- ELOFF:    total boresight offet (deg) in elevation, not incl. manual offs.
- XDECOFF:  total boresight offet (deg) in cross-dec, not incl. manual offs.
- DECOFF:   total boresight offet (deg) in declination, not incl. manual offs.
- The following may vary according to a subreflector position model
- YPOS:     subreflector Y axis position (inches)
- ZPOS:     subreflector Z axis position (inches)

The following are offsets from the model:

- YOFF:     subreflector Y axis offset (inches)
- ZOFF:     subreflector Z axis offset (inches)

The information extracted from this and returned in a dictionary is:

- time:     UNIX timestamp in seconds since the epoch 1970.0
- SOURCE:
- FREQ:
- POL:
- HA:
- DEC
- AZ:
- EL:

Notes

This function is unfinished.