"rdrs" is a special Diviner dataset.

The format is pipes-compatible double-precision (i.e. 8 bytes per field).

The rdrs record contains all fields
of EDR, L1A, and RDR for a given timestamp.   

All detectors and channels are represented in the same record.
Detector-specific fields are named:

	[FIELDNAME]_[CHANNEL]_[DETECTOR]

e.g.:

	counts_1_01


rdrs also contains the following SPICE calculated fields:
 
vlrox
vlroy
vlroz
vel_lrox
vel_lroy
vel_lroz
vsunx
vsuny
vsunz
vearx
veary
vearz
nadirangle
sunbore
earbore
 
These are the moon-centered (MOON_ME) vectors to LRO, the velocity vector 
of LRO, the vector to the Sun, the vector to Earth, the nadir angle,
 and the angles of the Sun and Earth relative to the boresight.

I used Channel 8, detector 11 for the boresight vector.

There are two ways to use rdrs:

1) rdrs vanilla, unexpanded
2) rdrs expanded

------------------------------------------------------------------------------

===========================
1) rdrs vanilla, unexpanded
===========================

Unexpanded rdrs means having a single record contains the detector 
specific fields for all detectors.

For channel 1, detector 1, fields look like this:

    counts_1_01
    vlookx_1_01
    vlooky_1_01
    vlookz_1_01
    radiance_1_01
    tb_1_01
    clat_1_01
    clon_1_01
    cemis_1_01
    csunzen_1_01
    csunazi_1_01
    cloctime_1_01
    qca_1_01
    qge_1_01
    qmi_1_01

A single record contains the above fields for every channel and detector.

The rest of the fields do not contain the channel or detector in their name.

See /luna5/marks/rdrs_data/rdrs_end.des for the full list of fields.

* Script setup:

Set up your scripts to use pipesbig like this:

    # for csh/tcsh scripts
    set path=(/u/marks/pipesbig/rel $path)        

    # for all other scripts
    export PATH=/u/marks/pipesbig/rel:$PATH

* Descriptor file

For catting, use "rdrs_end.des" as the first argument to your cat command, 
e.g.:

    cd /luna5/marks/rdrs_data
    cat rdrs_end.des 20180401* ... | [PIPES TOOLS]

=============================
2) rdrs expanded
=============================

Expanded rdrs takes a single record from vanila rdrs and outputs 189
records, one for each channel and detector.   Thus the fields will be named:

    counts
    vlookx
    vlooky
    vlookz
    radiance
    tb
    clat
    clon
    cemis
    csunzen
    csunazi
    cloctime
    qca
    qge
    qmi

Plus two extra columns to specify channel and detector:

    c
    det

This is more like the traditional RDR format that pipes tools use.

* Descriptor file

For expanded rdrs, it is important to not put the descriptor file
with the cat command, but instead use 

    des=/luna5/marks/rdrs_data/rdrsexp.des 

as the first argument to the pipes tool following 

    " | /luna5/marks/rdrs/expand_rdrs | " 

Sample usage:

    cd /luna5/marks/rdrs_data
    cat 20180401* ... | /luna5/marks/rdrs/expand_rdrs | 
          pgetranges des=/luna5/marks/rdrs_data/rdrsexp.des > output.txt