Name

---

L3_LAT_ALT_DAY

Purpose

---

  This routine displays one orbit of L3 data at a time. A movie can be
  generated, or a single day, or a PS file. You can step through the
  data orbit-by-orbit, or day-by-day but only for a given orbit.

Category

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  SNOE, image, movie

Calling Sequence

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  L3_LAT_ALT_DAY, Coord, YYYYDDD YYYYDDD1

Inputs

---

  COORD: The coordinate system of the data, either 'geo' or 'mag'
  YYYYDDD: The day to display.

Optional Inputs

---

  YYYYDDD1: The last day to display in a MOVIE sequence

Keyword Parameters

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  ORBIT: Set this to the orbit number to view (0 through 15) if you
      want to see 1 orbit per day. If not set, all orbits are viewed.
  MANUAL: Set this to control the movie manually
          ,: prev day (<)
          q: Quit movie
          j: Jump to day
          l: Toggle LOG mode
          any other key: next day
  LV: The large value of the data [ !SNOE.f.L3_lv ]
  SV: The small value of the data [ lv / 20. ] used with /LOG only
  PS: Set this keyword to produce a POSTSCRIPT image
  CH: Set this to the desired channel to view [ 2 ]
  LOG: Set this if the log of the data should be imaged
  MASK: Set this to mask out part of the data (PMCs)
  EXTRA=e is used for:
      IMDISP: (INTERP, OUT_POS, etc. )
      DEVICE: (FILENAME, BITS_PER_PIXEL, PORTRAIT, LANDSCAPE, etc. )
      others...

Outputs

---

  An image, or a PS file

Side Effects

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  Uses the PS device if /PS set. Uses the current WINDOW

Restrictions

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  Must be in a L3-type directory (needs NO_?_den_???.dat)

Example

---

  To generate an image:
  L3_lat_alt_day, 'geo', 1998079
  L3_lat_alt_day, 'mag', 2002150, /LOG, /PS, /INTERP, FILENAME='foo.ps'
  To watch a movie:
  L3_lat_alt_day, 'geo', 1998079, 1999079, /LOG
  L3_lat_alt_day, 'geo', 1998079, 1999079, /LOG, ORBIT=7
 
  To step through:
  L3_lat_alt_day, 'geo', 1998079, /MANUAL
  L3_lat_alt_day, 'geo', 1998079, ORBIT=0, /MANUAL

Modification History

---

  Written by: KDM; 2002-07-26
  KDM; 2002-08-21; Fixed orbit movie bug
  KDM; 2002-08-29; Fixed altitude axis error. Made tickv
                    exact. Changed title. Fixed linear CBAR
  KDM; 2002-09-01; /swap_if_big_endian
  KDM; 2002-09-09; added _EXTRA=e to OPENR
  KDM; 2002-09-18; handles L3 files with 16 orbits per day