File Naming Conventions

A list of the files included in the guest observer distribution tapes is available.
If you like, you can look at other information or the processing steps.

Rules:

1. File names are always printed in a "proportional font" if your Web browser allows it.

2. Anything outside of brackets is used literally in the filename. For example "ad" represents "ad".

3. A bracketed set of values separated by slashes means any one of those values may be used. For example "g[2/3]" represents either "g2" or "g3".

4. A single word in brackets represents a particular string of digits as follows:
   • "[date]" represents the date on which the observation started in year, month, day order. For example: "930724" for an observation starting on July 7, 1993.

   • "[start]" represents the time (UT) of day when the observation started. For example: "1829" for an observation starting at 6:29 pm Universal Time.

   • "[end]" represents the time (UT) of day when the observation ended. For example: "1641" for an observation ending at 4:41 pm Universal Time. Note that observations can last from one day to the next. Therefore, "[end]" can be less than "[start]".

   • "[sequence]" represents a 7-digit number unique to a particular observation and processing run. For example: "70011000".

   • "[mode]" represents a 5-digit number which identifies a particular modally split science file. The first three digits uniquely mark each file of the same mode and instrument. These numbers are generated sequentially, but there may be gaps since empty files are removed. The last two digits specify the observing mode of the spacecraft:
     • 01 = SIS FAINT mode
     • 02 = SIS BRIGHT mode
     • 12 = SIS BRIGHT2 mode
     • 70 = GIS PH mode
     • 71 = GIS MPC mode

     For example: "00270" is the second GIS PH mode file generated for either the GIS2 or the GIS3.

Note: