Merged Unified Abstract and Orbit/Attitude data in ASCII format, 04/01/98 ___________________________________________________________________________ This data set was contains the Dynamics Explorer 2 (DE-2) Unified Abstract (UA) data and corresponding orbit/attitude and geophysical data at 16 second time resolution in ASCII format. In addition to the daily files (DEyyddd.ASC) the directory also contains a AAREADME.TXT file (this file) and an example IDL program that reads and plots a single day's data. ___________________________________________________________________________ Available parameters and assigned idendification number: 1 NACS N2 density cm-3 2 NACS O density cm-3 3 NACS HE density cm-3 4 NACS AR density cm-3 5 NACS N density cm-3 6 WATS TN neutral temperature K 7 WATS NVE eastward neutral wind m/s 8 WATS NVU upward neutral wind m/s 9 LANG NP plasma density cm-3 10 LANG TE electron temperature K 11 FPI FWAV wavelength Angstrom 12 FPI FALT tangent altitude km 13 FPI FVN northward neutral wind m/s 14 FPI FTEM neutral temperature K 15 FPI RAY intensity Raleighs 16 RPA TI ion temperature K 17 RPA NI total ion density cm-3 18 RPA IVE eastward ion drift m/s 19 RPA IVN northward ion drift m/s 20 RPA IVU upward ion drift m/s ___________________________________________________________________________ Orbital, attitude, and geophysical data and assigned identification number: 13 Orbit number 32 Altitude km 33 Latitude deg 34 Longitude deg 37 Local Solar Time hr 38 Local Magnetic Time hr 39 L Shell 40 Invariant Latitude deg 76 Solar Zenith Angle deg ___________________________________________________________________________ Format of ASCII version of UA/OA files for DE 04/01/98 DEYYDDD.ASC contains the satellite, orbital, and geophysical data for day YYDDD. (YY = year-1900, DDD is the day number). Files are written in a formatted ASCII, one file for each days data, containing the UA data for each day and the OA data interpolated to the UT's corresponding to the data points. File names are of the form DEYYDDD.ASC Record Format Parameter ------ ------------------------ ----------------------- 1 I7 Number of points in the file 2 1X,I5,5X,A Code number for UT_secs, and 'UT_secs' 3+ 11I7 UT (seconds) 1X,I5,5X,A Code number for Orbit, and 'orbit' 11I7 Orbit number 1X,I5,5X,A Code number for OA Parameter and name 1x,1p6e12.4 OA parameter 1X,I5,5X,A Code number for UA Parameter and name 1x,1p6e12.4 UA parameter Note that an FTPBrowser interface to this dataset, providing data subsetting and and graphical browsing, is available at "http://ftpbrowser.gsfc.nasa.gov/" -------------------------------------------