Format of Geotail Ion 3D Distribution Function (Editor-A 12 sec resolution)
Announcement of an ASCII format change
The year description in all data in the ASCII format has been changed since Sep. 1, 2013. Now, 4 digit numbers are used to express "years." (e.g. 92 -> 1992)
We are very sorry for your inconvinience.
One sample data of the ion 3D distribution function is consist of the following 3586 lines.
The velocity vector presents the flowing direction. (not the sensor looking direction)
1) 1st Line
| Column No. | Name | Unit | Forat |
|---|---|---|---|
| 1 | Date | YYYYMMDD | i8 |
| 2 | Time | HH:MM:SS | 3(1x,i2.2) |
2) 3584 Lines
| Column No. | Name | Unit | Format |
|---|---|---|---|
| 1 | Energy | keV | f8.3 |
| 2 | |V| | km/s | f8.0 |
| 3 | azimuthal angle | degree in GSE | f8.2 |
| 4 | elevation angle | degree in GSE | f8.2 |
| 5 | counts/sample | counts | f8.2 |
| 6 | phase space density | s3/m6 | e12.3 |
| 7 | one count level | s3/m6 | e12.3 |
3) A Blank Line
Ion 2D Distribution Function (Editor-B 12 sec resolution)
One sample data of the ion 2D distribution function is consist of the following 514 lines.
The velocity vector presents the flowing direction. (not the sensor looking direction)
1) 1st Line
| Column No. | Name | Unit | Forat |
|---|---|---|---|
| 1 | Date | YYYYMMDD | i8 |
| 2 | Time | HH:MM:SS | 3(1x,i2.2) |
2) 512 Lines
| Column No. | Name | Unit | Format |
|---|---|---|---|
| 1 | Energy | keV | f8.3 |
| 2 | |V| | km/s | f8.0 |
| 3 | azimuthal angle | degree in GSE | f8.2 |
| 4 | counts/sample | counts | f8.2 |
| 5 | phase space density | s3/m6 | e12.3 |
| 6 | one count level | s3/m6 | e12.3 |
3) A Blank Line