Convert Julian Date to Greenwich Apparent Sidereal Time
by Darin Koblick
17 Jul 2010
(Updated 29 May 2012)
Find the Greenwich Apparent Sidereal Time Given any Julian Date
|
Watch this File
|
| File Information |
| Description |
Convert a specified Julian Date Vector to Greenwich Apparent Sidereal Time (GAST). The expected input matrix may contain multiple dimensions. The output matrix will be in the same size as the input matrix. Warning: Use caution when using GAST as a substitute for Greenwich Mean Sidereal Time (GMST).
To run JD2GAST, use the following code sequence:
GAST = JD2GAST(JD);
Where:
JD is the Julian Date input (days)
GAST is the resulting Greenwich Apparent Sidereal Time output (0 to 360deg) |
| Acknowledgements |
The author wishes to acknowledge the following in the creation of this submission:
Julian Date to Greenwich Mean Sidereal Time
|
| MATLAB release |
MATLAB 7.5 (R2007b)
|
|
Tags for This File
|
| Everyone's Tags |
|
| Tags I've Applied |
|
| Add New Tags |
Please login to tag files.
|
| Updates |
| 19 Jul 2010 |
Fixed bug which would re-size the input vector to [N x 1] |
| 29 May 2012 |
Updated mean obliquity of elliptic equation to be consistent with units. All units in this equation are in degrees. |
|
Contact us at files@mathworks.com
