Differences between revisions 10 and 13 (spanning 3 versions)

pole

Description

This program solves for the pole right ascension, declination and rotation rate for a body in principal axis rotation. The rotation rate is calculated in degrees/day while right ascension and declination are calculated in degrees.

Input Files

POLE.TXT - simple text file containing nominal pole RA (deg), DEC (deg), PM (deg), OMEGA (deg/day)
LMRKLIST.TXT - list of landmarks

$/!\$ POLE.TXT and LMRKLIST.TXT must be in the working directory.

POLE.TXT is a single row file that contains the predicted pole RA (deg), DEC (deg), PM (deg), and OMEGA (deg/day). These values are given in the .tpc kernel file for the object. LMRKLIST.TXT contains a list of landmarks.

Using pole

Input a time in UTC.
$/!\$ Make sure the time is within the span supported by the kernels.

2018 NOV 16 13:09:54.824

Create a POLE.TXT file.

Sample POLE.TXT file:

       86         -65      89.00000000    2010.48945

Answer whether you want the rotation rate fixed (y for yes, n for no).
Enter
- 0 if you want to iterate
- 1 if you want to keep the result (this updates POLE.TXT)
- 2 if you want the previous result (this is nominal if on the first iteration)

Here is a sample output from the POLE.TXT input:

    86.60062   -65.00002    90.42707  2009.99979311
     0.05176     0.02171                 0.00000001

The first row gives all the new pole parameters for POLE.TXT. The second row shows the change.

(Compiled by KD)

CategoryPrograms

-  ⇤ ← Revision 10 as of 2016-01-27 13:28:01 → 
  Size: 1426
  Editor: tcampb
  Comment:
+   ← Revision 13 as of 2016-02-01 10:54:24 → ⇥
  Size: 1625
  Editor: BMittan
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 5:
-The program pole solves pole right ascension, declination, and rotation rate for a body in principal axis rotation. The rotation rate is calculated in degrees/day while right ascension and declination are in degrees.
+This program solves for the pole right ascension, declination and rotation rate for a body in principal axis rotation. The rotation rate is calculated in degrees/day while right ascension and declination are calculated in degrees.
 Line 7:
-For pole to run, POLE.TXT and [[LMRKLIST.TXT]] are required in the working directory. [[LMRKLIST.TXT]] is just a file containing a list of landmarks and POLE.TXT is a single row file that contains the predicted pole RA (deg), DEC (deg), PM (deg), and OMEGA (deg/day). These values are given in the .tpc kernel file for the object.
+== Input Files ==
 * POLE.TXT - simple text file containing nominal pole RA (deg), DEC (deg), PM (deg), OMEGA (deg/day)
 * [[LMRKLIST.TXT]] - list of landmarks
-Line 9:
+Line 11:
-== POLE.TXT Example ==
+'''''' /!\ POLE.TXT and [[LMRKLIST.TXT]] must be in the working directory. 

POLE.TXT is a single row file that contains the predicted pole RA (deg), DEC (deg), PM (deg), and OMEGA (deg/day). These values are given in the .tpc kernel file for the object. [[LMRKLIST.TXT]] contains a list of landmarks. 

----------
== Using pole ==

 1. Input a time in UTC.
 . /!\ Make sure the time is within the span supported by the kernels.
{{{
2018 NOV 16 13:09:54.824
}}}

 1.#2 Create a POLE.TXT file.

Sample POLE.TXT file:
-Line 14:
+Line 31:
-== Input-Files ==
 * POLE.TXT - simple text file containing nominal pole RA (deg), DEC (deg), PM (deg), OMEGA (deg/day)
 * [[LMRKLIST.TXT]] - list of landmarks
+.#3 Answer whether you want the rotation rate fixed (y for yes, n for no).
-Line 18:
+Line 33:
-== Input stdin ==
 * A time in UTC (make sure it is within the span supported by the kernels)
{{{
2018 NOV 16 13:09:54.824
}}}
+.#4 Enter 
  * 0 if you want to iterate
  * 1 if you want to keep the result (this updates POLE.TXT)
  * 2 if you want the previous result (this is nominal if on the first iteration)
-Line 24:
+Line 38:
- * Determine whether you want the rotation rate fixed ( y for yes, n for no)

 * 0 if you want to iterate, 1 if you want to keep result (updates POLE.TXT), 2 if you want previous result (nominal if on 1st iteration)

== Output ==
+Here is a sample output from the POLE.TXT input:
-Line 34:
+Line 44:
- * First row is all the new pole parameters for POLE.TXT while the second row is the change.
+The first row gives all the new pole parameters for POLE.TXT. The second row shows the change.

-----------
''(Compiled by KD)''

CategoryPrograms