Differences between revisions 7 and 17 (spanning 10 versions)

pole

Category B

Version 3.0

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

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

2. Create a POLE.TXT file.

Here is a sample POLE.TXT file:

       86         -65      89.00000000    2010.48945

3. Answer whether you want the rotation rate fixed (y for yes, n for no).

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)

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 7 as of 2016-01-26 10:45:04 → 
  Size: 1242
  Editor: KristoferDrozd
  Comment:
+   ← Revision 17 as of 2016-07-26 09:34:39 → ⇥
  Size: 1703
  Editor: BMittan
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
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+||Category B||Version 3.0||
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+Line 7:
-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:
+Line 9:
-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 13:
-== 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
}}}

=== 2. Create a POLE.TXT file. ===

Here is a sample POLE.TXT file:
-Line 14:
+Line 33:
-== 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 35:
-== Input stdin ==
 * A time in UTC (make sure it is within the span supported by the kernels)
+=== 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)

Here is a sample output from the POLE.TXT input:
-Line 21:
+Line 43:
-NOV 16 13:09:54.824
+.60062   -65.00002    90.42707  2009.99979311
     0.05176     0.02171                 0.00000001
-Line 24:
+Line 47:
- * determine whether you want the rotation rate fixed ( y for yes, n for no)
+The first row gives all the new pole parameters for POLE.TXT. The second row shows the change.
-Line 26:
+Line 49:
- * 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)
+-----------
''(Compiled by KD)''
-Line 28:
+Line 52:
-== Output-Files ==
 * none
+CategoryPrograms