#
# astrometrics.txt, 27 May 11


!msgpostfix Calculate mean obliquity of the ecliptic, in degrees\n
!need all
 21.448
 46.815
  0.00059
- 0.001813


!msgpostfix \n

# psia77 = (5038.7784 + (-1.07259 + (-0.001147) * t) * t) * t * DAS2R;
# oma77  =       EPS0 + ((0.05127 + (-0.007726) * t) * t) * t * DAS2R;
# chia   = (  10.5526 + (-2.38064 + (-0.001125) * t) * t) * t * DAS2R;
# Expressions for the precession quantities based upon the IAU (1976) system of astronomical constants
# Astronomy and astrophysics, 1977
!msgprefix Precession angles (Lieske 1977)

!need all
5038.7784
-  1.07259
-  0.001147
   0.05127
-  0.007726
  10.5526
-  2.38064
-  0.001125


# Sofa 2009
# (450160.280 + (-482890.539
#             + (7.455 + 0.008 * t) * t) * t) * DAS2R
#             + fmod(-5.0 * t, 1.0) * D2PI
!msgprefix Longitude of mean ascending node of the lunar orbit on the ecliptic, measured from the mean equinox of date

!need all
 450160.280
-482890.539
      7.455
      0.008
-     5.0
#      1.0


# Sofa 2009
!msgprefix Equation of the equinoxes

!need all
0.00264
0.000063


# Sofa 2009
# Capitaine N., Guinot B. and McCarthy D.D, 2000, Astron. & Astrophys.,
# 355, 398-405.
!msgprefix Earth rotation angle at given UT

!need all
0.7790572732640
0.00273781191135448


# Sofa 2009
# Simon, J.-L., Bretagnon, P., Chapront, J., Chapront-Touze, M.,
# Francou, G., Laskar, J. 1994, Astron. & Astrophys. 282, 663-683
!msgprefix Calculate mean elongation of the Moon from the Sun (IERS Conventions 2003)

!need all
    1072260.703692
 1602961601.2090
-         6.3706
          0.006593
-         0.00003169


# Sofa 2009
!msgprefix Calculate mean anomaly of the Moon (IERS Conventions 2003)

!need all
     485868.249036
 1717915923.2178
         31.8792
          0.051635
-         0.00024470


# Sofa 2009
!msgprefix Calculate mean anomaly of the Sun (IERS Conventions 2003)

!need all
   1287104.793048
 129596581.0481
-        0.5532
         0.000136
-        0.00001149


# Sofa 2009
!msgprefix Calculate mean longitude of Mercury (IERS Conventions 2003)

!need all
   4.402608842
2608.7903141574


# Sofa 2009
!msgprefix Calculate mean longitude of Venus (IERS Conventions 2003)

!need all
   3.176146697
1021.3285546211


# Sofa 2009
!msgprefix Calculate mean longitude of Earth (IERS Conventions 2003)

!need all
  1.753470314
628.3075849991


# Sofa 2009
!msgprefix Calculate mean longitude of the Moon minus that of the ascending node (IERS Conventions 2003)

!need all
     335779.526232
 1739527262.8478
-        12.7512
-         0.001037
          0.00000417


# Sofa 2009
!msgprefix Calculate mean longitude of the Moon's ascending node (IERS Conventions 2003)

!need all
  450160.398036
-6962890.5431
       7.4722
       0.007702
-      0.00005939


# Sofa 2009
!msgprefix Calculate mean anomaly of the Sun (MHB2000)

!need all
   1287104.79305
 129596581.0481
-        0.5532
         0.000136
-        0.00001149


# Sofa 2009
!msgprefix Calculate mean elongation of the Moon from the Sun (MHB2000)

!need all
    1072260.70369
 1602961601.2090
-         6.3706
          0.006593
-         0.00003169


# Sofa 2009
!msgprefix Calculate mean anomaly of the Moon (MHB2000)

!need all
   2.35555598
8328.6914269554


# Sofa 2009
!msgprefix Calculate mean longitude of the Moon minus that of the ascending node (MHB2000)
# Sofa 2009
   1.627905234
8433.466158131


# Sofa 2009
!msgprefix Calculate mean elongation of the Moon from the Sun (MHB2000)

!need all
   5.198466741
7771.3771468121


# Sofa 2009
!msgprefix Calculate mean longitude of the ascending node of the Moon (MHB2000)

!need all
  2.18243920
-33.757045


# Sofa 2009
!msgprefix Calculate mean longitude of Mars (IERS Conventions 2003)

!need all
  6.203480913
334.0612426700


# Sofa 2009
!msgprefix Calculate mean longitude of Jupiter (IERS Conventions 2003)

!need all
 0.599546497
52.9690962641


# Sofa 2009
!msgprefix Calculate mean longitude of Saturn (IERS Conventions 2003)

!need all
 0.874016757
21.3299104960


# Sofa 2009
!msgprefix Calculate mean longitude of Uranus (IERS Conventions 2003)

!need all
5.481293872
7.4781598567


# Sofa 2009
!msgprefix Calculate mean longitude of Neptune (IERS Conventions 2003)

!need all
5.311886287
3.8133035638


# Sofa 2009
!msgprefix Calculate mean longitude of Neptune (MHB2000)

!need all
5.321159000
3.8127774000

# Sofa 2009
!msgprefix Greenwich Calculate mean Sidereal Time, IAU 2000
    0.014506
 4612.15739966
    1.39667721
-   0.00009344
    0.00001882


# Sofa 2009
!msgprefix Greenwich mean sidereal time, IAU 2006

!need all
    0.01450
 4612.156534
    1.3915817
-   0.00000044
-   0.000029956
-   0.0000000368


# Sofa 2009
!msgprefix Universal Time to Greenwich mean sidereal time (IAU 1982 model)

!need all
   24110.54841
#       2.0
 8640184.812866
       0.093104
-      6.2e-6


# Expressions for the precession quantities based upon the IAU (1976) system of astronomical constants
# Lieske J.H. and Lederle T. and Fricke W. and Morando B.
# Astronomy and astrophysics, 1977
!msgprefix Obliquity to ecliptic updated by Julian days since J2000.0 (Lieske 1977)

!need all
 84381.448
-   46.8159
-    0.00059
     0.001813


# Sofa 2009
# Hilton, J. et al., 2006, Celest.Mech.Dyn.Astron. 94, 351
!msgprefix Obliquity to ecliptic updated by Julian days since J2000.0 (Hilton 2006)

!need all
 84381.406
-   46.836769
-    0.0001831
     0.00200340
-    0.000000576
-    0.0000000434


# Sofa 2009
# Hilton, J. et al., 2006, Celest.Mech.Dyn.Astron. 94, 351
!msgprefix The gamma_bar Fukushima-Williams angle (IAU 2006)

!need all
- 0.052928
 10.556378
  0.4932044
- 0.00031238
- 0.000002788
  0.0000000260


# Sofa 2009
# Hilton, J. et al., 2006, Celest.Mech.Dyn.Astron. 94, 351
!msgprefix The phi_bar Fukushima-Williams angle (IAU 2006)

!need all
 84381.412819
-   46.811016
     0.0511268
     0.00053289
-    0.000000440
-    0.0000000176


# Sofa 2009
# Hilton, J. et al., 2006, Celest.Mech.Dyn.Astron. 94, 351
!msgprefix The psi_bar Fukushima-Williams angle (IAU 2006)

!need all
-   0.041775
 5038.481484
    1.5584175
-   0.00018522
-   0.000026452
-   0.0000000148


!msgpostfix Geometric mean longitude of the Sun, in degrees\n
!need all
  280.46646
36000.76983
    0.0003032


!msgpostfix Apparent longitude of the Sun, in degrees\n
!need all
  125.04
-1934.136
    0.00569
-   0.00478


!msgpostfix Geometric mean anomaly of the Sun, in degrees\n
!need all
  357.52911
35999.05029
-   0.0001537


!msgpostfix Equation for center of the Sun, in degrees\n
!need all
 1.914602
 0.004817
 0.000014
 0.019993
-0.000101
 0.000289


# Lieske J.H. and Lederle T. and Fricke W. and Morando B.
# Astronomy and astrophysics, 1977

!msgprefix Euler angles representing the precession of the mean celestial ephemeris

!need all
 2306.2181
    1.39656
-   0.000139

# zeta
 0.30188
-0.000344
 0.017998

# z
1.09468
0.000066
0.018203

# theta
 2004.3109
-   0.85330
-   0.000217
-   0.42665
-   0.000217
-   0.041833


# Expressions for the celestial intermediate pole and celestial
# ephemeris origin consistent with the IAU 2000A precession-nutation model
# Capitaine, N., Wallace, P.T. & Chapront, J., 2003,
# Astron.Astrophys., 412, 567
!msgprefix X,Y coordinates of celestial intermediate pole (IAU 2006)

!need all
-   0.016617
 2004.191898
-   0.4297829
-   0.19861834
    0.000007578
    0.0000059285

- 0.006951
- 0.025896
-22.4072747
  0.00190059
  0.001112526
  0.0000001358


# Fourier series representation of the position of the sun
# J. W. Spencer, May 1971, Search 2 (5), 172
# D =     0.006918 - 0.399912 cos T + 0.070257 sin T - 0.006758 cos 2*T
#         + 0.000907 sin 2*T - 0.002697 cos 3*T + 0.001480 sin 3*T
!msgprefix Fourier series representation of the position of the sun at given time

!need all
 0.006918
-0.399912
 0.070257
-0.006758
 0.000907
-0.002697
 0.001480

