(13kB) Bangert.gif

Differences in apparent right ascension (Da cosd) and apparent declination (d) of the Moon computed using the new IAU2000B Precession-Nutation model and the IAU1980 Theory of Nutation. The calculations were made using the DE405/LE405 ephemerides, which are currently used in the Astron. Almanac
(Bangert 2002, Proc. IERS Workshop)







(17kB) Capitaine1.gif

Earth orientation parameters (precession, nutation, GST) in the old FK5 reference system
(Nicole Capitaine 2002, Proc. IERS Workshop)







(11kB) Capitaine2.gif

Earth orientation parameters (E, d, q) in the GCRS
(Nicole Capitaine 2002, Proc. IERS Workshop)







(21kB) Seidelman&Kov2002.gif

The two paradigms
(Seidelmann & Kovalevsky, 2002, A&A 392, 341–351)







(21kB) Lambert.gif

The Non-Rotating Origin with respect to the ITRF
(S. Lambert & C. Bizouard 2002, Proc. IERS Workshop,
IERS Techn. Note No. 29, p. 103)







(15kB) dXdY.gif       
(8kB) dpsi-deps.gif

Corrections [in mas] to the nutation angles Dysine and De (lower, taken from the IERS web site) and differences [in m] in x and y coordinates of the EXPLORER detector position transformed to ICRF with the classical (no corrections for the pole offsets) and new IAU procedures (top panel)







(26kB) eopc04-xyt.gif
Recent polar motion (modified figure from the IERS web site)