(7) Iris
Orbital Elements
The following orbital elements are taken from MPC 24084:
(7) Iris
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5 (M-c) Bowell
M 96.88676 (2000.0) P Q
n 0.26757634 Peri. 145.35888 +0.70352735 -0.70432004
a 2.3850871 Node 259.72037 +0.62830780 +0.67875618
e 0.2314470 Incl. 5.52743 +0.33208216 +0.20790220
P 3.68 H 5.51 G 0.15
From 3313 observations at 57 oppositions, 1850-1993, mean residual 0".57.
An explanation of the orbital
elements is available.These orbital elements are also available in forms suitable for loading into a number of popular planetarium-type software programs.
Ephemeris
The following ephemeris is at intervals of five days. A daily ephemeris covering the same time interval is also available.Personalized ephemerides for this object (and others) can be generated using the MPES.
Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2008 01 21 13 26.85 -15 27.3 2.484 2.740 94.4 21.0 10.7 2008 01 26 13 29.46 -15 51.5 2.422 2.749 98.7 20.7 10.6 2008 01 31 13 31.55 -16 12.8 2.361 2.757 103.1 20.4 10.6 2008 02 05 13 33.08 -16 31.0 2.301 2.765 107.7 19.9 10.5 2008 02 10 13 34.02 -16 45.9 2.242 2.773 112.4 19.2 10.5 2008 02 15 13 34.34 -16 57.2 2.186 2.781 117.3 18.4 10.4 2008 02 20 13 34.02 -17 04.7 2.132 2.789 122.3 17.4 10.3 2008 02 25 13 33.05 -17 08.2 2.081 2.796 127.5 16.3 10.2 2008 03 01 13 31.43 -17 07.5 2.034 2.803 132.8 15.0 10.1 2008 03 06 13 29.18 -17 02.4 1.991 2.810 138.2 13.6 10.0 2008 03 11 13 26.33 -16 52.7 1.954 2.817 143.8 12.0 9.9 2008 03 16 13 22.94 -16 38.4 1.921 2.824 149.5 10.3 9.8 2008 03 21 13 19.07 -16 19.8 1.895 2.830 155.2 8.5 9.7 2008 03 26 13 14.84 -15 57.0 1.875 2.837 160.8 6.6 9.6 2008 03 31 13 10.33 -15 30.5 1.862 2.843 166.3 4.8 9.5 2008 04 05 13 05.66 -15 00.8 1.857 2.849 170.8 3.2 9.4 2008 04 10 13 00.98 -14 28.6 1.858 2.855 172.6 2.6 9.4 2008 04 15 12 56.40 -13 54.8 1.867 2.860 170.0 3.5 9.5 2008 04 20 12 52.04 -13 20.3 1.883 2.865 165.2 5.1 9.6 2008 04 25 12 48.02 -12 45.9 1.906 2.871 159.8 7.0 9.7 2008 04 30 12 44.41 -12 12.5 1.935 2.876 154.2 8.8 9.8 2008 05 05 12 41.28 -11 40.8 1.971 2.880 148.7 10.5 9.9 2008 05 10 12 38.70 -11 11.6 2.012 2.885 143.2 12.1 10.1 2008 05 15 12 36.70 -10 45.3 2.059 2.889 137.9 13.6 10.2 2008 05 20 12 35.29 -10 22.3 2.111 2.894 132.7 14.9 10.3 2008 05 25 12 34.47 -10 02.9 2.166 2.898 127.6 16.1 10.4 2008 05 30 12 34.23 -09 47.2 2.226 2.902 122.7 17.1 10.5 2008 06 04 12 34.56 -09 35.2 2.288 2.905 117.9 18.0 10.6 2008 06 09 12 35.44 -09 27.0 2.353 2.909 113.3 18.7 10.6 2008 06 14 12 36.83 -09 22.5 2.420 2.912 108.9 19.3 10.7 2008 06 19 12 38.71 -09 21.5 2.489 2.915 104.5 19.7 10.8 2008 06 24 12 41.05 -09 23.8 2.559 2.918 100.3 20.0 10.9 2008 06 29 12 43.81 -09 29.2 2.629 2.920 96.2 20.2 10.9
