IAU Minor Planet Center

(7) Iris

Orbital Elements

    (7) Iris
Epoch 2000 Feb. 26.0 TT = JDT 2451600.5  (M-c)          Bowell
M  68.24825              (2000.0)            P               Q
n   0.26753046     Peri.  145.08589     +0.70498644     -0.70286105
a   2.3853598      Node   259.87388     +0.62681452     +0.67999870
e   0.2303762      Incl.    5.52412     +0.33180970     +0.20877766
P   3.68           H    5.51          G   0.15
From 3313 observations at 57 oppositions, 1850-1993, mean residual 0".57.

These orbital elements are also available in forms suitable for loading into a number of popular planetarium-type software programs.

Ephemeris

Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
1999 12 08    09 24.38   +10 28.9    1.476    2.094   115.2    25.2     9.1
1999 12 13    09 25.41   +10 02.1    1.436    2.107   119.9    23.9     9.0
1999 12 18    09 25.58   +09 39.0    1.398    2.120   124.8    22.4     8.9
1999 12 23    09 24.86   +09 20.0    1.364    2.132   129.9    20.7     8.9
1999 12 28    09 23.27   +09 05.3    1.332    2.145   135.2    18.9     8.8
2000 01 02    09 20.81   +08 55.1    1.305    2.158   140.7    16.8     8.7
2000 01 07    09 17.54   +08 49.5    1.283    2.171   146.4    14.5     8.6
2000 01 12    09 13.55   +08 48.5    1.265    2.184   152.2    12.1     8.4
2000 01 17    09 08.94   +08 51.8    1.254    2.197   158.0     9.6     8.3
2000 01 22    09 03.88   +08 59.0    1.248    2.210   163.7     7.2     8.2
2000 01 27    08 58.54   +09 09.7    1.249    2.223   168.9     4.9     8.1
2000 02 01    08 53.10   +09 23.2    1.256    2.236   172.0     3.5     8.1
2000 02 06    08 47.75   +09 38.8    1.271    2.249   170.7     4.0     8.2
2000 02 11    08 42.68   +09 55.7    1.292    2.263   166.3     5.9     8.3
2000 02 16    08 38.08   +10 13.2    1.319    2.276   160.9     8.2     8.5
2000 02 21    08 34.06   +10 30.6    1.353    2.289   155.3    10.4     8.6
2000 02 26    08 30.73   +10 47.3    1.393    2.302   149.7    12.5     8.8
2000 03 02    08 28.16   +11 02.9    1.438    2.315   144.2    14.5     8.9
2000 03 07    08 26.38   +11 17.0    1.488    2.328   138.8    16.3     9.1
2000 03 12    08 25.42   +11 29.1    1.542    2.341   133.7    17.9     9.2
2000 03 17    08 25.25   +11 39.2    1.601    2.354   128.7    19.3     9.4
2000 03 22    08 25.84   +11 47.1    1.662    2.367   123.9    20.4     9.5
2000 03 27    08 27.15   +11 52.6    1.727    2.380   119.3    21.4     9.6
2000 04 01    08 29.14   +11 55.7    1.794    2.393   114.9    22.3     9.7
2000 04 06    08 31.75   +11 56.3    1.864    2.406   110.6    22.9     9.9
2000 04 11    08 34.94   +11 54.5    1.935    2.419   106.5    23.4    10.0
2000 04 16    08 38.64   +11 50.2    2.007    2.431   102.6    23.8    10.1
2000 04 21    08 42.81   +11 43.4    2.080    2.444    98.7    24.0    10.2
2000 04 26    08 47.40   +11 34.3    2.154    2.456    95.0    24.1    10.3

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