[ show orbit diagram ]
Orbital Elements at Epoch 2453373.5 (2005-Jan-03.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .3366622059716981 | 3.1132e-07 | |
| a | 4.140887475241521 | 8.5933e-07 | au |
| q | 2.746807163146135 | 1.6524e-06 | au |
| i | 8.787089092328669 | 3.4574e-05 | deg |
| node | 4.461100199142281 | 0.00014167 | deg |
| peri | 30.16639360979399 | 0.00024614 | deg |
| M | 11.09970713614999 | 9.8742e-05 | deg |
| tp | 2453278.604069214231
(2004-Sep-30.10406921) | 0.00083773 | TDB |
| period | 3077.787068058297
8.43 | 0.00095807
2.623e-06 | d
yr |
| n | .1169671559595952 | 3.641e-08 | deg/d |
| Q | 5.534967787336907 | 1.1486e-06 | au |
|
Additional Model Parameters
| Parameter | Value | Uncertainty (1-sigma) |
| A1 [EST] | -3.422548508644308E-8 | 6.427E-9 |
| A2 [EST] | -1.539398941494141E-9 | 7.081E-11 |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| comet total magnitude |
M1 |
4.3 |
|
01. |
19 |
2 parameter fit from 67 observations, autocmod 2.8 |
| comet total magnitude slope |
K1 |
30.75 |
|
n/a |
19 |
autocmod 2.8 |
| comet nuclear magnitude |
M2 |
16.4 |
|
1. |
19 |
from 31 observations, autocmod 2.8 |
| comet nuclear magnitude slope |
K2 |
5. |
|
n/a |
19 |
autocmod 2.8 |
| comet nuclear phase coefficient |
PC |
0.03 |
|
n/a |
19 |
autocmod 2.8 |
| diameter |
diameter |
3.0 |
km |
n/a |
Lamy,P.L.,Toth,I.,Fernandez,Y.R.,Weaver,H.A. (2004) Comets II, pp. 223-264 |
|
|
| 120P/Mueller 1 Discovered 1987-Oct-18 by Mueller, Jean at Palomar Mountain Observatory, California |
| Reference: comet.dis | Last Updated: 2003-08-29 |
|
[ show close-approach data ]
Alternate Designations
Perihelion
Year (est.) | New-Style
Desig | Roman
Numeral | Year/
Letter | | 1996.3 | 120P/1995 O2 | | |
| 1987.9 | 120P/1987 U2 | 1987 XXXI | 1987a1 |
|
|
|
