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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1341642873465314 | 3.5222e-08 | |
| a | 2.664834637356389 | 1.1791e-08 | au |
| q | 2.307308997339117 | 9.1641e-08 | au |
| i | 14.25151441777002 | 3.6483e-06 | deg |
| node | 133.7172166561985 | 1.6746e-05 | deg |
| peri | 116.3188253954807 | 2.2745e-05 | deg |
| M | 137.32208281047 | 1.7158e-05 | deg |
| tp | 2458594.403599280100
(2019-Apr-20.90359928) | 7.4501e-05 | TDB |
| period | 1588.926557138762
4.35 | 1.0546e-05
2.887e-08 | d
yr |
| n | .2265680552588064 | 1.5037e-09 | deg/d |
| Q | 3.022360277373661 | 1.3373e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
12.9 |
|
n/a |
MPO347686 |
|
| diameter |
diameter |
7.671 |
km |
0.138 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| geometric albedo |
albedo |
0.166 |
|
0.017 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
|
| 21089 Mochizuki | Discovered 1992 Feb. 8 by T. Seki at Geisei. |
| Seiji Mochizuki (b. 1942) was born in Tokyo and worked for an optical company from 1967 to 1979. The 0.6-m reflector at Geisei observatory was designed by him. Even now it is still used for astronomical observation. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20040306/MPCPages.arc | Last Updated: 2004-03-08 |
|
[ hide close-approach data ]
Close-Approach Data ...sorted by Date/Time (TDB)
|
| Date/Time (TDB) |
Time Uncertainty
(days_HH:MM) |
Body |
Nominal Distance (au) |
Minimum Distance (au) |
Maximum Distance (au) |
V-relative (km/s) |
V-infinity (km/s) |
JD (TDB) |
Time Uncertainty (minutes) |
Semi-major axis (km) |
Semi-minor axis (km) |
range-LOV angle (deg) |
N-sigma |
BP |
Orbit Ref. |
Reference |
Modified |
| 2050-Apr-01 18:55 |
< 00:01 |
Iris |
0.0334111602690939 |
0.0334036163302953 |
0.0334187042960589 |
8.62672053512293 |
8.62672051517785 |
2469898.287881975 |
0.806442233967011 |
385.876163009468 |
42.6627569809008 |
-12.977311357275 |
29175.0053597485 |
T |
38 |
CATAB v2.0f-lin.ifort 2021-Feb-24 02:50:55 |
2021-Feb-24 02:50 |
| 2137-Aug-12 15:54 |
00:02 |
Amphi |
0.0466828788234113 |
0.0466663960745197 |
0.0466993662432246 |
7.43032920764924 |
7.43032919107601 |
2501807.162729879 |
2.2605417619872 |
1103.96225309162 |
36.9194241107641 |
41.9100927310998 |
126417.904595883 |
T |
38 |
CATAB v2.0f-lin.ifort 2021-Feb-24 02:50:55 |
2021-Feb-24 02:50 |
|
Alternate Designations
| 1992 CQ = 1992 CF4 = 2000 AL173 |
|
|
