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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .03585099833350271 | 3.7111e-08 | |
| a | 3.007983854891122 | 1.5711e-08 | au |
| q | 2.900144630722217 | 1.1016e-07 | au |
| i | 10.55642456912273 | 4.0341e-06 | deg |
| node | 38.06097442010076 | 2.2358e-05 | deg |
| peri | 90.96755787323019 | 6.4154e-05 | deg |
| M | 176.9194602220119 | 6.1366e-05 | deg |
| tp | 2458064.049592210715
(2017-Nov-06.54959221) | 0.00032266 | TDB |
| period | 1905.511956576716
5.22 | 1.4929e-05
4.087e-08 | d
yr |
| n | .1889256054035714 | 1.4802e-09 | deg/d |
| Q | 3.115823079060026 | 1.6274e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
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[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
12.3 |
|
n/a |
MPO358715 |
|
| diameter |
diameter |
13.394 |
km |
0.198 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| rotation period |
rot_per |
4.301035 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.] |
| geometric albedo |
albedo |
0.090 |
|
0.011 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 8661 Ratzinger | Discovered 1990 Oct. 14 by L. D. Schmadel and F. Borngen at Tautenburg. |
| Joseph Cardinal Ratzinger (b. 1927), German professor of theology, is one of the most authoritative voices in the Vatican. Under his supervision, the Vatican opened its archives in 1998 to enable researchers to investigate judicial errors against Galileo and other medieval scientists. The name was proposed by the first discoverer. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20000523/MPCPages.arc | Last Updated: 2013-03-29 |
|
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Alternate Designations
| 1990 TA13 = 1969 US = 1974 TM1 = 1992 CB1 |
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