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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 37 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1827721178591667 | 1.2456e-08 | |
| a | 2.539332621994547 | 1.248e-08 | au |
| q | 2.075213420723733 | 3.6827e-08 | au |
| i | 9.769056186106379 | 1.1886e-06 | deg |
| node | 83.51239161424408 | 5.0425e-06 | deg |
| peri | 182.91871266499 | 7.2308e-06 | deg |
| M | 300.3847691519196 | 8.3003e-06 | deg |
| tp | 2459445.255547477270
(2021-Aug-18.75554748) | 3.4758e-05 | TDB |
| period | 1478.011505421425
4.05 | 1.0896e-05
2.983e-08 | d
yr |
| n | .2435704990654679 | 1.7956e-09 | deg/d |
| Q | 3.003451823265361 | 1.4761e-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 |
13.82 |
|
n/a |
E2021B10 |
|
| rotation period |
rot_per |
76.6286 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
|
| 16972 Neish | Discovered 1998 Nov. 21 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. |
| Catherine D. Neish (b. 1981) is a professor at the University of Western Ontario who studies Titan, the Moon and Venus using orbital radar. Previously known by the moniker Katie Dot, she is an avid scuba diver, a champion for social justice, and mother to Penelope. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: MPC batch dated 2017-12-03 | Last Updated: 2017-12-07 |
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Alternate Designations
| 1998 WK11 = 1994 XS2 = 1999 XZ164 |
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