[ hide orbit diagram ]
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 31 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .08564059878710906 | 1.9778e-08 | |
| a | 1.942670872475776 | 5.446e-09 | au |
| q | 1.776299375710675 | 3.945e-08 | au |
| i | 19.26417766044311 | 7.5727e-07 | deg |
| node | 235.7786269542344 | 2.7782e-06 | deg |
| peri | 100.5757748511162 | 1.6198e-05 | deg |
| M | 246.0277700440047 | 1.9097e-05 | deg |
| tp | 2459513.607748082557
(2021-Oct-26.10774808) | 5.3019e-05 | TDB |
| period | 989.0022275886085
2.71 | 4.1588e-06
1.139e-08 | d
yr |
| n | .3640032246213987 | 1.5307e-09 | deg/d |
| Q | 2.109042369240877 | 5.9124e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.59 |
|
n/a |
E2021B10 |
|
| rotation period |
rot_per |
3.540 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Warner, B.D. (2017) Minor Planet Bull. 44, 12-19.] |
|
| 7959 Alysecherri | Discovered 1994 Aug. 2 by C. W. Hergenrother at the Catalina Station. |
| Alyse Cherri Hergenrother (b. 1984), maiden name Alyse Cherri Smith, is the wife of the discoverer. She has worked for the state of Arizona to prevent the abuse and neglect of Arizona's children. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20081113/MPCPages.arc | Last Updated: 2008-11-17 |
|
[ 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 |
| 2187-Jun-20 08:07 |
00:02 |
Iris |
0.0342283902997751 |
0.0342181581817877 |
0.0342386314632948 |
6.49090748649204 |
6.49090746061699 |
2520015.838215632 |
1.92549613588083 |
1015.69051667022 |
23.0473052880156 |
-59.8612193365213 |
192111.116629119 |
T |
31 |
CATAB v2.0f-lin.ifort 2021-Mar-16 20:17:12 |
2021-Mar-16 20:17 |
|
|
