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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 32 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2016289156571559 | 3.2158e-08 | |
| a | 2.144806299960712 | 6.3518e-09 | au |
| q | 1.712351331404997 | 7.1176e-08 | au |
| i | 6.675054556398381 | 3.2039e-06 | deg |
| node | 188.4884564739562 | 2.872e-05 | deg |
| peri | 108.5616296681276 | 3.0348e-05 | deg |
| M | 78.70059482818687 | 7.4436e-06 | deg |
| tp | 2458749.683527346476
(2019-Sep-23.18352735) | 2.3728e-05 | TDB |
| period | 1147.309373612634
3.14 | 5.0966e-06
1.395e-08 | d
yr |
| n | .3137776159419289 | 1.3939e-09 | deg/d |
| Q | 2.577261268516426 | 7.6325e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.3 |
|
n/a |
MPO267727 |
|
| diameter |
diameter |
3.367 |
km |
0.033 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
3.143 |
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:
[Pravec, P.; Wolf, M.; Sarounova, L. (2013) http://www.asu.cas.cz/~ppravec/neo.htm]
[Aznar, A.M. (2017) Minor Planet Bull. 44, 60-63.] |
| geometric albedo |
albedo |
0.366 |
|
0.066 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| SMASSII spectral type |
spec_B |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) |
|
| 4923 Clarke (1981 EO27) Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
[ 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 |
| 2150-Jul-04 10:32 |
< 00:01 |
Juno |
0.011048243072012 |
0.0110379945963222 |
0.0110584916129737 |
7.65677097165733 |
7.65677082784136 |
2506515.938768731 |
0.322134883196399 |
512.676207045288 |
21.968183304394 |
4.74939406352128 |
7002.45584568284 |
T |
32 |
CATAB v2.0f-lin.ifort 2020-Dec-18 02:19:58 |
2020-Dec-18 02:19 |
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