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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 | .1701173561388928 | 1.2179e-08 | |
| a | 2.270200437867042 | 5.9121e-09 | au |
| q | 1.883999941471744 | 2.8945e-08 | au |
| i | 5.495966914084033 | 7.6252e-07 | deg |
| node | 127.2561548912423 | 9.1754e-06 | deg |
| peri | 183.0727040579457 | 1.1434e-05 | deg |
| M | 29.34749380784144 | 8.4307e-06 | deg |
| tp | 2459098.649480052758
(2020-Sep-06.14948005) | 2.9142e-05 | TDB |
| period | 1249.380523634708
3.42 | 4.8805e-06
1.336e-08 | d
yr |
| n | .2881427981226129 | 1.1256e-09 | deg/d |
| Q | 2.65640093426234 | 6.9179e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
13.40 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
5.344 |
km |
0.040 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
9.385 |
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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.] |
| geometric albedo |
albedo |
0.199 |
|
0.019 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
|
| 2682 Soromundi (1979 MF4) Discovered 1979-Jun-25 by Helin, E. F. and 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 |
| 2015-Sep-30 00:45 |
< 00:01 |
Hebe |
0.0354497666383326 |
0.0354488218690113 |
0.0354507114080804 |
5.1170682935177 |
5.117068259247 |
2457295.531317599 |
0.259932687685325 |
47.9083023477044 |
33.7201671559935 |
-14.9698120820704 |
114348.832174751 |
T |
37 |
CATAB v2.0f-lin.ifort 2021-Apr-12 14:08:12 |
2021-Apr-12 14:08 |
| 2197-Jan-22 07:29 |
< 00:01 |
Hebe |
0.0169067860191775 |
0.0169056894022175 |
0.0169078874380093 |
4.89162174658205 |
4.89162167141221 |
2523519.811748757 |
0.357280346368348 |
567.87142827075 |
33.2604247719591 |
-85.5974367518477 |
75784.7073116212 |
T |
37 |
CATAB v2.0f-lin.ifort 2021-Apr-12 14:08:12 |
2021-Apr-12 14:08 |
|
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