[ 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 20 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .08891161089805905 | 3.9167e-08 | |
a | 2.636384196786537 | 1.2276e-08 | au |
q | 2.401979030904061 | 1.0524e-07 | au |
i | 2.776550253668702 | 4.2985e-06 | deg |
node | 58.01221594173243 | 9.8879e-05 | deg |
peri | 354.673031017297 | 0.00010293 | deg |
M | 54.87696094293555 | 2.8308e-05 | deg |
tp | 2458962.158851361441 (2020-Apr-22.65885136) | 0.00012262 | TDB |
period | 1563.548929014205 4.28 | 1.0921e-05 2.99e-08 | d yr |
n | .2302454328864367 | 1.6082e-09 | deg/d |
Q | 2.870789362669014 | 1.3368e-08 | au |
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| | Orbit Determination Parameters
Additional Information
|
[ hide covariance matrix ]
Orbital Elements at Epoch 2457112.5 (2015-Mar-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .08812638546916284 | 3.956e-08 | |
q | 2.404105689009197 | 1.0628e-07 | au |
tp | 2457391.774578808366 (2016-Jan-04.27457881) | 0.00012192 | TDB |
node | 58.03319588001096 | 9.889e-05 | deg |
peri | 353.1612092128368 | 0.000103 | deg |
i | 2.777771111127464 | 4.2988e-06 | deg |
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| | Orbit Determination Parameters
Additional Information
|
Orbit Covariance (6×6)
|
|
e |
q |
tp |
node |
peri |
i |
e |
1.565026443883909E-15 |
-4.181302467287478E-15 |
-1.794848180146987E-12 |
-1.356065376207965E-14 |
-4.275672491554164E-13 |
-1.499553691681755E-16 |
q |
-4.181302467287478E-15 |
1.12953463847737E-14 |
4.90516601010518E-12 |
3.672389903369862E-14 |
1.162657015564276E-12 |
4.494729409443879E-16 |
tp |
-1.794848180146987E-12 |
4.90516601010518E-12 |
1.486475443689401E-8 |
4.185344678034366E-11 |
3.541859123190128E-9 |
-7.262318155147039E-13 |
node |
-1.356065376207965E-14 |
3.672389903369862E-14 |
4.185344678034366E-11 |
9.779266576875405E-9 |
-9.757446882589925E-9 |
-1.261528194053464E-10 |
peri |
-4.275672491554164E-13 |
1.162657015564276E-12 |
3.541859123190128E-9 |
-9.757446882589925E-9 |
1.060957329756982E-8 |
1.258247350973415E-10 |
i |
-1.499553691681755E-16 |
4.494729409443879E-16 |
-7.262318155147039E-13 |
-1.261528194053464E-10 |
1.258247350973415E-10 |
1.847985802512935E-11 |
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
15.9 |
|
n/a |
MPO412659 |
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|
79824 (1998 VT55) Discovered 1998-Nov-11 by LINEAR at Socorro |
Reference: 20040504/Numbers.arc | Last Updated: 2004-07-16 |
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[ 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 |
1910-Jan-20 11:41 |
00:05 |
Hebe |
0.0477282326880965 |
0.04772113910854 |
0.0477353349511702 |
4.77921840698676 |
4.77921837973307 |
2418691.986839800 |
5.24775862496455 |
1079.23578422299 |
34.5950882177088 |
70.9498860296374 |
195009.233798869 |
T |
20 |
CATAB v2.0f-lin.ifort 2021-Feb-24 07:20:24 |
2021-Feb-24 07:20 |
2015-Mar-09 14:02 |
00:02 |
Amphi |
0.0485990724996318 |
0.0485975862410887 |
0.0486005588603893 |
1.79499947653039 |
1.7949994106311 |
2457091.084706383 |
1.76434187548022 |
144.860975017678 |
33.685150801953 |
62.1422881997215 |
191769.751575521 |
T |
20 |
CATAB v2.0f-lin.ifort 2021-Feb-24 07:20:24 |
2021-Feb-24 07:20 |
2022-Nov-22 06:35 |
00:01 |
Hygie |
0.0065462319339855 |
0.0065427920297276 |
0.00654967202587147 |
2.99852381079962 |
2.99852184244348 |
2459905.774578329 |
1.48489847600473 |
180.350141747398 |
47.6926623951085 |
-19.24938817541 |
8461.41834703023 |
T |
20 |
CATAB v2.0f-lin.ifort 2021-Feb-24 07:20:24 |
2021-Feb-24 07:20 |
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