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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 35 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1341140628067793 | 2.7136e-08 | |
a | 2.647707828584291 | 1.0299e-08 | au |
q | 2.292612974567536 | 6.9805e-08 | au |
i | 13.55066463636675 | 4.219e-06 | deg |
node | 132.1566515647455 | 1.2543e-05 | deg |
peri | 112.6164572371842 | 2.1219e-05 | deg |
M | 82.12351108034829 | 1.5991e-05 | deg |
tp | 2458841.521429202054 (2019-Dec-24.02142920) | 6.9804e-05 | TDB |
period | 1573.633223752717 4.31 | 9.182e-06 2.514e-08 | d yr |
n | .2287699538660546 | 1.3349e-09 | deg/d |
Q | 3.002802682601046 | 1.1681e-08 | au |
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| | 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 |
13.00 |
|
n/a |
E2021B10 |
|
diameter |
diameter |
7.546 |
km |
0.117 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
rotation period |
rot_per |
7.6897 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] [Clark, M. (2016) Minor Planet Bull. 43, 2-5.] |
geometric albedo |
albedo |
0.200 |
|
0.037 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
|
19918 (1977 PB) Discovered 1977-Aug-06 by Lagerkvist, C.-I. at Mount Stromlo |
Reference: 20010109/Numbers.arc | Last Updated: 2004-04-19 |
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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 |
1913-Jan-22 01:08 |
00:01 |
Amphi |
0.0119120827790755 |
0.0119089758669764 |
0.0119152071189037 |
7.130193471928 |
7.13019340424431 |
2419789.547309497 |
1.20730788983613 |
761.843556468714 |
41.7666674113438 |
-78.6566529097893 |
41826.0210032406 |
T |
35 |
CATAB v2.0f-lin.ifort 2021-Feb-24 02:45:24 |
2021-Feb-24 02:45 |
1990-Aug-13 02:18 |
< 00:01 |
Amphi |
0.0166836052937203 |
0.0166805889642546 |
0.0166866216287499 |
7.02901394021264 |
7.0290138911909 |
2448116.595676028 |
0.410461420320886 |
151.212151179722 |
40.6410977268693 |
6.21726159455779 |
17700.9845311555 |
T |
35 |
CATAB v2.0f-lin.ifort 2021-Feb-24 02:45:24 |
2021-Feb-24 02:45 |
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Alternate Designations
1977 PB = 1990 KE2 = 1990 SO18 = 1998 KV60 |
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