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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 42 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1401412041500832 | 3.4134e-08 | |
a | 3.225104377876697 | 1.7369e-08 | au |
q | 2.773134366851352 | 1.0582e-07 | au |
i | 7.046857902017315 | 4.3061e-06 | deg |
node | 359.3554643915419 | 3.3338e-05 | deg |
peri | 86.89367531007008 | 3.7168e-05 | deg |
M | 233.7027949976666 | 1.7302e-05 | deg |
tp | 2459942.673302566528 (2022-Dec-29.17330257) | 0.00010361 | TDB |
period | 2115.505160379547 5.79 | 1.709e-05 4.679e-08 | d yr |
n | .1701721209393843 | 1.3747e-09 | deg/d |
Q | 3.677074388902043 | 1.9803e-08 | au |
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| | Orbit Determination Parameters
Additional Information
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
9.94 |
|
n/a |
E2021B10 |
IRAS observations used: 17 |
diameter |
diameter |
28.916 |
km |
0.176 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
rotation period |
rot_per |
32.6 |
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: [Binzel, R.P. (1987) Icarus 72, 135-208.] |
geometric albedo |
albedo |
0.213 |
|
0.028 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
B-V |
BV |
0.871 |
|
0.019 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=4; phase (min.=3.86, mean=8.56, max.=14.61) deg. |
U-B |
UB |
0.412 |
|
0.074 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=4.41, mean=10.12, max.=14.61) deg. |
Tholen spectral type |
spec_T |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 2 color indices |
|
645 Agrippina (A907 RP) Discovered 1907-Sep-13 by Metcalf, J. H. at Taunton |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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