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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 105 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .2221125571393416 | 3.4856e-08 | |
a | 2.35823527582459 | 5.8725e-09 | au |
q | 1.83444160837499 | 8.2957e-08 | au |
i | 8.057572907158914 | 3.7684e-06 | deg |
node | 233.7120222837635 | 2.6554e-05 | deg |
peri | 58.0638689782285 | 2.7629e-05 | deg |
M | 272.1467965518962 | 8.8132e-06 | deg |
tp | 2458923.300519837596 (2020-Mar-14.80051984) | 3.2849e-05 | TDB |
period | 1322.754123703417 3.62 | 4.9409e-06 1.353e-08 | d yr |
n | .2721594236970362 | 1.0166e-09 | deg/d |
Q | 2.88202894327419 | 7.1768e-09 | 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 |
10.05 |
|
n/a |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 20 |
magnitude slope |
G |
0.11 |
|
n/a |
PDS3 (MPC 17258) |
Fit |
diameter |
diameter |
52.95 |
km |
2.6 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 20 |
rotation period |
rot_per |
8.545 |
h |
n/a |
LCDB (Rev. 2019-January); Warner et al., 2009 |
Published Reference List: [Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.] [Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] |
geometric albedo |
albedo |
0.0602 |
|
0.006 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 20 |
B-V |
BV |
0.698 |
|
0.017 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=5; phase (min.=5.27, mean=10.83, max.=21.41) deg. |
U-B |
UB |
0.380 |
|
0.052 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=5; phase (min.=5.27, mean=10.83, max.=21.41) deg. |
Tholen spectral type |
spec_T |
CX |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 2 color indices |
SMASSII spectral type |
spec_B |
Ch |
|
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) |
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284 Amalia Discovered 1889-May-29 by Charlois, A. at Nice |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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