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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 88 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .2796272135037835 | 2.832e-08 | |
a | 2.744848630821072 | 6.6542e-09 | au |
q | 1.9773142566949 | 7.6599e-08 | au |
i | 10.59382689636362 | 3.9657e-06 | deg |
node | 89.6488423466586 | 1.4254e-05 | deg |
peri | 315.9180173671362 | 1.5845e-05 | deg |
M | 253.1310941269716 | 8.6001e-06 | deg |
tp | 2459493.588516664945 (2021-Oct-06.08851666) | 4.1074e-05 | TDB |
period | 1661.024453738519 4.55 | 6.0401e-06 1.654e-08 | d yr |
n | .2167337146600924 | 7.8812e-10 | deg/d |
Q | 3.512383004947245 | 8.5149e-09 | au |
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| | Orbit Determination Parameters
Additional Information
|
[ hide covariance matrix ]
Orbital Elements at Epoch 2454790.5 (2008-Nov-20.0) TDB
Reference: JPL 88 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .2818864940667571 | 2.8601e-08 | |
q | 1.968440642878243 | 7.763e-08 | au |
tp | 2454524.190439047706 (2008-Feb-27.69043905) | 3.021e-05 | TDB |
node | 89.6994136237991 | 1.4278e-05 | deg |
peri | 316.1921358626265 | 1.5813e-05 | deg |
i | 10.59287286882208 | 3.9641e-06 | deg |
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| | Orbit Determination Parameters
Additional Information
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Orbit Covariance (6×6)
|
|
e |
q |
tp |
node |
peri |
i |
e |
8.179941106722786E-16 |
-2.216177146026913E-15 |
4.558054288448697E-13 |
-1.145133761748289E-15 |
9.894149059726957E-14 |
-1.74954354143201E-15 |
q |
-2.216177146026913E-15 |
6.02645691454986E-15 |
-1.199508317077348E-12 |
3.887057223326967E-15 |
-2.621003879666354E-13 |
5.012729754984768E-15 |
tp |
4.558054288448697E-13 |
-1.199508317077348E-12 |
9.126717098932582E-10 |
-3.923654884298464E-12 |
2.120735494403136E-10 |
-2.310455682294125E-12 |
node |
-1.145133761748289E-15 |
3.887057223326967E-15 |
-3.923654884298464E-12 |
2.038745889722669E-10 |
-2.005364116133482E-10 |
5.470200587955729E-12 |
peri |
9.894149059726957E-14 |
-2.621003879666354E-13 |
2.120735494403136E-10 |
-2.005364116133482E-10 |
2.500556598467179E-10 |
-5.748264812330317E-12 |
i |
-1.74954354143201E-15 |
5.012729754984768E-15 |
-2.310455682294125E-12 |
5.470200587955729E-12 |
-5.748264812330317E-12 |
1.571370086550983E-11 |
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
8.5 |
|
n/a |
MPO492755 |
IRAS observations used: 36 |
magnitude slope |
G |
-0.06 |
|
n/a |
PDS3 (MPC 17259) |
Fit |
diameter |
diameter |
107.227 |
km |
0.494 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
rotation period |
rot_per |
28.479 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Wang, X.-b.; Gu, S.-h.; Li, X.-j. (2010) Earth, Moon, and Planets 106, 97-104.] [Pilcher, F. (2015) Minor Planet Bull. 42, 280-281.] |
geometric albedo |
albedo |
0.073 |
|
0.014 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
B-V |
BV |
0.712 |
|
0.015 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=5; phase (min.=8.37, mean=16.47, max.=24.99) deg. |
U-B |
UB |
0.341 |
|
0.030 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=4; phase (min.=8.37, mean=14.34, max.=17.58) deg. |
Tholen spectral type |
spec_T |
C |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 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) |
|
521 Brixia (A904 AE) Discovered 1904-Jan-10 by Dugan, R. S. at Heidelberg |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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