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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 97 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .2070283485679166 | 7.7525e-09 | |
a | 2.618740748890696 | 4.0982e-09 | au |
q | 2.076587176320346 | 2.0206e-08 | au |
i | 8.701927594168012 | 2.9323e-07 | deg |
node | 333.3960698062845 | 2.2303e-06 | deg |
peri | 152.7424204685958 | 8.8508e-06 | deg |
M | 97.81783124346434 | 6.1248e-06 | deg |
tp | 2458779.916031134817 (2019-Oct-23.41603113) | 2.6295e-05 | TDB |
period | 1547.87963366937 4.24 | 3.6336e-06 9.948e-09 | d yr |
n | .2325762237381415 | 5.4596e-10 | deg/d |
Q | 3.160894321461046 | 4.9467e-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 |
8.39 |
|
n/a |
E2021B10 |
IRAS observations used: 26 |
magnitude slope |
G |
0.08 |
|
n/a |
PDS3 (MPC 17257) |
Fit |
diameter |
diameter |
120.60 |
km |
2.7 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 26 |
rotation period |
rot_per |
7.2991 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.] [Licchelli, D. (2006) Minor Planet Bull. 33, 11-13.] [Fleenor, M.L. (2007) Minor Planet Bull. 34, 66-67.] [Benishek, V.; Protitch-Benishek, V. (2008) Minor Planet Bull. 35, 28-30.] [Fauerbach, M.; Marks, S.A.; Lucas, M.P. (2008) Minor Planet Bull. 35, 44-46.] [Franco, L.; Marchini, A.; Saya, L.-F.; Galli, G.; et al. (2020) Minor Planet Bull. 47, 242-246.] [Pilcher, F. (2020) Minor Planet Bull. 47, 344-346.] |
geometric albedo |
albedo |
0.0706 |
|
0.003 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 26 |
B-V |
BV |
0.713 |
|
0.030 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=5; phase (min.=1.69, mean=8.62, max.=16.99) deg. |
U-B |
UB |
0.380 |
|
0.010 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=5; phase (min.=1.69, mean=9.58, max.=16.99) 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) |
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78 Diana (A863 EA) Discovered 1863-Mar-15 by Luther, R. at Dusseldorf |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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