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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 110 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .02960704630694269 | 3.4757e-08 | |
a | 3.41331879437758 | 1.6019e-08 | au |
q | 3.312260506772085 | 1.1571e-07 | au |
i | 6.689400960499268 | 4.2274e-06 | deg |
node | 242.6418846439799 | 3.4918e-05 | deg |
peri | 235.4154932634464 | 8.6969e-05 | deg |
M | 79.19033946329785 | 7.8038e-05 | deg |
tp | 2458493.820411883094 (2019-Jan-10.32041188) | 0.00050029 | TDB |
period | 2303.369993844071 6.31 | 1.6214e-05 4.439e-08 | d yr |
n | .1562927367127847 | 1.1002e-09 | deg/d |
Q | 3.514377081983074 | 1.6493e-08 | au |
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| | Orbit Determination Parameters
Additional Information
|
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Orbital Elements at Epoch 2456061.5 (2012-May-14.0) TDB
Reference: JPL 110 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .03199187807952787 | 3.48e-08 | |
q | 3.305027475200884 | 1.1599e-07 | au |
tp | 2456178.515414255561 (2012-Sep-08.01541426) | 0.00046668 | TDB |
node | 242.6771115255243 | 3.4905e-05 | deg |
peri | 233.8296349317943 | 8.1488e-05 | deg |
i | 6.690079392592365 | 4.2284e-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 |
1.211074785449958E-15 |
-4.00382259754563E-15 |
-1.380667329916932E-12 |
2.943200632732957E-15 |
-2.233922499530806E-13 |
1.823303606477741E-15 |
q |
-4.00382259754563E-15 |
1.345446030496913E-14 |
2.875296382167125E-12 |
6.643171426038825E-15 |
4.493764661920924E-13 |
-5.675017367563486E-15 |
tp |
-1.380667329916932E-12 |
2.875296382167125E-12 |
2.177924541842479E-7 |
-1.381840393154951E-10 |
3.440234597451643E-8 |
-8.774670181718375E-12 |
node |
2.943200632732957E-15 |
6.643171426038825E-15 |
-1.381840393154951E-10 |
1.218387479164529E-9 |
-1.229642409944297E-9 |
-1.549610526618729E-11 |
peri |
-2.233922499530806E-13 |
4.493764661920924E-13 |
3.440234597451643E-8 |
-1.229642409944297E-9 |
6.640370870569333E-9 |
1.402976349584501E-11 |
i |
1.823303606477741E-15 |
-5.675017367563486E-15 |
-8.774670181718375E-12 |
-1.549610526618729E-11 |
1.402976349584501E-11 |
1.787897460209654E-11 |
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
8.4 |
|
n/a |
MPO384747 |
|
diameter |
diameter |
138.699 |
km |
3.446 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
rotation period |
rot_per |
11.04 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Zappala, V.; Di Martino, M.; Cellino, A.; Farinella, P.; et al. (1989) Icarus 82, 354-368.] [Lagerkvist, C.-I.; Erikson, A.; Lahulla, F.; Di Martino, M.; et al. (2001) Icarus 149, 190-197.] [Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
geometric albedo |
albedo |
0.044 |
|
0.004 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
B-V |
BV |
0.691 |
|
0.018 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=4.23, mean=5.51, max.=6.93) deg. |
U-B |
UB |
0.229 |
|
0.038 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=4.23, mean=5.51, max.=6.93) deg. |
Tholen spectral type |
spec_T |
P |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
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420 Bertholda (A896 RC) Discovered 1896-Sep-07 by Wolf, M. at Heidelberg |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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