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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 39 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1206203596797625 | 3.6372e-08 | |
a | 2.695223627205938 | 8.466e-09 | au |
q | 2.370124783874964 | 9.8538e-08 | au |
i | 6.414358263282383 | 4.7581e-06 | deg |
node | 307.7251516489441 | 3.5157e-05 | deg |
peri | 125.6747981306284 | 4.0519e-05 | deg |
M | 49.05219195580827 | 1.961e-05 | deg |
tp | 2458780.285174818512 (2019-Oct-23.78517482) | 8.7838e-05 | TDB |
period | 1616.183373349709 4.42 | 7.6149e-06 2.085e-08 | d yr |
n | .2227470013219244 | 1.0495e-09 | deg/d |
Q | 3.020322470536912 | 9.4872e-09 | au |
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| | Orbit Determination Parameters
Additional Information
|
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Orbital Elements at Epoch 2455835.5 (2011-Oct-01.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1184866595258062 | 3.6299e-08 | |
q | 2.37582528527606 | 9.8024e-08 | au |
tp | 2455545.261279592161 (2010-Dec-14.76127959) | 8.8595e-05 | TDB |
node | 307.8966441358933 | 3.5103e-05 | deg |
peri | 125.1514005859986 | 4.0718e-05 | deg |
i | 6.419292942722273 | 4.7607e-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 |
1.317630779647919E-15 |
-3.547962883713104E-15 |
6.062791643655446E-13 |
-2.384536044072965E-15 |
1.469218983681428E-13 |
-5.110284102297398E-16 |
q |
-3.547962883713104E-15 |
9.6087630186791E-15 |
-1.619553266101265E-12 |
4.691191464254631E-15 |
-3.906586720727327E-13 |
1.581032661778786E-15 |
tp |
6.062791643655446E-13 |
-1.619553266101265E-12 |
7.849159508899591E-9 |
-1.073358399485765E-11 |
1.842048380149887E-9 |
3.052799669360415E-13 |
node |
-2.384536044072965E-15 |
4.691191464254631E-15 |
-1.073358399485765E-11 |
1.232191524185272E-9 |
-1.22655673655558E-9 |
4.961379818609231E-12 |
peri |
1.469218983681428E-13 |
-3.906586720727327E-13 |
1.842048380149887E-9 |
-1.22655673655558E-9 |
1.657975555585196E-9 |
-4.840274330588296E-12 |
i |
-5.110284102297398E-16 |
1.581032661778786E-15 |
3.052799669360415E-13 |
4.961379818609231E-12 |
-4.840274330588296E-12 |
2.266443478786957E-11 |
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
8.9 |
|
n/a |
MPO332813 |
|
diameter |
diameter |
45.209 |
km |
1.883 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
rotation period |
rot_per |
9.873 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Barucci, M.A.; Di Martino, M. (1984) Astron. Astrophys. Suppl. Ser. 57, 103-106.] [Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Pilcher, F. (2016) Minor Planet Bull. 43, 222-224.] |
geometric albedo |
albedo |
0.261 |
|
0.064 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
B-V |
BV |
0.850 |
|
0.019 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=3.22, mean=9.07, max.=20.32) deg. |
U-B |
UB |
0.395 |
|
0.023 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=3.22, mean=9.07, max.=20.32) deg. |
Tholen spectral type |
spec_T |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 2 color indices; used ground-based radiometric albedo |
SMASSII spectral type |
spec_B |
S |
|
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) |
|
123 Brunhild (A872 OB) Discovered 1872-Jul-31 by Peters, C. H. F. at Clinton |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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