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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 | .0307496457682606 | 3.5657e-08 | |
a | 2.611486544344594 | 7.2344e-09 | au |
q | 2.53118425817742 | 9.3184e-08 | au |
i | 3.435856999123073 | 4.2753e-06 | deg |
node | 341.9708161615698 | 6.755e-05 | deg |
peri | 131.6899539754641 | 9.9907e-05 | deg |
M | 134.0017408396152 | 7.2906e-05 | deg |
tp | 2458426.729711812301 (2018-Nov-04.22971181) | 0.00031199 | TDB |
period | 1541.45239049392 4.22 | 6.4053e-06 1.754e-08 | d yr |
n | .2335459740567447 | 9.7046e-10 | deg/d |
Q | 2.691788830511769 | 7.4569e-09 | au |
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| | Orbit Determination Parameters
Additional Information
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Orbital Elements at Epoch 2455979.5 (2012-Feb-22.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .03106306954154927 | 3.5846e-08 | |
q | 2.53031102503548 | 9.3853e-08 | au |
tp | 2455355.646161203090 (2010-Jun-08.14616120) | 0.00030689 | TDB |
node | 342.0455467752168 | 6.7624e-05 | deg |
peri | 134.2835711097306 | 9.9117e-05 | deg |
i | 3.434585888004379 | 4.2722e-06 | deg |
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| | Orbit Determination Parameters
Additional Information
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Orbit Covariance (6×6)
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|
e |
q |
tp |
node |
peri |
i |
e |
1.28494327475559E-15 |
-3.35444745627209E-15 |
6.641340604769113E-13 |
-2.883464295044829E-15 |
1.561638621548164E-13 |
2.389881993351707E-17 |
q |
-3.35444745627209E-15 |
8.808323777231497E-15 |
-1.787436421019181E-12 |
8.456750543957102E-15 |
-4.186475715357957E-13 |
1.544142245870736E-18 |
tp |
6.641340604769113E-13 |
-1.787436421019181E-12 |
9.41829774765601E-8 |
-5.688538671332527E-11 |
2.225703968468038E-8 |
-8.973542263086671E-13 |
node |
-2.883464295044829E-15 |
8.456750543957102E-15 |
-5.688538671332527E-11 |
4.573064970754815E-9 |
-4.577559403856105E-9 |
2.20194277082321E-11 |
peri |
1.561638621548164E-13 |
-4.186475715357957E-13 |
2.225703968468038E-8 |
-4.577559403856105E-9 |
9.82421270209093E-9 |
-2.218867163108505E-11 |
i |
2.389881993351707E-17 |
1.544142245870736E-18 |
-8.973542263086671E-13 |
2.20194277082321E-11 |
-2.218867163108505E-11 |
1.82518261406286E-11 |
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
9.3 |
|
n/a |
MPO473763 |
|
magnitude slope |
G |
0.51 |
|
n/a |
PDS3 (MPC 17258) |
Fit |
diameter |
diameter |
24.957 |
km |
0.152 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
rotation period |
rot_per |
6.835 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Harris, A.W.; Young, J.W. (1983) Icarus 54, 59-109.] [Bel'skaya, I.N.; Shevchenko, V.G.; Kiselev, N.; Krugly, Yu.N.; et al. (2003) Icarus 166, 276-284.] [Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.] [Shevchenko, V.G.; Belksaya, I.N.; Muinon, K.; Penttila, A.; et al. (2016) Plan. Space Sci. 123, 101-116.] |
geometric albedo |
albedo |
1.000 |
|
0.000 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
B-V |
BV |
0.700 |
|
0.041 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=4; phase (min.=1.66, mean=2.20, max.=2.97) deg. |
U-B |
UB |
0.217 |
|
0.050 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=4; phase (min.=1.66, mean=3.73, max.=9.08) deg. |
Tholen spectral type |
spec_T |
E |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
SMASSII spectral type |
spec_B |
Xc |
|
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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214 Aschera (A880 DB) Discovered 1880-Feb-29 by Palisa, J. at Pola |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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Alternate Designations
A880 DB = 1947 BP = 1948 JE = 1949 QG2 = 1949 SX1 = 1950 XH = 1953 OO = A903 SE |
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