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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 41 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1339449095600044 | 3.348e-08 | |
a | 2.556339825410473 | 1.0679e-08 | au |
q | 2.21393111869123 | 8.8414e-08 | au |
i | 15.13093936246617 | 4.5258e-06 | deg |
node | 21.67654259872578 | 1.0264e-05 | deg |
peri | 303.8257261707608 | 2.0382e-05 | deg |
M | 2.272028195906101 | 1.6214e-05 | deg |
tp | 2458991.078121016906 (2020-May-21.57812102) | 6.7257e-05 | TDB |
period | 1492.884833042792 4.09 | 9.3545e-06 2.561e-08 | d yr |
n | .2411438525142287 | 1.511e-09 | deg/d |
Q | 2.898748532129717 | 1.2109e-08 | au |
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| | Orbit Determination Parameters
Additional Information
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Orbital Elements at Epoch 2457464.5 (2016-Mar-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .134227848636801 | 3.361e-08 | |
q | 2.213170657567416 | 8.8956e-08 | au |
tp | 2457500.462371143122 (2016-Apr-21.96237114) | 7.0794e-05 | TDB |
node | 21.73009071880031 | 1.0255e-05 | deg |
peri | 304.3198301713188 | 2.0315e-05 | deg |
i | 15.13867615258424 | 4.5274e-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 |
1.129653914337788E-15 |
-2.974669229776644E-15 |
1.372597816645387E-12 |
-9.622265197837496E-15 |
3.238353082795248E-13 |
4.608459246023775E-16 |
q |
-2.974669229776644E-15 |
7.913238340476512E-15 |
-3.817294320564829E-12 |
2.55907154107176E-14 |
-9.019359141379654E-13 |
-5.251010573303787E-16 |
tp |
1.372597816645387E-12 |
-3.817294320564829E-12 |
5.011773983319175E-9 |
-2.230722959326538E-11 |
1.245600113694286E-9 |
-4.356055196116697E-12 |
node |
-9.622265197837496E-15 |
2.55907154107176E-14 |
-2.230722959326538E-11 |
1.051747506021784E-10 |
-1.064973016015753E-10 |
-4.362029101608636E-12 |
peri |
3.238353082795248E-13 |
-9.019359141379654E-13 |
1.245600113694286E-9 |
-1.064973016015753E-10 |
4.126909315049569E-10 |
3.157639995115431E-12 |
i |
4.608459246023775E-16 |
-5.251010573303787E-16 |
-4.356055196116697E-12 |
-4.362029101608636E-12 |
3.157639995115431E-12 |
2.049741830965037E-11 |
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
12.3 |
|
n/a |
MPO384788 |
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diameter |
diameter |
8.564 |
km |
0.137 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
rotation period |
rot_per |
8.09 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Kim, M.-J.; Choi, Y.-J.; Moon, H.-K.; Byun, Y.-I.; et al. (2014) Astron. J. 147, A56.] [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
geometric albedo |
albedo |
0.264 |
|
0.062 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
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3970 Herran | Discovered 1979 June 28 by C. Torres at Cerro El Roble. |
Jose Antonio Ruiz de la Herran Villagomez (b. 1925), currently technical advisor of the Museum Universum in Mexico City, has been active in astronomy both as a professional and an amateur. He was involved in the design and installation of Mexico's largest telescopes and is widely known for his public outreach. |
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
Reference: 20031110/MPCPages.arc | Last Updated: 2003-11-12 |
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Alternate Designations
1979 ME9 = 1963 UT = 1971 ST1 = 1979 RH = 1982 FQ3 |
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