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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 39 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1955210049420031 | 9.9364e-09 | |
a | 2.204406364376728 | 3.7502e-09 | au |
q | 1.773398616713243 | 2.2101e-08 | au |
i | 1.534241174481343 | 3.0251e-07 | deg |
node | 195.6695986610737 | 1.3403e-05 | deg |
peri | 170.5797301715265 | 1.5363e-05 | deg |
M | 297.5429325149666 | 4.3459e-06 | deg |
tp | 2459407.902983570155 (2021-Jul-12.40298357) | 1.4747e-05 | TDB |
period | 1195.462372663392 3.27 | 3.0506e-06 8.352e-09 | d yr |
n | .301138712712429 | 7.6846e-10 | deg/d |
Q | 2.635414112040213 | 4.4834e-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 |
12.73 |
|
n/a |
E2021B10 |
|
diameter |
diameter |
7.975 |
km |
0.109 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
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rotation period |
rot_per |
66.22 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Pravec, P.; Wolf, M.; Sarounova, L. (2011) http://www.asu.cas.cz/~ppravec/neo.htm] [Stephens, R.D. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html] [Casalnuovo, G.B. (2016) Minor Planet Bull. 43, 112-115.] |
geometric albedo |
albedo |
0.253 |
|
0.017 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
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1536 Pielinen (1939 SE) Discovered 1939-Sep-18 by Vaisala, Y. at Turku |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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Alternate Designations
1939 SE = 1929 RZ = 1931 ED = 1934 CW = 1939 TP = 1939 UK = 1952 RW = A903 SF = A916 RA |
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