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JPL Small-Body Database Browser
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580 Selene (A905 YB)
Classification: Outer Main-belt Asteroid          SPK-ID: 2000580
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08572336039551785 3.5415e-08  
a 3.230869126988435 1.5294e-08 au
q 2.953908168424853 1.1733e-07 au
i 3.670773578819621 3.9796e-06 deg
node 98.91140536618704 6.2136e-05 deg
peri 337.8546802776423 6.6466e-05 deg
M 211.3558056406841 2.4165e-05 deg
tp 2459476.336272038401
(2021-Sep-18.83627204)
0.00014363 TDB
period 2121.179769535101
5.81
1.5062e-05
4.124e-08
d
yr
n .1697168741520202 1.2051e-09 deg/d
Q 3.507830085552016 1.6605e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2673  
   data-arc span      41591 days (113.87 yr)  
   first obs. used      1905-12-17  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42412  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:55:03  

Additional Information
 Earth MOID = 1.96954 au 
 Jupiter MOID = 1.70124 au 
 T_jup = 3.177 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.2   n/a MPO435700  
diameter diameter 48.204 km 0.236 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 9.47 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Hanus, J. (2018) Astron. Astrophys. 620, A91.]
geometric albedo albedo 0.082   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

580 Selene (A905 YB)          Discovered 1905-Dec-17 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A905 YB = 1950 RQ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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