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31485 (1999 CM51)
Classification: Main-belt Asteroid          SPK-ID: 2031485
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2037209470821648 3.5157e-08  
a 2.654888979595169 1.3612e-08 au
q 2.114032482274039 9.1308e-08 au
i 14.6402143583651 5.2764e-06 deg
node 346.9261917879992 1.5965e-05 deg
peri 48.55450964282374 2.084e-05 deg
M 69.95588810652971 1.2764e-05 deg
tp 2458693.463683177534
(2019-Jul-28.96368318)
5.5817e-05 TDB
period 1580.03960849967
4.33
1.2152e-05
3.327e-08
d
yr
n .2278423895599926 1.7523e-09 deg/d
Q 3.195745476916299 1.6386e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1695  
   data-arc span      14553 days (39.84 yr)  
   first obs. used      1980-12-31  
   last obs. used      2020-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4664  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:34:10  

Additional Information
 Earth MOID = 1.14671 au 
 Jupiter MOID = 2.39005 au 
 T_jup = 3.313 
[ 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 13.2   n/a MPO502392  
diameter diameter 9.786 km 0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.001 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pligge, Z.; Hall, B.; Ditteon, R. (2011) Minor Planet Bull. 38, 137-138.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
geometric albedo albedo 0.140   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

31485 (1999 CM51)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 CM51 = 1980 YJ = 1984 UA4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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