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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2034933253899494 3.5573e-08  
a 2.654377162179066 1.4194e-08 au
q 2.114229126608111 9.3189e-08 au
i 14.64020178878279 5.6606e-06 deg
node 346.9356861646684 1.598e-05 deg
peri 48.56643650581986 2.113e-05 deg
M 338.8030388464387 1.3599e-05 deg
tp 2458693.506537851997
(2019-Jul-29.00653785)
5.9783e-05 TDB
period 1579.582723398698
4.32
1.267e-05
3.469e-08
d
yr
n .2279082916438896 1.828e-09 deg/d
Q 3.194525197750021 1.7082e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1481  
   data-arc span      14220 days (38.93 yr)  
   first obs. used      1980-12-31  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48577  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 02:16:19  

Additional Information
 Earth MOID = 1.14622 au 
 Jupiter MOID = 2.3881 au 
 T_jup = 3.313 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456649.5 (2013-Dec-23.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2021379283751085 3.5596e-08  
q 2.118740642455997 9.3221e-08 au
tp 2457108.946536698404
(2015-Mar-27.44653670)
6.0042e-05 TDB
node 347.0548418054709 1.5932e-05 deg
peri 47.70679077108276 2.1281e-05 deg
i 14.66579574401497 5.6681e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1481  
   data-arc span      14220 days (38.93 yr)  
   first obs. used      1980-12-31  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48577  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 02:16:19  

Additional Information
 Jupiter MOID = 2.3881 au 
 T_jup = 3.313 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.267054407607202E-15 -3.294396578408988E-15 -5.494189257163327E-13 -5.340902270597255E-15 -1.512360967662083E-13 4.185282219766263E-16
q -3.294396578408988E-15 8.690217861419045E-15 1.444795863303242E-12 1.442468670519018E-14 3.873452534916804E-13 -1.325761642600819E-15
tp -5.494189257163327E-13 1.444795863303242E-12 3.605025358122183E-9 9.552995743360486E-12 8.583727292860513E-10 -7.181187639768846E-12
node -5.340902270597255E-15 1.442468670519018E-14 9.552995743360486E-12 2.538206290805546E-10 -2.428624737231348E-10 -2.197751075645381E-11
peri -1.512360967662083E-13 3.873452534916804E-13 8.583727292860513E-10 -2.428624737231348E-10 4.52887546567901E-10 1.966594490912107E-11
i 4.185282219766263E-16 -1.325761642600819E-15 -7.181187639768846E-12 -2.197751075645381E-11 1.966594490912107E-11 3.212715848907437E-11

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. 2019-January); 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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