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85051 (6641 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2085051
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1892868752347092 3.9271e-08  
a 2.593420410520621 1.1468e-08 au
q 2.102519964843256 1.0224e-07 au
i 12.75459285645608 4.5004e-06 deg
node 7.361857590112856 2.0043e-05 deg
peri 2.582223010836352 2.3934e-05 deg
M 98.88078211859026 1.5313e-05 deg
tp 2458581.496929329688
(2019-Apr-07.99692933)
6.3155e-05 TDB
period 1525.484550277978
4.18
1.0119e-05
2.77e-08
d
yr
n .2359905906188298 1.5654e-09 deg/d
Q 3.084320856197986 1.3639e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1051  
   data-arc span      21680 days (59.36 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53954  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:25:34  

Additional Information
 Earth MOID = 1.10208 au 
 Jupiter MOID = 2.37939 au 
 T_jup = 3.359 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO366209  
diameter diameter 3.826 km 0.198 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.932 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Masiero, J.; Jedicke, R.; Durecy, J.; Gwyn, S.; et al. (2009) Icarus 204, 145-171.]
geometric albedo albedo 0.159   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85051 (6641 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 6641 P-L = 2000 EN136 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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