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85039 (4541 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2085039
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2238227120211856 4.0407e-08  
a 2.793148986384497 1.5855e-08 au
q 2.167978805172693 1.1205e-07 au
i 8.303375841729085 7.1349e-06 deg
node 9.090795229212956 2.8747e-05 deg
peri 67.52781215061226 3.3486e-05 deg
M 244.721086237498 1.621e-05 deg
tp 2459546.492848195673
(2021-Nov-27.99284820)
7.7847e-05 TDB
period 1705.05965865874
4.67
1.4518e-05
3.975e-08
d
yr
n .2111363072675056 1.7977e-09 deg/d
Q 3.418319167596301 1.9404e-08 au
  Orbit Determination Parameters
   # obs. used (total)      581  
   data-arc span      21455 days (58.74 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54683  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:25:33  

Additional Information
 Earth MOID = 1.19881 au 
 Jupiter MOID = 1.95723 au 
 T_jup = 3.276 
[ 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 15.2   n/a MPO439612  

85039 (4541 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

[ show close-approach data ]
Alternate Designations
 4541 P-L = 1999 CO90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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