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85040 (4617 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2085040
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1970057795188112 5.0685e-08  
a 2.315338656700127 9.0314e-09 au
q 1.859203559786882 1.1735e-07 au
i 6.051715391158441 5.1557e-06 deg
node 5.475178283077899 4.5064e-05 deg
peri 30.62900458907405 4.668e-05 deg
M 316.3622994757706 1.3392e-05 deg
tp 2459156.483825703148
(2020-Nov-02.98382570)
4.8395e-05 TDB
period 1286.827137510475
3.52
7.5292e-06
2.061e-08
d
yr
n .279757855197602 1.6369e-09 deg/d
Q 2.771473753613373 1.0811e-08 au
  Orbit Determination Parameters
   # obs. used (total)      515  
   data-arc span      21860 days (59.85 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52687  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:54:23  

Additional Information
 Earth MOID = .868557 au 
 Jupiter MOID = 2.6756 au 
 T_jup = 3.548 
[ 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 16.2   n/a MPO436370  

85040 (4617 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
 4617 P-L = 1999 XN130 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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