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JPL Small-Body Database Browser
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85020 (2057 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2085020
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .164009781429809 5.246e-08  
a 2.31698434216064 1.134e-08 au
q 1.936976246626583 1.2167e-07 au
i 4.708292038122109 5.6334e-06 deg
node 330.5173513763682 7.0441e-05 deg
peri 44.98108779528724 7.2839e-05 deg
M 214.9159142317521 2.0404e-05 deg
tp 2459119.658957732122
(2020-Sep-27.15895773)
7.5083e-05 TDB
period 1288.199348632261
3.53
9.4575e-06
2.589e-08
d
yr
n .279459852531542 2.0517e-09 deg/d
Q 2.696992437694695 1.32e-08 au
  Orbit Determination Parameters
   # obs. used (total)      393  
   data-arc span      21377 days (58.53 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57885  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:53:34  

Additional Information
 Earth MOID = .940192 au 
 Jupiter MOID = 2.77948 au 
 T_jup = 3.558 
[ 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 16.6   n/a MPO267961  

85020 (2057 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
 2057 P-L = 2004 BM97 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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