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85630 (1998 KP31)
Classification: Main-belt Asteroid          SPK-ID: 2085630
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1405527543431384 4.4942e-08  
a 2.589664634865965 1.6597e-08 au
q 2.225680137610536 1.2076e-07 au
i 5.227679266408212 5.9716e-06 deg
node 106.365329516237 5.2802e-05 deg
peri 107.4716064442703 5.8377e-05 deg
M 28.42076397932267 2.7878e-05 deg
tp 2458480.329750430173
(2018-Dec-27.82975043)
0.00011725 TDB
period 1522.171954160421
4.17
1.4633e-05
4.006e-08
d
yr
n .2365041603979387 2.2736e-09 deg/d
Q 2.953649132121394 1.893e-08 au
  Orbit Determination Parameters
   # obs. used (total)      755  
   data-arc span      7286 days (19.95 yr)  
   first obs. used      1998-05-22  
   last obs. used      2018-05-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54448  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 03:06:20  

Additional Information
 Earth MOID = 1.22605 au 
 Jupiter MOID = 2.02886 au 
 T_jup = 3.400 
[ 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 15.1   n/a MPO439615  
diameter diameter 2.550 km 0.298 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.358   0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85630 (1998 KP31)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 KP31 = 2002 JN24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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