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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1406008807844106 4.0856e-08  
a 2.588059228297045 1.5025e-08 au
q 2.224175821276258 1.0783e-07 au
i 5.228865667752716 3.9622e-06 deg
node 106.3649090852932 5.1748e-05 deg
peri 107.0228162529732 5.6163e-05 deg
M 217.2698528011592 2.6861e-05 deg
tp 2459999.438416940137
(2023-Feb-23.93841694)
0.00011728 TDB
period 1520.756717192065
4.16
1.3243e-05
3.626e-08
d
yr
n .2367242543992877 2.0615e-09 deg/d
Q 2.951942635317831 1.7138e-08 au
  Orbit Determination Parameters
   # obs. used (total)      916  
   data-arc span      8265 days (22.63 yr)  
   first obs. used      1998-05-22  
   last obs. used      2021-01-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52606  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:14:01  

Additional Information
 Earth MOID = 1.22514 au 
 Jupiter MOID = 2.02707 au 
 T_jup = 3.401 
[ 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 15.11   n/a MPCxxxxx  
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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