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85894 (1999 CH48)
Classification: Main-belt Asteroid          SPK-ID: 2085894
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1421385645711227 4.6262e-08  
a 2.72075252102375 1.8099e-08 au
q 2.334028663132171 1.2737e-07 au
i 3.50475939598712 5.2603e-06 deg
node 356.0757476650516 7.0217e-05 deg
peri 194.9577019439015 7.1815e-05 deg
M 237.0919110119702 1.668e-05 deg
tp 2459560.141552471331
(2021-Dec-11.64155247)
7.8389e-05 TDB
period 1639.20015800832
4.49
1.6357e-05
4.478e-08
d
yr
n .2196193053308459 2.1915e-09 deg/d
Q 3.107476378915329 2.0672e-08 au
  Orbit Determination Parameters
   # obs. used (total)      524  
   data-arc span      7600 days (20.81 yr)  
   first obs. used      1999-01-26  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5375  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:03:56  

Additional Information
 Earth MOID = 1.3344 au 
 Jupiter MOID = 1.85343 au 
 T_jup = 3.341 
[ 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 15.7   n/a MPO453290  
diameter diameter 4.560 km 0.645 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85894 (1999 CH48)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1999 CH48 = 2002 XS93 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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