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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1419965516744931 4.349e-08  
a 2.721285445796034 1.7236e-08 au
q 2.334872296371011 1.2156e-07 au
i 3.504679427045609 4.9088e-06 deg
node 356.0694771214934 6.9955e-05 deg
peri 194.8947834285757 7.1551e-05 deg
M 281.0699425471408 1.6707e-05 deg
tp 2459560.000495608274
(2021-Dec-11.50049561)
7.7564e-05 TDB
period 1639.681796713178
4.49
1.5578e-05
4.265e-08
d
yr
n .2195547945471112 2.0859e-09 deg/d
Q 3.107698595221056 1.9684e-08 au
  Orbit Determination Parameters
   # obs. used (total)      574  
   data-arc span      8029 days (21.98 yr)  
   first obs. used      1999-01-26  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51655  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:15:38  

Additional Information
 Earth MOID = 1.33463 au 
 Jupiter MOID = 1.85214 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 15.74   n/a MPCxxxxx  
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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