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85891 (1999 CH45)
Classification: Main-belt Asteroid          SPK-ID: 2085891
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .136112105042175 3.9775e-08  
a 2.666079718426939 1.2017e-08 au
q 2.303193995741599 1.0548e-07 au
i 12.72118239944573 3.5175e-06 deg
node 135.7298183632224 2.1157e-05 deg
peri 33.05838566329705 2.619e-05 deg
M 34.7440826706741 1.4476e-05 deg
tp 2459243.043081708851
(2021-Jan-28.54308171)
6.3927e-05 TDB
period 1590.040269834009
4.35
1.075e-05
2.943e-08
d
yr
n .2264093600834286 1.5307e-09 deg/d
Q 3.028965441112279 1.3652e-08 au
  Orbit Determination Parameters
   # obs. used (total)      935  
   data-arc span      8184 days (22.41 yr)  
   first obs. used      1999-01-14  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49943  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:27:17  

Additional Information
 Earth MOID = 1.32259 au 
 Jupiter MOID = 1.98156 au 
 T_jup = 3.335 
[ 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 15.28   n/a MPO637177  
diameter diameter 6.201 km 0.514 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85891 (1999 CH45)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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