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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1366241532063632 4.559e-08  
a 2.666078625006463 1.7763e-08 au
q 2.30182789048337 1.1772e-07 au
i 12.72032236314564 4.2921e-06 deg
node 135.7397616988255 2.617e-05 deg
peri 33.19898542548665 3.2522e-05 deg
M 214.4443682646163 2.0524e-05 deg
tp 2459243.386593284837
(2021-Jan-28.88659329)
9.3724e-05 TDB
period 1590.039291666102
4.35
1.589e-05
4.35e-08
d
yr
n .2264094993670116 2.2626e-09 deg/d
Q 3.030329359529556 2.0189e-08 au
  Orbit Determination Parameters
   # obs. used (total)      562  
   data-arc span      7595 days (20.79 yr)  
   first obs. used      1999-01-14  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55952  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:15:28  

Additional Information
 Earth MOID = 1.32099 au 
 Jupiter MOID = 1.9832 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 15.2   n/a MPO229505  
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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