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85167 (1989 RS2)
Classification: Main-belt Asteroid          SPK-ID: 2085167
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2290560266226963 3.6225e-08  
a 2.428315658228784 9.4109e-09 au
q 1.872095322169221 8.5887e-08 au
i 8.85462717506692 5.0133e-06 deg
node 353.1666421063307 2.8591e-05 deg
peri 35.27629918931613 3.1426e-05 deg
M 119.0736371777297 1.3954e-05 deg
tp 2458939.338913562579
(2020-Mar-30.83891356)
5.2335e-05 TDB
period 1382.153052667921
3.78
8.0348e-06
2.2e-08
d
yr
n .2604631949443694 1.5141e-09 deg/d
Q 2.984535994288347 1.1567e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1311  
   data-arc span      11604 days (31.77 yr)  
   first obs. used      1989-09-01  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47026  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:25:30  

Additional Information
 Earth MOID = .882816 au 
 Jupiter MOID = 2.51017 au 
 T_jup = 3.457 
[ 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 14.89   n/a MPCxxxxx  
diameter diameter 5.523 km 0.182 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85167 (1989 RS2)          Discovered 1989-Sep-07 by Mrkos, A. at Klet
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1989 RS2 = 1993 UU2 = 2001 XX253 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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