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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2288356374401252 3.8122e-08  
a 2.428830994532212 1.0753e-08 au
q 1.8730279056641 9.1636e-08 au
i 8.852333174905727 5.4137e-06 deg
node 353.1938122420938 3.1399e-05 deg
peri 35.12564765834939 3.4e-05 deg
M 271.8648974937337 1.3516e-05 deg
tp 2458938.986057558724
(2020-Mar-30.48605756)
5.2874e-05 TDB
period 1382.593056069538
3.79
9.1818e-06
2.514e-08
d
yr
n .2603803038208616 1.7292e-09 deg/d
Q 2.984634083400324 1.3214e-08 au
  Orbit Determination Parameters
   # obs. used (total)      939  
   data-arc span      11013 days (30.15 yr)  
   first obs. used      1989-09-01  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51315  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:09:23  

Additional Information
 Earth MOID = .883652 au 
 Jupiter MOID = 2.50504 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 14.8   n/a MPO432396  
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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