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85175 (1990 RS)
Classification: Main-belt Asteroid          SPK-ID: 2085175
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1550788248857949 5.6292e-08  
a 2.299127028084344 7.2363e-09 au
q 1.942581110305854 1.2945e-07 au
i 8.630937925753237 5.6227e-06 deg
node 349.6193447849363 2.2423e-05 deg
peri 25.01546435401611 2.5964e-05 deg
M 165.6867268787103 1.2168e-05 deg
tp 2458414.458872648927
(2018-Oct-22.95887265)
4.2346e-05 TDB
period 1273.335588316793
3.49
6.0116e-06
1.646e-08
d
yr
n .2827220124082762 1.3348e-09 deg/d
Q 2.655672945862833 8.3585e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1196  
   data-arc span      13371 days (36.61 yr)  
   first obs. used      1983-09-12  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51217  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:34:08  

Additional Information
 Earth MOID = .945997 au 
 Jupiter MOID = 2.82129 au 
 T_jup = 3.562 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457141.5 (2015-Apr-29.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1546568010323502 5.6486e-08  
q 1.943783922086794 1.2993e-07 au
tp 2457138.635686680123
(2015-Apr-26.13568668)
4.1518e-05 TDB
node 349.6675881706451 2.2392e-05 deg
peri 24.51377271377255 2.595e-05 deg
i 8.637722705125233 5.6249e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1196  
   data-arc span      13371 days (36.61 yr)  
   first obs. used      1983-09-12  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51217  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:34:08  

Additional Information
 Jupiter MOID = 2.82129 au 
 T_jup = 3.562 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.190688005516804E-15 -7.331366546443524E-15 -9.200028742024518E-13 3.131676602681002E-14 -3.821586523065015E-13 3.265633905442934E-18
q -7.331366546443524E-15 1.688286524648701E-14 2.140190653621996E-12 -7.21544396107344E-14 8.842603832769742E-13 3.42934929316119E-16
tp -9.200028742024518E-13 2.140190653621996E-12 1.723709329281434E-9 -1.888656968194458E-11 5.465400707349189E-10 -2.129022594738517E-12
node 3.131676602681002E-14 -7.21544396107344E-14 -1.888656968194458E-11 5.013863035387892E-10 -5.013283802189627E-10 1.742512243476164E-11
peri -3.821586523065015E-13 8.842603832769742E-13 5.465400707349189E-10 -5.013283802189627E-10 6.733946292446252E-10 -1.78577107557127E-11
i 3.265633905442934E-18 3.42934929316119E-16 -2.129022594738517E-12 1.742512243476164E-11 -1.78577107557127E-11 3.163943239441165E-11

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 15.1   n/a MPO366210  
diameter diameter 2.924 km 0.760 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.226   0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85175 (1990 RS)          Discovered 1990-Sep-13 by Olmstead, C. M. at Palomar
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1990 RS = 1988 AS2 = 1999 CH51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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