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146475 (2001 RS90)
Classification: Main-belt Asteroid          SPK-ID: 2146475
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06499020902314656 4.4083e-08  
a 2.695053340185992 1.4138e-08 au
q 2.519901260278775 1.1777e-07 au
i 7.03109230029996 4.415e-06 deg
node 135.0428964016558 3.6585e-05 deg
peri 248.4375174398396 4.8391e-05 deg
M 59.6350411204638 3.0584e-05 deg
tp 2458732.799922556212
(2019-Sep-06.29992256)
0.0001374 TDB
period 1616.03020756019
4.42
1.2717e-05
3.482e-08
d
yr
n .2227681130685743 1.753e-09 deg/d
Q 2.870205420093209 1.5057e-08 au
  Orbit Determination Parameters
   # obs. used (total)      582  
   data-arc span      6981 days (19.11 yr)  
   first obs. used      2001-09-11  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57553  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 14:27:28  

Additional Information
 Earth MOID = 1.53217 au 
 Jupiter MOID = 2.43039 au 
 T_jup = 3.356 
[ 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 15.5   n/a MPO453930  
diameter diameter 4.172 km 0.344 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.077   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146475 (2001 RS90)          Discovered 2001-Sep-11 by LONEOS at Anderson Mesa
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

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