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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06466299771960089 4.4912e-08  
a 2.694179231918976 1.455e-08 au
q 2.519965526389203 1.206e-07 au
i 7.0310936464045 4.6079e-06 deg
node 135.0497757629877 3.7588e-05 deg
peri 248.4002262608942 4.9646e-05 deg
M 330.542999138145 3.1544e-05 deg
tp 2458732.667349179057
(2019-Sep-06.16734918)
0.0001415 TDB
period 1615.244061253842
4.42
1.3085e-05
3.582e-08
d
yr
n .2228765352776149 1.8055e-09 deg/d
Q 2.868392937448749 1.5491e-08 au
  Orbit Determination Parameters
   # obs. used (total)      556  
   data-arc span      6649 days (18.20 yr)  
   first obs. used      2001-09-11  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58268  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 12:59:23  

Additional Information
 Earth MOID = 1.53142 au 
 Jupiter MOID = 2.43216 au 
 T_jup = 3.357 
[ 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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