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91525 (1999 RA189)
Classification: Main-belt Asteroid          SPK-ID: 2091525
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08702794355262783 4.0037e-08  
a 2.991550636002829 2.3074e-08 au
q 2.731202136117947 1.1612e-07 au
i 10.73685767358645 4.4115e-06 deg
node 164.0567151933713 2.4341e-05 deg
peri 165.6797531750269 3.6328e-05 deg
M 22.02533678618846 2.7906e-05 deg
tp 2458884.871997983753
(2020-Feb-05.37199798)
0.00014622 TDB
period 1889.918012602267
5.17
2.1865e-05
5.986e-08
d
yr
n .1904844536109312 2.2038e-09 deg/d
Q 3.251899135887711 2.5082e-08 au
  Orbit Determination Parameters
   # obs. used (total)      718  
   data-arc span      7652 days (20.95 yr)  
   first obs. used      1999-08-22  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56847  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:17:39  

Additional Information
 Earth MOID = 1.72217 au 
 Jupiter MOID = 2.13367 au 
 T_jup = 3.224 
[ 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 14.7   n/a MPO432453  

91525 (1999 RA189)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 RA189 = 2002 CA145 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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