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91500 (1999 RA147)
Classification: Main-belt Asteroid          SPK-ID: 2091500
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06798671418870056 8.2671e-08  
a 2.879728512235872 2.0975e-08 au
q 2.68394523293344 2.2724e-07 au
i 11.92234304082569 6.0889e-06 deg
node 192.1108650396511 1.663e-05 deg
peri 159.4050961527258 3.5784e-05 deg
M 158.622563688725 3.4372e-05 deg
tp 2458610.019045061973
(2019-May-06.51904506)
0.00016656 TDB
period 1784.948731085318
4.89
1.9502e-05
5.339e-08
d
yr
n .2016864651239064 2.2035e-09 deg/d
Q 3.075511791538304 2.2401e-08 au
  Orbit Determination Parameters
   # obs. used (total)      785  
   data-arc span      7886 days (21.59 yr)  
   first obs. used      1999-09-05  
   last obs. used      2021-04-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50978  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:40:43  

Additional Information
 Earth MOID = 1.68206 au 
 Jupiter MOID = 2.24568 au 
 T_jup = 3.259 
[ 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 15.09   n/a MPCxxxxx  

91500 (1999 RA147)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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