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91477 (1999 RJ97)
Classification: Main-belt Asteroid          SPK-ID: 2091477
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08526498347171922 4.2601e-08  
a 3.011793879508281 2.4069e-08 au
q 2.754993324151783 1.3138e-07 au
i 8.123305441470402 5.4078e-06 deg
node 349.3796084123436 3.3936e-05 deg
peri 94.82318897194492 4.6309e-05 deg
M 268.5396957952212 3.1648e-05 deg
tp 2459485.527583083776
(2021-Sep-28.02758308)
0.00016888 TDB
period 1909.13349160975
5.23
2.2886e-05
6.266e-08
d
yr
n .18856722255522 2.2604e-09 deg/d
Q 3.26859443486478 2.6121e-08 au
  Orbit Determination Parameters
   # obs. used (total)      654  
   data-arc span      7630 days (20.89 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52794  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:17:39  

Additional Information
 Earth MOID = 1.78633 au 
 Jupiter MOID = 1.91611 au 
 T_jup = 3.229 
[ 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 14.9   n/a MPO449562  

91477 (1999 RJ97)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 RJ97 = 2000 XC33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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