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91457 (1999 RL65)
Classification: Main-belt Asteroid          SPK-ID: 2091457
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08688993007484419 4.0521e-08  
a 2.813471317560488 2.2341e-08 au
q 2.569008991510077 1.1219e-07 au
i 3.246502849957835 4.1779e-06 deg
node 244.9769165471387 8.9769e-05 deg
peri 53.10924655674443 9.4246e-05 deg
M 178.5781097149711 2.9004e-05 deg
tp 2458145.457138208693
(2018-Jan-26.95713821)
0.00013921 TDB
period 1723.701918091615
4.72
2.0531e-05
5.621e-08
d
yr
n .2088528162680074 2.4876e-09 deg/d
Q 3.057933643610899 2.4282e-08 au
  Orbit Determination Parameters
   # obs. used (total)      468  
   data-arc span      9805 days (26.84 yr)  
   first obs. used      1993-03-21  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56895  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:30:17  

Additional Information
 Earth MOID = 1.55484 au 
 Jupiter MOID = 2.09558 au 
 T_jup = 3.312 
[ 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 MPO412707  

91457 (1999 RL65)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 RL65 = 1993 FF75 = 1997 EC27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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