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74665 (1999 RA94)
Classification: Main-belt Asteroid          SPK-ID: 2074665
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2169588618080497 3.8609e-08  
a 2.323158423602963 8.7856e-09 au
q 1.819128616218281 8.975e-08 au
i 4.598546631502984 4.5287e-06 deg
node 119.5037222277668 5.1959e-05 deg
peri 256.5211529807333 5.3041e-05 deg
M 295.01222196346 1.2559e-05 deg
tp 2459233.977941002947
(2021-Jan-19.47794100)
4.5955e-05 TDB
period 1293.35178552807
3.54
7.3367e-06
2.009e-08
d
yr
n .2783465442489907 1.579e-09 deg/d
Q 2.827188230987645 1.0692e-08 au
  Orbit Determination Parameters
   # obs. used (total)      779  
   data-arc span      8558 days (23.43 yr)  
   first obs. used      1997-01-09  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55793  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:50:01  

Additional Information
 Earth MOID = .826953 au 
 Jupiter MOID = 2.64428 au 
 T_jup = 3.540 
[ 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 15.7   n/a MPO337821  

74665 (1999 RA94)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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