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74644 (1999 RK63)
Classification: Mars-crossing Asteroid          SPK-ID: 2074644
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3104101394921312 4.8674e-08  
a 2.401830374331743 9.7214e-09 au
q 1.656277872798989 1.1711e-07 au
i 3.206375689632735 4.1054e-06 deg
node 286.82868636 9.3771e-05 deg
peri 76.87872054313911 9.3921e-05 deg
M 192.1914591262777 7.0454e-06 deg
tp 2459634.258046475632
(2022-Feb-23.75804648)
2.8917e-05 TDB
period 1359.60241083864
3.72
8.2545e-06
2.26e-08
d
yr
n .264783290416455 1.6076e-09 deg/d
Q 3.147382875864497 1.2739e-08 au
  Orbit Determination Parameters
   # obs. used (total)      620  
   data-arc span      11051 days (30.26 yr)  
   first obs. used      1988-10-08  
   last obs. used      2019-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51067  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:36:16  

Additional Information
 Earth MOID = .65778 au 
 Jupiter MOID = 2.33254 au 
 T_jup = 3.456 
[ 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 16.1   n/a MPO453160  

74644 (1999 RK63)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RK63 = 1999 UB45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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