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74611 (1999 RK17)
Classification: Main-belt Asteroid          SPK-ID: 2074611
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 .04725434435770208 4.3117e-08  
a 2.304502557525439 9.7879e-09 au
q 2.195604800098927 9.7253e-08 au
i 2.691444230125922 4.2192e-06 deg
node 243.7555169701438 8.6185e-05 deg
peri 166.7726977478332 9.6483e-05 deg
M 275.1912661707347 4.4052e-05 deg
tp 2459301.524814278866
(2021-Mar-28.02481428)
0.00015692 TDB
period 1277.803927111531
3.50
8.1408e-06
2.229e-08
d
yr
n .2817333648471232 1.7949e-09 deg/d
Q 2.413400314951951 1.025e-08 au
  Orbit Determination Parameters
   # obs. used (total)      846  
   data-arc span      7789 days (21.33 yr)  
   first obs. used      1998-04-21  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53553  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:19:23  

Additional Information
 Earth MOID = 1.2058 au 
 Jupiter MOID = 2.73375 au 
 T_jup = 3.586 
[ 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 15.8   n/a MPO474632  

74611 (1999 RK17)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RK17 = 1998 HG78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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