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74609 (1999 RE17)
Classification: Main-belt Asteroid          SPK-ID: 2074609
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1500725852322869 4.4044e-08  
a 2.331580208791628 8.8995e-09 au
q 1.981673939181833 1.0236e-07 au
i 3.911163708148352 4.6167e-06 deg
node 224.340129750167 5.4291e-05 deg
peri 172.7959898308457 5.5824e-05 deg
M 261.0256260000056 1.2557e-05 deg
tp 2459358.014968820811
(2021-May-23.51496882)
4.602e-05 TDB
period 1300.391036325213
3.56
7.4453e-06
2.038e-08
d
yr
n .2768398042925052 1.585e-09 deg/d
Q 2.681486478401423 1.0235e-08 au
  Orbit Determination Parameters
   # obs. used (total)      937  
   data-arc span      15176 days (41.55 yr)  
   first obs. used      1978-11-29  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55531  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:50:01  

Additional Information
 Earth MOID = .989 au 
 Jupiter MOID = 2.725 au 
 T_jup = 3.552 
[ 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 MPO333435  

74609 (1999 RE17)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RE17 = 1978 WX4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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