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74680 (1999 RW115)
Classification: Main-belt Asteroid          SPK-ID: 2074680
[ 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 .2404668177848483 3.6377e-08  
a 2.319546423339168 7.9703e-09 au
q 1.761772476214572 8.2093e-08 au
i 4.681434149858282 3.9706e-06 deg
node 167.6034418437069 4.977e-05 deg
peri 173.7807262646674 5.0528e-05 deg
M 306.9460526856986 1.0898e-05 deg
tp 2459190.659589509139
(2020-Dec-07.15958951)		 3.9626e-05 TDB
period 1290.336642017143
3.53		 6.6507e-06
1.821e-08		 d
yr
n .278996959612976 1.438e-09 deg/d
Q 2.877320370463765 9.8869e-09 au
   Orbit Determination Parameters
   # obs. used (total)      889  
   data-arc span      9619 days (26.34 yr)  
   first obs. used      1994-02-16  
   last obs. used      2020-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53421  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:50:01  

Additional Information
 Earth MOID = .75366 au 
 Jupiter MOID = 2.53246 au 
 T_jup = 3.535 
[ 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 MPO337821  

74680 (1999 RW115)          Discovered 1999-Sep-09 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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