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74647 (1999 RH71)
Classification: Main-belt Asteroid          SPK-ID: 2074647
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1844979105088786 4.5425e-08  
a 2.400289216980024 1.1669e-08 au
q 1.957440871830217 1.08e-07 au
i 1.752803063160963 4.8649e-06 deg
node 24.07526778338453 0.00013196 deg
peri 337.0680852117526 0.00013237 deg
M 194.7349836438657 1.2101e-05 deg
tp 2459624.051341953483
(2022-Feb-13.55134195)
4.8159e-05 TDB
period 1358.294018012371
3.72
9.9054e-06
2.712e-08
d
yr
n .2650383460620683 1.9328e-09 deg/d
Q 2.84313756212983 1.3822e-08 au
  Orbit Determination Parameters
   # obs. used (total)      525  
   data-arc span      8536 days (23.37 yr)  
   first obs. used      1996-12-09  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54976  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:07:32  

Additional Information
 Earth MOID = .954616 au 
 Jupiter MOID = 2.60909 au 
 T_jup = 3.502 
[ 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 16.3   n/a MPO468694  

74647 (1999 RH71)          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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