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129831 (1999 RQ7)
Classification: Main-belt Asteroid          SPK-ID: 2129831
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1563628165188567 8.5021e-08  
a 2.547977419553284 1.4246e-08 au
q 2.149568493805484 2.2293e-07 au
i 2.99806815545496 6.2056e-06 deg
node 23.38199303667912 0.00014161 deg
peri 262.389730426886 0.00014798 deg
M 92.46937609993125 3.9081e-05 deg
tp 2458618.918583469921
(2019-May-15.41858347)		 0.00016305 TDB
period 1485.56544603885
4.07		 1.2459e-05
3.411e-08		 d
yr
n .2423319692578427 2.0324e-09 deg/d
Q 2.946386345301085 1.6474e-08 au
   Orbit Determination Parameters
   # obs. used (total)      474  
   data-arc span      10579 days (28.96 yr)  
   first obs. used      1991-10-11  
   last obs. used      2020-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58433  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:46:00  

Additional Information
 Earth MOID = 1.13573 au 
 Jupiter MOID = 2.21225 au 
 T_jup = 3.423 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO436629  

129831 (1999 RQ7)          Discovered 1999-Sep-03 by Spacewatch at Kitt Peak
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

Alternate Designations
 1999 RQ7 = 2002 GH122 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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