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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1560782837145286 5.703e-08  
a 2.548914888895857 1.1644e-08 au
q 2.151084627702583 1.4704e-07 au
i 2.997667904645344 5.3894e-06 deg
node 23.37215606533644 0.00012362 deg
peri 262.5073939046292 0.00012608 deg
M 188.2872867625821 2.2856e-05 deg
tp 2460105.475745379735
(2023-Jun-09.97574538)
9.3803e-05 TDB
period 1486.385390601861
4.07
1.0185e-05
2.789e-08
d
yr
n .2421982900775352 1.6596e-09 deg/d
Q 2.946745150089131 1.3461e-08 au
  Orbit Determination Parameters
   # obs. used (total)      502  
   data-arc span      10682 days (29.25 yr)  
   first obs. used      1991-10-11  
   last obs. used      2021-01-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57894  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:48:16  

Additional Information
 Earth MOID = 1.13695 au 
 Jupiter MOID = 2.21025 au 
 T_jup = 3.422 
[ 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 16.40   n/a MPCxxxxx  

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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