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215475 (2002 RD122)
Classification: Main-belt Asteroid          SPK-ID: 2215475
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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1565246851670266 8.503e-08  
a 2.550161045388384 1.9808e-08 au
q 2.150997890633752 2.2303e-07 au
i 8.383982248664589 6.1993e-06 deg
node 86.63417282699371 4.5232e-05 deg
peri 283.1061673020661 5.1099e-05 deg
M 17.56963414500384 2.5981e-05 deg
tp 2458527.904440706097
(2019-Feb-13.40444071)
0.000107 TDB
period 1487.475557550917
4.07
1.733e-05
4.745e-08
d
yr
n .2420207835836503 2.8198e-09 deg/d
Q 2.949324200143016 2.2908e-08 au
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      6303 days (17.26 yr)  
   first obs. used      2002-09-03  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54491  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:11:03  

Additional Information
 Earth MOID = 1.16883 au 
 Jupiter MOID = 2.55523 au 
 T_jup = 3.409 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457264.5 (2015-Aug-30.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1567030396555545 8.5648e-08  
q 2.150125276663228 2.2488e-07 au
tp 2457036.093866542964
(2015-Jan-13.59386654)
9.9997e-05 TDB
node 86.78594324291379 4.5307e-05 deg
peri 282.093873787087 5.1032e-05 deg
i 8.378668700998638 6.2002e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      6303 days (17.26 yr)  
   first obs. used      2002-09-03  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54491  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:11:03  

Additional Information
 Jupiter MOID = 2.55523 au 
 T_jup = 3.409 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.335660416389319E-15 -1.921321731318848E-14 -5.325632625054775E-12 1.591617806097428E-13 -1.101316984129328E-12 -2.434347567594295E-15
q -1.921321731318848E-14 5.057148559577357E-14 1.407531376951226E-11 -4.1606234968296E-13 2.926412467801381E-12 7.667389855005876E-15
tp -5.325632625054775E-12 1.407531376951226E-11 9.999488412586836E-9 -1.188024974016111E-10 2.397062452824891E-9 1.29928708143283E-11
node 1.591617806097428E-13 -4.1606234968296E-13 -1.188024974016111E-10 2.052705048278631E-9 -2.051940038066758E-9 1.246859641516639E-10
peri -1.101316984129328E-12 2.926412467801381E-12 2.397062452824891E-9 -2.051940038066758E-9 2.604302262664482E-9 -1.200788663738387E-10
i -2.434347567594295E-15 7.667389855005876E-15 1.29928708143283E-11 1.246859641516639E-10 -1.200788663738387E-10 3.844219007192189E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7   n/a MPO454547  

215475 (2002 RD122)          Discovered 2002-Sep-08 by NEAT at Haleakala
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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