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JPL Small-Body Database Browser
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(2021 RF12)
Classification: Apollo [NEO]          SPK-ID: 54195881
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5329254302010187 0.00063366  
a 1.87360068049503 0.0023181 au
q .8751112318172948 0.00010456 au
i 2.835852525428446 0.0025421 deg
node 168.6259434597865 0.00021345 deg
peri 127.2735051292186 0.00081202 deg
M 347.160136048496 0.01954 deg
tp 2459429.909648105847
(2021-Aug-03.40964811)
0.011162 TDB
period 936.7290310498955
2.56
1.7384
0.004759
d
yr
n .3843160487900202 0.00071323 deg/d
Q 2.872090129172765 0.0035534 au
  Orbit Determination Parameters
   # obs. used (total)      36  
   data-arc span      3 days  
   first obs. used      2021-09-12  
   last obs. used      2021-09-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .47048  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Sep-15 05:49:42  

Additional Information
 Earth MOID = .00107398 au 
 Jupiter MOID = 2.37295 au 
 T_jup = 3.791 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 27.917   .29355 2 autocmod 2.9e

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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