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JPL Small-Body Database Browser
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(2021 RP12)
Classification: Apollo [NEO]          SPK-ID: 54195890
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 2459468.5 (2021-Sep-11.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4461318704984074 0.0065666  
a 1.626098361924405 0.014286 au
q .9006440581046741 0.002822 au
i 6.894683677661395 0.096124 deg
node 191.1330337498007 0.43924 deg
peri 227.5146265642891 0.43963 deg
M 330.9371782786434 0.52553 deg
tp 2459529.644010678494
(2021-Nov-11.14401068)
0.30594 TDB
period 757.3883931608253
2.07
9.9807
0.02733
d
yr
n .4753175560264453 0.0062636 deg/d
Q 2.351552665744137 0.020659 au
  Orbit Determination Parameters
   # obs. used (total)      14  
   data-arc span      2 days  
   first obs. used      2021-09-11  
   last obs. used      2021-09-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      9  
   norm. resid. RMS      .26814  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Sep-13 04:12:06  

Additional Information
 Earth MOID = .000296923 au 
 Jupiter MOID = 3.02901 au 
 T_jup = 4.193 
[ 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 24.735   .2125 1 autocmod 2.9e

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