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JPL Small-Body Database Browser
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(2021 OJ1)
Classification: Apollo [NEO]          SPK-ID: 54175822
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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 2459428.5 (2021-Aug-02.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3388722664255799 0.00077492  
a 1.470715625588182 0.0016393 au
q .9723308882776005 5.5928e-05 au
i 12.7602472490204 0.020117 deg
node 126.2531019569401 0.00079159 deg
peri 143.5970170294244 0.0065497 deg
M 19.7284408652191 0.04185 deg
tp 2459392.798887433216
(2021-Jun-27.29888743)
0.016045 TDB
period 651.4655979074759
1.78
1.0892
0.002982
d
yr
n .5526001697654169 0.0009239 deg/d
Q 1.969100362898764 0.0021948 au
  Orbit Determination Parameters
   # obs. used (total)      22  
   data-arc span      10 days  
   first obs. used      2021-07-30  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .38222  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-10 06:26:43  

Additional Information
 Earth MOID = .00606348 au 
 Jupiter MOID = 3.17421 au 
 T_jup = 4.514 
[ 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 25.09   .18637 E2021-PB1 autocmod 2.9c

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