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JPL Small-Body Database Browser
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(2021 QA2)
Classification: Apollo [NEO]          SPK-ID: 54190783
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5742814825566653 0.00020236  
a 2.071243352523488 0.0009301 au
q .8817666493006614 2.3196e-05 au
i 7.0922276746282 0.00177 deg
node 180.7238812114036 0.00064286 deg
peri 226.3220004891177 0.0010182 deg
M 321.4615901763652 0.027164 deg
tp 2459513.056475972357
(2021-Oct-25.55647597)
0.0036445 TDB
period 1088.792494087682
2.98
0.73339
0.002008
d
yr
n .3306415152151193 0.00022271 deg/d
Q 3.260720055746314 0.0014642 au
  Orbit Determination Parameters
   # obs. used (total)      90  
   data-arc span      17 days  
   first obs. used      2021-08-29  
   last obs. used      2021-09-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .27435  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Sep-16 06:34:18  

Additional Information
 Earth MOID = .00379076 au 
 Jupiter MOID = 2.17497 au 
 T_jup = 3.537 
[ 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 24.078   .2449 12 autocmod 2.9e

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