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JPL Small-Body Database Browser
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(2021 RQ4)
Classification: Apollo [NEO]          SPK-ID: 54193836
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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .293991717720935 0.00024935  
a 1.255346285542956 0.00033981 au
q .8862848747215869 7.3127e-05 au
i 3.057780628677487 0.0022836 deg
node 342.8921962184247 0.00028286 deg
peri 68.20298568930221 0.0014224 deg
M 273.5777263177936 0.041786 deg
tp 2459519.829487532202
(2021-Nov-01.32948753)
0.0095555 TDB
period 513.7404238501773
1.41
0.20859
0.0005711
d
yr
n .7007429886517693 0.00028452 deg/d
Q 1.624407696364325 0.00043971 au
  Orbit Determination Parameters
   # obs. used (total)      31  
   data-arc span      2 days  
   first obs. used      2021-09-09  
   last obs. used      2021-09-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .42774  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Sep-12 05:49:26  

Additional Information
 Earth MOID = .00588538 au 
 Jupiter MOID = 3.74176 au 
 T_jup = 5.083 
[ 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 28.887   .69774 4 autocmod 2.9e

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