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JPL Small-Body Database Browser
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(2018 JA1)
Classification: Apollo [NEO]          SPK-ID: 3823896
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2486121485232603 8.5819e-05  
a 1.325078389598257 0.00014594 au
q .9956478041984924 4.0646e-06 au
i 6.371826113600674 0.0018244 deg
node 228.2557463798782 0.00018559 deg
peri 31.73995245856295 0.0001883 deg
M 3.355570475550882 0.12236 deg
tp 2459391.306924370711
(2021-Jun-25.80692437)
0.18851 TDB
period 557.1354379726025
1.53
0.09204
0.000252
d
yr
n .6461624507499076 0.00010675 deg/d
Q 1.654508974998021 0.00018222 au
  Orbit Determination Parameters
   # obs. used (total)      106  
   data-arc span      8 days  
   first obs. used      2018-05-08  
   last obs. used      2018-05-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .45627  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:28:35  

Additional Information
 Earth MOID = .0118124 au 
 Jupiter MOID = 3.39905 au 
 T_jup = 4.898 
[ 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 25.7   n/a MPO448887  

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