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(2018 OB1)
Classification: Apollo [NEO, PHA]          SPK-ID: 3825831
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .689901832974559 4.4079e-06  
a 3.182077972517035 4.4962e-05 au
q .9867565466095642 1.3388e-07 au
i 4.334945289188654 1.8297e-05 deg
node 174.5630679258422 0.00011825 deg
peri 225.0781369219049 0.00010888 deg
M 103.7923780172785 0.0021946 deg
tp 2458402.738948351072
(2018-Oct-11.23894835)
3.7969e-05 TDB
period 2073.311958974389
5.68
0.043943
0.0001203
d
yr
n .17363523055068 3.6801e-06 deg/d
Q 5.377399398424505 7.5982e-05 au
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      185 days  
   first obs. used      2018-07-11  
   last obs. used      2019-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .60285  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jan-26 09:17:01  

Additional Information
 Earth MOID = .0352439 au 
 Jupiter MOID = .181075 au 
 T_jup = 2.764 
[ 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 20.8   n/a MPO473497  

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