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440212 (2004 OB)
Classification: Apollo [NEO, PHA]          SPK-ID: 2440212
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 119 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4301777908956871 2.2535e-08  
a 1.680813069704646 2.7206e-09 au
q .9577646164705031 3.7882e-08 au
i 3.441858666485601 3.0588e-06 deg
node 174.5350009757712 7.7207e-05 deg
peri 223.32838562 7.6788e-05 deg
M 142.1256708347694 8.7325e-06 deg
tp 2458886.270048568323
(2020-Feb-06.77004857)
1.8617e-05 TDB
period 795.9349064175497
2.18
1.9325e-06
5.291e-09
d
yr
n .4522982936134014 1.0982e-09 deg/d
Q 2.40386152293879 3.891e-09 au
  Orbit Determination Parameters
   # obs. used (total)      739  
   data-arc span      5939 days (16.26 yr)  
   first obs. used      2003-03-31  
   last obs. used      2019-07-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51164  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:36:31  

Additional Information
 Earth MOID = .0113725 au 
 Jupiter MOID = 3.0289 au 
 T_jup = 4.120 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.8   n/a MPO437711  

440212 (2004 OB)          Discovered 2004-Jul-16 by LINEAR at Socorro
Reference: Last Updated: 2015-09-02

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