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JPL Small-Body Database Browser
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(2012 DF4)
Classification: Apollo [NEO]          SPK-ID: 3599477
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5394298374935311 0.00044637  
a 1.505041081448341 0.0011194 au
q .6931770154615738 0.00015627 au
i 4.707853774136718 0.0039866 deg
node 146.8291670571587 0.00043184 deg
peri 87.2088254369595 0.00025129 deg
M 357.5917810841002 2.0238 deg
tp 2459401.011432057676
(2021-Jul-05.51143206)
3.7964 TDB
period 674.4052752182619
1.85
0.75237
0.00206
d
yr
n .5338036537206667 0.00059551 deg/d
Q 2.316905147435107 0.0017232 au
  Orbit Determination Parameters
   # obs. used (total)      40  
   data-arc span      5 days  
   first obs. used      2012-02-16  
   last obs. used      2012-02-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .48815  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 06:03:30  

Additional Information
 Earth MOID = .00796641 au 
 Jupiter MOID = 2.69554 au 
 T_jup = 4.360 
[ 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 25.9   n/a MPO223120  

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