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JPL Small-Body Database Browser
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(2019 SF4)
Classification: Apollo [NEO]          SPK-ID: 3856708
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458753.5 (2019-Sep-27.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5455461037309253 0.0013585  
a 2.203188094032704 0.006553 au
q 1.001247413546799 1.5436e-05 au
i 1.480155642450746 0.0028199 deg
node 16.98521263462012 0.0050292 deg
peri 317.5901094220267 0.012674 deg
M 7.725299001382886 0.034662 deg
tp 2458727.867640381239
(2019-Sep-01.36764038)
0.00069925 TDB
period 1194.471496974051
3.27
5.3292
0.01459
d
yr
n .3013885228002394 0.0013447 deg/d
Q 3.40512877451861 0.010128 au
  Orbit Determination Parameters
   # obs. used (total)      23  
   data-arc span      13 days  
   first obs. used      2019-09-25  
   last obs. used      2019-10-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .3389  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Oct-23 05:55:43  

Additional Information
 Earth MOID = .0132455 au 
 Jupiter MOID = 1.99093 au 
 T_jup = 3.452 
[ 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 25.949   .22384 4 autocmod 2.8

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