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JPL Small-Body Database Browser
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305515 (2008 FF4)
Classification: Outer Main-belt Asteroid          SPK-ID: 2305515
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03875484472784312 7.3676e-08  
a 3.254943525054065 5.6548e-08 au
q 3.128798694142696 2.6173e-07 au
i 7.291237516793249 7.6481e-06 deg
node 346.5235380196872 4.9875e-05 deg
peri 243.238341942252 0.00013793 deg
M 266.4953966281007 0.00013546 deg
tp 2459157.614042169246
(2020-Nov-04.11404217)
0.00081547 TDB
period 2144.932419885569
5.87
5.5896e-05
1.53e-07
d
yr
n .1678374556990498 4.3737e-09 deg/d
Q 3.381088355965433 5.8739e-08 au
  Orbit Determination Parameters
   # obs. used (total)      151  
   data-arc span      8391 days (22.97 yr)  
   first obs. used      1996-02-14  
   last obs. used      2019-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57689  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:50:53  

Additional Information
 Earth MOID = 2.12838 au 
 Jupiter MOID = 1.63388 au 
 T_jup = 3.166 
[ 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 15.8   n/a MPO433969  

305515 (2008 FF4)          Discovered 2008-Mar-25 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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