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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03862992906004609 7.0829e-08  
a 3.253562409079997 3.9673e-08 au
q 3.127877524024805 2.403e-07 au
i 7.292826237445801 7.3039e-06 deg
node 346.5226008312654 4.2057e-05 deg
peri 243.864666211761 9.6647e-05 deg
M 333.0358206902849 8.8117e-05 deg
tp 2459161.054264400915
(2020-Nov-07.55426440)
0.0005249 TDB
period 2143.567379538388
5.87
3.9207e-05
1.073e-07
d
yr
n .1679443358937124 3.0718e-09 deg/d
Q 3.37924729413519 4.1206e-08 au
  Orbit Determination Parameters
   # obs. used (total)      195  
   data-arc span      8838 days (24.20 yr)  
   first obs. used      1996-02-14  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54375  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 19:59:56  

Additional Information
 Earth MOID = 2.1274 au 
 Jupiter MOID = 1.63523 au 
 T_jup = 3.167 
[ 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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