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312401 (2008 FB40)
Classification: Main-belt Asteroid          SPK-ID: 2312401
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09304505673650319 5.87e-08  
a 3.080707770891903 3.43e-08 au
q 2.794063141560679 1.8148e-07 au
i 2.775825430838948 6.5147e-06 deg
node 99.29035938665382 0.00014436 deg
peri 73.55923381095099 0.0001525 deg
M 111.2730014851086 4.4857e-05 deg
tp 2458390.033994054062
(2018-Sep-28.53399405)
0.00024667 TDB
period 1975.032210935271
5.41
3.2985e-05
9.031e-08
d
yr
n .1822755082204573 3.0441e-09 deg/d
Q 3.367352400223126 3.7492e-08 au
  Orbit Determination Parameters
   # obs. used (total)      165  
   data-arc span      6352 days (17.39 yr)  
   first obs. used      2002-02-10  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63866  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:45:56  

Additional Information
 Earth MOID = 1.80096 au 
 Jupiter MOID = 1.59901 au 
 T_jup = 3.219 
[ 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 16.4   n/a MPO476402  

312401 (2008 FB40)          Discovered 2008-Mar-28 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2008 FB40 = 2002 CB308 = 2005 TR138 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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