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312440 (2008 HF48)
Classification: Main-belt Asteroid          SPK-ID: 2312440
[ 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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07751274251587043 7.0572e-08  
a 3.071890699917428 3.9505e-08 au
q 2.833780027057831 2.1508e-07 au
i 2.21622938188544 9.7412e-06 deg
node 54.02203138702133 0.0001386 deg
peri 32.86572956901039 0.00014949 deg
M 198.3758132901385 5.5268e-05 deg
tp 2459883.398781247887
(2022-Oct-30.89878125)		 0.00030551 TDB
period 1966.559385197797
5.38		 3.7936e-05
1.039e-07		 d
yr
n .1830608334076782 3.5313e-09 deg/d
Q 3.310001372777024 4.2568e-08 au
   Orbit Determination Parameters
   # obs. used (total)      176  
   data-arc span      6755 days (18.49 yr)  
   first obs. used      2000-11-28  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53593  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:01:54  

Additional Information
 Earth MOID = 1.85041 au 
 Jupiter MOID = 1.84502 au 
 T_jup = 3.225 
[ 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 16.8   n/a MPO437379  

312440 (2008 HF48)          Discovered 2008-Apr-29 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2008 HF48 = 2005 TJ31 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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