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312442 (2008 HF60)
Classification: Main-belt Asteroid          SPK-ID: 2312442
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03949301369252605 6.4162e-08  
a 3.047848798527072 4.4696e-08 au
q 2.927480064194093 1.9844e-07 au
i 10.45234442079362 8.7503e-06 deg
node 138.0159753411868 4.0625e-05 deg
peri 134.9955053565583 0.00012709 deg
M 54.90776778253642 0.00012245 deg
tp 2458704.071578306750
(2019-Aug-08.57157831)
0.00066061 TDB
period 1943.517941436163
5.32
4.2752e-05
1.17e-07
d
yr
n .1852311174107185 4.0746e-09 deg/d
Q 3.16821753286005 4.6461e-08 au
  Orbit Determination Parameters
   # obs. used (total)      174  
   data-arc span      6328 days (17.33 yr)  
   first obs. used      2002-03-12  
   last obs. used      2019-07-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55783  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:01:55  

Additional Information
 Earth MOID = 1.92108 au 
 Jupiter MOID = 1.95336 au 
 T_jup = 3.211 
[ 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 MPO260639  

312442 (2008 HF60)          Discovered 2008-Apr-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2008 HF60 = 2007 EQ157 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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