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JPL Small-Body Database Browser
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295352 (2008 HH31)
Classification: Main-belt Asteroid          SPK-ID: 2295352
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1309922748886784 5.6089e-08  
a 2.33904221837553 2.1531e-08 au
q 2.032645757129858 1.3116e-07 au
i 5.172721426254674 5.9521e-06 deg
node 179.6090081286037 7.5019e-05 deg
peri 284.0587153663357 8.2177e-05 deg
M 238.2337477719556 4.1467e-05 deg
tp 2459442.456938428053
(2021-Aug-15.95693843)
0.00015427 TDB
period 1306.638702619568
3.58
1.8041e-05
4.939e-08
d
yr
n .2755161004172514 3.8042e-09 deg/d
Q 2.645438679621201 2.4351e-08 au
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      8150 days (22.31 yr)  
   first obs. used      1997-03-11  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52252  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:42:59  

Additional Information
 Earth MOID = 1.05674 au 
 Jupiter MOID = 2.48713 au 
 T_jup = 3.549 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.6   n/a MPO433904  

295352 (2008 HH31)          Discovered 2008-Apr-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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