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JPL Small-Body Database Browser
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295339 (2008 HJ12)
Classification: Main-belt Asteroid          SPK-ID: 2295339
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1726128545016471 5.5137e-08  
a 2.415072257827443 2.1463e-08 au
q 1.99819974157611 1.3898e-07 au
i 1.307804861867562 6.5146e-06 deg
node 43.83744629798004 0.00038924 deg
peri 216.4955168742062 0.00039057 deg
M 311.0117322593497 3.1833e-05 deg
tp 2458787.044823705612
(2019-Oct-30.54482371)
0.00012173 TDB
period 1370.861629350787
3.75
1.8274e-05
5.003e-08
d
yr
n .2626085611357354 3.5007e-09 deg/d
Q 2.831944774078776 2.5167e-08 au
  Orbit Determination Parameters
   # obs. used (total)      123  
   data-arc span      7018 days (19.21 yr)  
   first obs. used      2000-02-06  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61125  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:47:28  

Additional Information
 Earth MOID = .982673 au 
 Jupiter MOID = 2.23228 au 
 T_jup = 3.496 
[ 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 18.0   n/a MPO334686  

295339 (2008 HJ12)          Discovered 2008-Apr-24 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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