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JPL Small-Body Database Browser
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312572 (2009 HB42)
Classification: Main-belt Asteroid          SPK-ID: 2312572
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05712756366072812 4.3618e-08  
a 2.710477347553386 2.6566e-08 au
q 2.555634380330068 1.1597e-07 au
i 4.953484982715131 4.4527e-06 deg
node 95.47813119303693 7.7637e-05 deg
peri 181.3917451231065 9.9741e-05 deg
M 31.13950657636671 6.2256e-05 deg
tp 2458459.513890671814
(2018-Dec-07.01389067)
0.0002824 TDB
period 1629.923044338393
4.46
2.3963e-05
6.561e-08
d
yr
n .220869323401786 3.2472e-09 deg/d
Q 2.865320314776703 2.8084e-08 au
  Orbit Determination Parameters
   # obs. used (total)      211  
   data-arc span      4740 days (12.98 yr)  
   first obs. used      2006-10-22  
   last obs. used      2019-10-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58154  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:11:34  

Additional Information
 Earth MOID = 1.53869 au 
 Jupiter MOID = 2.19564 au 
 T_jup = 3.355 
[ 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 16.5   n/a MPO450244  

312572 (2009 HB42)          Discovered 2009-Apr-20 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

Alternate Designations
 2009 HB42 = 2008 AT50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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