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120161 (2003 HB31)
Classification: Main-belt Asteroid          SPK-ID: 2120161
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03877405626971699 4.7016e-08  
a 3.175314384291176 2.5436e-08 au
q 3.052194565680628 1.5776e-07 au
i 8.815224143825331 5.7446e-06 deg
node 211.0811757806224 2.4787e-05 deg
peri 49.48928508162643 7.1068e-05 deg
M 358.6670425226682 6.7366e-05 deg
tp 2459208.152305809871
(2020-Dec-24.65230581)
0.00038674 TDB
period 2066.705156317304
5.66
2.4833e-05
6.799e-08
d
yr
n .1741903042626021 2.093e-09 deg/d
Q 3.298434202901724 2.6422e-08 au
  Orbit Determination Parameters
   # obs. used (total)      635  
   data-arc span      7594 days (20.79 yr)  
   first obs. used      1999-09-04  
   last obs. used      2020-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54506  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:59:05  

Additional Information
 Earth MOID = 2.04508 au 
 Jupiter MOID = 1.71122 au 
 T_jup = 3.181 
[ 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 14.62   n/a E2021B55  

120161 (2003 HB31)          Discovered 2003-Apr-26 by Spacewatch at Kitt Peak
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 2003 HB31 = 2002 CQ48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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