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JPL Small-Body Database Browser
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172981 (2006 HN30)
Classification: Main-belt Asteroid          SPK-ID: 2172981
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1629862199691218 4.2384e-08  
a 2.16021230056073 1.0359e-08 au
q 1.808127463361536 9.2188e-08 au
i 4.118261213207281 3.7046e-06 deg
node 72.86417332612834 7.0691e-05 deg
peri 229.2172646315256 7.2255e-05 deg
M 95.4293322335397 1.288e-05 deg
tp 2458693.086834487118
(2019-Jul-28.58683449)
4.213e-05 TDB
period 1159.693115255205
3.18
8.3418e-06
2.284e-08
d
yr
n .310426952841552 2.2329e-09 deg/d
Q 2.512297137759924 1.2047e-08 au
  Orbit Determination Parameters
   # obs. used (total)      532  
   data-arc span      7057 days (19.32 yr)  
   first obs. used      2000-07-07  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59754  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 14:32:43  

Additional Information
 Earth MOID = .795907 au 
 Jupiter MOID = 2.6964 au 
 T_jup = 3.677 
[ 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 16.8   n/a MPO436859  

172981 (2006 HN30)          Discovered 2006-Apr-21 by CSS at Catalina
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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