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JPL Small-Body Database Browser
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226682 (2004 HP43)
Classification: Main-belt Asteroid          SPK-ID: 2226682
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1496837481447006 4.8233e-08  
a 2.292552733487112 1.3324e-08 au
q 1.949394847519382 1.0734e-07 au
i .1921677108692549 5.2103e-06 deg
node 243.4251975857129 0.0015047 deg
peri 302.2096016228282 0.0015048 deg
M 136.2235153307901 1.855e-05 deg
tp 2458120.736713762863
(2018-Jan-02.23671376)
6.4187e-05 TDB
period 1267.87788896776
3.47
1.1053e-05
3.026e-08
d
yr
n .2839390158409445 2.4753e-09 deg/d
Q 2.635710619454842 1.5318e-08 au
  Orbit Determination Parameters
   # obs. used (total)      276  
   data-arc span      6197 days (16.97 yr)  
   first obs. used      2002-11-05  
   last obs. used      2019-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57333  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 00:55:41  

Additional Information
 Earth MOID = .951369 au 
 Jupiter MOID = 2.32331 au 
 T_jup = 3.582 
[ 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 17.4   n/a MPO450051  
rotation period rot_per 4.47 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

226682 (2004 HP43)          Discovered 2004-Apr-21 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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