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JPL Small-Body Database Browser
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109118 (2001 QH42)
Classification: Main-belt Asteroid          SPK-ID: 2109118
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05725257354470415 6.4694e-08  
a 2.470524363038645 1.7743e-08 au
q 2.329080485249792 1.5572e-07 au
i 3.20781608833587 6.6035e-06 deg
node 321.4128737706072 8.4661e-05 deg
peri 60.68600559759931 0.00010288 deg
M 142.1856680386191 5.4534e-05 deg
tp 2458040.309860016681
(2017-Oct-13.80986002)
0.00021577 TDB
period 1418.345837354153
3.88
1.528e-05
4.183e-08
d
yr
n .2538167987798804 2.7343e-09 deg/d
Q 2.611968240827499 1.8759e-08 au
  Orbit Determination Parameters
   # obs. used (total)      566  
   data-arc span      6459 days (17.68 yr)  
   first obs. used      2001-07-27  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56706  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:26:18  

Additional Information
 Earth MOID = 1.3324 au 
 Jupiter MOID = 2.62994 au 
 T_jup = 3.480 
[ 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 16.0   n/a MPO436525  
rotation period rot_per 7.898 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

109118 (2001 QH42)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QH42 = 2003 AM43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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