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JPL Small-Body Database Browser
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344500 (2002 QH121)
Classification: Main-belt Asteroid          SPK-ID: 2344500
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2010292059117667 1.0471e-07  
a 2.18537377486112 1.3932e-08 au
q 1.746049820280389 2.2626e-07 au
i 3.409888973531209 8.0894e-06 deg
node 190.8997277064589 7.5463e-05 deg
peri 171.3820976754384 9.1056e-05 deg
M 38.28059936835285 3.4507e-05 deg
tp 2458475.023254519778
(2018-Dec-22.52325452)
0.0001135 TDB
period 1180.013613115573
3.23
1.1284e-05
3.089e-08
d
yr
n .3050812261813634 2.9175e-09 deg/d
Q 2.62469772944185 1.6733e-08 au
  Orbit Determination Parameters
   # obs. used (total)      140  
   data-arc span      5360 days (14.67 yr)  
   first obs. used      2001-03-29  
   last obs. used      2015-12-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60733  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-10 08:28:24  

Additional Information
 Earth MOID = .742655 au 
 Jupiter MOID = 2.82963 au 
 T_jup = 3.648 
[ 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 18.7   n/a MPO353091  

344500 (2002 QH121)          Discovered 2002-Aug-16 by NEAT at Palomar
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ show close-approach data ]
Alternate Designations
 2002 QH121 = 2001 FK232 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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