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JPL Small-Body Database Browser
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226121 (2002 QG4)
Classification: Outer Main-belt Asteroid          SPK-ID: 2226121
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1028782435865331 5.892e-08  
a 3.21358440055477 4.9323e-08 au
q 2.882976481808614 1.8236e-07 au
i 5.059448635448851 7.9527e-06 deg
node 312.1412347983604 7.3402e-05 deg
peri 87.24435241886134 8.3635e-05 deg
M 262.7945601909369 4.0623e-05 deg
tp 2459168.660531907208
(2020-Nov-15.16053191)
0.00024125 TDB
period 2104.1805056215
5.76
4.8443e-05
1.326e-07
d
yr
n .1710879836773646 3.9389e-09 deg/d
Q 3.544192319300927 5.4397e-08 au
  Orbit Determination Parameters
   # obs. used (total)      234  
   data-arc span      8852 days (24.24 yr)  
   first obs. used      1994-03-17  
   last obs. used      2018-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55506  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 08:45:23  

Additional Information
 Earth MOID = 1.89596 au 
 Jupiter MOID = 1.86598 au 
 T_jup = 3.176 
[ 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 15.5   n/a MPO454623  
diameter diameter 3.749 km 0.848 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.087   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226121 (2002 QG4)          Discovered 2002-Aug-16 by NEAT at Haleakala
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2002 QG4 = 2003 WE72 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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