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JPL Small-Body Database Browser
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172211 (2002 QE84)
Classification: Main-belt Asteroid          SPK-ID: 2172211
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1668514238503868 2.6655e-07  
a 2.479353988798266 2.3869e-08 au
q 2.065670245538139 6.5622e-07 au
i 4.103713855095827 7.4692e-06 deg
node 336.8005457665216 8.286e-05 deg
peri 188.6519603667219 8.6018e-05 deg
M 2.316254860966156 4.1131e-05 deg
tp 2458991.325337948612
(2020-May-21.82533795)
0.00016295 TDB
period 1425.956354872797
3.90
2.0592e-05
5.638e-08
d
yr
n .2524621449806673 3.6457e-09 deg/d
Q 2.893037732058392 2.7851e-08 au
  Orbit Determination Parameters
   # obs. used (total)      219  
   data-arc span      9786 days (26.79 yr)  
   first obs. used      1993-03-21  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52802  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 21:45:28  

Additional Information
 Earth MOID = 1.07317 au 
 Jupiter MOID = 2.08569 au 
 T_jup = 3.456 
[ 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 16.5   n/a MPO454180  

172211 (2002 QE84)          Discovered 2002-Aug-27 by NEAT at Palomar
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

Alternate Designations
 2002 QE84 = 1993 FK68 = 2003 WZ114 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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