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266705 (2009 QZ21)
Classification: Main-belt Asteroid          SPK-ID: 2266705
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .174540341271336 5.3112e-08  
a 2.41049615978128 2.3574e-08 au
q 1.989767337419811 1.2415e-07 au
i 3.821581981550463 5.6227e-06 deg
node 108.3318784572325 9.3226e-05 deg
peri 215.6791536752987 9.5802e-05 deg
M 324.4587093394601 2.7308e-05 deg
tp 2459135.454940140420
(2020-Oct-12.95494014)
0.00010476 TDB
period 1366.967196396503
3.74
2.0053e-05
5.49e-08
d
yr
n .263356722055222 3.8634e-09 deg/d
Q 2.83122498214275 2.7689e-08 au
  Orbit Determination Parameters
   # obs. used (total)      215  
   data-arc span      9004 days (24.65 yr)  
   first obs. used      1994-08-12  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5964  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:49:19  

Additional Information
 Earth MOID = .978933 au 
 Jupiter MOID = 2.48654 au 
 T_jup = 3.496 
[ 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 17.0   n/a MPO232383  

266705 (2009 QZ21)          Discovered 2009-Aug-20 by La Sagra at La Sagra
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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