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216980 (2000 QU21)
Classification: Main-belt Asteroid          SPK-ID: 2216980
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1070616463670069 3.9406e-08  
a 2.415199198239422 1.5055e-08 au
q 2.156623995771635 9.232e-08 au
i 6.035192788260417 5.8436e-06 deg
node 339.8119610890284 3.5117e-05 deg
peri 292.0274400766023 4.7939e-05 deg
M 205.7371630990389 3.6547e-05 deg
tp 2459787.971325684866
(2022-Jul-27.47132568)
0.00014259 TDB
period 1370.969713089946
3.75
1.2819e-05
3.51e-08
d
yr
n .2625878577496928 2.4552e-09 deg/d
Q 2.67377440070721 1.6667e-08 au
  Orbit Determination Parameters
   # obs. used (total)      512  
   data-arc span      7475 days (20.47 yr)  
   first obs. used      2000-08-24  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55412  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:57:05  

Additional Information
 Earth MOID = 1.14745 au 
 Jupiter MOID = 2.43786 au 
 T_jup = 3.502 
[ 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 16.42   n/a MPCxxxxx  

216980 (2000 QU21)          Discovered 2000-Aug-24 by LINEAR at Socorro
Reference: 20090806/Numbers.arcLast Updated: 2009-08-09

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