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216927 (1998 QQ89)
Classification: Main-belt Asteroid          SPK-ID: 2216927
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1366935870491608 7.9283e-08  
a 2.376995917367618 1.3717e-08 au
q 2.052075819021427 1.9471e-07 au
i 7.547699211489451 3.6635e-06 deg
node 289.3667969555135 5.0793e-05 deg
peri 54.84382052911779 5.3644e-05 deg
M 34.12320411975383 1.5915e-05 deg
tp 2459073.621398269957
(2020-Aug-12.12139827)
5.9785e-05 TDB
period 1338.569979024149
3.66
1.1587e-05
3.172e-08
d
yr
n .2689437277402927 2.328e-09 deg/d
Q 2.701916015713808 1.5592e-08 au
  Orbit Determination Parameters
   # obs. used (total)      560  
   data-arc span      9681 days (26.51 yr)  
   first obs. used      1994-07-11  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52639  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:56:49  

Additional Information
 Earth MOID = 1.05238 au 
 Jupiter MOID = 2.68225 au 
 T_jup = 3.517 
[ 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 16.49   n/a E2021B55  

216927 (1998 QQ89)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20090806/Numbers.arcLast Updated: 2009-08-09

Alternate Designations
 1998 QQ89 = 1994 NN7 = 2002 XV37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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