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100970 (1998 QZ21)
Classification: Main-belt Asteroid          SPK-ID: 2100970
[ 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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1882346329948595 5.8544e-08  
a 2.556521841237411 1.6075e-08 au
q 2.075295890708745 1.4215e-07 au
i 2.585854349207074 7.5369e-06 deg
node 282.4786534126309 0.0001049 deg
peri 63.07260700984153 0.00010748 deg
M 109.5099887552692 2.4532e-05 deg
tp 2458546.324271391920
(2019-Mar-03.82427139)		 9.931e-05 TDB
period 1493.044279862932
4.09		 1.4082e-05
3.855e-08		 d
yr
n .2411181000157942 2.2741e-09 deg/d
Q 3.037747791766078 1.91e-08 au
   Orbit Determination Parameters
   # obs. used (total)      387  
   data-arc span      7834 days (21.45 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58982  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:14:10  

Additional Information
 Earth MOID = 1.06954 au 
 Jupiter MOID = 2.38264 au 
 T_jup = 3.411 
[ 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 15.7   n/a MPO453463  

100970 (1998 QZ21)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 QZ21 = 2002 NW23 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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