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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1883477976350939 5.4038e-08  
a 2.556469677302827 1.5694e-08 au
q 2.07496424386194 1.3122e-07 au
i 2.585657362891473 6.1585e-06 deg
node 282.4763198267891 0.00010019 deg
peri 63.09513848671345 0.00010206 deg
M 157.6981119481163 2.3269e-05 deg
tp 2458546.491506267453
(2019-Mar-03.99150627)
9.2173e-05 TDB
period 1492.998583402059
4.09
1.3748e-05
3.764e-08
d
yr
n .241125479958378 2.2204e-09 deg/d
Q 3.037975110743714 1.865e-08 au
  Orbit Determination Parameters
   # obs. used (total)      428  
   data-arc span      8244 days (22.57 yr)  
   first obs. used      1998-08-17  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5738  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:35  

Additional Information
 Earth MOID = 1.06742 au 
 Jupiter MOID = 2.38294 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 15.8   n/a MPO532313  

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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