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100987 (1998 QR33)
Classification: Main-belt Asteroid          SPK-ID: 2100987
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2896146167555854 5.593e-08  
a 2.556640285780221 1.4237e-08 au
q 1.816199889232092 1.37e-07 au
i 4.474122693305676 4.4817e-06 deg
node 230.9002771440959 7.944e-05 deg
peri 138.4339452640358 8.0331e-05 deg
M 146.2959423086867 2.0649e-05 deg
tp 2458593.718056506685
(2019-Apr-20.21805651)
8.1692e-05 TDB
period 1493.148040953031
4.09
1.2472e-05
3.415e-08
d
yr
n .2411013443584756 2.0139e-09 deg/d
Q 3.29708068232835 1.8361e-08 au
  Orbit Determination Parameters
   # obs. used (total)      469  
   data-arc span      11100 days (30.39 yr)  
   first obs. used      1990-10-24  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58157  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:40  

Additional Information
 Earth MOID = .817422 au 
 Jupiter MOID = 2.18934 au 
 T_jup = 3.373 
[ 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 15.56   n/a E2021B55  

100987 (1998 QR33)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 QR33 = 2002 LW57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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