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101021 (1998 QR59)
Classification: Main-belt Asteroid          SPK-ID: 2101021
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1722922259584928 6.2738e-08  
a 2.733311322989892 1.8831e-08 au
q 2.26238303091441 1.7315e-07 au
i 4.138029376771783 7.5134e-06 deg
node 344.2972791713272 7.3203e-05 deg
peri 40.18486678528318 7.5472e-05 deg
M 312.3541349694767 2.0771e-05 deg
tp 2459418.951380189368
(2021-Jul-23.45138019)
9.6697e-05 TDB
period 1650.56289392147
4.52
1.7057e-05
4.67e-08
d
yr
n .218107411311482 2.2539e-09 deg/d
Q 3.204239615065373 2.2075e-08 au
  Orbit Determination Parameters
   # obs. used (total)      401  
   data-arc span      7548 days (20.67 yr)  
   first obs. used      1998-08-26  
   last obs. used      2019-04-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57838  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:49  

Additional Information
 Earth MOID = 1.26652 au 
 Jupiter MOID = 2.27079 au 
 T_jup = 3.328 
[ 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 15.9   n/a MPO436471  

101021 (1998 QR59)          Discovered 1998-Aug-26 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 QR59 = 2000 CC116 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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