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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1729461869090481 6.2634e-08  
a 2.733752545072724 1.8199e-08 au
q 2.260960466449491 1.7347e-07 au
i 4.135577734244856 7.5085e-06 deg
node 344.3400752431659 7.33e-05 deg
peri 40.16784868290674 7.5547e-05 deg
M 268.7861451297116 2.0431e-05 deg
tp 2459418.807389798115
(2021-Jul-23.30738980)
9.6436e-05 TDB
period 1650.962570779083
4.52
1.6486e-05
4.514e-08
d
yr
n .2180546103053792 2.1775e-09 deg/d
Q 3.206544623695958 2.1347e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57843  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:14:45  

Additional Information
 Earth MOID = 1.26639 au 
 Jupiter MOID = 2.26731 au 
 T_jup = 3.327 
[ 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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