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21226 (1995 ON6)
Classification: Main-belt Asteroid          SPK-ID: 2021226
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .110019162439271 5.0645e-08  
a 2.318473217784149 7.4434e-09 au
q 2.063396736225656 1.1773e-07 au
i 6.171939405099414 5.7926e-06 deg
node 184.0847550119589 2.8517e-05 deg
peri 26.54022319636623 3.4092e-05 deg
M 155.5043165924567 1.8685e-05 deg
tp 2458643.517564039990
(2019-Jun-09.01756404)
6.6211e-05 TDB
period 1289.441227995661
3.53
6.2096e-06
1.7e-08
d
yr
n .2791907007344513 1.3445e-09 deg/d
Q 2.573549699342643 8.2624e-09 au
  Orbit Determination Parameters
   # obs. used (total)      806  
   data-arc span      9296 days (25.45 yr)  
   first obs. used      1995-07-04  
   last obs. used      2020-12-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54204  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:41:53  

Additional Information
 Earth MOID = 1.05958 au 
 Jupiter MOID = 2.38669 au 
 T_jup = 3.564 
[ 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 16.09   n/a E2021B10  

21226 (1995 ON6)          Discovered 1995-Jul-24 by Spacewatch at Kitt Peak
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 ON6 = 1998 KW15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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