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21208 (1994 PW29)
Classification: Main-belt Asteroid          SPK-ID: 2021208
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1281922336292355 2.9841e-08  
a 2.93343523833544 1.482e-08 au
q 2.557391622926511 8.6965e-08 au
i 10.54207296175169 3.929e-06 deg
node 183.6364691271015 1.9366e-05 deg
peri 211.9454535881596 2.5477e-05 deg
M 40.15227218080823 1.5891e-05 deg
tp 2458995.822167227249
(2020-May-26.32216723)
8.1353e-05 TDB
period 1835.114572505055
5.02
1.3906e-05
3.807e-08
d
yr
n .196173037582376 1.4866e-09 deg/d
Q 3.309478853744368 1.6719e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1347  
   data-arc span      9657 days (26.44 yr)  
   first obs. used      1994-08-12  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51678  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:51:22  

Additional Information
 Earth MOID = 1.56843 au 
 Jupiter MOID = 2.15756 au 
 T_jup = 3.238 
[ 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 14.22   n/a E2021B10  

21208 (1994 PW29)          Discovered 1994-Aug-12 by Elst, E. W. at La Silla
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 PW29 = 1997 GV26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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