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243254 (2007 WP22)
Classification: Main-belt Asteroid          SPK-ID: 2243254
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1666779042169863 6.4695e-08  
a 2.571136510876461 2.7535e-08 au
q 2.142584865787798 1.5929e-07 au
i 12.46610166739775 7.528e-06 deg
node 247.4038683161788 4.1064e-05 deg
peri 53.70281232721381 5.4764e-05 deg
M 104.7833906085248 3.212e-05 deg
tp 2458562.195351425843
(2019-Mar-19.69535143)
0.00013634 TDB
period 1505.865314820795
4.12
2.419e-05
6.623e-08
d
yr
n .2390652048738114 3.8403e-09 deg/d
Q 2.999688155965125 3.2124e-08 au
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      7277 days (19.92 yr)  
   first obs. used      1999-11-28  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50624  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:14:17  

Additional Information
 Earth MOID = 1.1523 au 
 Jupiter MOID = 2.23688 au 
 T_jup = 3.377 
[ 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 16.7   n/a MPO440238  

243254 (2007 WP22)          Discovered 2007-Nov-17 by Spacewatch at Kitt Peak
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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