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79231 (1994 PO22)
Classification: Main-belt Asteroid          SPK-ID: 2079231
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1709653059595569 4.5872e-08  
a 2.377003290433245 8.8329e-09 au
q 1.970618195617452 1.1137e-07 au
i 6.669122682764041 4.9878e-06 deg
node 345.8103973393637 3.0963e-05 deg
peri 339.9214280465538 3.3197e-05 deg
M 19.28338079606004 1.1774e-05 deg
tp 2458928.799236873262
(2020-Mar-20.29923687)
4.3667e-05 TDB
period 1338.576207077728
3.66
7.4612e-06
2.043e-08
d
yr
n .2689424764137434 1.4991e-09 deg/d
Q 2.783388385249038 1.0343e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1682  
   data-arc span      9485 days (25.97 yr)  
   first obs. used      1994-08-12  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47608  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:34:34  

Additional Information
 Earth MOID = .960657 au 
 Jupiter MOID = 2.55578 au 
 T_jup = 3.512 
[ 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 14.7   n/a MPO385313  
diameter diameter 2.544 km 0.834 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.432   0.257 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79231 (1994 PO22)          Discovered 1994-Aug-12 by Elst, E. W. at La Silla
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1994 PO22 = 2000 CQ84 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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