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79227 (1994 PK17)
Classification: Main-belt Asteroid          SPK-ID: 2079227
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .187023461612572 6.356e-08  
a 2.515719921300658 8.3027e-09 au
q 2.045221273171302 1.59e-07 au
i 4.410236855351181 6.1588e-06 deg
node 161.4407223805712 3.6226e-05 deg
peri 204.22981122 3.8531e-05 deg
M 144.7685378188971 1.0865e-05 deg
tp 2458414.411031118432
(2018-Oct-22.91103112)
4.3341e-05 TDB
period 1457.44394449374
3.99
7.2151e-06
1.975e-08
d
yr
n .2470077846630666 1.2228e-09 deg/d
Q 2.986218569430014 9.8555e-09 au
  Orbit Determination Parameters
   # obs. used (total)      882  
   data-arc span      9306 days (25.48 yr)  
   first obs. used      1994-08-10  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5653  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:37:53  

Additional Information
 Earth MOID = 1.04426 au 
 Jupiter MOID = 2.47288 au 
 T_jup = 3.430 
[ 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 16.1   n/a MPO459361  
diameter diameter 3.679 km 0.172 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79227 (1994 PK17)          Discovered 1994-Aug-10 by Elst, E. W. at La Silla
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1994 PK17 = 1998 QR61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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