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8617 (1980 PW)
Classification: Main-belt Asteroid          SPK-ID: 2008617
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2139299623958417 4.0113e-08  
a 2.422325636897637 7.1659e-09 au
q 1.904117604485642 9.6836e-08 au
i 4.014534709351392 3.7416e-06 deg
node 310.6627364253161 5.5831e-05 deg
peri 55.39433727147877 5.6445e-05 deg
M 170.5815263776585 7.391e-06 deg
tp 2458348.005717227654
(2018-Aug-17.50571723)
2.7842e-05 TDB
period 1377.042091169901
3.77
6.1105e-06
1.673e-08
d
yr
n .2614299172904387 1.1601e-09 deg/d
Q 2.940533669309632 8.6989e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1962  
   data-arc span      25318 days (69.32 yr)  
   first obs. used      1950-10-06  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4827  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:59:08  

Additional Information
 Earth MOID = .905768 au 
 Jupiter MOID = 2.53761 au 
 T_jup = 3.478 
[ 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 14.0   n/a MPO458915  
diameter diameter 5.058 km 0.249 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.209   0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8617 (1980 PW)          Discovered 1980-Aug-06 by Vavrova, Z. at Klet
Reference: 19980511/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1980 PW = 1950 TO = 1984 SE5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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