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90717 (1991 PF3)
Classification: Main-belt Asteroid          SPK-ID: 2090717
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09446744385276075 3.7692e-08  
a 2.564618787463143 1.4828e-08 au
q 2.322345806154734 1.0174e-07 au
i 9.772050472549658 3.5912e-06 deg
node 123.5864609587558 2.6497e-05 deg
peri 205.7697985903636 3.5437e-05 deg
M 351.8248780944055 2.3957e-05 deg
tp 2459034.566254980937
(2020-Jul-04.06625498)
9.9814e-05 TDB
period 1500.14298682748
4.11
1.301e-05
3.562e-08
d
yr
n .2399771242882201 2.0813e-09 deg/d
Q 2.806891768771553 1.6229e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1087  
   data-arc span      11040 days (30.23 yr)  
   first obs. used      1990-05-13  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58013  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:14:01  

Additional Information
 Earth MOID = 1.31415 au 
 Jupiter MOID = 2.48403 au 
 T_jup = 3.406 
[ 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 14.8   n/a MPO436406  
diameter diameter 3.187 km 0.189 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.276   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

90717 (1991 PF3)          Discovered 1991-Aug-02 by Elst, E. W. at La Silla
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1991 PF3 = 2000 WU102 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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