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13965 (1991 PL8)
Classification: Main-belt Asteroid          SPK-ID: 2013965
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1564765338442073 3.8999e-08  
a 3.09600965382637 1.9471e-08 au
q 2.611556794447415 1.22e-07 au
i 1.398462894344455 4.6012e-06 deg
node 31.03919567727612 0.00018922 deg
peri 256.1426098512281 0.00018983 deg
M 56.27897975577414 1.5032e-05 deg
tp 2458289.438973228295
(2018-Jun-19.93897323)
8.2745e-05 TDB
period 1989.76545281677
5.45
1.8771e-05
5.139e-08
d
yr
n .1809258470591966 1.7068e-09 deg/d
Q 3.580462513205325 2.2518e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1121  
   data-arc span      10238 days (28.03 yr)  
   first obs. used      1991-08-05  
   last obs. used      2019-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56344  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:16:27  

Additional Information
 Earth MOID = 1.595 au 
 Jupiter MOID = 1.58817 au 
 T_jup = 3.204 
[ 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 14.1   n/a MPO378710  
diameter diameter 7.835 km 0.492 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.087   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13965 (1991 PL8)          Discovered 1991-Aug-05 by Holt, H. E. at Palomar
Reference: 20000320/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PL8 = 1991 RZ38 = 1995 DN8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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