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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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1564765597935306 3.3292e-08  
a 3.096009643872744 1.7843e-08 au
q 2.611556705711943 1.003e-07 au
i 1.398463379785775 4.5657e-06 deg
node 31.0391064612576 0.00015454 deg
peri 256.1427052550636 0.00015522 deg
M 56.27897738986308 1.4917e-05 deg
tp 2458289.438987805069
(2018-Jun-19.93898781)
8.1947e-05 TDB
period 1989.765443221169
5.45
1.7201e-05
4.709e-08
d
yr
n .1809258479317076 1.5641e-09 deg/d
Q 3.580462582033545 2.0635e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1284  
   data-arc span      10342 days (28.31 yr)  
   first obs. used      1991-08-05  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54422  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:40:31  

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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