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39684 (1996 PD8)
Classification: Main-belt Asteroid          SPK-ID: 2039684
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06953685818866953 3.6799e-08  
a 2.916861074738442 1.8584e-08 au
q 2.714031719828304 1.0703e-07 au
i 2.887306868329869 4.3766e-06 deg
node 140.1388547743548 8.3097e-05 deg
peri 239.2592461083535 8.9147e-05 deg
M 147.855118601749 3.2532e-05 deg
tp 2457853.181200607984
(2017-Apr-09.68120061)
0.00016307 TDB
period 1819.58372713343
4.98
1.739e-05
4.761e-08
d
yr
n .1978474497390365 1.8908e-09 deg/d
Q 3.119690429648579 1.9876e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1155  
   data-arc span      8279 days (22.67 yr)  
   first obs. used      1996-08-08  
   last obs. used      2019-04-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52402  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:07:58  

Additional Information
 Earth MOID = 1.71645 au 
 Jupiter MOID = 2.23678 au 
 T_jup = 3.276 
[ 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 14.2   n/a MPO337580  
diameter diameter 4.480 km 0.978 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.116   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39684 (1996 PD8)          Discovered 1996-Aug-08 by Elst, E. W. at La Silla
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 PD8 = 2001 QE5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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