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39624 (1994 PT8)
Classification: Main-belt Asteroid          SPK-ID: 2039624
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06568541168322953 5.6713e-08  
a 2.75264217329533 2.0875e-08 au
q 2.571833738925807 1.5673e-07 au
i 5.37787937496476 5.9291e-06 deg
node 150.7676598606342 4.5361e-05 deg
peri 191.2473100050835 5.5272e-05 deg
M 137.2107681333824 3.0829e-05 deg
tp 2457964.717220206878
(2017-Jul-30.21722021)
0.00014361 TDB
period 1668.103778145372
4.57
1.8975e-05
5.195e-08
d
yr
n .2158139108109056 2.455e-09 deg/d
Q 2.933450607664853 2.2246e-08 au
  Orbit Determination Parameters
   # obs. used (total)      556  
   data-arc span      10315 days (28.24 yr)  
   first obs. used      1990-11-12  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62767  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:07:41  

Additional Information
 Earth MOID = 1.5625 au 
 Jupiter MOID = 2.3409 au 
 T_jup = 3.335 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO426180  
diameter diameter 4.171 km 0.320 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.077   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39624 (1994 PT8)          Discovered 1994-Aug-10 by Elst, E. W. at La Silla
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 PT8 = 1999 TO238 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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