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JPL Small-Body Database Browser
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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06606353370262683 5.6669e-08  
a 2.751712187544333 2.0739e-08 au
q 2.569924356702569 1.5663e-07 au
i 5.378779866920918 5.9292e-06 deg
node 150.7687328480123 4.5291e-05 deg
peri 191.2012888400571 5.5055e-05 deg
M 223.6098470135298 3.0533e-05 deg
tp 2459632.160112998162
(2022-Feb-21.66011300)
0.00014129 TDB
period 1667.258491174918
4.56
1.8849e-05
5.161e-08
d
yr
n .2159233267699887 2.441e-09 deg/d
Q 2.933500018386097 2.2109e-08 au
  Orbit Determination Parameters
   # obs. used (total)      560  
   data-arc span      10648 days (29.15 yr)  
   first obs. used      1990-11-12  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61146  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 05:50:58  

Additional Information
 Earth MOID = 1.5615 au 
 Jupiter MOID = 2.3421 au 
 T_jup = 3.336 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456824.5 (2014-Jun-16.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06357101366518061 5.6272e-08  
q 2.579487180122147 1.5481e-07 au
tp 2456290.071911611018
(2012-Dec-28.57191161)
0.00015332 TDB
node 150.8047303960666 4.5364e-05 deg
peri 190.1713586503801 5.5972e-05 deg
i 5.371340670523805 5.921e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      560  
   data-arc span      10648 days (29.15 yr)  
   first obs. used      1990-11-12  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61146  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 05:50:58  

Additional Information
 Jupiter MOID = 2.3421 au 
 T_jup = 3.336 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.16649793068622E-15 -8.642340956218483E-15 7.341528698364524E-13 1.662714384791345E-14 8.386586598461485E-14 -1.594568969773444E-15
q -8.642340956218483E-15 2.396564497287088E-14 -2.724130286404421E-12 -4.601596703424192E-14 -3.558331824540288E-13 4.762584251833853E-15
tp 7.341528698364524E-13 -2.724130286404421E-12 2.350743215411081E-8 1.269493654181389E-11 5.035086208270672E-9 -5.490634832539282E-12
node 1.662714384791345E-14 -4.601596703424192E-14 1.269493654181389E-11 2.057904743248008E-9 -2.046167547922423E-9 6.700420042287255E-11
peri 8.386586598461485E-14 -3.558331824540288E-13 5.035086208270672E-9 -2.046167547922423E-9 3.132897462301933E-9 -6.783903758547697E-11
i -1.594568969773444E-15 4.762584251833853E-15 -5.490634832539282E-12 6.700420042287255E-11 -6.783903758547697E-11 3.505865037133839E-11

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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