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JPL Small-Body Database Browser
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39443 (2394 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2039443
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1165654298309769 6.1201e-08  
a 3.157664803783083 2.5066e-08 au
q 2.78959024866796 1.8863e-07 au
i 25.04980722947621 6.2592e-06 deg
node 17.32123397005268 1.2213e-05 deg
peri 22.9250461582944 2.8565e-05 deg
M 202.3083326334315 2.5128e-05 deg
tp 2459898.246479883150
(2022-Nov-14.74647988)
0.00014708 TDB
period 2049.497847001978
5.61
2.4404e-05
6.681e-08
d
yr
n .1756527827177818 2.0916e-09 deg/d
Q 3.525739358898206 2.7988e-08 au
  Orbit Determination Parameters
   # obs. used (total)      663  
   data-arc span      21671 days (59.33 yr)  
   first obs. used      1960-09-28  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56833  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:26:02  

Additional Information
 Earth MOID = 1.80584 au 
 Jupiter MOID = 1.97227 au 
 T_jup = 3.050 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457005.5 (2014-Dec-14.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1175039527063946 6.0913e-08  
q 2.786650246967785 1.8757e-07 au
tp 2457852.376303263391
(2017-Apr-08.87630326)
0.00013827 TDB
node 17.348079610057 1.2213e-05 deg
peri 23.58639521472717 2.8454e-05 deg
i 25.0528141627246 6.2593e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      663  
   data-arc span      21671 days (59.33 yr)  
   first obs. used      1960-09-28  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56833  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:26:02  

Additional Information
 Jupiter MOID = 1.97227 au 
 T_jup = 3.050 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.710450978764516E-15 -1.135069424110454E-14 -1.52612756529852E-12 -5.006987510658881E-16 -4.57817197313913E-13 -1.192151578415551E-14
q -1.135069424110454E-14 3.518433321940141E-14 5.533289140333891E-12 1.663368147396166E-15 1.515745332552564E-12 3.610166166063315E-14
tp -1.52612756529852E-12 5.533289140333891E-12 1.911879310066038E-8 2.350148875390133E-11 3.548774311723719E-9 -3.439144352463559E-11
node -5.006987510658881E-16 1.663368147396166E-15 2.350148875390133E-11 1.491528705526601E-10 -1.305548790618757E-10 -7.926263806721603E-13
peri -4.57817197313913E-13 1.515745332552564E-12 3.548774311723719E-9 -1.305548790618757E-10 8.096087623133903E-10 -5.096129685295353E-12
i -1.192151578415551E-14 3.610166166063315E-14 -3.439144352463559E-11 -7.926263806721603E-13 -5.096129685295353E-12 3.917860332814731E-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 14.2   n/a MPO436046  
diameter diameter 10.404 km 0.222 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.034   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39443 (2394 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2394 T-3 = 2000 XB45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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