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JPL Small-Body Database Browser
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39307 (2001 TJ42)
Classification: Main-belt Asteroid          SPK-ID: 2039307
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .186862203727836 6.9084e-08  
a 2.559078221864412 1.2777e-08 au
q 2.080883225814916 1.8149e-07 au
i 8.119923939447824 4.467e-06 deg
node 313.5321377887474 5.4066e-05 deg
peri 121.0206358864823 5.8916e-05 deg
M 198.1559601949842 2.4664e-05 deg
tp 2459672.730135851153
(2022-Apr-03.23013585)
0.00010558 TDB
period 1495.2842823126
4.09
1.1199e-05
3.066e-08
d
yr
n .2407568943634086 1.8031e-09 deg/d
Q 3.037273217913908 1.5165e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1169  
   data-arc span      14159 days (38.77 yr)  
   first obs. used      1980-09-13  
   last obs. used      2019-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45582  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:09:36  

Additional Information
 Earth MOID = 1.10957 au 
 Jupiter MOID = 2.25115 au 
 T_jup = 3.397 
[ 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 14.4   n/a MPO474250  
diameter diameter 3.472 km 0.615 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.368   0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39307 (2001 TJ42)          Discovered 2001-Oct-14 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 TJ42 = 1980 RA7 = 1994 CO8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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