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129392 (1339 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2129392
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02964651954780779 5.0298e-08  
a 2.959373168855485 2.7332e-08 au
q 2.871638054355752 1.5892e-07 au
i 10.22316707100654 5.4868e-06 deg
node 12.14626874223678 2.4559e-05 deg
peri 31.06191860581315 8.2453e-05 deg
M 23.40664700935633 7.7574e-05 deg
tp 2458879.597653529216
(2020-Jan-31.09765353)
0.00040063 TDB
period 1859.507887314403
5.09
2.5761e-05
7.053e-08
d
yr
n .1935996090449127 2.682e-09 deg/d
Q 3.047108283355216 2.8142e-08 au
  Orbit Determination Parameters
   # obs. used (total)      601  
   data-arc span      16855 days (46.15 yr)  
   first obs. used      1973-09-20  
   last obs. used      2019-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55795  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 11:51:22  

Additional Information
 Earth MOID = 1.88121 au 
 Jupiter MOID = 2.06654 au 
 T_jup = 3.242 
[ 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 14.9   n/a MPO453772  
diameter diameter 3.462 km 0.935 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.177   0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129392 (1339 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

Alternate Designations
 1339 T-2 = 2004 XW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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