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129386 (1027 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2129386
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1102350025487284 5.2947e-08  
a 2.915640224251004 2.3841e-08 au
q 2.59423461669952 1.5071e-07 au
i 8.414370004212101 1.0109e-05 deg
node 178.7673737984888 3.5335e-05 deg
peri 122.5253141202464 5.7842e-05 deg
M 186.7183193756445 4.8252e-05 deg
tp 2459875.784982539982
(2022-Oct-23.28498254)
0.00024707 TDB
period 1818.441468128884
4.98
2.2304e-05
6.107e-08
d
yr
n .1979717281581947 2.4282e-09 deg/d
Q 3.237045831802489 2.6469e-08 au
  Orbit Determination Parameters
   # obs. used (total)      338  
   data-arc span      16564 days (45.35 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56523  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:55:36  

Additional Information
 Earth MOID = 1.59129 au 
 Jupiter MOID = 2.02872 au 
 T_jup = 3.257 
[ 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 15.5   n/a MPO412839  
diameter diameter 5.370 km 0.473 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129386 (1027 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
 1027 T-2 = 1998 RK8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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