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129956 (1999 TT255)
Classification: Main-belt Asteroid          SPK-ID: 2129956
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05283910780371218 4.5241e-08  
a 2.854697432060857 2.1058e-08 au
q 2.703857766701213 1.3063e-07 au
i 1.776109895500604 5.0979e-06 deg
node 185.7443396724224 0.00015425 deg
peri 246.2922234478052 0.00016498 deg
M 34.38114267219477 5.4949e-05 deg
tp 2458832.249501667869
(2019-Dec-14.74950167)
0.0002691 TDB
period 1761.72676914989
4.82
1.9494e-05
5.337e-08
d
yr
n .2043449678486272 2.2611e-09 deg/d
Q 3.005537097420501 2.2171e-08 au
  Orbit Determination Parameters
   # obs. used (total)      311  
   data-arc span      10136 days (27.75 yr)  
   first obs. used      1992-03-03  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6116  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 10:37:05  

Additional Information
 Earth MOID = 1.71896 au 
 Jupiter MOID = 2.14061 au 
 T_jup = 3.301 
[ 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 16.3   n/a MPO453778  

129956 (1999 TT255)          Discovered 1999-Oct-09 by Spacewatch at Kitt Peak
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

Alternate Designations
 1999 TT255 = 1992 EO37 = 1997 EN26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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