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129717 (1998 TT34)
Classification: Main-belt Asteroid          SPK-ID: 2129717
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1337769449798707 7.483e-08  
a 2.920038266407572 1.6915e-08 au
q 2.529404467903249 2.1806e-07 au
i 3.027195884332927 4.356e-06 deg
node 122.9658595354847 9.6529e-05 deg
peri 252.7928288917946 9.7716e-05 deg
M 128.9557355088964 1.5817e-05 deg
tp 2458347.640988442765
(2018-Aug-17.14098844)
7.8387e-05 TDB
period 1822.557509622287
4.99
1.5836e-05
4.336e-08
d
yr
n .1975246312389932 1.7163e-09 deg/d
Q 3.310672064911895 1.9177e-08 au
  Orbit Determination Parameters
   # obs. used (total)      942  
   data-arc span      7886 days (21.59 yr)  
   first obs. used      1998-09-18  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51122  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 21:46:36  

Additional Information
 Earth MOID = 1.53261 au 
 Jupiter MOID = 2.15497 au 
 T_jup = 3.265 
[ 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 15.0   n/a MPO453775  
rotation period rot_per 2.51 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

129717 (1998 TT34)          Discovered 1998-Oct-14 by LONEOS at Anderson Mesa
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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