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523995 (1999 TT81)
Classification: Main-belt Asteroid          SPK-ID: 2523995
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1102470504543167 6.0497e-08  
a 2.845325930627203 4.0268e-08 au
q 2.53163713919437 1.8503e-07 au
i 11.66938747181965 7.7612e-06 deg
node 190.19965466149 3.3432e-05 deg
peri 212.7614373497225 4.994e-05 deg
M 83.48627546610265 3.7304e-05 deg
tp 2458593.954605758870
(2019-Apr-20.45460576)
0.00017893 TDB
period 1753.058704675728
4.80
3.7215e-05
1.019e-07
d
yr
n .2053553592014997 4.3594e-09 deg/d
Q 3.159014722060036 4.4708e-08 au
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      7375 days (20.19 yr)  
   first obs. used      1999-10-12  
   last obs. used      2019-12-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59462  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:40:46  

Additional Information
 Earth MOID = 1.5468 au 
 Jupiter MOID = 2.29685 au 
 T_jup = 3.268 
[ 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 MPO441671  

523995 (1999 TT81)          Discovered 1999-Oct-12 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-05-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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