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JPL Small-Body Database Browser
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312999 (1999 TU255)
Classification: Main-belt Asteroid          SPK-ID: 2312999
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .15842617798813 8.131e-08  
a 2.402509753401769 1.4675e-08 au
q 2.021889315591122 1.9429e-07 au
i 1.058044156794707 7.4591e-06 deg
node 358.1434160688677 0.00029264 deg
peri 33.37290474668661 0.00029385 deg
M 68.62888569576701 2.0762e-05 deg
tp 2458341.201136834295
(2018-Aug-10.70113683)
7.8227e-05 TDB
period 1360.179315069534
3.72
1.2463e-05
3.412e-08
d
yr
n .2646709856645603 2.425e-09 deg/d
Q 2.783130191212416 1.7e-08 au
  Orbit Determination Parameters
   # obs. used (total)      178  
   data-arc span      7996 days (21.89 yr)  
   first obs. used      1997-02-14  
   last obs. used      2019-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56875  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:19:49  

Additional Information
 Earth MOID = 1.02697 au 
 Jupiter MOID = 2.6486 au 
 T_jup = 3.507 
[ 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 17.6   n/a MPO321620  

312999 (1999 TU255)          Discovered 1999-Oct-09 by Spacewatch at Kitt Peak
Reference: 20120207/Numbers.arcLast Updated: 2012-02-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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