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249649 (1999 TC256)
Classification: Main-belt Asteroid          SPK-ID: 2249649
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2322825023269075 4.8993e-08  
a 2.335408820121815 1.0333e-08 au
q 1.792934215427589 1.1231e-07 au
i 4.72606320174887 5.2583e-06 deg
node 222.1255744514937 5.7582e-05 deg
peri 173.8313267655502 5.8809e-05 deg
M 149.062798159791 9.5528e-06 deg
tp 2458060.728972793205
(2017-Nov-03.22897279)
3.455e-05 TDB
period 1303.59534500448
3.57
8.6516e-06
2.369e-08
d
yr
n .2761593169073204 1.8328e-09 deg/d
Q 2.87788342481604 1.2733e-08 au
  Orbit Determination Parameters
   # obs. used (total)      346  
   data-arc span      7200 days (19.71 yr)  
   first obs. used      1999-08-08  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57282  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:23:23  

Additional Information
 Earth MOID = .799455 au 
 Jupiter MOID = 2.54956 au 
 T_jup = 3.527 
[ 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 16.9   n/a MPO437159  
diameter diameter 3.025 km 0.686 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.040   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

249649 (1999 TC256)          Discovered 1999-Oct-09 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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