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102499 (1999 TD282)
Classification: Main-belt Asteroid          SPK-ID: 2102499
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1854998210286812 4.9148e-08  
a 2.605864372398068 1.2946e-08 au
q 2.12247699769321 1.2711e-07 au
i 27.1788218042837 4.2155e-06 deg
node 177.2987456111653 9.6546e-06 deg
peri 261.9806573081726 1.7787e-05 deg
M 356.3636994314933 1.1554e-05 deg
tp 2459216.019703226643
(2021-Jan-01.51970323)		 4.9265e-05 TDB
period 1536.477267577937
4.21		 1.145e-05
3.135e-08		 d
yr
n .2343021973683312 1.746e-09 deg/d
Q 3.089251747102927 1.5347e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1000  
   data-arc span      7774 days (21.28 yr)  
   first obs. used      1999-10-08  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49476  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:31:36  

Additional Information
 Earth MOID = 1.29206 au 
 Jupiter MOID = 2.45703 au 
 T_jup = 3.234 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO439699  
diameter diameter 5.235 km 0.345 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.085   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102499 (1999 TD282)          Discovered 1999-Oct-08 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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