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66803 (1999 TD273)
Classification: Main-belt Asteroid          SPK-ID: 2066803
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .137501097138476 3.1507e-08  
a 2.774042138819408 2.0939e-08 au
q 2.392608301223374 9.1156e-08 au
i 35.15124217251777 5.7893e-07 deg
node 269.3920840771064 7.6986e-07 deg
peri 158.3462930042413 6.9498e-06 deg
M 141.085573737474 8.8327e-06 deg
tp 2458539.124480682712
(2019-Feb-24.62448068)
3.571e-05 TDB
period 1687.594136288242
4.62
1.9108e-05
5.231e-08
d
yr
n .2133214333108537 2.4153e-09 deg/d
Q 3.155475976415441 2.3819e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1245  
   data-arc span      12700 days (34.77 yr)  
   first obs. used      1985-09-17  
   last obs. used      2020-06-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36518  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:25:02  

Additional Information
 Earth MOID = 1.42185 au 
 Jupiter MOID = 2.13166 au 
 T_jup = 3.058 
[ 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 12.96   n/a MPCxxxxx  
diameter diameter 7.533 km 0.143 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.212   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66803 (1999 TD273)          Discovered 1999-Oct-05 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TD273 = 2000 WG61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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