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66782 (1999 TT225)
Classification: Main-belt Asteroid          SPK-ID: 2066782
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07141805573934734 4.6168e-08  
a 3.104017031419433 2.9328e-08 au
q 2.882334170053637 1.3813e-07 au
i 9.625958059473666 4.7322e-06 deg
node 184.5719046339853 2.6636e-05 deg
peri 206.0847755159009 4.0336e-05 deg
M 292.3969704807837 3.2756e-05 deg
tp 2459575.601005182630
(2021-Dec-27.10100518)
0.00018376 TDB
period 1997.489799290168
5.47
2.831e-05
7.751e-08
d
yr
n .1802262019700578 2.5543e-09 deg/d
Q 3.325699892785229 3.1423e-08 au
  Orbit Determination Parameters
   # obs. used (total)      491  
   data-arc span      8507 days (23.29 yr)  
   first obs. used      1997-03-06  
   last obs. used      2020-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57452  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:24:55  

Additional Information
 Earth MOID = 1.88854 au 
 Jupiter MOID = 2.05406 au 
 T_jup = 3.195 
[ 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 15.16   n/a E2021B10  
diameter diameter 4.762 km 0.299 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66782 (1999 TT225)          Discovered 1999-Oct-02 by Spacewatch at Kitt Peak
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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