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66804 (1999 TE281)
Classification: Main-belt Asteroid          SPK-ID: 2066804
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1574836975303888 4.7194e-08  
a 2.600870187802415 1.2749e-08 au
q 2.191275533830733 1.238e-07 au
i 13.19432384080096 3.3536e-06 deg
node 148.6433946549933 2.4265e-05 deg
peri 109.0620158783983 2.8408e-05 deg
M 67.3118990867017 1.2435e-05 deg
tp 2458714.038814663030
(2019-Aug-18.53881466)
5.3059e-05 TDB
period 1532.062356292706
4.19
1.1265e-05
3.084e-08
d
yr
n .2349773809932452 1.7277e-09 deg/d
Q 3.010464841774096 1.4756e-08 au
  Orbit Determination Parameters
   # obs. used (total)      907  
   data-arc span      7793 days (21.34 yr)  
   first obs. used      1998-04-23  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5514  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 15:03:38  

Additional Information
 Earth MOID = 1.21712 au 
 Jupiter MOID = 2.20394 au 
 T_jup = 3.360 
[ 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 MPO337770  
diameter diameter 2.424 km 0.651 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.301   0.136 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66804 (1999 TE281)          Discovered 1999-Oct-08 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TE281 = 1998 KC59 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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