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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1573718376149237 3.9901e-08  
a 2.600547774165067 1.0937e-08 au
q 2.191294792139311 1.0197e-07 au
i 13.19472291343533 3.0706e-06 deg
node 148.6444745124429 1.9552e-05 deg
peri 109.0164245953431 2.3231e-05 deg
M 114.3722553009786 1.1888e-05 deg
tp 2458713.853206784441
(2019-Aug-18.35320678)
5.029e-05 TDB
period 1531.777484815429
4.19
9.6633e-06
2.646e-08
d
yr
n .2350210807827471 1.4826e-09 deg/d
Q 3.009800756190823 1.2658e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1122  
   data-arc span      8294 days (22.71 yr)  
   first obs. used      1998-04-23  
   last obs. used      2021-01-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53532  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:25:02  

Additional Information
 Earth MOID = 1.21553 au 
 Jupiter MOID = 2.20329 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 15.11   n/a MPCxxxxx  
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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