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66194 (1999 AT23)
Classification: Main-belt Asteroid          SPK-ID: 2066194
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2705840319917301 5.0763e-08  
a 2.304026990487721 9.3812e-09 au
q 1.680594077583782 1.1515e-07 au
i 23.68465981786136 5.9754e-06 deg
node 140.0866526988351 1.1482e-05 deg
peri 297.4503955646256 1.6646e-05 deg
M 133.8428936080286 1.3954e-05 deg
tp 2458725.577673255801
(2019-Aug-30.07767326)
4.8655e-05 TDB
period 1277.408407865262
3.50
7.8017e-06
2.136e-08
d
yr
n .2818205969080891 1.7212e-09 deg/d
Q 2.92745990339166 1.192e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1065  
   data-arc span      7899 days (21.63 yr)  
   first obs. used      1998-11-25  
   last obs. used      2020-07-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47952  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:20:08  

Additional Information
 Earth MOID = .798115 au 
 Jupiter MOID = 2.50067 au 
 T_jup = 3.432 
[ 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 14.81   n/a E2021B10  
diameter diameter 2.998 km 0.575 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.311   0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66194 (1999 AT23)          Discovered 1999-Jan-14 by LONEOS at Anderson Mesa
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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