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JPL Small-Body Database Browser
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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2705781232672967 5.3918e-08  
a 2.304313478515201 1.0855e-08 au
q 1.680816662079022 1.2391e-07 au
i 23.68440345221805 6.3167e-06 deg
node 140.0859459557166 1.4853e-05 deg
peri 297.4805335050337 1.9284e-05 deg
M 77.44590139754665 1.5509e-05 deg
tp 2458725.643061226658
(2019-Aug-30.14306123)
5.4193e-05 TDB
period 1277.646669130741
3.50
9.0281e-06
2.472e-08
d
yr
n .2817680417426592 1.991e-09 deg/d
Q 2.92781029495138 1.3792e-08 au
  Orbit Determination Parameters
   # obs. used (total)      753  
   data-arc span      7713 days (21.12 yr)  
   first obs. used      1998-11-25  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52553  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 10:46:44  

Additional Information
 Earth MOID = .798362 au 
 Jupiter MOID = 2.50016 au 
 T_jup = 3.431 
[ 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 14.7   n/a MPO453057  
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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