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146850 (2002 AT99)
Classification: Main-belt Asteroid          SPK-ID: 2146850
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06426058440149285 5.5602e-08  
a 3.164401150726265 3.0157e-08 au
q 2.961054883499839 1.8007e-07 au
i 8.310457769105573 6.0216e-06 deg
node 323.9719949906694 3.4866e-05 deg
peri 24.2567790170339 5.3573e-05 deg
M 220.3207026096451 4.3162e-05 deg
tp 2459798.247163279310
(2022-Aug-06.74716328)
0.00025196 TDB
period 2056.059732158866
5.63
2.9392e-05
8.047e-08
d
yr
n .1750921893801205 2.503e-09 deg/d
Q 3.367747417952692 3.2095e-08 au
  Orbit Determination Parameters
   # obs. used (total)      452  
   data-arc span      7527 days (20.61 yr)  
   first obs. used      1999-10-13  
   last obs. used      2020-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61683  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 14:23:16  

Additional Information
 Earth MOID = 1.9557 au 
 Jupiter MOID = 1.98889 au 
 T_jup = 3.184 
[ 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 14.8   n/a MPO264279  
diameter diameter 5.666 km 0.459 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.087   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146850 (2002 AT99)          Discovered 2002-Jan-08 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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