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172073 (2002 AF85)
Classification: Main-belt Asteroid          SPK-ID: 2172073
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08894651697957179 6.0546e-08  
a 3.086479133034669 3.5815e-08 au
q 2.811947564421107 2.0862e-07 au
i 19.38301905221372 5.1662e-06 deg
node 128.2040259661375 1.9327e-05 deg
peri 204.927677844992 4.2465e-05 deg
M 273.0504304239707 4.0568e-05 deg
tp 2459478.863880564349
(2021-Sep-21.36388056)
0.0002251 TDB
period 1980.58481304595
5.42
3.4473e-05
9.438e-08
d
yr
n .181764495834114 3.1637e-09 deg/d
Q 3.361010701648231 3.9e-08 au
  Orbit Determination Parameters
   # obs. used (total)      401  
   data-arc span      7643 days (20.93 yr)  
   first obs. used      1999-07-13  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .7064  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 03:25:09  

Additional Information
 Earth MOID = 1.80865 au 
 Jupiter MOID = 1.97219 au 
 T_jup = 3.133 
[ 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 MPO260218  
diameter diameter 6.072 km 0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172073 (2002 AF85)          Discovered 2002-Jan-09 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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