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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08894652549499779 6.2915e-08  
a 3.08647913828471 3.7373e-08 au
q 2.81194754292149 2.1302e-07 au
i 19.38301755699269 6.2069e-06 deg
node 128.2040240531063 1.9738e-05 deg
peri 204.927681003497 4.2803e-05 deg
M 273.0504272414656 4.0938e-05 deg
tp 2459478.863899293829
(2021-Sep-21.36389929)
0.00022745 TDB
period 1980.584818099354
5.42
3.5974e-05
9.849e-08
d
yr
n .1817644953703472 3.3014e-09 deg/d
Q 3.361010733647929 4.0698e-08 au
  Orbit Determination Parameters
   # obs. used (total)      352  
   data-arc span      7593 days (20.79 yr)  
   first obs. used      1999-07-13  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .72503  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:15:05  

Additional Information
 Earth MOID = 1.80865 au 
 Jupiter MOID = 1.97219 au 
 T_jup = 3.133 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456941.5 (2014-Oct-11.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08797131776267668 6.291e-08  
q 2.815175655550831 2.1286e-07 au
tp 2457502.412512439242
(2016-Apr-23.91251244)
0.00022292 TDB
node 128.2215948482124 1.9743e-05 deg
peri 205.7821382135912 4.3191e-05 deg
i 19.3790741162301 6.2056e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      352  
   data-arc span      7593 days (20.79 yr)  
   first obs. used      1999-07-13  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .72503  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:15:05  

Additional Information
 Jupiter MOID = 1.97219 au 
 T_jup = 3.133 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.957616734673906E-15 -1.325751841926507E-14 -4.308519313225761E-13 -2.141846799760381E-14 3.685955855960672E-14 -2.795413125678995E-15
q -1.325751841926507E-14 4.531079481886717E-14 2.238634834958972E-12 7.880440625909544E-14 -3.651239750976207E-14 1.346340487344448E-14
tp -4.308519313225761E-13 2.238634834958972E-12 4.969208476499045E-8 5.568543864463781E-11 8.614612927082392E-9 2.295449939134241E-11
node -2.141846799760381E-14 7.880440625909544E-14 5.568543864463781E-11 3.898043740839466E-10 -3.581329525215175E-10 8.13295434923146E-12
peri 3.685955855960672E-14 -3.651239750976207E-14 8.614612927082392E-9 -3.581329525215175E-10 1.865496132861569E-9 -3.691452371335085E-12
i -2.795413125678995E-15 1.346340487344448E-14 2.295449939134241E-11 8.13295434923146E-12 -3.691452371335085E-12 3.850945885766283E-11

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1931-Aug-07 19:16 00:04 Jupiter 1.97507675736586 1.97507620791227 1.97507730682013 5.3532449659923 5.27252507633812 2426561.302886214 4.00770664710943 466.327941444233 26.2919651078582 89.5438407050976 3219883.61230624 T 11 CATAB v2.0f-lin.ifort 2020-May-21 03:15:23 2020-May-21 03:15
2061-Nov-26 05:36 00:02 Jupiter 1.97718789814387 1.97718734617616 1.97718845011159 5.34531324215924 5.26455871766151 2474154.733343685 2.37555414166836 289.236231394997 26.6839228655352 89.8080299656509 3148132.53110383 T 11 CATAB v2.0f-lin.ifort 2020-May-21 03:15:23 2020-May-21 03:15
2192-Mar-19 17:49 00:09 Jupiter 1.98528110064897 1.98527984436363 1.98528235706803 5.34205954890874 5.26158701083274 2521750.242170409 8.81126777998118 926.979198159028 28.5660584635922 86.3932342609718 3202934.92987841 T 11 CATAB v2.0f-lin.ifort 2020-May-21 03:15:23 2020-May-21 03:15
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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