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52172 (2166 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2052172
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06946945823459622 3.5392e-08  
a 3.184041789575593 1.9677e-08 au
q 2.962848131457462 1.1735e-07 au
i 4.622975756539761 4.9815e-06 deg
node 359.8340756092471 4.6195e-05 deg
peri 126.2678882882915 6.0987e-05 deg
M 29.96118474586036 3.7493e-05 deg
tp 2459223.787787657046
(2021-Jan-09.28778766)
0.00021635 TDB
period 2075.231569474373
5.68
1.9237e-05
5.267e-08
d
yr
n .1734746161803923 1.6081e-09 deg/d
Q 3.405235447693724 2.1044e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1434  
   data-arc span      17398 days (47.63 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-05-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51129  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:52:41  

Additional Information
 Earth MOID = 1.98154 au 
 Jupiter MOID = 1.62727 au 
 T_jup = 3.190 
[ 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 14.07   n/a MPCxxxxx  
diameter diameter 10.367 km 0.149 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52172 (2166 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ 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
1917-Mar-19 01:59 00:03 Jupiter 1.93707898763446 1.93707786076273 1.9370801145063 3.72046071488107 3.60101264636407 2421306.582405986 3.09301622193031 65.8896143297809 32.3904735366505 49.3497906060424 2355506.60758755 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 21:52:44 2021-Jul-08 21:52
1928-Feb-11 13:58 00:03 Jupiter 1.77696991855981 1.77696917087192 1.77697066624831 3.22471735653204 3.07334809123511 2425288.081765103 2.71645946850988 106.839254587566 23.7498028943205 79.9284912940703 2587534.9189853 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 21:52:44 2021-Jul-08 21:52
1939-Jan-15 08:21 00:02 Jupiter 1.71248373229365 1.71248326495635 1.71248419963094 2.94657060642061 2.77363400088239 2429278.847744400 2.30429284494299 107.125375057247 16.1313253470079 -87.447956920507 2663768.03077183 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 21:52:44 2021-Jul-08 21:52
1949-Dec-23 13:56 00:02 Jupiter 1.76665223021857 1.76665162570187 1.76665283473517 2.84894956295264 2.67537144480703 2433274.080592561 1.93944185782586 52.647969966851 24.5150858029255 -84.3430807835079 3053064.94234036 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 21:52:44 2021-Jul-08 21:52
1960-Nov-28 17:39 00:02 Jupiter 1.91236217152878 1.9123615395608 1.91236280349665 3.01865687208134 2.86817891638775 2437267.235221848 1.58509283788172 47.2061969890943 23.1102413971851 74.2889634102728 3143801.87574204 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 21:52:44 2021-Jul-08 21:52
2059-Jul-18 00:07 00:01 Jupiter 1.90240964977591 1.90240901545904 1.90241028409278 3.53331226475514 3.40497022717249 2473292.504921412 1.20717124788578 39.995406784239 25.6703152555005 88.3209255893139 2640569.2957155 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 21:52:44 2021-Jul-08 21:52
2070-Jun-12 22:28 00:02 Jupiter 1.75039780025721 1.75039717446423 1.75039842605019 3.09281030151586 2.93217834218311 2477275.435983505 1.52388193444296 68.9685174902057 22.246830210209 85.1387355766997 2420010.26084322 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 21:52:44 2021-Jul-08 21:52
2081-May-17 08:07 00:02 Jupiter 1.69992974524298 1.6999292995808 1.69993019090506 2.89888196579482 2.72157645426809 2481266.838257304 1.84453918090638 90.8058089252435 15.5796984775054 -88.2975272408357 2652532.94064173 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 21:52:44 2021-Jul-08 21:52
2092-Apr-24 07:50 00:02 Jupiter 1.77593936777086 1.77593869873331 1.77594003680841 2.89824495691183 2.72872444295714 2485261.826554132 2.21724096075611 52.1164974780976 28.7684623177402 -80.343763708628 3217192.31077601 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 21:52:44 2021-Jul-08 21:52
2103-Mar-31 12:12 00:03 Jupiter 1.94156411157619 1.94156307736172 1.94156514579056 3.15088875076501 3.00924978952277 2489254.008630288 2.58897901158636 53.4854022575959 35.8024567025627 48.2133963925011 2347433.57018896 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 21:52:44 2021-Jul-08 21:52

Alternate Designations
 2166 T-2 = 1999 FS24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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