Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06946945824372779 3.5392e-08  
a 3.184041789600633 1.9677e-08 au
q 2.962848131451688 1.1735e-07 au
i 4.622975756526675 4.9815e-06 deg
node 359.8340756094265 4.6195e-05 deg
peri 126.2678882792769 6.0987e-05 deg
M 29.96118475255708 3.7493e-05 deg
tp 2459223.787787616405
(2021-Jan-09.28778762)
0.00021635 TDB
period 2075.231569498853
5.68
1.9237e-05
5.267e-08
d
yr
n .1734746161783459 1.6081e-09 deg/d
Q 3.405235447749579 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-Aug-25 17:13:06  

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 1.93707898555797 1.93707785868624 1.93708011242981 3.72046068690956 3.60101261733457 2421306.582397638 3.09301622093957 65.8896236409305 32.3904699112294 49.349798026456 2355506.87431102 T 31 CATAB v2.0g-lin.ifort 2021-Aug-25 17:13:10 2021-Aug-25 17:13
1928-Feb-11 13:58 00:03 Jupiter 1.77696991735203 1.77696916966413 1.77697066504052 3.2247173636165 3.07334809856308 2425288.081765225 2.71645946078324 106.839246268293 23.7498044499331 79.9284917183123 2587534.86106692 T 31 CATAB v2.0g-lin.ifort 2021-Aug-25 17:13:10 2021-Aug-25 17:13
1939-Jan-15 08:21 00:02 Jupiter 1.71248373226313 1.71248326492584 1.71248419960042 2.9465706067155 2.77363400119249 2429278.847742680 2.30429284402191 107.125375625946 16.1313253456299 -87.4479566001257 2663768.01597484 T 31 CATAB v2.0g-lin.ifort 2021-Aug-25 17:13:10 2021-Aug-25 17:13
1949-Dec-23 13:56 00:02 Jupiter 1.76665223089645 1.76665162637975 1.76665283541305 2.8489495623545 2.67537144423886 2433274.080594423 1.93944186011561 52.6479740523443 24.5150850483025 -84.3430749752716 3053064.96450759 T 31 CATAB v2.0g-lin.ifort 2021-Aug-25 17:13:10 2021-Aug-25 17:13
1960-Nov-28 17:39 00:02 Jupiter 1.91236217236991 1.91236154040194 1.91236280433778 3.01865685295369 2.8681788963245 2437267.235227315 1.58509284316324 47.2061953346776 23.1102442110918 74.2889704784124 3143801.85111316 T 31 CATAB v2.0g-lin.ifort 2021-Aug-25 17:13:10 2021-Aug-25 17:13
2059-Jul-18 00:07 00:01 Jupiter 1.90240965018564 1.90240901586877 1.90241028450252 3.53331224015169 3.40497020166983 2473292.504916603 1.20717125118565 39.9954083084674 25.6703149035854 88.3209146297761 2640569.33132373 T 31 CATAB v2.0g-lin.ifort 2021-Aug-25 17:13:10 2021-Aug-25 17:13
2070-Jun-12 22:28 00:02 Jupiter 1.75039780056421 1.75039717477123 1.75039842635719 3.09281029928517 2.93217833985916 2477275.435983377 1.52388193295901 68.9685187312241 22.246829934196 85.138734602738 2420010.27921608 T 31 CATAB v2.0g-lin.ifort 2021-Aug-25 17:13:10 2021-Aug-25 17:13
2081-May-17 08:07 00:02 Jupiter 1.69992974511721 1.69992929945503 1.69993019077939 2.89888197267046 2.72157646157812 2481266.838266150 1.84453917499807 90.805811221133 15.5796977930754 -88.2975250590621 2652532.91700011 T 31 CATAB v2.0g-lin.ifort 2021-Aug-25 17:13:10 2021-Aug-25 17:13
2092-Apr-24 07:50 00:02 Jupiter 1.77593936693783 1.77593869790028 1.77594003597538 2.89824495038135 2.72872443593897 2485261.826562729 2.21724096125028 52.1165051143108 28.7684595905381 -80.3437515453313 3217192.38498716 T 31 CATAB v2.0g-lin.ifort 2021-Aug-25 17:13:10 2021-Aug-25 17:13
2103-Mar-31 12:12 00:03 Jupiter 1.94156411032939 1.94156307611491 1.94156514454375 3.1508887709604 3.00924981057563 2489254.008625680 2.58897900378047 53.4854099125505 35.8024489991834 48.2133989532296 2347433.68046883 T 31 CATAB v2.0g-lin.ifort 2021-Aug-25 17:13:10 2021-Aug-25 17:13

Alternate Designations
 2166 T-2 = 1999 FS24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-17 11:23 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin