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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06948239661624504 3.6247e-08  
a 3.182538590033484 2.1693e-08 au
q 2.961408181474273 1.1923e-07 au
i 4.623477398316926 5.9525e-06 deg
node 359.8563374829151 4.9424e-05 deg
peri 126.8495916663627 6.6429e-05 deg
M 251.2876352454757 4.3379e-05 deg
tp 2459226.732188232642
(2021-Jan-12.23218823)
0.00025052 TDB
period 2073.762154588479
5.68
2.1203e-05
5.805e-08
d
yr
n .1735975358617917 1.7749e-09 deg/d
Q 3.403668998592696 2.32e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1163  
   data-arc span      16877 days (46.21 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54044  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:58:29  

Additional Information
 Earth MOID = 1.9798 au 
 Jupiter MOID = 1.63019 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 14.0   n/a MPO365859  
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

[ show close-approach data ]
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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