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JPL Small-Body Database Browser
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52187 (4125 T-2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2052187
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06284584450432731 3.9263e-08  
a 3.226601109411616 2.2805e-08 au
q 3.023822637812044 1.3381e-07 au
i 12.50308521450914 4.312e-06 deg
node 173.0359884620532 1.742e-05 deg
peri 197.7321342922732 3.5519e-05 deg
M 307.7034444118857 3.0958e-05 deg
tp 2458908.029604798858
(2020-Feb-28.52960480)
0.00018231 TDB
period 2116.978001372436
5.80
2.2443e-05
6.145e-08
d
yr
n .1700537274202245 1.8029e-09 deg/d
Q 3.429379581011189 2.4238e-08 au
  Orbit Determination Parameters
   # obs. used (total)      853  
   data-arc span      16869 days (46.18 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57137  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:58:29  

Additional Information
 Earth MOID = 2.0235 au 
 Jupiter MOID = 1.9348 au 
 T_jup = 3.147 
[ 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 MPO493235  
diameter diameter 9.651 km 0.486 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52187 (4125 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
 4125 T-2 = 1996 RJ25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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