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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06318586206984524 3.1723e-08  
a 3.22759332046994 1.8876e-08 au
q 3.023655054105173 1.0238e-07 au
i 12.50218539053067 3.4453e-06 deg
node 173.0285618942632 1.6866e-05 deg
peri 198.1334746156067 3.4197e-05 deg
M 49.36633360037093 2.8944e-05 deg
tp 2458910.067634665231
(2020-Mar-01.56763467)
0.00017058 TDB
period 2117.954563263969
5.80
1.858e-05
5.087e-08
d
yr
n .169975317810976 1.4911e-09 deg/d
Q 3.431531586834708 2.0069e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1134  
   data-arc span      17308 days (47.39 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51646  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:43:29  

Additional Information
 Earth MOID = 2.02281 au 
 Jupiter MOID = 1.93234 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 14.02   n/a MPCxxxxx  
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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