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52171 (2127 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2052171
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02658294103267702 3.5237e-08  
a 2.550000215519737 1.246e-08 au
q 2.482213710157262 8.8504e-08 au
i 1.972171673076149 4.7165e-06 deg
node 325.0494633215276 0.0001115 deg
peri 315.9571058180597 0.00019186 deg
M 248.6724613463539 0.00016176 deg
tp 2459460.448131747617
(2021-Sep-02.94813175)
0.00066975 TDB
period 1487.334844833733
4.07
1.0902e-05
2.985e-08
d
yr
n .2420436805138146 1.7741e-09 deg/d
Q 2.617786720882212 1.2792e-08 au
  Orbit Determination Parameters
   # obs. used (total)      976  
   data-arc span      17015 days (46.58 yr)  
   first obs. used      1973-09-20  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58446  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 10:19:28  

Additional Information
 Earth MOID = 1.46623 au 
 Jupiter MOID = 2.40154 au 
 T_jup = 3.439 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO266194  

52171 (2127 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

Alternate Designations
 2127 T-2 = 1977 RE12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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