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JPL Small-Body Database Browser
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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 ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02658294525173776 3.5532e-08  
a 2.550000217516529 1.2626e-08 au
q 2.482213701342368 8.9031e-08 au
i 1.972171468792326 4.7201e-06 deg
node 325.0494372944524 0.0001143 deg
peri 315.9571296987006 0.0001935 deg
M 248.6724624843727 0.00016178 deg
tp 2459460.448127586156
(2021-Sep-02.94812759)
0.00066984 TDB
period 1487.334846580732
4.07
1.1047e-05
3.025e-08
d
yr
n .242043680229514 1.7977e-09 deg/d
Q 2.617786733690691 1.2962e-08 au
  Orbit Determination Parameters
   # obs. used (total)      925  
   data-arc span      16938 days (46.37 yr)  
   first obs. used      1973-09-20  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58724  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:23:04  

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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