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JPL Small-Body Database Browser
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52122 (4128 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2052122
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0515268889695252 3.4728e-08  
a 2.97793890086998 1.6297e-08 au
q 2.824494973766823 1.0418e-07 au
i 10.2878905777721 4.194e-06 deg
node 190.1665584924961 2.1108e-05 deg
peri 318.5631795773965 4.5493e-05 deg
M 83.34601220097879 3.947e-05 deg
tp 2458565.935319537700
(2019-Mar-23.43531954)
0.00020592 TDB
period 1877.033835634319
5.14
1.5409e-05
4.219e-08
d
yr
n .1917919608936313 1.5744e-09 deg/d
Q 3.131382827973137 1.7137e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1363  
   data-arc span      21673 days (59.34 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55114  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:22:03  

Additional Information
 Earth MOID = 1.84205 au 
 Jupiter MOID = 1.86405 au 
 T_jup = 3.234 
[ 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 13.9   n/a MPO474406  
diameter diameter 5.817 km 0.267 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.173   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52122 (4128 P-L)          Discovered 1960-Sep-24 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
 4128 P-L = 1994 JM8 = 1999 FV25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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