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39401 (7572 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2039401
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1250092602033302 3.8586e-08  
a 2.278115777981273 9.1448e-09 au
q 1.993330209918301 8.5779e-08 au
i 3.631397144120804 4.6128e-06 deg
node 137.2184340877031 7.0335e-05 deg
peri 150.2038547534193 7.3849e-05 deg
M 190.6921002077649 2.526e-05 deg
tp 2459591.159014537811
(2022-Jan-11.65901454)
8.9758e-05 TDB
period 1255.920400020013
3.44
7.5622e-06
2.07e-08
d
yr
n .2866423700055064 1.7259e-09 deg/d
Q 2.562901346044246 1.0288e-08 au
  Orbit Determination Parameters
   # obs. used (total)      896  
   data-arc span      21676 days (59.35 yr)  
   first obs. used      1960-09-27  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56323  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:12:08  

Additional Information
 Earth MOID = .977971 au 
 Jupiter MOID = 2.57399 au 
 T_jup = 3.594 
[ 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 15.6   n/a MPO351107  

39401 (7572 P-L)          Discovered 1960-Sep-27 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 7572 P-L = 2000 DD21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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