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52428 (1994 PE4)
Classification: Main-belt Asteroid          SPK-ID: 2052428
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1763912666734901 3.7543e-08  
a 2.375790539299749 6.4677e-09 au
q 1.956721836721772 8.85e-08 au
i 1.973551102147575 4.2669e-06 deg
node 223.3265520969495 8.9436e-05 deg
peri 162.8598446322473 9.0023e-05 deg
M 82.09512405738823 9.2724e-06 deg
tp 2459091.481969538127
(2020-Aug-29.98196954)
3.4383e-05 TDB
period 1337.551921957201
3.66
5.4619e-06
1.495e-08
d
yr
n .2691484301209201 1.0991e-09 deg/d
Q 2.794859241877726 7.6085e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1012  
   data-arc span      10632 days (29.11 yr)  
   first obs. used      1992-01-02  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55076  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:37:03  

Additional Information
 Earth MOID = .960347 au 
 Jupiter MOID = 2.65661 au 
 T_jup = 3.520 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457560.5 (2016-Jun-21.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1779714253912048 3.7704e-08  
q 1.952363553341421 8.9023e-08 au
tp 2457753.354255294347
(2016-Dec-30.85425529)
3.3989e-05 TDB
node 223.3774477650999 8.935e-05 deg
peri 162.6284767425628 8.992e-05 deg
i 1.974323924906885 4.2712e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1012  
   data-arc span      10632 days (29.11 yr)  
   first obs. used      1992-01-02  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55076  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:37:03  

Additional Information
 Jupiter MOID = 2.65661 au 
 T_jup = 3.520 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.421600501084175E-15 -3.350719073713935E-15 2.834905360539245E-13 -1.15896274648252E-15 5.843355508381794E-14 -8.073134577151385E-16
q -3.350719073713935E-15 7.925109102791314E-15 -6.952142161085205E-13 2.40865873992463E-15 -1.466286796751989E-13 1.965000927374455E-15
tp 2.834905360539245E-13 -6.952142161085205E-13 1.15522882876546E-9 -1.732449734142537E-13 3.495522469061347E-10 -3.128410960246043E-13
node -1.15896274648252E-15 2.40865873992463E-15 -1.732449734142537E-13 7.983357737090493E-9 -7.97797479527247E-9 1.855401135653795E-11
peri 5.843355508381794E-14 -1.466286796751989E-13 3.495522469061347E-10 -7.97797479527247E-9 8.085674487325238E-9 -1.861503078458953E-11
i -8.073134577151385E-16 1.965000927374455E-15 -3.128410960246043E-13 1.855401135653795E-11 -1.861503078458953E-11 1.82428586064931E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.96   n/a MPCxxxxx  
diameter diameter 4.008 km 0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52428 (1994 PE4)          Discovered 1994-Aug-10 by Elst, E. W. at La Silla
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 PE4 = 1998 VG45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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