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85285 (1994 PE23)
Classification: Main-belt Asteroid          SPK-ID: 2085285
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1681983152758921 3.3031e-08  
a 2.25742616925994 9.48e-09 au
q 1.877730890730707 7.528e-08 au
i .1255014831971357 4.1888e-06 deg
node 61.24437054619099 0.0018748 deg
peri 253.0729515990969 0.0018749 deg
M 231.7702272006636 1.569e-05 deg
tp 2459441.770740862184
(2021-Aug-15.27074086)
5.5583e-05 TDB
period 1238.850098868836
3.39
7.8037e-06
2.137e-08
d
yr
n .2905920581745179 1.8305e-09 deg/d
Q 2.637121447789172 1.1074e-08 au
  Orbit Determination Parameters
   # obs. used (total)      504  
   data-arc span      9380 days (25.68 yr)  
   first obs. used      1994-08-12  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56956  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:34:54  

Additional Information
 Earth MOID = .863849 au 
 Jupiter MOID = 2.6293 au 
 T_jup = 3.604 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456813.5 (2014-Jun-05.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1689187776988929 3.3095e-08  
q 1.876137607361732 7.5489e-08 au
tp 2456963.297413219723
(2014-Nov-01.79741322)
4.7679e-05 TDB
node 60.62255878365658 0.0018571 deg
peri 253.6159062105746 0.0018571 deg
i .126529753652051 4.1945e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      504  
   data-arc span      9380 days (25.68 yr)  
   first obs. used      1994-08-12  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56956  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:34:54  

Additional Information
 Jupiter MOID = 2.6293 au 
 T_jup = 3.604 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.095260828674675E-15 -2.484771102687651E-15 1.674211438392395E-13 2.748690498592529E-15 4.484731039585669E-14 -1.073604979727582E-17
q -2.484771102687651E-15 5.698567224234274E-15 -2.444018825612574E-13 -1.032581360609783E-14 -6.194601561087439E-14 2.71154494193392E-17
tp 1.674211438392395E-13 -2.444018825612574E-13 2.273310210512304E-9 -2.993072101861179E-11 7.155587097545279E-10 -4.214177127960629E-14
node 2.748690498592529E-15 -1.032581360609783E-14 -2.993072101861179E-11 3.44870789544588E-6 -3.448707988775104E-6 -1.154324303288682E-9
peri 4.484731039585669E-14 -6.194601561087439E-14 7.155587097545279E-10 -3.448707988775104E-6 3.44892418603646E-6 1.154311425787725E-9
i -1.073604979727582E-17 2.71154494193392E-17 -4.214177127960629E-14 -1.154324303288682E-9 1.154311425787725E-9 1.75934183436009E-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 16.7   n/a MPO453283  

85285 (1994 PE23)          Discovered 1994-Aug-12 by Elst, E. W. at La Silla
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1994 PE23 = 2001 UV39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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