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85231 (1993 FR52)
Classification: Main-belt Asteroid          SPK-ID: 2085231
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2130224403739964 6.2488e-08  
a 2.341248553890836 1.068e-08 au
q 1.84251007341892 1.4676e-07 au
i 4.102964299494861 7.1796e-06 deg
node 153.6902617862597 6.6842e-05 deg
peri 4.829214939374292 6.7887e-05 deg
M 225.3654250020929 1.0867e-05 deg
tp 2459489.854755432206
(2021-Oct-02.35475543)
4.0483e-05 TDB
period 1308.487897394356
3.58
8.9534e-06
2.451e-08
d
yr
n .275126732709475 1.8826e-09 deg/d
Q 2.839987034362752 1.2955e-08 au
  Orbit Determination Parameters
   # obs. used (total)      342  
   data-arc span      9654 days (26.43 yr)  
   first obs. used      1993-03-17  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55386  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:53:39  

Additional Information
 Earth MOID = .851722 au 
 Jupiter MOID = 2.14547 au 
 T_jup = 3.530 
[ 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 16.8   n/a MPO453282  

85231 (1993 FR52)          Discovered 1993-Mar-17 by UESAC at La Silla
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1993 FR52 = 1995 WM13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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