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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 ]

[ 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 .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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2019-Jul-19 03:24 < 00:01 Psych 0.0332389140883509 0.0332370947149113 0.0332407334667677 4.68622419568106 4.6862241180057 2458683.641326429 0.602630827427117 107.994258457455 85.0917018162078 61.9287083195519 55891.7954052402 T 13 CATAB v2.0f-lin.ifort 2019-Sep-24 02:53:41 2019-Sep-24 02:53
2101-Sep-17 23:07 < 00:01 Iris 0.0298194025159143 0.0298094648490697 0.0298293428845728 7.53328548596456 7.53328546037342 2488694.463177712 0.839867244621269 671.474462064342 77.7148731493755 42.7954880544739 39293.6352607402 T 13 CATAB v2.0f-lin.ifort 2019-Sep-24 02:53:41 2019-Sep-24 02:53
2132-Jul-25 00:05 00:01 Iris 0.0471346480961543 0.0471156655402784 0.0471536346870049 7.59661519029228 7.59661517423719 2499962.503708296 1.42963678899057 1170.68241090316 59.147018879806 -36.1015192443803 70400.1014105024 T 13 CATAB v2.0f-lin.ifort 2019-Sep-24 02:53:41 2019-Sep-24 02:53

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