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12075 Legg (1998 FX69)
Classification: Main-belt Asteroid          SPK-ID: 2012075
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1654846582534599 4.0141e-08  
a 2.459195328778667 9.1795e-09 au
q 2.052236230217224 9.7205e-08 au
i 3.958403820934725 4.4294e-06 deg
node 133.4375875733409 4.6767e-05 deg
peri 146.0459617826188 4.8025e-05 deg
M 201.9688052752435 1.064e-05 deg
tp 2459618.841346485285
(2022-Feb-08.34134649)
4.2805e-05 TDB
period 1408.600910234278
3.86
7.8869e-06
2.159e-08
d
yr
n .2555727441210618 1.431e-09 deg/d
Q 2.866154427340109 1.0699e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1636  
   data-arc span      10683 days (29.25 yr)  
   first obs. used      1991-08-06  
   last obs. used      2020-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52917  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:48:00  

Additional Information
 Earth MOID = 1.03723 au 
 Jupiter MOID = 2.26856 au 
 T_jup = 3.469 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456474.5 (2013-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1660935012136712 4.0084e-08  
q 2.049834099974033 9.7111e-08 au
tp 2456803.107775165477
(2014-May-25.60777517)
3.9556e-05 TDB
node 133.4860445613392 4.6754e-05 deg
peri 146.2467591862401 4.8005e-05 deg
i 3.959101806417425 4.4309e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1636  
   data-arc span      10683 days (29.25 yr)  
   first obs. used      1991-08-06  
   last obs. used      2020-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52917  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:48:00  

Additional Information
 Jupiter MOID = 2.26856 au 
 T_jup = 3.469 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.606706961217971E-15 -3.8811664489571E-15 4.351085311034765E-13 -1.047868342474092E-14 9.71822394019583E-14 -2.713196591931707E-16
q -3.8811664489571E-15 9.430517959761422E-15 -1.070643970197779E-12 2.51191648039857E-14 -2.429787791785867E-13 8.299194978527185E-16
tp 4.351085311034765E-13 -1.070643970197779E-12 1.564699837252676E-9 -7.71403894764022E-12 4.379145973378631E-10 -5.076510766154348E-13
node -1.047868342474092E-14 2.51191648039857E-14 -7.71403894764022E-12 2.185922361784648E-9 -2.18206853810237E-9 -2.693795992715719E-11
peri 9.71822394019583E-14 -2.429787791785867E-13 4.379145973378631E-10 -2.18206853810237E-9 2.304491366092678E-9 2.67511077535291E-11
i -2.713196591931707E-16 8.299194978527185E-16 -5.076510766154348E-13 -2.693795992715719E-11 2.67511077535291E-11 1.963285641870688E-11

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 14.4   n/a MPO313516  
diameter diameter 6.874 km 0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12075 Legg           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Tiffany Amelia Legg (b. 1987) is a finalist in the 2002 Intel International Science and Engineering Fair for her earth and space sciences project. She attends the Duncan Senior High School, Duncan, Oklahoma, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020724/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1998 FX69 = 1991 PE16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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