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12345 (1993 FT8)
Classification: Main-belt Asteroid          SPK-ID: 2012345
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1612410809182389 3.3812e-08  
a 2.449177677331556 7.3064e-09 au
q 2.054269621277795 8.3527e-08 au
i 3.349996134648007 2.8647e-06 deg
node 106.4061001965214 7.11e-05 deg
peri 313.8499407762846 7.189e-05 deg
M 243.9180880373851 1.1317e-05 deg
tp 2459847.930520271716
(2022-Sep-25.43052027)
4.4828e-05 TDB
period 1400.002675267417
3.83
6.2647e-06
1.715e-08
d
yr
n .2571423657681481 1.1507e-09 deg/d
Q 2.844085733385318 8.4845e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1931  
   data-arc span      10372 days (28.40 yr)  
   first obs. used      1993-03-17  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50265  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 20:48:09  

Additional Information
 Earth MOID = 1.06834 au 
 Jupiter MOID = 2.47557 au 
 T_jup = 3.476 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457092.5 (2015-Mar-11.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1602975086341769 3.3551e-08  
q 2.056203118900632 8.2567e-08 au
tp 2457050.188228957388
(2015-Jan-27.68822896)
4.2015e-05 TDB
node 106.4549029016513 7.1043e-05 deg
peri 314.1897000843326 7.1853e-05 deg
i 3.35081929444111 2.866e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1931  
   data-arc span      10372 days (28.40 yr)  
   first obs. used      1993-03-17  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50265  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 20:48:09  

Additional Information
 Jupiter MOID = 2.47557 au 
 T_jup = 3.476 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.125702612467883E-15 -2.762416674807559E-15 -6.00940635523943E-13 -1.263753730796843E-14 -1.602225648103471E-13 -3.51827167404249E-16
q -2.762416674807559E-15 6.817327488730953E-15 1.496065642197328E-12 3.179997576393924E-14 3.977265930852551E-13 8.824597771943279E-16
tp -6.00940635523943E-13 1.496065642197328E-12 1.765276768115561E-9 1.24518430655423E-11 4.747307970015627E-10 8.371008027041853E-14
node -1.263753730796843E-14 3.179997576393924E-14 1.24518430655423E-11 5.047149789174011E-9 -5.034810539965183E-9 -2.31224112508278E-11
peri -1.602225648103471E-13 3.977265930852551E-13 4.747307970015627E-10 -5.034810539965183E-9 5.16284441691792E-9 2.31039954725711E-11
i -3.51827167404249E-16 8.824597771943279E-16 8.371008027041853E-14 -2.31224112508278E-11 2.31039954725711E-11 8.214228378478208E-12

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.51   n/a MPO636252  
diameter diameter 3.012 km 0.432 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.407   0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12345 (1993 FT8)          Discovered 1993-Mar-17 by UESAC at La Silla
Reference: 19991123/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 FT8 = 1995 UW49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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