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85254 (1993 TG12)
Classification: Main-belt Asteroid          SPK-ID: 2085254
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2765887231823124 4.6887e-08  
a 2.426020266329413 1.3443e-08 au
q 1.755010418450947 1.0987e-07 au
i 10.00015177036859 4.3139e-06 deg
node 7.066507426155415 2.6745e-05 deg
peri 359.3080982687281 2.8318e-05 deg
M 80.12066752903468 1.3956e-05 deg
tp 2458893.327648865419
(2020-Feb-13.82764887)
5.16e-05 TDB
period 1380.193772953472
3.78
1.1472e-05
3.141e-08
d
yr
n .2608329403121687 2.1679e-09 deg/d
Q 3.097030114207878 1.7161e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1083  
   data-arc span      10024 days (27.44 yr)  
   first obs. used      1993-10-09  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51876  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:06:20  

Additional Information
 Earth MOID = .752162 au 
 Jupiter MOID = 2.36524 au 
 T_jup = 3.437 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457332.5 (2015-Nov-06.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2784150462423327 4.7018e-08  
q 1.749501429420684 1.1035e-07 au
tp 2457513.537571663606
(2016-May-05.03757166)
4.3515e-05 TDB
node 7.15819454870802 2.6691e-05 deg
peri 359.1931751577453 2.8239e-05 deg
i 10.01636170018036 4.3191e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1083  
   data-arc span      10024 days (27.44 yr)  
   first obs. used      1993-10-09  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51876  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:06:20  

Additional Information
 Jupiter MOID = 2.36524 au 
 T_jup = 3.437 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.210707823500295E-15 -5.172471471068253E-15 6.526007262802474E-13 8.870066026490243E-15 2.855350732029786E-14 9.526134377878366E-17
q -5.172471471068253E-15 1.217749060075557E-14 -1.33244408345605E-12 -2.207009352050993E-14 -2.637205038084194E-14 -8.417175916756291E-16
tp 6.526007262802474E-13 -1.33244408345605E-12 1.893585214696416E-9 -1.316606926454805E-11 4.144544662086165E-10 -5.702490183314003E-12
node 8.870066026490243E-15 -2.207009352050993E-14 -1.316606926454805E-11 7.124211051476487E-10 -7.043479754935082E-10 -2.069408352085101E-11
peri 2.855350732029786E-14 -2.637205038084194E-14 4.144544662086165E-10 -7.043479754935082E-10 7.974693374307501E-10 1.908553664342277E-11
i 9.526134377878366E-17 -8.417175916756291E-16 -5.702490183314003E-12 -2.069408352085101E-11 1.908553664342277E-11 1.865432642886462E-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 14.79   n/a MPCxxxxx  

85254 (1993 TG12)          Discovered 1993-Oct-14 by Holt, H. E. at Palomar
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1993 TG12 = 2002 BY3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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