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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 | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2764800497733658 4.8627e-08  
a 2.425549294248675 1.5053e-08 au
q 1.75493330464705 1.1536e-07 au
i 10.00028609329736 5.1909e-06 deg
node 7.07223779040659 2.7845e-05 deg
peri 359.2780122549042 2.9295e-05 deg
M 27.97847700589394 1.4048e-05 deg
tp 2458893.265346188301
(2020-Feb-13.76534619)
5.31e-05 TDB
period 1379.79187945359
3.78
1.2845e-05
3.517e-08
d
yr
n .260908913409871 2.4288e-09 deg/d
Q 3.096165283850301 1.9215e-08 au
  Orbit Determination Parameters
   # obs. used (total)      882  
   data-arc span      9883 days (27.06 yr)  
   first obs. used      1993-10-09  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54527  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:01:33  

Additional Information
 Earth MOID = .753619 au 
 Jupiter MOID = 2.36505 au 
 T_jup = 3.438 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456846.5 (2014-Jul-08.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2784566434208671 4.8757e-08  
q 1.748986406637331 1.158e-07 au
tp 2457513.683661911598
(2016-May-05.18366191)
4.4028e-05 TDB
node 7.163345160989376 2.7786e-05 deg
peri 359.2461965798691 2.9212e-05 deg
i 10.01715861303998 5.1979e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      882  
   data-arc span      9883 days (27.06 yr)  
   first obs. used      1993-10-09  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54527  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:01:33  

Additional Information
 Jupiter MOID = 2.36505 au 
 T_jup = 3.438 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.377212945195857E-15 -5.623191943229023E-15 6.123098856060335E-13 8.866905843395803E-15 4.049102884278775E-14 1.633519255393854E-17
q -5.623191943229023E-15 1.340965666535394E-14 -1.203382988414121E-12 -2.06545017358884E-14 -6.065942561567597E-14 -3.025334084374878E-18
tp 6.123098856060335E-13 -1.203382988414121E-12 1.938478967538196E-9 -6.651984711016415E-12 4.046872247721515E-10 -3.012969922036125E-12
node 8.866905843395803E-15 -2.06545017358884E-14 -6.651984711016415E-12 7.720710057228764E-10 -7.616432170819435E-10 7.218218959949505E-13
peri 4.049102884278775E-14 -6.065942561567597E-14 4.046872247721515E-10 -7.616432170819435E-10 8.533470944163564E-10 -1.425904312703119E-12
i 1.633519255393854E-17 -3.025334084374878E-18 -3.012969922036125E-12 7.218218959949505E-13 -1.425904312703119E-12 2.701826105841337E-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 14.8   n/a MPO439613  

85254 (1993 TG12)          Discovered 1993-Oct-14 by Holt, H. E. at Palomar
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
1901-Aug-10 05:28 00:01 Iris 0.037088722315937 0.037084805700071 0.037092644381373 4.78369076564697 4.78369073324525 2415606.728028967 1.04579744674559 752.957696812735 43.8054983350035 -75.3293456421478 122496.204728555 T 20 CATAB v2.0f-lin.ifort 2020-Nov-12 21:01:36 2020-Nov-12 21:01

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