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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2765887202658965 4.7509e-08  
a 2.4260202701772 1.3862e-08 au
q 1.755010428309764 1.1155e-07 au
i 10.00015101578796 4.5083e-06 deg
node 7.066505029159241 2.7175e-05 deg
peri 359.3081003460019 2.8711e-05 deg
M 80.1206667738813 1.4105e-05 deg
tp 2458893.327651029794
(2020-Feb-13.82765103)
5.2107e-05 TDB
period 1380.193776237055
3.78
1.1829e-05
3.239e-08
d
yr
n .2608329396916279 2.2355e-09 deg/d
Q 3.097030112044636 1.7696e-08 au
  Orbit Determination Parameters
   # obs. used (total)      977  
   data-arc span      9969 days (27.29 yr)  
   first obs. used      1993-10-09  
   last obs. used      2021-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53079  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:40:09  

Additional Information
 Earth MOID = .752162 au 
 Jupiter MOID = 2.36524 au 
 T_jup = 3.437 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457195.5 (2015-Jun-22.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2784095612021836 4.7643e-08  
q 1.749405668379021 1.1203e-07 au
tp 2457513.563088904777
(2016-May-05.06308890)
4.3759e-05 TDB
node 7.160017986070121 2.7122e-05 deg
peri 359.2040526761044 2.8633e-05 deg
i 10.01638277780523 4.5138e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      977  
   data-arc span      9969 days (27.29 yr)  
   first obs. used      1993-10-09  
   last obs. used      2021-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53079  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:40:09  

Additional Information
 Jupiter MOID = 2.36524 au 
 T_jup = 3.437 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.269815923914412E-15 -5.319953701400874E-15 6.624767129768662E-13 9.10824663685928E-15 3.232218531874125E-14 1.632221593902937E-16
q -5.319953701400874E-15 1.255118899344478E-14 -1.346552220581283E-12 -2.257938198202211E-14 -3.595268373075811E-14 -1.040311892697867E-15
tp 6.624767129768662E-13 -1.346552220581283E-12 1.914822853503133E-9 -1.275424336940143E-11 4.146079963316045E-10 -5.705474159964077E-12
node 9.10824663685928E-15 -2.257938198202211E-14 -1.275424336940143E-11 7.355788601159717E-10 -7.269539416974036E-10 -1.471927196278727E-11
peri 3.232218531874125E-14 -3.595268373075811E-14 4.146079963316045E-10 -7.269539416974036E-10 8.198302293506519E-10 1.324220179888539E-11
i 1.632221593902937E-16 -1.040311892697867E-15 -5.705474159964077E-12 -1.471927196278727E-11 1.324220179888539E-11 2.037413830774058E-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 22 CATAB v2.0f-lin.ifort 2021-Feb-24 07:40:10 2021-Feb-24 07:40

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