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100261 (1994 TR6)
Classification: Main-belt Asteroid          SPK-ID: 2100261
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2338907954936786 4.3005e-08  
a 2.604490913467174 1.004e-08 au
q 1.995324461860279 1.1332e-07 au
i 3.572806408925203 4.9964e-06 deg
node 172.8583542549707 5.185e-05 deg
peri 154.6775547031336 5.2797e-05 deg
M 64.70003567659114 7.5227e-06 deg
tp 2458724.579024895151
(2019-Aug-29.07902490)
3.2253e-05 TDB
period 1535.262693428226
4.20
8.8778e-06
2.431e-08
d
yr
n .2344875580843586 1.3559e-09 deg/d
Q 3.213657365074069 1.2389e-08 au
  Orbit Determination Parameters
   # obs. used (total)      653  
   data-arc span      9190 days (25.16 yr)  
   first obs. used      1994-09-28  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56327  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:35:11  

Additional Information
 Earth MOID = .984706 au 
 Jupiter MOID = 2.15182 au 
 T_jup = 3.371 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457292.5 (2015-Sep-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2353452535195575 4.3014e-08  
q 1.991080054713038 1.1356e-07 au
tp 2457190.799816944504
(2015-Jun-17.29981694)
3.4373e-05 TDB
node 172.9090865557718 5.1796e-05 deg
peri 154.8637780917004 5.2731e-05 deg
i 3.574849452604477 5.001e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      653  
   data-arc span      9190 days (25.16 yr)  
   first obs. used      1994-09-28  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56327  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:35:11  

Additional Information
 Jupiter MOID = 2.15182 au 
 T_jup = 3.371 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.850205241800468E-15 -4.87330194950102E-15 4.772905292059159E-13 -2.438933568214113E-15 1.184072716065485E-13 -2.82382920700141E-15
q -4.87330194950102E-15 1.289483030917464E-14 -1.351683370174499E-12 5.470317578886208E-15 -3.359123551569203E-13 7.525944303535566E-15
tp 4.772905292059159E-13 -1.351683370174499E-12 1.181494422497479E-9 1.089666783327186E-12 3.458363222624229E-10 -1.042506615563095E-12
node -2.438933568214113E-15 5.470317578886208E-15 1.089666783327186E-12 2.682846741166541E-9 -2.67638159033109E-9 -6.323283375426787E-12
peri 1.184072716065485E-13 -3.359123551569203E-13 3.458363222624229E-10 -2.67638159033109E-9 2.780509375815316E-9 6.061377477920332E-12
i -2.82382920700141E-15 7.525944303535566E-15 -1.042506615563095E-12 -6.323283375426787E-12 6.061377477920332E-12 2.500962693177382E-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 15.8   n/a MPO436467  

100261 (1994 TR6)          Discovered 1994-Oct-04 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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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
1911-Nov-15 10:29 00:01 Inter 0.0453883194730991 0.0453700698007674 0.0454065691619577 5.45063534994508 5.45063529077155 2419355.936923354 1.22584702352242 910.642760304263 35.7553041202869 2.72335679041402 11690.8669730718 T 20 CATAB v2.0f-lin.ifort 2019-Dec-14 08:35:16 2019-Dec-14 08:35

Alternate Designations
 1994 TR6 = 1998 OC9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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