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172309 (2002 TU268)
Classification: Main-belt Asteroid          SPK-ID: 2172309
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2205782503828943 4.1596e-08  
a 2.767971198119406 1.8381e-08 au
q 2.157416954127983 1.2007e-07 au
i 8.198257605281034 6.9499e-06 deg
node 341.9404205888076 3.1295e-05 deg
peri 83.27401609172132 3.5583e-05 deg
M 348.5628617208084 1.7568e-05 deg
tp 2459449.938670920815
(2021-Aug-23.43867092)
8.2324e-05 TDB
period 1682.057264839952
4.61
1.6755e-05
4.587e-08
d
yr
n .2140236289959212 2.1318e-09 deg/d
Q 3.378525442110828 2.2435e-08 au
  Orbit Determination Parameters
   # obs. used (total)      437  
   data-arc span      8018 days (21.95 yr)  
   first obs. used      1998-12-21  
   last obs. used      2020-12-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59837  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:52:16  

Additional Information
 Earth MOID = 1.18874 au 
 Jupiter MOID = 2.04063 au 
 T_jup = 3.288 
[ show covariance matrix ]

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 15.6   n/a MPO436857  

172309 (2002 TU268)          Discovered 2002-Oct-09 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ 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
2133-Jun-11 12:21 00:01 Hygie 0.0150886640591658 0.0150570263795431 0.0151203022244051 5.57306907855694 5.57306861908686 2500284.014735168 1.16867200028512 1581.91582527092 108.828210481122 4.89528124630489 2266.69569578834 T 14 CATAB v2.0f-lin.ifort 2021-Apr-13 20:52:17 2021-Apr-13 20:52
2149-Oct-13 15:04 < 00:01 Psych 0.0304175739979105 0.0303773467244269 0.0304578056454154 4.38419183199616 4.38419174126864 2506252.127627987 0.967974231397586 2085.39149055151 94.3181554943395 16.0258032388682 13471.8436604182 T 14 CATAB v2.0f-lin.ifort 2021-Apr-13 20:52:17 2021-Apr-13 20:52
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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