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308894 (2006 SA168)
Classification: Main-belt Asteroid          SPK-ID: 2308894
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04277491830058375 7.2448e-08  
a 2.755728754478906 2.6596e-08 au
q 2.637852682147501 2.0471e-07 au
i 6.183436023824428 8.862e-06 deg
node 347.3530598776009 6.1964e-05 deg
peri 60.16352967714327 0.00013615 deg
M 315.8736867610586 0.00011403 deg
tp 2459205.308638950517
(2020-Dec-21.80863895)
0.00052831 TDB
period 1670.910271223804
4.57
2.4189e-05
6.623e-08
d
yr
n .2154514256090662 3.119e-09 deg/d
Q 2.87360482681031 2.7733e-08 au
  Orbit Determination Parameters
   # obs. used (total)      116  
   data-arc span      8425 days (23.07 yr)  
   first obs. used      1997-09-29  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64088  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 18:59:36  

Additional Information
 Earth MOID = 1.65246 au 
 Jupiter MOID = 2.28368 au 
 T_jup = 3.334 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457605.5 (2016-Aug-05.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04378119776033068 7.3706e-08  
q 2.635699217715443 2.0789e-07 au
tp 2457518.275483483551
(2016-May-09.77548348)
0.00051641 TDB
node 347.5448953669678 6.1866e-05 deg
peri 56.80672239612563 0.00013233 deg
i 6.187838041172745 8.873e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      116  
   data-arc span      8425 days (23.07 yr)  
   first obs. used      1997-09-29  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64088  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 18:59:36  

Additional Information
 Jupiter MOID = 2.28368 au 
 T_jup = 3.334 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.432641709835131E-15 -1.521162459880522E-14 -7.90372696557887E-12 4.787122316439023E-14 -1.731045560218118E-12 -7.122492546698776E-15
q -1.521162459880522E-14 4.321718617163062E-14 1.75214533308544E-11 -1.274958954122352E-13 3.804325535858842E-12 2.16174803497027E-14
tp -7.90372696557887E-12 1.75214533308544E-11 2.666817924626503E-7 -2.947800525389855E-10 6.045756206997773E-8 1.313946968418685E-11
node 4.787122316439023E-14 -1.274958954122352E-13 -2.947800525389855E-10 3.827453862315951E-9 -3.869879357799192E-9 2.028803776121792E-10
peri -1.731045560218118E-12 3.804325535858842E-12 6.045756206997773E-8 -3.869879357799192E-9 1.751246665813095E-8 -1.98846257020723E-10
i -7.122492546698776E-15 2.16174803497027E-14 1.313946968418685E-11 2.028803776121792E-10 -1.98846257020723E-10 7.872998336956075E-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 17.0   n/a MPO476380  

308894 (2006 SA168)          Discovered 2006-Sep-25 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

[ 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
2053-Dec-01 04:03 00:01 David 0.0363200993385364 0.0362996709899345 0.0363405363616374 6.69008707255559 6.69008701038224 2471237.668554208 1.07745757677038 1350.71194041699 72.1355792434446 41.1236009070855 49613.2852273992 T 12 CATAB v2.0f-lin.ifort 2020-Nov-11 18:59:37 2020-Nov-11 18:59

Alternate Designations
 2006 SA168 = 2004 EJ99 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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