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JPL Small-Body Database Browser
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266762 (2009 SF122)
Classification: Main-belt Asteroid          SPK-ID: 2266762
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1317735457880684 6.7283e-08  
a 2.333847695255354 2.5083e-08 au
q 2.026308309122245 1.6433e-07 au
i 2.76747882994272 8.1937e-06 deg
node 229.304336228948 0.00019624 deg
peri 12.21854730753927 0.00019998 deg
M 116.5244563752439 4.258e-05 deg
tp 2458578.976513168889
(2019-Apr-05.47651317)
0.0001513 TDB
period 1302.288463552444
3.57
2.0994e-05
5.748e-08
d
yr
n .2764364501993476 4.4565e-09 deg/d
Q 2.641387081388463 2.8388e-08 au
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      7078 days (19.38 yr)  
   first obs. used      1998-08-28  
   last obs. used      2018-01-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69189  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:29:08  

Additional Information
 Earth MOID = 1.01372 au 
 Jupiter MOID = 2.36556 au 
 T_jup = 3.556 
[ 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 17.4   n/a MPO338792  

266762 (2009 SF122)          Discovered 2009-Sep-18 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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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
2051-Nov-20 23:41 < 00:01 Hebe 0.0244049109690685 0.0243871259217436 0.0244226961006594 8.35683897057175 8.35683894009012 2470496.486721597 0.841928790605334 889.642255044201 55.2908187283794 4.63176532344946 6718.04620119332 T 7 CATAB v2.0e-lin.ifort 2019-Jul-14 12:29:10 2019-Jul-14 12:29
2064-Aug-12 16:47 00:02 Hebe 0.0466865483193597 0.0466765137923031 0.0466965902219554 7.62790251606968 7.62790249861304 2475145.198962326 1.50823439910654 1057.78000762622 60.0645929341953 61.9353986708963 102633.778183267 T 7 CATAB v2.0e-lin.ifort 2019-Jul-14 12:29:10 2019-Jul-14 12:29
2116-Feb-09 06:41 00:02 Hebe 0.0157385579342599 0.0157135689586085 0.0157636387222922 8.24874566953466 8.24874562164909 2493951.778611383 2.39447310695933 2270.958689983 55.4735322656697 -56.6834775361126 35464.9923462947 T 7 CATAB v2.0e-lin.ifort 2019-Jul-14 12:29:10 2019-Jul-14 12:29
2128-Oct-29 23:33 00:03 Hebe 0.0300926828356159 0.0300843010961002 0.0301011301681565 7.82759052389098 7.82759049749921 2498598.481234844 2.93924430328391 2277.50238532297 60.5354406043908 -79.4932671095206 73106.88659682 T 7 CATAB v2.0e-lin.ifort 2019-Jul-14 12:29:10 2019-Jul-14 12:29
2180-Apr-27 08:05 00:04 Hebe 0.0276640773247872 0.0276426751873599 0.0276856550674134 8.21625691155912 8.21625688420849 2517405.836550977 4.27191997076018 3641.0157518217 55.5848350376526 -72.9072111175637 71153.4499014374 T 7 CATAB v2.0e-lin.ifort 2019-Jul-14 12:29:10 2019-Jul-14 12:29
2193-Jan-16 17:57 00:04 Hebe 0.026304846890499 0.0262450362095126 0.0263647088793116 7.93233395672797 7.93233392693452 2522053.248227614 4.07265003293417 3500.9783201422 60.910065666939 -31.5594110509611 33820.2307744174 T 7 CATAB v2.0e-lin.ifort 2019-Jul-14 12:29:10 2019-Jul-14 12:29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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