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266903 (2009 WO156)
Classification: Main-belt Asteroid          SPK-ID: 2266903
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07613019342627737 6.4726e-08  
a 3.170888503110595 4.3718e-08 au
q 2.929488148035626 2.2679e-07 au
i 2.15102506099851 6.75e-06 deg
node 148.083751329594 0.00016116 deg
peri 253.291702732039 0.00016726 deg
M 335.4420327980197 4.8366e-05 deg
tp 2459141.188888366308
(2020-Oct-18.68888837)
0.00027835 TDB
period 2062.385676929589
5.65
4.2652e-05
1.168e-07
d
yr
n .1745551300259008 3.61e-09 deg/d
Q 3.412288858185564 4.7046e-08 au
  Orbit Determination Parameters
   # obs. used (total)      190  
   data-arc span      5792 days (15.86 yr)  
   first obs. used      2003-10-19  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58966  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:37:02  

Additional Information
 Earth MOID = 1.93856 au 
 Jupiter MOID = 1.92135 au 
 T_jup = 3.197 
[ 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 15.9   n/a MPO450147  

266903 (2009 WO156)          Discovered 2009-Nov-20 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ 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
1985-Aug-19 09:01 00:02 Jupiter 1.99765784998793 1.99765712277725 1.99765857719896 3.80526517240039 3.69215755711937 2446296.875410009 2.05867147820056 89.7648735380959 24.8663831226254 80.4405154895137 2407531.4809642 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 04:37:04 2019-Sep-24 04:37
1996-May-12 08:44 00:01 Jupiter 1.9706763443988 1.97067580270451 1.97067688609298 3.26948794576217 3.13527115577771 2450215.864189780 1.37021369571963 62.2265827578742 19.0226051622206 -87.5500898763273 2584838.33131136 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 04:37:04 2019-Sep-24 04:37
2007-Feb-07 23:18 < 00:01 Jupiter 1.97806817226132 1.97806765743838 1.97806868708427 3.00041118749385 2.85412918723412 2454139.470953080 0.659115173870116 65.8001232380312 16.1882812675251 -87.092478791526 2689804.97667899 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 04:37:04 2019-Sep-24 04:37
2103-Dec-02 20:55 00:06 Jupiter 1.9689140916827 1.96891354337273 1.96891463999268 3.53533733316126 3.41148273540756 2489500.371445152 5.5215273688109 155.846052096811 21.1498121792501 -87.1689767644456 2569332.69497172 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 04:37:04 2019-Sep-24 04:37
2114-Aug-26 08:14 00:06 Jupiter 1.95652735843775 1.95652682622506 1.95652789065032 3.09590516727037 2.95275905775046 2493419.843081387 6.16387749401827 63.7656479477094 25.030055585451 -87.7800353220227 2125405.82812199 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 04:37:04 2019-Sep-24 04:37
2125-May-25 08:55 00:07 Jupiter 1.987127648305 1.98712694044746 1.98712835616526 2.9707538247945 2.82362690014225 2497344.871570931 6.79638759226425 195.367598313317 19.8229810780514 82.9947107331564 2694174.94321576 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 04:37:04 2019-Sep-24 04:37

Alternate Designations
 2009 WO156 = 2008 SJ87 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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