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332809 (2009 WR166)
Classification: Main-belt Asteroid          SPK-ID: 2332809
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03111376037632205 7.1111e-08  
a 3.080580399077177 4.0173e-08 au
q 2.984731958720296 2.3409e-07 au
i 8.545590802895664 7.2669e-06 deg
node 291.2479288542745 5.175e-05 deg
peri 283.6231426161166 0.00014525 deg
M 280.9946111694272 0.00013795 deg
tp 2459633.912529953371
(2022-Feb-23.41252995)
0.00075944 TDB
period 1974.909725687408
5.41
3.8631e-05
1.058e-07
d
yr
n .1822868130717694 3.5657e-09 deg/d
Q 3.176428839434059 4.1423e-08 au
  Orbit Determination Parameters
   # obs. used (total)      229  
   data-arc span      6768 days (18.53 yr)  
   first obs. used      2002-09-03  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49453  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 07:48:33  

Additional Information
 Earth MOID = 1.98935 au 
 Jupiter MOID = 1.90739 au 
 T_jup = 3.210 
[ 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 15.85   n/a MPCxxxxx  

332809 (2009 WR166)          Discovered 2009-Nov-21 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120703/Numbers.arcLast Updated: 2012-07-09

[ 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
1916-Jul-02 23:01 00:06 Jupiter 1.92421210443065 1.92421127028669 1.92421293857538 2.89357440076639 2.73722287852017 2421047.459218246 6.41716090241558 287.31023894981 30.274038633299 -89.6869337988438 1795877.59625005 T 16 CATAB v2.0f-lin.ifort 2021-Apr-14 07:48:34 2021-Apr-14 07:48
1976-Feb-26 05:28 00:03 Jupiter 1.92428212938321 1.92428130559227 1.92428295317437 2.94232317808531 2.78871188822629 2442834.727811252 2.63145853153169 115.687788732275 29.2837911554828 -79.7304352844339 2001501.93983031 T 16 CATAB v2.0f-lin.ifort 2021-Apr-14 07:48:34 2021-Apr-14 07:48
2035-Oct-19 21:38 00:01 Jupiter 1.92421177729825 1.92421098408834 1.92421257050826 3.12158582801224 2.97723264221959 2464620.401318361 1.17587760050993 84.3450893072945 26.0960667023224 -71.713085622232 2132791.05578339 T 16 CATAB v2.0f-lin.ifort 2021-Apr-14 07:48:34 2021-Apr-14 07:48
2045-Jul-07 07:08 00:02 Jupiter 1.9835941549586 1.98359335464686 1.98359495527033 3.93777801784719 3.82780193856644 2468168.797036901 1.74420153707069 158.345481688809 33.5600838034062 86.4909230550567 1839340.91529227 T 16 CATAB v2.0f-lin.ifort 2021-Apr-14 07:48:34 2021-Apr-14 07:48
2095-Jun-10 00:05 00:05 Jupiter 1.92615242528377 1.92615165931469 1.92615319125274 3.37142703429056 3.23836739440385 2486403.503740779 4.72838938781917 234.339254182689 31.1755706326911 -86.3561758632978 2143091.15820992 T 16 CATAB v2.0f-lin.ifort 2021-Apr-14 07:48:34 2021-Apr-14 07:48
2105-Feb-22 00:17 00:05 Jupiter 1.96872008096272 1.96871914623528 1.96872101569418 3.63893220836771 3.51871385985082 2489947.511518871 5.33057870516926 355.578100051046 34.3278775998049 -89.6431714495401 1652257.81021126 T 16 CATAB v2.0f-lin.ifort 2021-Apr-14 07:48:34 2021-Apr-14 07:48
2155-Jan-27 08:48 00:08 Jupiter 1.93315472020237 1.93315375292542 1.93315568749493 3.63714292940091 3.51461200504305 2508183.866999745 8.12133515348222 434.98473902104 30.8808161854671 89.0235331614655 2194195.86210472 T 16 CATAB v2.0f-lin.ifort 2021-Apr-14 07:48:34 2021-Apr-14 07:48
2164-Oct-12 13:20 00:09 Jupiter 1.95745112834222 1.95745007079553 1.95745218591928 3.33938722928428 3.20719081643538 2511730.055616104 9.1214571613332 647.30175459607 31.7774534798557 89.7289703260961 1621057.83291232 T 16 CATAB v2.0f-lin.ifort 2021-Apr-14 07:48:34 2021-Apr-14 07:48
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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