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266889 (2009 WW46)
Classification: Main-belt Asteroid          SPK-ID: 2266889
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05385138881867758 4.467e-08  
a 2.982361821574685 3.0572e-08 au
q 2.821757495523087 1.3401e-07 au
i 10.17117284843852 4.9754e-06 deg
node 90.79169704414069 2.479e-05 deg
peri 165.9681467440217 5.5101e-05 deg
M 209.9531286543318 5.28e-05 deg
tp 2459984.585399844616
(2023-Feb-09.08539984)
0.00028084 TDB
period 1881.217125106092
5.15
2.8926e-05
7.92e-08
d
yr
n .1913654703625439 2.9425e-09 deg/d
Q 3.142966147626283 3.2218e-08 au
  Orbit Determination Parameters
   # obs. used (total)      409  
   data-arc span      7275 days (19.92 yr)  
   first obs. used      2001-02-16  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52618  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 14:15:20  

Additional Information
 Earth MOID = 1.80572 au 
 Jupiter MOID = 1.91478 au 
 T_jup = 3.233 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457817.5 (2017-Mar-05.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05565503942046689 4.4539e-08  
q 2.817606898365216 1.3416e-07 au
tp 2458101.224130800958
(2017-Dec-13.72413080)
0.0002626 TDB
node 90.8378796291689 2.4819e-05 deg
peri 165.3877749160198 5.3876e-05 deg
i 10.16472212888334 4.972e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      409  
   data-arc span      7275 days (19.92 yr)  
   first obs. used      2001-02-16  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52618  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 14:15:20  

Additional Information
 Jupiter MOID = 1.91478 au 
 T_jup = 3.233 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.983723718480273E-15 -5.833528340895646E-15 3.977312273213991E-13 6.660500789625428E-16 4.406528052491425E-14 2.618120124848513E-15
q -5.833528340895646E-15 1.799780102315467E-14 1.48620928256394E-12 -2.735535364108881E-15 3.330291911515181E-13 -7.47041633333389E-15
tp 3.977312273213991E-13 1.48620928256394E-12 6.895944626945165E-8 -2.32696748233181E-11 1.257843801417783E-8 -3.336770985869216E-12
node 6.660500789625428E-16 -2.735535364108881E-15 -2.32696748233181E-11 6.160029610248465E-10 -6.104604102434771E-10 -2.21077735603976E-11
peri 4.406528052491425E-14 3.330291911515181E-13 1.257843801417783E-8 -6.104604102434771E-10 2.902613221960871E-9 2.109439115054892E-11
i 2.618120124848513E-15 -7.47041633333389E-15 -3.336770985869216E-12 -2.21077735603976E-11 2.109439115054892E-11 2.472086864255289E-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 15.2   n/a MPO454983  

266889 (2009 WW46)          Discovered 2009-Nov-18 by Mt. Lemmon Survey at Mount Lemmon
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
1916-Nov-26 04:27 00:05 Jupiter 1.94414264541921 1.9441418733431 1.9441434175087 3.22771753817392 3.0897899771298 2421193.685199534 4.76504352948742 335.440883342904 19.5911236259117 -83.8148791014151 3053260.40973539 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 14:15:21 2021-Feb-24 14:15
1953-May-17 14:09 00:03 Jupiter 1.91945207226383 1.91945156927816 1.91945257524972 3.57589187870905 3.45028053083701 2434515.089261544 2.9005168694412 91.4012124567751 17.2115679461164 -83.7784150649692 2275041.50780695 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 14:15:21 2021-Feb-24 14:15
1989-Oct-24 14:47 00:01 Jupiter 1.9968963124152 1.99689566538604 1.99689695944505 3.90072116080109 3.79042036836191 2447824.115694966 1.21946630978811 89.2252825322749 17.619486013092 -74.5204834628978 3044396.98226821 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 14:15:21 2021-Feb-24 14:15
2035-Mar-08 12:04 < 00:01 Jupiter 1.97774746064361 1.97774698221394 1.97774793907328 3.24822321370084 3.11358335255304 2464395.002946250 0.88076053539739 97.3342009484465 19.3544414648755 -87.9249693506627 3205960.06667973 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 14:15:21 2021-Feb-24 14:15
2071-Aug-31 15:56 00:03 Jupiter 1.91354701903948 1.91354657010518 1.91354746797389 3.46449825409899 3.33428517597088 2477720.164184964 2.51470645132797 105.498555852938 18.4251745994443 -84.3756094024763 3027855.44284156 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 14:15:21 2021-Feb-24 14:15
2108-Feb-11 16:06 00:04 Jupiter 1.9499706124195 1.94996980505169 1.94997141979251 3.78373817552267 3.66714063630589 2491032.171168936 4.07441359821086 191.185462836025 16.0610405393731 -80.3452460515368 2895201.82707549 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 14:15:21 2021-Feb-24 14:15
2189-Dec-15 12:01 00:08 Jupiter 1.92695306261963 1.92695193466293 1.92695419060415 3.39706780857018 3.2651092248783 2520925.000357646 8.06084251135876 416.226892427157 20.2854777437076 -81.4981748579948 3143026.77770087 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 14:15:21 2021-Feb-24 14:15

Alternate Designations
 2009 WW46 = 2006 DJ64 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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