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JPL Small-Body Database Browser
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136841 (1997 WU50)
Classification: Main-belt Asteroid          SPK-ID: 2136841
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3749245436166594 6.8978e-08  
a 2.747938693121373 1.4783e-08 au
q 1.717669032716283 1.9279e-07 au
i 11.28423834213219 5.8051e-06 deg
node 68.22668356239967 3.0827e-05 deg
peri 304.0687603774142 3.137e-05 deg
M 278.69041851048 6.833e-06 deg
tp 2458976.292588708498
(2020-May-06.79258871)
3.3777e-05 TDB
period 1663.830134859273
4.56
1.3427e-05
3.676e-08
d
yr
n .2163682412390306 1.746e-09 deg/d
Q 3.778208353526464 2.0326e-08 au
  Orbit Determination Parameters
   # obs. used (total)      473  
   data-arc span      7448 days (20.39 yr)  
   first obs. used      1997-11-29  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56789  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 05:35:34  

Additional Information
 Earth MOID = .747928 au 
 Jupiter MOID = 1.78879 au 
 T_jup = 3.215 
[ 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 15.3   n/a MPO436675  
diameter diameter 2.176 km 0.522 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.258   0.183 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

136841 (1997 WU50)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ 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
1923-Feb-03 21:03 00:02 Jupiter 1.91252492622721 1.91252352038813 1.91252633210575 2.04934655312506 1.82045534395014 2423454.376960680 2.19914923888999 478.019943098598 60.9498888752051 85.6959520573216 1172960.93308219 T 18 CATAB v2.0e-lin.ifort 2018-May-07 05:35:38 2018-Dec-17 18:36
1981-Dec-27 13:10 < 00:01 Jupiter 1.80398321818474 1.80398260776289 1.80398382861018 1.83036085978866 1.55279193360391 2444966.048674981 0.788286683179322 171.244887895247 94.4593893030771 67.4565246405542 1086111.90101767 T 18 CATAB v2.0e-lin.ifort 2018-May-07 05:35:38 2018-Dec-17 18:36
2040-Nov-25 13:31 < 00:01 Jupiter 1.77911673050606 1.7791160801725 1.77911738084164 1.63812223272115 1.31577401790826 2466484.062916514 0.659343603073619 220.60632820194 125.034583671463 40.6744064146328 1011421.58836617 T 18 CATAB v2.0e-lin.ifort 2018-May-07 05:35:38 2018-Dec-17 18:36
2099-Oct-22 01:17 00:02 Jupiter 1.84323472550512 1.84323364769743 1.843235803317 1.36452700444015 0.971016482920136 2487998.553239812 2.07691576179159 653.542632634687 225.738834932061 23.148013193925 895027.295838658 T 18 CATAB v2.0e-lin.ifort 2018-May-07 05:35:38 2018-Dec-17 18:36
2136-Oct-15 06:50 00:03 Jupiter 1.91787070947021 1.91786882329032 1.91787259574277 2.2876467836751 2.08567329837604 2501505.784700987 2.90319911404992 711.981431527219 36.0824207022901 84.9964432146263 1369532.39831606 T 18 CATAB v2.0e-lin.ifort 2018-May-07 05:35:38 2018-Dec-17 18:36
2158-Sep-03 05:46 00:04 Jupiter 1.98589140275249 1.98588891992187 1.98589388558405 0.891188263803309 n/a 2509498.739962387 3.82600377513017 179.758908449642 105.621971652307 63.6346784109318 2624181.90416342 F 18 CATAB v2.0e-lin.ifort 2018-May-07 05:35:38 2018-Dec-17 18:36
2195-Sep-09 14:00 00:04 Jupiter 1.80187942241892 1.80187792674314 1.80188091815799 2.1089028134475 1.87278311220227 2523019.083676496 4.04048762789653 584.66207071722 58.3879169961057 87.4482918144157 1247093.46957552 T 18 CATAB v2.0e-lin.ifort 2018-May-07 05:35:38 2018-Dec-17 18:36

Alternate Designations
 1997 WU50 = 2003 AJ78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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