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13987 (1992 WK9)
Classification: Main-belt Asteroid          SPK-ID: 2013987
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .208255867715916 4.3057e-08  
a 3.162222852323272 1.8898e-08 au
q 2.50367138830159 1.3795e-07 au
i .8401106936381942 3.976e-06 deg
node 54.14540560020929 0.00034497 deg
peri 324.3881256635739 0.00034511 deg
M 340.8051826040565 1.2424e-05 deg
tp 2459110.013742401916
(2020-Sep-17.51374240)
7.1353e-05 TDB
period 2053.937083716239
5.62
1.8412e-05
5.041e-08
d
yr
n .1752731390138997 1.5712e-09 deg/d
Q 3.820774316344954 2.2834e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1204  
   data-arc span      9839 days (26.94 yr)  
   first obs. used      1992-10-19  
   last obs. used      2019-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56648  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:46:00  

Additional Information
 Earth MOID = 1.50588 au 
 Jupiter MOID = 1.64157 au 
 T_jup = 3.170 
[ 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 13.8   n/a MPO439190  
diameter diameter 8.501 km 0.249 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.081   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13987 (1992 WK9)          Discovered 1992-Nov-16 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20000320/Numbers.arcLast Updated: 2004-04-19

[ 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-Apr-23 21:09 00:02 Jupiter 1.71083278392258 1.71083193937067 1.71083362847206 1.43021298743013 1.02728857172475 2423533.381515322 2.34630486138835 221.573089231575 99.2210596630963 -6.83661167515832 1104385.35067656 T 26 CATAB v2.0f-lin.ifort 2019-Nov-07 03:46:06 2019-Nov-07 03:46
1933-Nov-09 23:33 00:02 Jupiter 1.63653629475483 1.6365357505951 1.636536838934 1.15776997549978 0.552531262358515 2427386.480931379 1.94310365990377 1294.03392830304 393.81654235545 -21.2524531001313 1819295.0047364 T 26 CATAB v2.0f-lin.ifort 2019-Nov-07 03:46:06 2019-Nov-07 03:46
1944-May-20 06:30 00:02 Jupiter 1.86503611013224 1.86503517854654 1.86503704171795 2.10330490079826 1.87498638794274 2431230.770646185 1.67090369228518 88.2469687200417 10.6828111106673 -81.7794037197975 1912303.90635122 T 26 CATAB v2.0f-lin.ifort 2019-Nov-07 03:46:06 2019-Nov-07 03:46
2018-Aug-23 06:16 < 00:01 Jupiter 1.75646712843908 1.75646672818702 1.75646752869074 1.65174835095351 1.3280854837415 2458353.761241599 0.31536132885357 68.3845780214824 45.8204500158774 -86.3582039123399 2359048.61857748 T 26 CATAB v2.0f-lin.ifort 2019-Nov-07 03:46:06 2019-Nov-07 03:46
2029-Mar-07 20:31 < 00:01 Jupiter 1.62281761290729 1.62281718919822 1.62281803662282 1.1080224227525 0.42874524538544 2462203.355036179 0.562802371882004 2102.36202098364 514.202087949272 -8.50482581222736 1772396.50103394 T 26 CATAB v2.0f-lin.ifort 2019-Nov-07 03:46:06 2019-Nov-07 03:46
2039-Sep-21 02:21 < 00:01 Jupiter 1.80081219480447 1.80081154553107 1.80081284407807 1.78330931847825 1.49648937984391 2466052.597624659 0.919059853012075 91.7454774981502 30.969554491561 -69.6559689337674 2242352.43037062 T 26 CATAB v2.0f-lin.ifort 2019-Nov-07 03:46:06 2019-Nov-07 03:46
2113-Dec-23 04:37 00:03 Jupiter 1.81398340149954 1.81398225260145 1.81398455039567 1.94392513777489 1.68670202511064 2493173.692680159 2.73331329826842 63.6922125373693 45.4546936831471 67.8588570907443 834212.022183864 T 26 CATAB v2.0f-lin.ifort 2019-Nov-07 03:46:06 2019-Nov-07 03:46
2124-Jul-01 03:45 00:03 Jupiter 1.62457228597643 1.62457186639652 1.62457270555699 1.11965293962509 0.459193848582366 2497016.656421251 2.95259132834253 1782.62656986515 413.798332975153 -6.15686992740011 1616555.43311495 T 26 CATAB v2.0f-lin.ifort 2019-Nov-07 03:46:06 2019-Nov-07 03:46
2135-Jan-17 12:29 00:03 Jupiter 1.75026515167305 1.75026384198947 1.75026646137047 1.5506200223193 1.19855887201989 2500869.020210364 3.37547658318897 383.905948187015 63.3881815712519 -60.9136610132415 2255970.36466531 T 26 CATAB v2.0f-lin.ifort 2019-Nov-07 03:46:06 2019-Nov-07 03:46

Alternate Designations
 1992 WK9 = 1981 UP = 1986 PS 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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