+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   249331 (2008 UB355) Classification: Outer Main-belt Asteroid          SPK-ID: 2249331 [ 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 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1318652764461517 5.4474e-08   a 3.210640613222878 4.7049e-08 au q 2.787268601191002 1.7965e-07 au i 5.35482720651314 5.5777e-06 deg node 60.27777067258789 5.9262e-05 deg peri 152.9552777660348 6.3114e-05 deg M 209.6471824221849 2.5198e-05 deg tp 2459878.096817681760 (2022-Oct-25.59681768) 0.00016013 TDB period 2101.289882392271 5.75 4.6188e-05 1.265e-07 d yr n .1713233395433039 3.7659e-09 deg/d Q 3.634012625254755 5.3253e-08 au   Orbit Determination Parameters    # obs. used (total)      251      data-arc span      5378 days (14.72 yr)      first obs. used      2005-03-08      last obs. used      2019-11-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .65175      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 00:18:41   Additional Information  Earth MOID = 1.78218 au   Jupiter MOID = 1.33622 au   T_jup = 3.171  [ 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 15.5   n/a MPO454848   diameter diameter 3.426 km 0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.125   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   249331 (2008 UB355)          Discovered 2008-Oct-31 by Spacewatch at Kitt Peak Reference: 20100824/Numbers.arc Last Updated: 2010-08-27 [ 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 1903-Oct-30 12:46 00:05 Jupiter 1.56341782563186 1.5634151697653 1.56342048155237 1.99349629913805 1.70013974784079 2416418.032050132 5.48494733121896 543.696135744788 27.7737332896808 89.6975431879121 1823605.68077489 T 14 CATAB v2.0f-lin.ifort 2020-Nov-12 00:18:42 2020-Nov-12 00:18 1915-Apr-10 16:34 00:05 Jupiter 1.67955707547854 1.67955392098297 1.67956022998843 2.33098401184955 2.1035352162158 2420598.190158147 5.28564952253639 326.132572221022 18.9266571241986 -81.6652146726778 1773275.49203067 T 14 CATAB v2.0f-lin.ifort 2020-Nov-12 00:18:42 2020-Nov-12 00:18 1926-Aug-11 09:19 00:05 Jupiter 1.84980142742339 1.84979814477333 1.84980471007555 2.97463815975454 2.81650028683923 2424738.888016257 4.96401544211811 205.203744553793 35.6128700227814 -59.5117018200336 1385266.32809083 T 14 CATAB v2.0f-lin.ifort 2020-Nov-12 00:18:42 2020-Nov-12 00:18 2072-Dec-25 15:19 00:04 Jupiter 1.82686630844017 1.82686403767461 1.82686857920698 2.77918317012334 2.60702196477855 2478202.138229941 3.89195112628293 147.67564703659 24.7997269966368 -59.1432510396927 1456747.17944442 T 14 CATAB v2.0f-lin.ifort 2020-Nov-12 00:18:42 2020-Nov-12 00:18 2084-May-19 22:00 00:05 Jupiter 1.67644062724111 1.67643816810697 1.67644308637945 2.37505772008375 2.1518359866109 2482365.416349338 4.57853668825887 200.201926947217 12.9833543415634 -70.6621845758313 1482810.19305262 T 14 CATAB v2.0f-lin.ifort 2020-Nov-12 00:18:42 2020-Nov-12 00:18 2095-Nov-16 17:18 00:05 Jupiter 1.57168714400415 1.57168481458318 1.57168947343415 2.15174957192812 1.88472144364291 2486563.221047016 5.25450871958398 251.247509120421 16.576080835552 -78.7428103441778 1459245.92906067 T 14 CATAB v2.0f-lin.ifort 2020-Nov-12 00:18:42 2020-Nov-12 00:18 2107-Jun-15 14:31 00:06 Jupiter 1.50800506128787 1.50800309155522 1.5080070310314 2.0417996843431 1.74515835512226 2490791.105204542 6.16741006831121 263.26311143469 29.1877431573992 -82.9108587383245 1404047.07426204 T 14 CATAB v2.0f-lin.ifort 2020-Nov-12 00:18:42 2020-Nov-12 00:18 2119-Feb-03 00:18 00:08 Jupiter 1.47857059363443 1.47856910368501 1.47857208359041 2.00216212580442 1.69201701875657 2495041.512722922 7.63314850552439 217.969431417403 36.6076880436909 -84.3598568801428 1344163.49824792 T 14 CATAB v2.0f-lin.ifort 2020-Nov-12 00:18:42 2020-Nov-12 00:18 2130-Oct-01 08:18 00:10 Jupiter 1.47147864448715 1.47147786419864 1.47147942477574 2.00574757441513 1.69462968514232 2499299.846172784 9.9857619516956 131.22187822349 36.6599913189609 -81.1473217523241 1374101.91073836 T 14 CATAB v2.0f-lin.ifort 2020-Nov-12 00:18:42 2020-Nov-12 00:18 2142-May-21 12:20 00:14 Jupiter 1.48934796652587 1.48934670059268 1.4893492324953 2.05776928264224 1.75982206346313 2503550.013664355 13.5295242451652 434.327201889013 32.913653510581 -85.6707220819759 1674487.8598059 T 14 CATAB v2.0f-lin.ifort 2020-Nov-12 00:18:42 2020-Nov-12 00:18 2153-Dec-16 12:29 00:18 Jupiter 1.53714460131033 1.53714017836353 1.53714902454843 2.18221508899256 1.91311004382925 2507777.019803031 18.4754258337693 1164.36371943041 23.6128470976512 -85.1539259874154 1761313.1697986 T 14 CATAB v2.0f-lin.ifort 2020-Nov-12 00:18:42 2020-Nov-12 00:18 2165-Jun-06 11:04 00:25 Jupiter 1.63299801281963 1.63298860832549 1.63300741794247 2.45698161113912 2.23592827186678 2511966.961323236 24.5163294087645 1753.02134784668 18.3852349164869 -81.3016652400938 2067938.96909962 T 14 CATAB v2.0f-lin.ifort 2020-Nov-12 00:18:42 2020-Nov-12 00:18 2176-Oct-16 21:03 00:30 Jupiter 1.77940535354858 1.77939078807448 1.77941991948615 2.96207991661261 2.79676396845514 2516117.377342325 30.3941746909689 1652.87140418764 26.0396605278231 -71.4763402430349 2319360.83581624 T 14 CATAB v2.0f-lin.ifort 2020-Nov-12 00:18:42 2020-Nov-12 00:18 2188-Jan-24 22:04 00:35 Jupiter 1.96374332010097 1.96372568551429 1.96376095491871 3.73051327211583 3.61304139796332 2520234.419178696 34.5558177273394 1397.24057970479 33.804140755382 -57.7654718786253 2145841.20195957 T 14 CATAB v2.0f-lin.ifort 2020-Nov-12 00:18:42 2020-Nov-12 00:18 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-24 18:09 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin