+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   183641 (2003 WU45) Classification: Main-belt Asteroid          SPK-ID: 2183641 [ 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 .1540088429223236 5.872e-08   a 2.190976782326337 1.3318e-08 au q 1.853546983210582 1.3378e-07 au i 2.135213503339788 4.8356e-06 deg node 321.4499986917212 0.00015323 deg peri 181.2466067016503 0.00015451 deg M 321.0142118678089 2.3859e-05 deg tp 2459128.779987068559 (2020-Oct-06.27998707) 7.9258e-05 TDB period 1184.55461739272 3.24 1.0801e-05 2.957e-08 d yr n .3039116936561211 2.7711e-09 deg/d Q 2.528406581442091 1.5369e-08 au   Orbit Determination Parameters    # obs. used (total)      347      data-arc span      7952 days (21.77 yr)      first obs. used      1998-03-03      last obs. used      2019-12-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60681      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 08:33:05   Additional Information  Earth MOID = .866146 au   Jupiter MOID = 2.48469 au   T_jup = 3.656  [ hide covariance matrix ] Orbital Elements at Epoch 2457252.5 (2015-Aug-18.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1535726540069953 5.8807e-08   q 1.854647793499469 1.3392e-07 au tp 2456759.888187859635 (2014-Apr-12.38818786) 6.753e-05 TDB node 321.5290046544521 0.00015319 deg peri 181.2734077390338 0.00015448 deg i 2.135378151470668 4.8369e-06 deg   Orbit Determination Parameters    # obs. used (total)      347      data-arc span      7952 days (21.77 yr)      first obs. used      1998-03-03      last obs. used      2019-12-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60681      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 08:33:05   Additional Information  Jupiter MOID = 2.48469 au   T_jup = 3.656  Orbit Covariance (6×6)   e q tp node peri i e 3.458232639050862E-15 -7.852135256164525E-15 -5.078449360516255E-13 -3.567264298250338E-15 1.421655385568427E-14 -3.782732604672058E-17 q -7.852135256164525E-15 1.793366653947763E-14 1.446826565003603E-12 6.61969770594103E-15 6.41864398978518E-14 5.696524050912761E-16 tp -5.078449360516255E-13 1.446826565003603E-12 4.560336116842879E-9 -1.284530756542705E-11 1.362200236046855E-9 4.609909473307114E-12 node -3.567264298250338E-15 6.61969770594103E-15 -1.284530756542705E-11 2.346864170577024E-8 -2.345545000442353E-8 1.618783529559649E-10 peri 1.421655385568427E-14 6.41864398978518E-14 1.362200236046855E-9 -2.345545000442353E-8 2.38632256902492E-8 -1.603698755179849E-10 i -3.782732604672058E-17 5.696524050912761E-16 4.609909473307114E-12 1.618783529559649E-10 -1.603698755179849E-10 2.339598944181249E-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 16.9   n/a MPO454264   183641 (2003 WU45)          Discovered 2003-Nov-16 by Spacewatch at Kitt Peak Reference: 20080420/Numbers.arc Last Updated: 2008-04-23 [ show close-approach data ] Alternate Designations  2003 WU45 = 2000 YS88  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Nov-27 04:07 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin