+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100666 (1997 WO37) Classification: Main-belt Asteroid          SPK-ID: 2100666 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1976121154628787 4.5913e-08   a 2.434380277323726 1.1366e-08 au q 1.953317240880675 1.1174e-07 au i 3.182435675550619 4.3477e-06 deg node 104.7912875073585 9.2451e-05 deg peri 256.1802989030858 9.3109e-05 deg M 65.93459123303518 1.2362e-05 deg tp 2458946.407482925182 (2020-Apr-06.90748293) 4.6869e-05 TDB period 1387.334090290133 3.80 9.7161e-06 2.66e-08 d yr n .2594904879218481 1.8173e-09 deg/d Q 2.915443313766776 1.3612e-08 au   Orbit Determination Parameters    # obs. used (total)      1018      data-arc span      10509 days (28.77 yr)      first obs. used      1992-05-02      last obs. used      2021-02-08      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .54682      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:33:13   Additional Information  Earth MOID = .951556 au   Jupiter MOID = 2.54089 au   T_jup = 3.476  [ hide covariance matrix ] Orbital Elements at Epoch 2456445.5 (2013-Jun-02.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1983703338436495 4.6091e-08   q 1.95204926366005 1.1242e-07 au tp 2456173.723186788397 (2012-Sep-03.22318679) 4.2494e-05 TDB node 104.827533384398 9.254e-05 deg peri 256.4940421903605 9.3185e-05 deg i 3.181113939182098 4.347e-06 deg   Orbit Determination Parameters    # obs. used (total)      1018      data-arc span      10509 days (28.77 yr)      first obs. used      1992-05-02      last obs. used      2021-02-08      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .54682      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:33:13   Additional Information  Jupiter MOID = 2.54089 au   T_jup = 3.476  Orbit Covariance (6×6)   e q tp node peri i e 2.124386541214948E-15 -5.164176001762299E-15 5.844393883413042E-13 3.069010505593089E-15 9.567725472855744E-14 -2.886020048489129E-15 q -5.164176001762299E-15 1.263762444168838E-14 -1.43567938895333E-12 -8.314181654551847E-15 -2.314522621276202E-13 7.036033216436503E-15 tp 5.844393883413042E-13 -1.43567938895333E-12 1.805718944847208E-9 -3.666709157976582E-12 4.916310848519702E-10 -1.633890005953063E-12 node 3.069010505593089E-15 -8.314181654551847E-15 -3.666709157976582E-12 8.563622041388877E-9 -8.551140770142084E-9 -9.053649663684621E-11 peri 9.567725472855744E-14 -2.314522621276202E-13 4.916310848519702E-10 -8.551140770142084E-9 8.683509648988825E-9 9.002000795544789E-11 i -2.886020048489129E-15 7.036033216436503E-15 -1.633890005953063E-12 -9.053649663684621E-11 9.002000795544789E-11 1.889605238909995E-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 15.43   n/a E2021B55   100666 (1997 WO37)          Discovered 1997-Nov-29 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1997 WO37 = 1993 SX15 = 2001 XX59  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-23 13:00 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin