+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   35768 Wendybauer (1999 JR1) Classification: Main-belt Asteroid          SPK-ID: 2035768 [ 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 28 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05664233561333087 3.015e-08   a 2.91171172575902 1.423e-08 au q 2.746785572979307 8.9611e-08 au i 3.43901634143527 3.3013e-06 deg node 88.07197843253817 6.0099e-05 deg peri 202.5323299927035 7.0103e-05 deg M 10.93471471476498 3.4569e-05 deg tp 2458945.377875704419 (2020-Apr-05.87787570) 0.0001744 TDB period 1814.767487222517 4.97 1.3304e-05 3.642e-08 d yr n .1983725201904384 1.4542e-09 deg/d Q 3.076637878538734 1.5036e-08 au   Orbit Determination Parameters    # obs. used (total)      1465      data-arc span      16089 days (44.05 yr)      first obs. used      1976-10-22      last obs. used      2020-11-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52768      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 03:37:49   Additional Information  Earth MOID = 1.73089 au   Jupiter MOID = 2.01626 au   T_jup = 3.278  [ hide covariance matrix ] Orbital Elements at Epoch 2457151.5 (2015-May-09.0) TDB Reference: JPL 28 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05566533876915427 3.0313e-08   q 2.74806506526388 9.0072e-08 au tp 2457143.284686153127 (2015-Apr-30.78468615) 0.00018226 TDB node 88.08892613023036 6.0095e-05 deg peri 204.7860479137147 7.0377e-05 deg i 3.439854617065143 3.3009e-06 deg   Orbit Determination Parameters    # obs. used (total)      1465      data-arc span      16089 days (44.05 yr)      first obs. used      1976-10-22      last obs. used      2020-11-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52768      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 03:37:49   Additional Information  Jupiter MOID = 2.01626 au   T_jup = 3.278  Orbit Covariance (6×6)   e q tp node peri i e 9.188491373438297E-16 -2.700142085388563E-15 8.961465778950569E-13 7.35107810918708E-15 1.788062480581515E-13 -4.684294453007142E-16 q -2.700142085388563E-15 8.112908363934863E-15 -3.671201568829747E-12 -2.26213745638348E-14 -7.337928147253997E-13 1.462345413368051E-15 tp 8.961465778950569E-13 -3.671201568829747E-12 3.321956018896986E-8 6.178361495115149E-11 6.694032429665957E-9 2.776517003430427E-13 node 7.35107810918708E-15 -2.26213745638348E-14 6.178361495115149E-11 3.61145890497635E-9 -3.592174817884838E-9 1.284281144017546E-11 peri 1.788062480581515E-13 -7.337928147253997E-13 6.694032429665957E-9 -3.592174817884838E-9 4.952954976637344E-9 -1.276981352227463E-11 i -4.684294453007142E-16 1.462345413368051E-15 2.776517003430427E-13 1.284281144017546E-11 -1.276981352227463E-11 1.089613726552046E-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 14.4   n/a PDS3 (MPO 24334)   diameter diameter 3.338 km 0.801 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.275   0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   35768 Wendybauer           Discovered 1999 May 8 by the Catalina Sky Survey. Wendy Hagen Bauer (b. 1950) is a North American professor emerita of astronomy at Wellesley College, where she taught from 1979-2015. A dedicated educator, she taught classes ranging from upper level astronomy seminars on stars, to planetary geology. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2018-10-26 Last Updated: 2019-04-09 [ 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 1992-Aug-30 01:54 00:01 Thisb 0.0220900509063308 0.0220891098319678 0.0220909921109547 2.99404231031543 2.99404220722458 2448864.579031877 1.17731704688013 149.893222433603 37.7325981454339 -78.943418084113 85971.0242597764 T 28 CATAB v2.0f-lin.ifort 2020-Dec-18 03:37:53 2020-Dec-18 03:37 Alternate Designations  1999 JR1 = 1976 UC15 = 1998 BA6 = 1998 BG50  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-24 13:48 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin