+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102878 (1999 WZ14) Classification: Main-belt Asteroid          SPK-ID: 2102878 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1650885104379305 7.9997e-08   a 2.310140196217432 6.357e-09 au q 1.928762592321107 1.8628e-07 au i 6.633177047621684 5.9018e-06 deg node 33.54196196076291 3.6033e-05 deg peri 299.2899360377036 3.8784e-05 deg M 43.61857481791132 1.3519e-05 deg tp 2459045.109343025328 (2020-Jul-14.60934303) 4.8315e-05 TDB period 1282.495742797877 3.51 5.2937e-06 1.449e-08 d yr n .2807026861661375 1.1586e-09 deg/d Q 2.691517800113756 7.4064e-09 au   Orbit Determination Parameters    # obs. used (total)      945      data-arc span      8318 days (22.77 yr)      first obs. used      1998-03-29      last obs. used      2021-01-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51423      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:32:39   Additional Information  Earth MOID = .927598 au   Jupiter MOID = 2.68685 au   T_jup = 3.558  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.19   n/a E2021B55   102878 (1999 WZ14)          Discovered 1999-Nov-29 by Spacewatch at Kitt Peak Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-07 09:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin