+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   22494 Trillium (1997 JL) Classification: Main-belt Asteroid          SPK-ID: 2022494 [ 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 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08028964663171292 3.5997e-08   a 2.472776278400978 1.163e-08 au q 2.274237944808881 9.3762e-08 au i 3.323721162615143 3.83e-06 deg node 127.5714260271059 6.8661e-05 deg peri 162.4529614401096 7.4157e-05 deg M 282.0038274447966 2.7228e-05 deg tp 2459308.213433586070 (2021-Apr-03.71343359) 0.00010716 TDB period 1420.28554045496 3.89 1.002e-05 2.743e-08 d yr n .2534701577576303 1.7883e-09 deg/d Q 2.671314611993075 1.2564e-08 au   Orbit Determination Parameters    # obs. used (total)      1018      data-arc span      10444 days (28.59 yr)      first obs. used      1991-12-08      last obs. used      2020-07-12      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59203      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 01:50:59   Additional Information  Earth MOID = 1.25824 au   Jupiter MOID = 2.44051 au   T_jup = 3.476  [ 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 15.3   n/a MPO381443   22494 Trillium           Discovered 1997 May 2 by Spacewatch at Kitt Peak. Since 1937, the White Trillium (Trillium grandiflorum) has been the official flower of Canada's province of Ontario, where it is often found in forests. Name suggested and citation prepared by Robert Jedicke and Peter Jedicke. 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 2016-08-18 Last Updated: 2016-11-23 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-26 04:06 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin