+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   58008 (2002 TW240) Classification: Jupiter Trojan          SPK-ID: 2058008 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04175747670373647 5.6506e-08   a 5.179407055652363 1.0558e-07 au q 4.963128086186791 2.7321e-07 au i 17.35109323660893 4.9029e-06 deg node 90.84713837382073 1.9233e-05 deg peri 341.1996125037933 7.7159e-05 deg M 145.5759846199628 7.5457e-05 deg tp 2457259.472109423794 (2015-Aug-24.97210942) 0.00087863 TDB period 4305.449434147157 11.79 0.00013164 3.604e-07 d yr n .08361496413005962 2.5566e-09 deg/d Q 5.395686025117935 1.0998e-07 au   Orbit Determination Parameters    # obs. used (total)      1109      data-arc span      10805 days (29.58 yr)      first obs. used      1990-12-18      last obs. used      2020-07-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47123      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 22:52:45   Additional Information  Earth MOID = 3.98248 au   Jupiter MOID = .130292 au   T_jup = 2.908  [ 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 11.6   n/a MPO319763   diameter diameter 25.338 km 1.182 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)   geometric albedo albedo 0.076   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)   58008 (2002 TW240)          Discovered 2002-Oct-06 by NEAT at Haleakala Reference: 20030318/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-20 10:45 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin