+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   4239 Goodman (1980 OE) Classification: Main-belt Asteroid          SPK-ID: 2004239 [ 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 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1862767655774164 3.4832e-08   a 2.174399663173387 7.1295e-09 au q 1.769359526844825 7.6507e-08 au i 1.279284252421946 4.1363e-06 deg node 294.7669021254487 0.00017139 deg peri 20.0472853199476 0.00017173 deg M 158.6590993941305 1.2054e-05 deg tp 2458484.357086445948 (2018-Dec-31.85708645) 3.8352e-05 TDB period 1171.136415049718 3.21 5.7599e-06 1.577e-08 d yr n .3073937377181777 1.5118e-09 deg/d Q 2.579439799501949 8.4575e-09 au   Orbit Determination Parameters    # obs. used (total)      2010      data-arc span      15747 days (43.11 yr)      first obs. used      1977-09-22      last obs. used      2020-11-02      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51698      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:16:31   Additional Information  Earth MOID = .755611 au   Jupiter MOID = 2.69544 au   T_jup = 3.663  [ 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 14.1   n/a MPO250246   diameter diameter 4.354 km 0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.290   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   4239 Goodman (1980 OE)          Discovered 1980-Jul-17 by Bowell, E. at Flagstaff Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ 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 2196-Dec-13 20:35 < 00:01 Hebe 0.0285625662089403 0.0285610790356106 0.0285640586154363 6.018991371865 6.01899133570432 2523480.357805860 0.535315641861236 649.62403980922 24.4184133534979 -83.7979713700895 173912.042818191 T 33 CATAB v2.0f-lin.ifort 2020-Dec-18 02:16:36 2020-Dec-18 02:16 Alternate Designations  1980 OE = 1977 SC3 = 1977 TT4  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-22 19:46 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin