+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14548 (1997 TJ24) Classification: Main-belt Asteroid          SPK-ID: 2014548 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 36 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07913701510500705 2.3407e-08   a 3.048607405069059 1.89e-08 au q 2.807349714804873 6.9585e-08 au i 9.022933942662734 4.0401e-07 deg node 227.7452866700132 8.2275e-06 deg peri 232.5003602155428 1.3527e-05 deg M 58.01406556252942 1.238e-05 deg tp 2458887.184790403858 (2020-Feb-07.68479040) 6.5802e-05 TDB period 1944.243596116166 5.32 1.8081e-05 4.95e-08 d yr n .1851619831584573 1.7219e-09 deg/d Q 3.289865095333246 2.0396e-08 au   Orbit Determination Parameters    # obs. used (total)      1910      data-arc span      12598 days (34.49 yr)      first obs. used      1986-09-08      last obs. used      2021-03-06      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .4499      source      ORB      producer      Otto Matic      solution date      2021-Mar-17 00:12:19   Additional Information  Earth MOID = 1.83478 au   Jupiter MOID = 1.94613 au   T_jup = 3.214  [ 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 13.08   n/a E2020-QM5   diameter diameter 7.963 km 0.185 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.211   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   14548 (1997 TJ24)          Discovered 1997-Oct-05 by Beijing Schmidt CCD Asteroid Program at Xinglong Reference: 20000418/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1997 TJ24 = 1986 RW9  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-12 14:01 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin