+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07915545801390712 3.4757e-08   a 3.048993152898124 2.0672e-08 au q 2.807648703399206 1.0866e-07 au i 9.022777786401317 4.969e-06 deg node 227.7541334475694 2.7385e-05 deg peri 232.615285727796 4.349e-05 deg M 20.8739906005335 3.327e-05 deg tp 2458887.744928866335 (2020-Feb-08.24492887) 0.00017963 TDB period 1944.612622709626 5.32 1.9776e-05 5.414e-08 d yr n .1851268452111431 1.8827e-09 deg/d Q 3.290337602397042 2.2308e-08 au   Orbit Determination Parameters    # obs. used (total)      1726      data-arc span      12487 days (34.19 yr)      first obs. used      1986-09-08      last obs. used      2020-11-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .45395      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:56:56   Additional Information  Earth MOID = 1.83535 au   Jupiter MOID = 1.94593 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 13.0   n/a MPO452375   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-Jan-24 23:30 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin