+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100525 (1997 CX8) Classification: Main-belt Asteroid          SPK-ID: 2100525 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1188070624272259 8.6196e-08   a 3.117923532085286 3.2569e-08 au q 2.747492196365513 2.8237e-07 au i 21.55535358729434 9.1394e-06 deg node 330.0062209506182 1.5138e-05 deg peri 31.47509999612873 3.1485e-05 deg M 257.2162371836311 2.9264e-05 deg tp 2459774.641088777294 (2022-Jul-14.14108878) 0.00016884 TDB period 2010.928441383244 5.51 3.1508e-05 8.626e-08 d yr n .1790217854556621 2.805e-09 deg/d Q 3.488354867805059 3.6438e-08 au   Orbit Determination Parameters    # obs. used (total)      399      data-arc span      9417 days (25.78 yr)      first obs. used      1994-08-10      last obs. used      2020-05-22      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .64507      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:32:34   Additional Information  Earth MOID = 1.75736 au   Jupiter MOID = 1.96894 au   T_jup = 3.099  [ 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 14.71   n/a E2021B55   diameter diameter 7.322 km 0.330 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.048   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   100525 (1997 CX8)          Discovered 1997-Feb-01 by Spacewatch at Kitt Peak Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ 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 1908-Oct-12 22:27 00:04 Jupiter 1.97444493598684 1.97444412998978 1.97444574200477 6.09789248921748 6.02713093954383 2418227.435408144 4.15833729269683 811.610293717725 35.8331683149484 -88.8776091253116 2367599.03690887 T 16 CATAB v2.0f-lin.ifort 2021-Apr-13 15:32:36 2021-Apr-13 15:32 1991-Jun-23 15:06 < 00:01 Jupiter 1.98634394909273 1.9863430832284 1.98634481497208 6.11023431114708 6.0400428453287 2448431.129038794 0.937043748540185 439.868418399816 31.5791212114997 -86.3512306752959 2382030.56374623 T 16 CATAB v2.0f-lin.ifort 2021-Apr-13 15:32:36 2021-Apr-13 15:32 Alternate Designations  1997 CX8 = 1994 PC11 = 2000 SR310  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-23 05:50 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin