+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .118698345217908 9.2309e-08   a 3.117789920694366 3.2696e-08 au q 2.747713416370872 2.9987e-07 au i 21.55530668749878 1.0098e-05 deg node 330.0072511850489 1.5196e-05 deg peri 31.53100657948136 3.4874e-05 deg M 221.3350388741782 3.135e-05 deg tp 2459775.020528994910 (2022-Jul-14.52052899) 0.00018149 TDB period 2010.799182247382 5.51 3.163e-05 8.66e-08 d yr n .1790332934180149 2.8162e-09 deg/d Q 3.487866425017859 3.6576e-08 au   Orbit Determination Parameters    # obs. used (total)      391      data-arc span      9302 days (25.47 yr)      first obs. used      1994-08-10      last obs. used      2020-01-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .64795      source      ORB      producer      Otto Matic      solution date      2020-Feb-24 01:07:25   Additional Information  Earth MOID = 1.75939 au   Jupiter MOID = 1.9691 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 14.7   n/a MPO432533   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 [ show close-approach data ] Alternate Designations  1997 CX8 = 1994 PC11 = 2000 SR310  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-28 04:13 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin