+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101693 (1999 CQ125) Classification: Main-belt Asteroid          SPK-ID: 2101693 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1744913060686057 3.8586e-08   a 2.452098645752129 9.7851e-09 au q 2.024228750445781 9.7687e-08 au i 12.61309320440612 4.287e-06 deg node 18.75733806114794 1.7629e-05 deg peri 95.43038421342932 2.102e-05 deg M 266.9646743621356 1.3409e-05 deg tp 2459562.952178488942 (2021-Dec-14.45217849) 5.3272e-05 TDB period 1402.507954493729 3.84 8.3951e-06 2.298e-08 d yr n .256683036161425 1.5364e-09 deg/d Q 2.879968541058478 1.1493e-08 au   Orbit Determination Parameters    # obs. used (total)      888      data-arc span      8084 days (22.13 yr)      first obs. used      1998-11-25      last obs. used      2021-01-12      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .53262      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:38:05   Additional Information  Earth MOID = 1.08505 au   Jupiter MOID = 2.30852 au   T_jup = 3.441  [ 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 15.22   n/a E2021B55   diameter diameter 1.658 km 0.391 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.535   0.212 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   101693 (1999 CQ125)          Discovered 1999-Feb-11 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1999 CQ125 = 2001 RE135  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-20 05:13 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin