+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   243874 (2000 XY30) Classification: Main-belt Asteroid          SPK-ID: 2243874 [ 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 .2069477651086473 4.3226e-08   a 2.473035751295848 1.8344e-08 au q 1.961246529531388 1.1262e-07 au i 9.133069223214251 7.6579e-06 deg node 20.32634228773836 4.3241e-05 deg peri 37.72677012679782 5.058e-05 deg M 14.63902628382794 2.5471e-05 deg tp 2458942.736472241453 (2020-Apr-03.23647224) 0.00010046 TDB period 1420.509096021605 3.89 1.5805e-05 4.327e-08 d yr n .2534302673655844 2.8198e-09 deg/d Q 2.984824973060308 2.214e-08 au   Orbit Determination Parameters    # obs. used (total)      248      data-arc span      9428 days (25.81 yr)      first obs. used      1994-04-03      last obs. used      2020-01-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58253      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 09:26:10   Additional Information  Earth MOID = .981139 au   Jupiter MOID = 2.42478 au   T_jup = 3.436  [ 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 16.5   n/a MPO454791   diameter diameter 3.238 km 0.358 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.051   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   243874 (2000 XY30)          Discovered 2000-Dec-04 by LINEAR at Socorro Reference: 20100726/Numbers.arc Last Updated: 2010-07-28 [ 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 1909-Feb-06 18:03 00:05 Iris 0.0441564894113241 0.0441364219642925 0.0441766155719364 3.52331488333822 3.52331484638715 2418344.252211207 4.77392406586248 2784.91313711761 216.375257882771 69.3812714784087 28565.3762312374 T 14 CATAB v2.0f-lin.ifort 2020-Feb-25 09:26:15 2020-Feb-25 09:26 2049-Feb-24 05:52 00:03 Iris 0.0441266608503305 0.0441131874300927 0.0441401386282191 3.49981024766545 3.49981021044107 2469496.744318044 3.36418029042065 983.576631162904 184.690437874515 48.0675787495285 26945.9959390852 T 14 CATAB v2.0f-lin.ifort 2020-Feb-25 09:26:15 2020-Feb-25 09:26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-20 02:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin