+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   243399 (2008 YV172) Classification: Main-belt Asteroid          SPK-ID: 2243399 [ 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 10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09375426630163992 8.2588e-08   a 2.575781504096557 3.5771e-08 au q 2.334290999026649 1.9098e-07 au i 1.304617379390912 6.8234e-06 deg node 239.4374730116139 0.00047782 deg peri 30.42953587471704 0.0004868 deg M 122.0979340928637 8.4101e-05 deg tp 2458488.384674917675 (2019-Jan-04.88467492) 0.00035872 TDB period 1509.947882405755 4.13 3.1454e-05 8.612e-08 d yr n .2384188250434331 4.9665e-09 deg/d Q 2.817272009166464 3.9125e-08 au   Orbit Determination Parameters    # obs. used (total)      130      data-arc span      8249 days (22.58 yr)      first obs. used      1997-03-03      last obs. used      2019-10-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52827      source      ORB      producer      Otto Matic      solution date      2019-Nov-08 02:14:59   Additional Information  Earth MOID = 1.31827 au   Jupiter MOID = 2.24819 au   T_jup = 3.421  [ 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 17.2   n/a MPO450092   243399 (2008 YV172)          Discovered 2008-Dec-29 by Spacewatch at Kitt Peak Reference: 20100626/Numbers.arc Last Updated: 2010-06-28 [ 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 2147-Jun-16 07:59 00:14 Thisb 0.0168724749989325 0.0168112304089622 0.0169337803529638 2.32207409147212 2.32207391744381 2505401.832634831 13.658353158397 3441.3051390567 79.5400523108852 -27.59398020245 14688.0369999114 T 10 CATAB v2.0f-lin.ifort 2019-Nov-08 02:15:01 2019-Nov-08 02:15 Alternate Designations  2008 YV172 = 1997 EZ13 = 2007 RZ221  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-20 08:27 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin