+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   117378 (2004 XZ163) Classification: Main-belt Asteroid          SPK-ID: 2117378 [ 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 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0764800827505079 6.0221e-08   a 2.717535576791509 2.1767e-08 au q 2.509698231001045 1.7033e-07 au i 4.1707616622115 4.1409e-06 deg node 274.1405507217204 8.5008e-05 deg peri 96.95601821220426 8.97e-05 deg M 241.3660359160017 3.0595e-05 deg tp 2459739.722277038565 (2022-Jun-09.22227704) 0.00014174 TDB period 1636.293798599172 4.48 1.966e-05 5.383e-08 d yr n .2200093897001843 2.6434e-09 deg/d Q 2.925372922581973 2.3432e-08 au   Orbit Determination Parameters    # obs. used (total)      544      data-arc span      9944 days (27.23 yr)      first obs. used      1993-03-21      last obs. used      2020-06-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .594      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 18:19:08   Additional Information  Earth MOID = 1.51211 au   Jupiter MOID = 2.46157 au   T_jup = 3.352  [ 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 15.53   n/a E2021B55   diameter diameter 4.098 km 0.243 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.087   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   117378 (2004 XZ163)          Discovered 2004-Dec-03 by LONEOS at Anderson Mesa 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 1944-Jan-28 02:44 00:27 Hygie 0.0362190594449853 0.0362115838465259 0.0362265358859043 1.65214321614084 1.65214257046037 2431117.613704767 27.197326777271 460.124252859419 74.7416391459619 -37.5006110371709 44645.2262624947 T 23 CATAB v2.0f-lin.ifort 2020-Nov-12 18:19:09 2020-Nov-12 18:19 1966-May-12 09:56 00:10 Hygie 0.0239800337361667 0.0239738545131579 0.0239862150974395 1.98770437093966 1.98770356035024 2439257.913551775 9.86851513662921 478.016929654573 82.3832782011138 -51.3289906435203 34072.8664333698 T 23 CATAB v2.0f-lin.ifort 2020-Nov-12 18:19:09 2020-Nov-12 18:19 2128-Aug-04 08:34 00:36 Hygie 0.0155231954259752 0.0155193461036544 0.0155270853337106 1.7906164753242 1.79061508531109 2498511.856911814 35.8149157339522 1359.08361124365 74.1762616124996 82.5859922427376 30771.9946569776 T 23 CATAB v2.0f-lin.ifort 2020-Nov-12 18:19:09 2020-Nov-12 18:19 2139-Feb-07 21:09 00:01 Thisb 0.0473379122694492 0.0473265910433637 0.0473492696665314 2.45923112247106 2.45923106390226 2502351.381191192 1.24775366510162 2148.28019107766 63.2373167944811 -74.8776444524828 107952.111660331 T 23 CATAB v2.0f-lin.ifort 2020-Nov-12 18:19:09 2020-Nov-12 18:19 Alternate Designations  2004 XZ163 = 1993 FZ64  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-06 12:30 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin