+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0764190562406777 6.0907e-08   a 2.717461009207154 2.2089e-08 au q 2.509795203512704 1.7156e-07 au i 4.170793603417554 4.361e-06 deg node 274.1408981143826 8.6643e-05 deg peri 97.04593574601859 9.1674e-05 deg M 197.2574984796919 3.1235e-05 deg tp 2459740.176626755151 (2022-Jun-09.67662676) 0.00014518 TDB period 1636.226450646181 4.48 1.995e-05 5.462e-08 d yr n .2200184454039527 2.6826e-09 deg/d Q 2.925126814901604 2.3777e-08 au   Orbit Determination Parameters    # obs. used (total)      533      data-arc span      9898 days (27.10 yr)      first obs. used      1993-03-21      last obs. used      2020-04-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59626      source      ORB      producer      Otto Matic      solution date      2020-May-20 20:12:02   Additional Information  Earth MOID = 1.51375 au   Jupiter MOID = 2.46279 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 15.5   n/a MPO280567   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 22 CATAB v2.0f-lin.ifort 2020-May-20 20:12:17 2020-May-20 20:12 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 22 CATAB v2.0f-lin.ifort 2020-May-20 20:12:17 2020-May-20 20:12 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 22 CATAB v2.0f-lin.ifort 2020-May-20 20:12:17 2020-May-20 20:12 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 22 CATAB v2.0f-lin.ifort 2020-May-20 20:12:17 2020-May-20 20:12 Alternate Designations  2004 XZ163 = 1993 FZ64  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-26 17:37 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin