+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11717 (1998 HU94) Classification: Outer Main-belt Asteroid          SPK-ID: 2011717 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 37 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1525408920316371 2.1361e-08   a 3.213399423225976 1.5027e-08 au q 2.723224608753138 7.4378e-08 au i 1.048729386190839 7.1628e-07 deg node 20.03232860370962 9.7844e-06 deg peri 309.6111440163857 1.1921e-05 deg M 265.9679350559018 5.4565e-06 deg tp 2459946.064873942604 (2023-Jan-01.56487394) 3.3727e-05 TDB period 2103.9988299412 5.76 1.4759e-05 4.041e-08 d yr n .1711027567491855 1.2002e-09 deg/d Q 3.703574237698815 1.7319e-08 au   Orbit Determination Parameters    # obs. used (total)      2465      data-arc span      14164 days (38.78 yr)      first obs. used      1982-09-15      last obs. used      2021-06-26      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .48721      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 02:46:51   Additional Information  Earth MOID = 1.71163 au   Jupiter MOID = 1.64704 au   T_jup = 3.172  [ 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 12.90   n/a E2021B10   diameter diameter 14.820 km 0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.048   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   11717 (1998 HU94)          Discovered 1998-Apr-21 by LINEAR at Socorro Reference: 19990928/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1998 HU94 = 1982 RA2 = 1989 YK9 = 1992 GZ1 = 1992 HV5  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Aug-02 07:13 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin