+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120822 (1998 HK96) Classification: Main-belt Asteroid          SPK-ID: 2120822 [ 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 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2406026147750296 8.0628e-08   a 2.59596890296296 1.4303e-08 au q 1.971371997035406 2.0532e-07 au i 5.549630235399229 5.3135e-06 deg node 176.5487655858299 8.1101e-05 deg peri 66.09387708570966 8.2672e-05 deg M 86.28648086501165 1.0938e-05 deg tp 2458634.325656427897 (2019-May-30.82565643) 4.7765e-05 TDB period 1527.733688573804 4.18 1.2626e-05 3.457e-08 d yr n .2356431639182307 1.9475e-09 deg/d Q 3.220565808890512 1.7744e-08 au   Orbit Determination Parameters    # obs. used (total)      357      data-arc span      7795 days (21.34 yr)      first obs. used      1998-04-21      last obs. used      2019-08-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58225      source      ORB      producer      Otto Matic      solution date      2019-Nov-07 14:14:59   Additional Information  Earth MOID = .966782 au   Jupiter MOID = 1.81971 au   T_jup = 3.369  [ 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 16.3   n/a MPO493690   diameter diameter 3.994 km 0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.037   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   120822 (1998 HK96)          Discovered 1998-Apr-21 by LINEAR at Socorro Reference: 20060314/Numbers.arc Last Updated: 2006-03-23 [ show close-approach data ] Alternate Designations  1998 HK96 = 1999 TZ82  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-24 04:41 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin