+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   344056 (1992 HT3) Classification: Main-belt Asteroid          SPK-ID: 2344056 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09624925378531922 1.3867e-07   a 2.724796124453973 4.3772e-08 au q 2.462536530758149 3.8115e-07 au i 37.01356982937464 1.7341e-05 deg node 47.30094460243949 1.7706e-05 deg peri 186.4600365958294 6.9429e-05 deg M 53.35166702283762 6.3849e-05 deg tp 2458757.030289480845 (2019-Sep-30.53028948) 0.000293 TDB period 1642.855803350565 4.50 3.9587e-05 1.084e-07 d yr n .2191306134511554 5.2803e-09 deg/d Q 2.987055718149798 4.7986e-08 au   Orbit Determination Parameters    # obs. used (total)      254      data-arc span      9920 days (27.16 yr)      first obs. used      1992-04-30      last obs. used      2019-06-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57716      source      ORB      producer      Otto Matic      solution date      2019-Sep-24 06:29:12   Additional Information  Earth MOID = 1.45374 au   Jupiter MOID = 2.00702 au   T_jup = 3.060  [ 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 15.3   n/a MPO476588   diameter diameter 3.695 km 0.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.129   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   344056 (1992 HT3)          Discovered 1992-Apr-30 by San Pedro Martir at San Pedro Martir Reference: 20121128/Numbers.arc Last Updated: 2012-12-03 [ show close-approach data ] Alternate Designations  1992 HT3 = 2010 AK3  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Jul-05 21:31 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin