+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   16255 Hampton (2000 HX63) Classification: Main-belt Asteroid          SPK-ID: 2016255 [ 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 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1220085875834781 5.3419e-08   a 2.948307988119 1.456e-08 au q 2.588589094727515 1.5969e-07 au i .8586913375464653 3.4353e-06 deg node 278.79459777633 0.00034545 deg peri 105.4620141294834 0.00034583 deg M 174.7422870484181 1.69e-05 deg tp 2458102.961234357464 (2017-Dec-15.46123436) 8.394e-05 TDB period 1849.088512512048 5.06 1.3698e-05 3.75e-08 d yr n .1946905178221718 1.4422e-09 deg/d Q 3.308026881510486 1.6337e-08 au   Orbit Determination Parameters    # obs. used (total)      1367      data-arc span      15527 days (42.51 yr)      first obs. used      1977-12-07      last obs. used      2020-06-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50566      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 02:28:21   Additional Information  Earth MOID = 1.59238 au   Jupiter MOID = 2.14432 au   T_jup = 3.259  [ 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 14.3   n/a MPO435850   diameter diameter 4.628 km 0.813 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.157   0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   16255 Hampton           Discovered 2000 Apr. 26 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station. Donald L. Hampton (b. 1963), an atmospheric physicist at Ball Aerospace and Technology, has served as the system engineer for all the scientific instruments on the Deep Impact mission. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20050721/MPCPages.arc Last Updated: 2005-07-21 [ show close-approach data ] Alternate Designations  2000 HX63 = 1977 XR1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-22 23:53 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin