+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   22422 Kenmount Hill (1995 YO5) Classification: Main-belt Asteroid          SPK-ID: 2022422 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 28 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1494356074603272 3.5888e-08   a 2.521078911661494 1.032e-08 au q 2.144339953041939 9.227e-08 au i 6.361372170746332 3.8605e-06 deg node 78.14598323308292 3.0365e-05 deg peri 179.9104229660504 3.2433e-05 deg M 247.2854340701374 1.256e-05 deg tp 2459658.278749462170 (2022-Mar-19.77874946) 5.1865e-05 TDB period 1462.103397611711 4.00 8.9781e-06 2.458e-08 d yr n .2462206165364542 1.5119e-09 deg/d Q 2.89781787028105 1.1863e-08 au   Orbit Determination Parameters    # obs. used (total)      1076      data-arc span      9217 days (25.23 yr)      first obs. used      1995-12-16      last obs. used      2021-03-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51674      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 04:06:06   Additional Information  Earth MOID = 1.12753 au   Jupiter MOID = 2.15505 au   T_jup = 3.432  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.31   n/a E2021B10   diameter diameter 4.120 km 0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.090   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   22422 Kenmount Hill           Discovered 1995 Dec. 16 by Spacewatch at Kitt Peak. Kenmount Hill (47 \circ 31 ' N, 52 \circ 47 ' W) is the location near St. John's, Newfoundland, where John Winthrop of Harvard College observed the transit of Venus in 1761. Name suggested by R. and P. Jedicke. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2018-03-31 Last Updated: 2018-04-05 Alternate Designations  1995 YO5 = 1999 XU262  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-23 02:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin