+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   16695 Terryhandley (1995 AM) Classification: Mars-crossing Asteroid          SPK-ID: 2016695 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3588038354815302 2.8162e-08   a 2.15793922425804 4.5293e-09 au q 1.383662353858218 6.1598e-08 au i 4.784419355496685 3.4964e-06 deg node 108.6817121249276 4.2367e-05 deg peri 257.8190642903555 4.2949e-05 deg M 129.347890035453 4.5926e-06 deg tp 2458784.480115998261 (2019-Oct-27.98011600) 1.4631e-05 TDB period 1157.863171943324 3.17 3.6454e-06 9.981e-09 d yr n .3109175667067694 9.7889e-10 deg/d Q 2.932216094657863 6.1545e-09 au   Orbit Determination Parameters    # obs. used (total)      753      data-arc span      9594 days (26.27 yr)      first obs. used      1994-12-08      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .49611      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 01:39:07   Additional Information  Earth MOID = .392359 au   Jupiter MOID = 2.54048 au   T_jup = 3.609  [ 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 17.0   n/a MPO526115   16695 Terryhandley           Discovered 1995 Jan. 7 by Spacewatch at Kitt Peak. Terry R. Handley (1952-2015) was an amateur astronomer with Aspergers Syndrome. In the late 1980s he was recognized as the only amateur astronomer in North America measuring positions of comets and minor planets. He ran a sky survey that resulted in the discovery of 7 minor planets. Name suggested by G. W. Kronk. 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 2016-06-20 Last Updated: 2016-06-21 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-15 06:27 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin