+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   8029 Miltthompson (1991 RR30) Classification: Main-belt Asteroid          SPK-ID: 2008029 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1280380752171383 8.5721e-08   a 3.150759827418976 4.2927e-08 AU q 2.747342603644767 2.6964e-07 AU i 6.546111228806396 1.0536e-05 deg node 24.62322975276911 6.5333e-05 deg peri 20.23013492962043 7.3318e-05 deg M 251.9921206952268 3.8023e-05 deg tp 2457013.378398286713 (2014-Dec-21.87839829) 0.00022104 JED period 2042.778960233379 5.59 4.1747e-05 1.143e-07 d yr n .1762305207798261 3.6015e-09 deg/d Q 3.554177051193184 4.8423e-08 AU   Orbit Determination Parameters    # obs. used (total)      823      data-arc span      13684 days (37.46 yr)      first obs. used      1975-10-14      last obs. used      2013-04-01      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .56528      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:29:13   Additional Information  Earth MOID = 1.75665 AU   T_jup = 3.185  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.0 mag n/a PDS3 (MPC 30859)   8029 Miltthompson           Discovered 1991 Sept. 15 by H. E. Holt at Palomar. NASA research pilot Milt Thompson (1926-1993) was the ninth pilot to fly the X-15 and made a total of 14 flights. He subsequently made the first flights of the M2-F1 and M2-F2 lifting bodies, which were the forerunners of the Space Shuttle. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20120207/MPCPages.arc Last Updated: 2012-02-09 [ show close-approach data ] Alternate Designations  1991 RR30 = 1964 VP2 = 1975 TP4 = 1975 VW6 = 1977 CS2 = 1977 EH = 1986 TF6 = 1994 CO15  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2013-May-23 06:07 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin