+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   193798 (2001 PF8) Classification: Main-belt Asteroid          SPK-ID: 2193798 [ 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 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2200230909704988 3.6061e-08   a 2.234775966394748 9.9267e-09 au q 1.743073650641992 8.1813e-08 au i 6.80857352888669 5.5404e-06 deg node 46.85827300470336 3.6408e-05 deg peri 248.8947580361683 4.0035e-05 deg M 244.1126545998561 1.904e-05 deg tp 2459393.310356084149 (2021-Jun-27.81035608) 6.627e-05 TDB period 1220.251682373232 3.34 8.1304e-06 2.226e-08 d yr n .2950211052361316 1.9657e-09 deg/d Q 2.726478282147504 1.2111e-08 au   Orbit Determination Parameters    # obs. used (total)      283      data-arc span      7778 days (21.30 yr)      first obs. used      1998-10-17      last obs. used      2020-02-02      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .69049      source      ORB      producer      Otto Matic      solution date      2020-Feb-24 22:09:19   Additional Information  Earth MOID = .741532 au   Jupiter MOID = 2.50154 au   T_jup = 3.598  [ hide covariance matrix ] Orbital Elements at Epoch 2457234.5 (2015-Jul-31.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2205168709985329 3.6011e-08   q 1.741740624775682 8.1721e-08 au tp 2456952.680909137583 (2014-Oct-22.18090914) 5.6449e-05 TDB node 46.88457948797907 3.6419e-05 deg peri 248.8754371991965 4.0034e-05 deg i 6.808545387079686 5.5398e-06 deg   Orbit Determination Parameters    # obs. used (total)      283      data-arc span      7778 days (21.30 yr)      first obs. used      1998-10-17      last obs. used      2020-02-02      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .69049      source      ORB      producer      Otto Matic      solution date      2020-Feb-24 22:09:19   Additional Information  Jupiter MOID = 2.50154 au   T_jup = 3.598  Orbit Covariance (6×6)   e q tp node peri i e 1.296819489968773E-15 -2.929966265428502E-15 -2.809277148231052E-13 -9.495526710296042E-17 -7.554131222966587E-14 9.649428707069426E-16 q -2.929966265428502E-15 6.678379706392607E-15 8.453133133038482E-13 -3.723665872443702E-15 2.335002864595265E-13 -1.444456685553035E-15 tp -2.809277148231052E-13 8.453133133038482E-13 3.186526453584644E-9 -4.831642547784229E-11 9.536768869579099E-10 4.129228451199662E-12 node -9.495526710296042E-17 -3.723665872443702E-15 -4.831642547784229E-11 1.32637145525804E-9 -1.329811918103701E-9 -1.8597646908459E-11 peri -7.554131222966587E-14 2.335002864595265E-13 9.536768869579099E-10 -1.329811918103701E-9 1.602707365891219E-9 1.968991557088421E-11 i 9.649428707069426E-16 -1.444456685553035E-15 4.129228451199662E-12 -1.8597646908459E-11 1.968991557088421E-11 3.06888463711724E-11 [ 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 17.3   n/a MPO470086   193798 (2001 PF8)          Discovered 2001-Aug-11 by NEAT at Palomar Reference: 20081113/Numbers.arc Last Updated: 2008-11-17 [ show close-approach data ] Alternate Designations  2001 PF8 = 1998 UR47  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-26 15:33 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin