+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   117131 (2004 PW60) Classification: Outer Main-belt Asteroid          SPK-ID: 2117131 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2439673668728668 3.4351e-08   a 3.931959696163123 3.9411e-08 au q 2.972689842439968 1.5208e-07 au i 9.518158290355798 5.2589e-06 deg node 183.8566244525401 2.1609e-05 deg peri 259.9815273847055 2.4602e-05 deg M 315.7774117952318 1.2481e-05 deg tp 2459550.327276696218 (2021-Dec-01.82727670) 0.00010237 TDB period 2847.816573455545 7.80 4.2816e-05 1.172e-07 d yr n .1264126360368693 1.9006e-09 deg/d Q 4.891229549886277 4.9026e-08 au   Orbit Determination Parameters    # obs. used (total)      824      data-arc span      8470 days (23.19 yr)      first obs. used      1997-10-29      last obs. used      2021-01-06      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .502      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 09:16:03   Additional Information  Earth MOID = 2.00784 au   Jupiter MOID = .865944 au   T_jup = 2.986  [ hide covariance matrix ] Orbital Elements at Epoch 2457494.5 (2016-Apr-16.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2409304052897104 3.4377e-08   q 2.9932471133911 1.528e-07 au tp 2456700.346913506200 (2014-Feb-11.84691351) 8.1594e-05 TDB node 183.9431113869702 2.158e-05 deg peri 260.1478553828802 2.4649e-05 deg i 9.512822361861918 5.257e-06 deg   Orbit Determination Parameters    # obs. used (total)      824      data-arc span      8470 days (23.19 yr)      first obs. used      1997-10-29      last obs. used      2021-01-06      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .502      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 09:16:03   Additional Information  Jupiter MOID = .865944 au   T_jup = 2.986  Orbit Covariance (6×6)   e q tp node peri i e 1.181799454803768E-15 -5.17754670110227E-15 -6.003813741657819E-13 9.264461358940888E-16 -8.884250929550906E-14 -3.073605206305646E-15 q -5.17754670110227E-15 2.334760924698747E-14 3.073043115694868E-12 -1.457026199643864E-15 4.810225301006479E-13 1.429529363389252E-14 tp -6.003813741657819E-13 3.073043115694868E-12 6.657502353403887E-9 -1.503548079994034E-11 9.837446293217598E-10 2.63145004394054E-12 node 9.264461358940888E-16 -1.457026199643864E-15 -1.503548079994034E-11 4.657025002664166E-10 -4.608252620507912E-10 -6.044266194073273E-12 peri -8.884250929550906E-14 4.810225301006479E-13 9.837446293217598E-10 -4.608252620507912E-10 6.075654145214378E-10 6.384553772156391E-12 i -3.073605206305646E-15 1.429529363389252E-14 2.63145004394054E-12 -6.044266194073273E-12 6.384553772156391E-12 2.763560149705212E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.5   n/a MPO412802   117131 (2004 PW60)          Discovered 2004-Aug-09 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 Alternate Designations  2004 PW60 = 2000 GJ27  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-02 18:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin