+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101142 (1998 RQ69) Classification: Main-belt Asteroid          SPK-ID: 2101142 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ 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 .1872271985931031 5.1381e-08   a 2.63024949174594 1.2243e-08 au q 2.137795247805414 1.3789e-07 au i 2.76112893852477 5.3259e-06 deg node 24.2113709021088 9.2451e-05 deg peri 334.4332196345061 9.3328e-05 deg M 32.54303280977546 1.1771e-05 deg tp 2458859.652426903870 (2020-Jan-11.15242690) 5.0656e-05 TDB period 1558.094680695397 4.27 1.0878e-05 2.978e-08 d yr n .2310514274006298 1.6132e-09 deg/d Q 3.122703735686465 1.4535e-08 au   Orbit Determination Parameters    # obs. used (total)      467      data-arc span      8079 days (22.12 yr)      first obs. used      1998-09-14      last obs. used      2020-10-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54996      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 20:02:11   Additional Information  Earth MOID = 1.13461 au   Jupiter MOID = 2.32605 au   T_jup = 3.373  [ hide covariance matrix ] Orbital Elements at Epoch 2457104.5 (2015-Mar-23.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1898371751850713 5.1604e-08   q 2.130342749257662 1.389e-07 au tp 2457300.806149718834 (2015-Oct-05.30614972) 4.72e-05 TDB node 24.28184321937558 9.2176e-05 deg peri 334.2579730386117 9.302e-05 deg i 2.767771988570388 5.3342e-06 deg   Orbit Determination Parameters    # obs. used (total)      467      data-arc span      8079 days (22.12 yr)      first obs. used      1998-09-14      last obs. used      2020-10-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54996      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 20:02:11   Additional Information  Jupiter MOID = 2.32605 au   T_jup = 3.373  Orbit Covariance (6×6)   e q tp node peri i e 2.662945139730321E-15 -7.150378597968293E-15 -7.490900277287382E-14 2.236509461100401E-15 2.724333132517455E-14 -2.40337586684282E-15 q -7.150378597968293E-15 1.929270232223356E-14 2.321281314585571E-13 -7.930185564805042E-15 -6.939173222677359E-14 6.607007990275711E-15 tp -7.490900277287382E-14 2.321281314585571E-13 2.22785431172252E-9 6.798850072658242E-13 6.053158285369765E-10 8.869953180925059E-13 node 2.236509461100401E-15 -7.930185564805042E-15 6.798850072658242E-13 8.496429507064905E-9 -8.485543844941761E-9 -1.121338283501463E-10 peri 2.724333132517455E-14 -6.939173222677359E-14 6.053158285369765E-10 -8.485543844941761E-9 8.652759084393319E-9 1.122076720076623E-10 i -2.40337586684282E-15 6.607007990275711E-15 8.869953180925059E-13 -1.121338283501463E-10 1.122076720076623E-10 2.845351476192974E-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 16.2   n/a MPO439692   diameter diameter 3.693 km 1.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   geometric albedo albedo 0.039   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   101142 (1998 RQ69)          Discovered 1998-Sep-14 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 Alternate Designations  1998 RQ69 = 2002 PV51  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-21 19:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin