+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   434025 (2001 SQ142) Classification: Main-belt Asteroid          SPK-ID: 2434025 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1157027392904815 5.5447e-08   a 2.415799274866391 1.8921e-08 au q 2.13628468118839 1.3456e-07 au i 4.255550793916953 5.4224e-06 deg node 310.1874081894036 0.00012148 deg peri 18.11387926229067 0.00012695 deg M 68.89857449574198 3.8047e-05 deg tp 2458938.019265628342 (2020-Mar-29.51926563) 0.00014497 TDB period 1371.480688321596 3.75 1.6113e-05 4.411e-08 d yr n .2624900248800181 3.0839e-09 deg/d Q 2.695313868544391 2.1111e-08 au   Orbit Determination Parameters    # obs. used (total)      161      data-arc span      7002 days (19.17 yr)      first obs. used      2001-09-16      last obs. used      2020-11-17      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .52909      source      ORB      producer      Otto Matic      solution date      2021-Apr-14 14:14:36   Additional Information  Earth MOID = 1.12326 au   Jupiter MOID = 2.59928 au   T_jup = 3.504  [ hide covariance matrix ] Orbital Elements at Epoch 2458081.5 (2017-Nov-24.0) TDB Reference: JPL 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1164870679009803 5.5562e-08   q 2.1342735330792 1.3508e-07 au tp 2457567.731648590267 (2016-Jun-28.23164859) 0.00014545 TDB node 310.2314664683676 0.0001216 deg peri 18.41373320744643 0.000127 deg i 4.253607070596394 5.4204e-06 deg   Orbit Determination Parameters    # obs. used (total)      161      data-arc span      7002 days (19.17 yr)      first obs. used      2001-09-16      last obs. used      2020-11-17      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .52909      source      ORB      producer      Otto Matic      solution date      2021-Apr-14 14:14:36   Additional Information  Jupiter MOID = 2.59928 au   T_jup = 3.504  Orbit Covariance (6×6)   e q tp node peri i e 3.087171579490046E-15 -7.447289746202583E-15 3.631527377851664E-12 6.813035299534494E-14 8.681680692899952E-13 -1.424870726235072E-15 q -7.447289746202583E-15 1.82461598434822E-14 -9.127330411849438E-12 -1.673202470156677E-13 -2.160484858911344E-12 3.708718131663473E-15 tp 3.631527377851664E-12 -9.127330411849438E-12 2.115459889083907E-8 2.26040253070503E-10 5.439880312723467E-9 -5.893927686947889E-12 node 6.813035299534494E-14 -1.673202470156677E-13 2.26040253070503E-10 1.478605399297644E-8 -1.468623782592438E-8 9.448192487238252E-11 peri 8.681680692899952E-13 -2.160484858911344E-12 5.439880312723467E-9 -1.468623782592438E-8 1.612965617472531E-8 -9.580759298448178E-11 i -1.424870726235072E-15 3.708718131663473E-15 -5.893927686947889E-12 9.448192487238252E-11 -9.580759298448178E-11 2.938099669762693E-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 17.2   n/a MPO477032   434025 (2001 SQ142)          Discovered 2001-Sep-16 by LINEAR at Socorro Reference: Last Updated: 2015-06-04 Alternate Designations  2001 SQ142 = 2007 EW162  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-15 15:36 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin