+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   78341 (2002 PA90) Classification: Main-belt Asteroid          SPK-ID: 2078341 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08965896915876637 4.7102e-08   a 2.637896232761539 1.6515e-08 au q 2.401385175784346 1.2193e-07 au i 13.26720131760036 4.7533e-06 deg node 273.5422060355569 2.3066e-05 deg peri 314.5275284529511 3.8627e-05 deg M 154.3711912203303 3.3228e-05 deg tp 2458329.459483552466 (2018-Jul-29.95948355) 0.00014283 TDB period 1564.894226775245 4.28 1.4696e-05 4.024e-08 d yr n .2300474970387275 2.1604e-09 deg/d Q 2.874407289738731 1.7996e-08 au   Orbit Determination Parameters    # obs. used (total)      785      data-arc span      8094 days (22.16 yr)      first obs. used      1998-09-19      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51816      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 22:06:25   Additional Information  Earth MOID = 1.40706 au   Jupiter MOID = 2.22677 au   T_jup = 3.353  [ hide covariance matrix ] Orbital Elements at Epoch 2457379.5 (2015-Dec-23.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08922312914229821 4.7094e-08   q 2.40345605625882 1.219e-07 au tp 2456766.604636412656 (2014-Apr-19.10463641) 0.0001409 TDB node 273.5806622118052 2.3091e-05 deg peri 315.1701740808523 3.8774e-05 deg i 13.25736937939616 4.7502e-06 deg   Orbit Determination Parameters    # obs. used (total)      785      data-arc span      8094 days (22.16 yr)      first obs. used      1998-09-19      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51816      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 22:06:25   Additional Information  Jupiter MOID = 2.22677 au   T_jup = 3.353  Orbit Covariance (6×6)   e q tp node peri i e 2.217874954954989E-15 -5.698778574541894E-15 5.040136095281278E-14 -1.544911196252979E-15 -6.70237686128716E-14 2.467168076189989E-15 q -5.698778574541894E-15 1.486016814035471E-14 1.178970261129924E-13 6.315714215972955E-15 2.427504852629314E-13 -6.31085704634441E-15 tp 5.040136095281278E-14 1.178970261129924E-13 1.985263678560716E-8 5.212258211444345E-11 4.415600506042689E-9 -1.691625876719935E-11 node -1.544911196252979E-15 6.315714215972955E-15 5.212258211444345E-11 5.332156519559633E-10 -5.069221138590616E-10 1.776857162561637E-11 peri -6.70237686128716E-14 2.427504852629314E-13 4.415600506042689E-9 -5.069221138590616E-10 1.503394029849842E-9 -2.12274774388841E-11 i 2.467168076189989E-15 -6.31085704634441E-15 -1.691625876719935E-11 1.776857162561637E-11 -2.12274774388841E-11 2.256428672491821E-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 14.8   n/a MPO493422   78341 (2002 PA90)          Discovered 2002-Aug-11 by LINEAR at Socorro Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  2002 PA90 = 2001 ML13  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-19 09:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin