+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   180972 (2005 MB42) Classification: Main-belt Asteroid          SPK-ID: 2180972 [ 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 .1809622524416315 4.3679e-08   a 2.435971156052347 1.6655e-08 au q 1.99515232877027 1.1185e-07 au i 3.865595649133613 6.9971e-06 deg node 213.4986317231905 6.5769e-05 deg peri 72.4610151525124 6.9118e-05 deg M 34.19668356478034 2.3984e-05 deg tp 2459068.586838749405 (2020-Aug-07.08683875) 9.1676e-05 TDB period 1388.69425627939 3.80 1.4242e-05 3.899e-08 d yr n .2592363282069858 2.6587e-09 deg/d Q 2.876789983334425 1.9669e-08 au   Orbit Determination Parameters    # obs. used (total)      270      data-arc span      7953 days (21.77 yr)      first obs. used      1997-05-04      last obs. used      2019-02-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .58308      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 21:28:42   Additional Information  Earth MOID = .981071 au   Jupiter MOID = 2.28543 au   T_jup = 3.479  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.9   n/a MPO433179   180972 (2005 MB42)          Discovered 2005-Jun-28 by NEAT at Palomar Reference: 20080321/Numbers.arc Last Updated: 2008-03-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-15 15:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin