+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3281 Maupertuis (1938 DZ) Classification: Main-belt Asteroid          SPK-ID: 2003281 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 42 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09714261334782105 1.7687e-08   a 2.350191406773402 7.103e-09 au q 2.121887671651842 4.244e-08 au i 5.990197149423225 7.8916e-07 deg node 348.4342841476995 4.5222e-06 deg peri 240.5931586595277 6.8916e-06 deg M 294.5323779405868 7.7968e-06 deg tp 2459439.819090486414 (2021-Aug-13.31909049) 2.9065e-05 TDB period 1315.992086850531 3.60 5.966e-06 1.633e-08 d yr n .2735578759151675 1.2402e-09 deg/d Q 2.578495141894962 7.793e-09 au   Orbit Determination Parameters    # obs. used (total)      2621      data-arc span      32867 days (89.98 yr)      first obs. used      1931-03-21      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .46543      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 14:55:43   Additional Information  Earth MOID = 1.11878 au   Jupiter MOID = 2.42151 au   T_jup = 3.544  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.92   n/a E2021B10   diameter diameter 5.482 km 0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 6.7295 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.] [Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.] geometric albedo albedo 0.489   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   3281 Maupertuis (1938 DZ)          Discovered 1938-Feb-24 by Vaisala, Y. at Turku Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1938 DZ = 1961 TP = 1970 AP = 1979 TV  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-19 04:17 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin