+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   2454 Olaus Magnus (1941 SS) Classification: Main-belt Asteroid          SPK-ID: 2002454 [ 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 36 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2027494004121109 1.373e-08   a 2.252089948490082 5.4541e-09 au q 1.795480061759576 3.1244e-08 au i 4.728207521868391 7.4136e-07 deg node 247.5968384048012 8.5054e-06 deg peri 76.32500136228388 8.4877e-06 deg M 186.9732060484872 3.8631e-06 deg tp 2459793.818493323417 (2022-Aug-02.31849332) 1.4404e-05 TDB period 1234.460008871722 3.38 4.4845e-06 1.228e-08 d yr n .2916254859718256 1.0594e-09 deg/d Q 2.708699835220588 6.56e-09 au   Orbit Determination Parameters    # obs. used (total)      2566      data-arc span      19201 days (52.57 yr)      first obs. used      1968-08-27      last obs. used      2021-03-23      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .44843      source      ORB      producer      Otto Matic      solution date      2021-May-03 20:15:34   Additional Information  Earth MOID = .788589 au   Jupiter MOID = 2.62877 au   T_jup = 3.595  [ 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 13.50   n/a MPCxxxxx   diameter diameter 4.921 km 0.326 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 3.804 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Vargas, A. (2013) Minor Planet Bull. 40, 61.] geometric albedo albedo 0.349   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   2454 Olaus Magnus (1941 SS)          Discovered 1941-Sep-21 by Vaisala, Y. at Turku Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1941 SS = 1968 QQ = 1975 XV  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-May-11 14:04 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin