+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1481 Tubingia (1938 DR) Classification: Main-belt Asteroid          SPK-ID: 2001481 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 42 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04226688311088585 3.423e-08   a 3.017477862920891 1.2163e-08 au q 2.889938478799128 1.0125e-07 au i 3.5082570342496 4.1052e-06 deg node 353.6715796897752 5.8723e-05 deg peri 313.9063285548906 7.7011e-05 deg M 110.262676142916 5.0585e-05 deg tp 2458414.104547112615 (2018-Oct-22.60454711) 0.00026891 TDB period 1914.540535601006 5.24 1.1576e-05 3.169e-08 d yr n .1880346711421234 1.1369e-09 deg/d Q 3.145017247042654 1.2677e-08 au   Orbit Determination Parameters    # obs. used (total)      3405      data-arc span      31911 days (87.37 yr)      first obs. used      1933-03-25      last obs. used      2020-08-06      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .43069      source      ORB      producer      Otto Matic      solution date      2020-Aug-24 22:35:25   Additional Information  Earth MOID = 1.87666 au   Jupiter MOID = 1.9776 au   T_jup = 3.243  [ 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 10.4   n/a MPO502167 IRAS observations used: 5 diameter diameter 33.770 km 0.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 24. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Brinsfield, J.W. (2009) Minor Planet Bull. 36, 64-66.] geometric albedo albedo 0.104   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   B-V BV 0.920   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=2.86 deg. U-B UB 0.370   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=2.86 deg. 1481 Tubingia (1938 DR)          Discovered 1938-Feb-07 by Reinmuth, K. at Heidelberg Independent discovery Feb. 22 by Y. Vaisala, Turku, was announced first Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1938 DR = 1930 UL = 1933 FT1 = 1933 FY1 = 1935 SY1 = 1938 CN = 1938 ES = 1939 LD = 1941 WF = 1950 OQ = 1955 LA = 1959 GY = A907 GQ = A912 FB  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-30 23:11 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin