+ 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 45 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04226688436150878 3.4069e-08   a 3.017477862016223 1.1834e-08 au q 2.889938474158971 1.0046e-07 au i 3.508256755127857 3.8604e-06 deg node 353.6715794534258 5.8616e-05 deg peri 313.9063330186379 7.5757e-05 deg M 110.2626722877674 4.9075e-05 deg tp 2458414.104567878654 (2018-Oct-22.60456788) 0.00026067 TDB period 1914.540534740011 5.24 1.1263e-05 3.084e-08 d yr n .1880346712266852 1.1062e-09 deg/d Q 3.145017249873476 1.2335e-08 au   Orbit Determination Parameters    # obs. used (total)      3577      data-arc span      32007 days (87.63 yr)      first obs. used      1933-03-25      last obs. used      2020-11-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .42228      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:00:50   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 225.6 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Polakis, T. (2020) Minor Planet Bull. 47, 94-101.] 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 ] 2021-Jan-25 21:31 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin