+ 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 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 51 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04211821923948746 3.4018e-08   a 3.018457319348457 1.1505e-08 au q 2.891325272207103 1.001e-07 au i 3.508351389133693 3.5687e-06 deg node 353.661089029691 5.7782e-05 deg peri 314.4186526535058 7.375e-05 deg M 184.1759968714441 4.7365e-05 deg tp 2460332.016924819165 (2024-Jan-22.51692482) 0.00025306 TDB period 1915.472784956751 5.24 1.0951e-05 2.998e-08 d yr n .1879431557719199 1.0745e-09 deg/d Q 3.145589366489812 1.1989e-08 au   Orbit Determination Parameters    # obs. used (total)      3926      data-arc span      32214 days (88.20 yr)      first obs. used      1933-03-25      last obs. used      2021-06-05      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .41112      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 12:26:20   Additional Information  Earth MOID = 1.87753 au   Jupiter MOID = 1.97545 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 10.42   n/a E2021B10 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-Jul-28 05:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin