+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1930 Lucifer (1964 UA) Classification: Main-belt Asteroid          SPK-ID: 2001930 [ 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 39 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1416836272269857 1.3025e-08   a 2.89921904093224 1.0661e-08 au q 2.488447171087418 4.0556e-08 au i 14.05818709824914 1.5032e-06 deg node 318.5099341507201 3.3786e-06 deg peri 341.7040123799185 1.059e-05 deg M 213.9789037462137 1.3544e-05 deg tp 2459931.863147713717 (2022-Dec-18.36314771) 6.9901e-05 TDB period 1803.100647315617 4.94 9.9456e-06 2.723e-08 d yr n .1996560760687172 1.1013e-09 deg/d Q 3.309990910777063 1.2172e-08 au   Orbit Determination Parameters    # obs. used (total)      2955      data-arc span      24280 days (66.48 yr)      first obs. used      1954-09-23      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .42651      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 13:07:56   Additional Information  Earth MOID = 1.47519 au   Jupiter MOID = 1.97906 au   T_jup = 3.228  [ 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 11.13   n/a E2021B10   diameter diameter 34.437 km 0.168 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 13.056 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Warner, B.D. (2005) Minor Planet Bull. 32, 54-58.] [Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.] [Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] geometric albedo albedo 0.067   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   SMASSII spectral type spec_B Cgh   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 1930 Lucifer (1964 UA)          Discovered 1964-Oct-29 by Roemer, E. at Flagstaff (USNO) Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1964 UA = 1954 SQ = 1954 TC  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-19 21:53 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin