+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   2345 Fucik (1974 OS) Classification: Main-belt Asteroid          SPK-ID: 2002345 [ 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 38 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07635610934329996 1.3116e-08   a 3.016776718212181 1.2974e-08 au q 2.78642738525205 4.401e-08 au i 9.1545640466808 2.3008e-07 deg node 303.8580776818378 2.1676e-06 deg peri 135.4117391211545 1.451e-05 deg M 189.853499361873 1.6488e-05 deg tp 2460105.052335419235 (2023-Jun-09.55233542) 9.0047e-05 TDB period 1913.873277026741 5.24 1.2346e-05 3.38e-08 d yr n .1881002281192153 1.2134e-09 deg/d Q 3.247126051172313 1.3965e-08 au   Orbit Determination Parameters    # obs. used (total)      2694      data-arc span      31276 days (85.63 yr)      first obs. used      1935-01-29      last obs. used      2020-09-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .44033      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 13:40:33   Additional Information  Earth MOID = 1.81083 au   Jupiter MOID = 1.93155 au   T_jup = 3.224  [ 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 10.90   n/a E2021B10 IRAS observations used: 3 diameter diameter 25.155 km 0.684 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 17.12 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: [Brinsfield, J. (2008) Minor Planet Bull. 35, 119-122.] [Carbo, L.; Green, D.; Kragh, K.; Krotz, J.; et al. (2009) Minor Planet Bull. 36, 152-157.] [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] geometric albedo albedo 0.134   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   B-V BV 0.806   0.023 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=1.50 deg. U-B UB 0.431   0.032 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=1.50 deg. Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices 2345 Fucik (1974 OS)          Discovered 1974-Jul-25 by Smirnova, T. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1974 OS = 1935 BE = 1935 DK = 1938 UH1 = 1951 EC2 = 1969 QJ = 1972 EG = 1972 GP = 1972 GT = 1975 XH2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-May-11 14:56 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin