+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   341 California (A892 SE) Classification: Main-belt Asteroid          SPK-ID: 2000341 [ 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 82 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1940294113126984 3.2974e-08   a 2.199438600300255 4.5922e-09 au q 1.772682823465571 7.2779e-08 au i 5.666423024787141 3.7323e-06 deg node 29.02988240869112 3.3718e-05 deg peri 293.7235762917701 3.4745e-05 deg M 78.85508560122211 8.5717e-06 deg tp 2458739.528310195156 (2019-Sep-13.02831020) 2.8219e-05 TDB period 1191.423579258504 3.26 3.7314e-06 1.022e-08 d yr n .3021595394511582 9.4632e-10 deg/d Q 2.626194377134939 5.4833e-09 au   Orbit Determination Parameters    # obs. used (total)      3064      data-arc span      46797 days (128.12 yr)      first obs. used      1892-09-25      last obs. used      2020-11-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .41525      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:52:52   Additional Information  Earth MOID = .770069 au   Jupiter MOID = 2.70974 au   T_jup = 3.635  [ 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 11.3   n/a MPO502156 IRAS observations used: 21 diameter diameter 15.830 km 0.820 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 318. h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Skiff, B.A. (2014) Posting on CALL web site. http://www.minorplanet.info/call.html] [Pilcher, F.; Franco, L.; Pravec, P. (2017) Minor Planet Bull. 44, 87-90.] [Polakis, T.; Skiff, B.A. (2017) Minor Planet Bull. 44, 299-302.] geometric albedo albedo 0.425   0.037 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=9.18 deg. Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 1 color indices; used ground-based radiometric albedo 341 California (A892 SE)          Discovered 1892-Sep-25 by Wolf, M. at Heidelberg Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  A892 SE = 1979 FY2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-24 22:52 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin