+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   213 Lilaea (A880 DA) Classification: Main-belt Asteroid          SPK-ID: 2000213 [ 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 108 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1447169672851539 3.6546e-08   a 2.753486735057932 8.2613e-09 au q 2.355010485300448 9.9902e-08 au i 6.801276402082604 4.0301e-06 deg node 122.028774208335 3.2895e-05 deg peri 162.2401660304547 3.5678e-05 deg M 141.7095796612391 1.545e-05 deg tp 2458343.569207963296 (2018-Aug-13.06920796) 7.0579e-05 TDB period 1668.871544877641 4.57 7.5107e-06 2.056e-08 d yr n .2157146253137143 9.7082e-10 deg/d Q 3.151962984815416 9.4569e-09 au   Orbit Determination Parameters    # obs. used (total)      3123      data-arc span      51368 days (140.64 yr)      first obs. used      1880-03-11      last obs. used      2020-10-31      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .45853      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 04:32:09   Additional Information  Earth MOID = 1.33966 au   Jupiter MOID = 2.01135 au   T_jup = 3.319  [ 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 8.9   n/a MPO502154 IRAS observations used: 5 diameter diameter 82.096 km 0.935 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 12.042 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Pilcher, F.; Franco, L.; Odden C.; Sydney, M.; et al. (2017) Minor Planet Bull. 44, 303.] geometric albedo albedo 0.092   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   B-V BV 0.650   0.032 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=10.61, mean=12.33, max.=13.63) deg. U-B UB 0.221   0.024 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=10.61, mean=12.33, max.=13.63) deg. Tholen spectral type spec_T F   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo SMASSII spectral type spec_B B   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) 213 Lilaea (A880 DA)          Discovered 1880-Feb-16 by Peters, C. H. F. at Clinton Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  A880 DA = 1950 TE3  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Nov-30 16:30 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin