+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 114 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1445830111823693 2.3349e-08   a 2.753915578881268 7.9393e-09 au q 2.355746171944577 6.2615e-08 au i 6.801350056680321 3.0992e-07 deg node 122.0281089234431 3.7636e-06 deg peri 162.2992555791573 6.3881e-06 deg M 184.774967316253 9.2438e-06 deg tp 2460012.989973040681 (2023-Mar-09.48997304) 4.5058e-05 TDB period 1669.261439503076 4.57 7.2185e-06 1.976e-08 d yr n .215664240172689 9.3262e-10 deg/d Q 3.15208498581796 9.0872e-09 au   Orbit Determination Parameters    # obs. used (total)      3469      data-arc span      51502 days (141.00 yr)      first obs. used      1880-03-11      last obs. used      2021-03-14      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .44055      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 10:29:49   Additional Information  Earth MOID = 1.33847 au   Jupiter MOID = 2.01058 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 8.97   n/a E2021B10 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. 2020-October); 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 ] 2021-Apr-22 01:59 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin