+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   719 Albert (A911 TB) Classification: Amor [NEO]          SPK-ID: 2000719 [ 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 216 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .5467207543435646 2.178e-08   a 2.638377592896467 2.5303e-09 au q 1.195921805064952 5.8102e-08 au i 11.57040008928979 2.91e-06 deg node 183.8583371654591 1.6439e-05 deg peri 156.1912098962643 1.6686e-05 deg M 186.2430798158049 2.5622e-06 deg tp 2459956.015643604602 (2023-Jan-11.51564360) 1.2003e-05 TDB period 1565.322586342644 4.29 2.2518e-06 6.165e-09 d yr n .2299845432123581 3.3084e-10 deg/d Q 4.080833380727981 3.9136e-09 au   Orbit Determination Parameters    # obs. used (total)      1882      data-arc span      39939 days (109.35 yr)      first obs. used      1911-10-04      last obs. used      2021-02-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .39319      source      ORB      producer      Otto Matic      solution date      2021-Feb-08 05:24:26   Additional Information  Earth MOID = .201325 au   Jupiter MOID = 1.41853 au   T_jup = 3.140  [ 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 15.51   n/a E2021B10   rotation period rot_per 5.801 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R. (2001) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Pravec, P.; Wolf, M.; Sarounova, L. (2001) http://www.asu.cas.cz/~ppravec/neo.htm] [Krugly, Yu.N.; Belskaya, I.N.; Chiorny, V.G.; Shevchenko, V.G.; Gaflonyuk, N.M. (2002) Proc. ACM 2002, ESA SP 500, 903-906.] [Warner, B.D. (2018) Minor Planet Bull. 45, 366-379.] [Warner, B.D.; Stephens, R.D. (2019) Minor Planet Bull. 46, 27-40.] SMASSII spectral type spec_B S   n/a Binzel et al. (2004) Icarus 170, 259-294   719 Albert (A911 TB)          Discovered 1911-Oct-03 by Palisa, J. at Vienna Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  A911 TB = 2000 JW8  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-03 03:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin