+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1071 Brita (A924 ER) Classification: Main-belt Asteroid          SPK-ID: 2001071 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1100139075392076 3.103e-08   a 2.800279677786931 9.8332e-09 au q 2.492209968230958 8.9734e-08 au i 5.361156701965824 3.9508e-06 deg node 52.48949477055002 4.2601e-05 deg peri 29.04364450726777 4.7227e-05 deg M 268.3059036916177 2.0875e-05 deg tp 2459436.452742170931 (2021-Aug-09.95274217) 9.961e-05 TDB period 1711.593150487139 4.69 9.0154e-06 2.468e-08 d yr n .2103303579460691 1.1079e-09 deg/d Q 3.108349387342904 1.0915e-08 au   Orbit Determination Parameters    # obs. used (total)      2728      data-arc span      40427 days (110.68 yr)      first obs. used      1910-03-09      last obs. used      2020-11-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .42881      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:58:10   Additional Information  Earth MOID = 1.50951 au   Jupiter MOID = 2.11455 au   T_jup = 3.310  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 10.4   n/a MPO347523   diameter diameter 60.862 km 0.536 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 5.8169 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Angeli, C.A.; Guimaraes, T.A.; Lazzaro, D.; Duffard, R.; et al. (2001) Astron. J. 121, 2245-2252.] [Benishek, V.; Protitch-Benishek, V. (2009) Minor Planet Bull. 36, 35-37.] [Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] geometric albedo albedo 0.036   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   SMASSII spectral type spec_B Xk   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) 1071 Brita (A924 ER)          Discovered 1924-Mar-03 by Albitzkij, V. at Simeis Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  A924 ER = 1927 YB = 1947 BE = 1948 HB = 1948 JG = 1952 FJ = A910 EB = A917 SP  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-28 05:59 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin