+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   290 Bruna (A890 FA) Classification: Main-belt Asteroid          SPK-ID: 2000290 [ 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 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .257171174429621 3.6504e-08   a 2.33833780527733 7.4266e-09 au q 1.736984725680977 8.5331e-08 au i 22.32253516121961 6.4337e-06 deg node 10.37001973748883 1.0735e-05 deg peri 105.3483565737755 1.6598e-05 deg M 197.5084851612515 1.3401e-05 deg tp 2459590.004996412896 (2022-Jan-10.50499641) 4.9991e-05 TDB period 1306.048496866096 3.58 6.222e-06 1.703e-08 d yr n .2756406066572804 1.3132e-09 deg/d Q 2.939690884873684 9.3365e-09 au   Orbit Determination Parameters    # obs. used (total)      2612      data-arc span      38570 days (105.60 yr)      first obs. used      1915-04-12      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .29725      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:52:27   Additional Information  Earth MOID = .873866 au   Jupiter MOID = 2.38979 au   T_jup = 3.424  [ 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 12.0   n/a MPO435697   diameter diameter 9.822 km 0.130 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 13.807 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Pilcher, F. (2009) Minor Planet Bull. 36, 25-27.] [Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.] [Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] [Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] geometric albedo albedo 0.314   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   290 Bruna (A890 FA)          Discovered 1890-Mar-20 by Palisa, J. at Vienna Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-20 04:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin