+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1219 Britta (1932 CJ) Classification: Main-belt Asteroid          SPK-ID: 2001219 [ 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 39 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1246559000400674 3.4178e-08   a 2.212998409957607 5.1964e-09 au q 1.937135101377103 7.6866e-08 au i 4.410873835108764 4.0443e-06 deg node 42.52239258696118 4.4054e-05 deg peri 24.08483314414762 4.6671e-05 deg M 10.19769539877496 1.5461e-05 deg tp 2458966.438041572966 (2020-Apr-26.93804157) 5.1613e-05 TDB period 1202.458453034923 3.29 4.2353e-06 1.16e-08 d yr n .2993866433317381 1.0545e-09 deg/d Q 2.488861718538111 5.8442e-09 au   Orbit Determination Parameters    # obs. used (total)      2832      data-arc span      42426 days (116.16 yr)      first obs. used      1904-09-20      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .42447      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:59:14   Additional Information  Earth MOID = .951632 au   Jupiter MOID = 2.77158 au   T_jup = 3.642  [ 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 11.7   n/a MPO435707   magnitude slope G 0.24   n/a PDS3 (MPC 17261) Fit diameter diameter 9.860 km 0.337 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 5.575 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Pilcher, F.; Binzel, R.P.; Tholen, D.J. (1985) Minor Planet Bull. 12, 10.] [Binzel, R.P.; Cochran, A.L.; Barker, E.S.; Tholen, D.J.; et al. (1987) Icarus 71, 148-158.] [Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Kryszczynska, A.; Colas, F.; Polinska, M.; Hirsch, R.; et al. (2012) Astron. Astrophys. 546, A72.] [Klinglesmith III, D.A.; Hanowell, J.; Risley, E.; Turk, J.; et al. (2014) Minor Planet Bull. 41, 139-143.] [Stephens, R.D. (2014) Minor Planet Bull. 41, 171-175.] [Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.] [Durech, J.; Hanus, J.; Broz, M.; Lehky, M.; et al. (2017) Icarus 304, 101-109.] geometric albedo albedo 0.346   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   B-V BV 0.913   0.019 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=13.07, mean=17.75, max.=26.33) deg. U-B UB 0.514   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=13.07, mean=17.75, max.=26.33) deg. 1219 Britta (1932 CJ)          Discovered 1932-Feb-06 by Wolf, M. at Heidelberg Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 2054-Dec-18 10:53 < 00:01 Thisb 0.0119697371458406 0.0119676550211922 0.0119718193268684 4.09287533964318 4.09287520046805 2471619.953467463 0.767341176459044 111.997031607312 24.4627131720051 -22.6711914848453 31817.4034270071 T 39 CATAB v2.0f-lin.ifort 2020-Dec-18 01:59:22 2020-Dec-18 01:59 2077-Dec-24 11:26 < 00:01 Thisb 0.0367402471632733 0.0367372739703378 0.0367432203925142 4.29205666954555 4.29205662630738 2480026.976152067 0.794274133088897 159.333305749401 26.4193022990639 21.865154882459 83788.2815983292 T 39 CATAB v2.0f-lin.ifort 2020-Dec-18 01:59:22 2020-Dec-18 01:59 Alternate Designations  1932 CJ = 1947 XG = 1975 FE = A904 SB = A915 BD  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-19 22:30 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin