+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   90 Antiope (A866 TA) Classification: Main-belt Asteroid          SPK-ID: 2000090 [ 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 105 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1664995140368522 3.2766e-08   a 3.148725610309563 8.5967e-09 au q 2.624464326357629 1.0489e-07 au i 2.206751712189727 3.6293e-06 deg node 69.96053962355261 9.7001e-05 deg peri 244.9419895095533 9.7529e-05 deg M 215.6355439832691 1.0831e-05 deg tp 2459818.886448943928 (2022-Aug-27.38644894) 6.1655e-05 TDB period 2040.800968249897 5.59 8.3578e-06 2.288e-08 d yr n .1764013275183422 7.2242e-10 deg/d Q 3.672986894261495 1.0028e-08 au   Orbit Determination Parameters    # obs. used (total)      4353      data-arc span      56294 days (154.12 yr)      first obs. used      1866-10-01      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .40982      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 19:31:26   Additional Information  Earth MOID = 1.61168 au   Jupiter MOID = 1.62088 au   T_jup = 3.185  [ hide covariance matrix ] Orbital Elements at Epoch 2455650.5 (2011-Mar-30.0) TDB Reference: JPL 105 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1566030450834474 3.1751e-08   q 2.660236847502596 9.9672e-08 au tp 2455718.562910483941 (2011-Jun-06.06291048) 6.9205e-05 TDB node 70.21146575591929 9.5929e-05 deg peri 243.053069792854 9.6617e-05 deg i 2.219588220928656 3.6387e-06 deg   Orbit Determination Parameters    # obs. used (total)      4353      data-arc span      56294 days (154.12 yr)      first obs. used      1866-10-01      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .40982      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 19:31:26   Additional Information  Jupiter MOID = 1.62088 au   T_jup = 3.185  Orbit Covariance (6×6)   e q tp node peri i e 1.008129078203188E-15 -3.157017805216016E-15 1.592350977404764E-13 -9.476701038054797E-15 2.865032823702958E-14 2.845524517111605E-16 q -3.157017805216016E-15 9.934587616705711E-15 -5.428355047894358E-13 3.475665435832589E-14 -1.047488483549815E-13 -9.65702860157213E-16 tp 1.592350977404764E-13 -5.428355047894358E-13 4.789270727972793E-9 -2.963236493940272E-12 8.198449765198398E-10 -4.466628862214499E-13 node -9.476701038054797E-15 3.475665435832589E-14 -2.963236493940272E-12 9.202348322841046E-9 -9.195519658313645E-9 7.194458816310275E-12 peri 2.865032823702958E-14 -1.047488483549815E-13 8.198449765198398E-10 -9.195519658313645E-9 9.334790389606735E-9 -7.255799075440115E-12 i 2.845524517111605E-16 -9.65702860157213E-16 -4.466628862214499E-13 7.194458816310275E-12 -7.255799075440115E-12 1.324011236395482E-11 [ 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 8.1   n/a MPO502153 IRAS observations used: 3 diameter diameter 115.974 km 1.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 16.509 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Hansen, A.T.; Arentoft, T.; Lang, K. (1997) Minor Planet Bull. 24, 17.] [Michalowski, T.; Colas, F.; Kwiatkowski, T.; Kryszczynska, A.; et al. (2001) Astron. Astrophys. 378, L14-L16.] [Michalowski, T.; Colas, F.; Kwiatkowski, T.; Kryszczynska, A.; et al. (2002) Astron. Astrophys. 396, 293-299; (2001) IAUC 7757.] [Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Descamps, P.; et al. (2005) Abstr. IAU Symp. 229, p. 87; also http://portail.imcce.fr/page.php?nav=en/observateur/campagnes_obs/a ntiope] [Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Descamps, P.; Marchis, F.; Michalowski, T.; Vachier, F.; et al. (2007) Icarus 187, 482-499.] [Descamps, P.; Marchis, F.; Micalowski, T.; Berthier, J.; et al. (2009) Icarus 203, 102-111.] [Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Bartczak, P.; Michalowski, T.; Santana-Ros, T.; Dudzinski, G. (2014) Mon. Not. Royal Ast. Soc. 443, 1802-1809.] geometric albedo albedo 0.058   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   B-V BV 0.688   0.016 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=8.58, mean=12.61, max.=16.29) deg. U-B UB 0.317   0.047 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=8.58, mean=12.61, max.=16.29) deg. Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo SMASSII spectral type spec_B C   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) 90 Antiope (A866 TA)          Discovered 1866-Oct-01 by Luther, R. at Dusseldorf 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 1907-Dec-09 13:00 00:01 Jupiter 1.64437123265732 1.64437081564355 1.64437164967082 1.51069316165988 1.11892155394352 2417919.041747069 1.22265512311049 92.4467906712673 68.3649715170288 -64.8019475790803 2495739.26298764 T 105 CATAB v2.0f-lin.ifort 2020-Dec-17 19:31:39 2020-Dec-17 19:31 1918-May-21 10:09 00:01 Jupiter 1.64832131302868 1.64832086145437 1.64832176460262 1.86453308274157 1.56484633436971 2421734.923130236 1.10802327960867 52.1209287912484 33.3785166994084 88.874695537104 1906445.76509745 T 105 CATAB v2.0f-lin.ifort 2020-Dec-17 19:31:39 2020-Dec-17 19:31 1928-Oct-23 14:10 < 00:01 Jupiter 1.94698280276776 1.94698223518096 1.94698337035478 3.59802410323543 3.47500937212594 2425543.090439522 0.94138800936026 52.8671895377096 15.6833583440323 -73.0905172559478 3240301.95472672 T 105 CATAB v2.0f-lin.ifort 2020-Dec-17 19:31:39 2020-Dec-17 19:31 1992-May-16 08:02 < 00:01 Jupiter 1.91267724231892 1.9126768551053 1.91267762953243 2.31227243177383 2.11208681191322 2448758.835066902 0.312909022779963 43.9042048116704 5.72946513392917 -87.6153051821167 3208936.92945949 T 105 CATAB v2.0f-lin.ifort 2020-Dec-17 19:31:39 2020-Dec-17 19:31 2002-Nov-02 12:00 < 00:01 Jupiter 1.63550247028035 1.63550215148369 1.63550278907663 1.48541106527895 1.08196635135207 2452581.000023269 0.209439018415527 94.9537625939999 60.5086663766983 -39.807157271803 2787101.13246814 T 105 CATAB v2.0f-lin.ifort 2020-Dec-17 19:31:39 2020-Dec-17 19:31 2013-Apr-14 22:25 < 00:01 Jupiter 1.67158061069112 1.67158027517461 1.67158094620745 1.96163815194366 1.68362264471215 2456397.433786009 0.189709032399677 47.7721688250801 13.987813548897 -86.2237354097884 2894967.53876014 T 105 CATAB v2.0f-lin.ifort 2020-Dec-17 19:31:39 2020-Dec-17 19:31 2023-Sep-21 19:11 < 00:01 Jupiter 1.97680455647929 1.97680418649269 1.97680492646589 3.75984318250649 3.64409926351412 2460209.299421598 0.243110440490219 34.2993033973714 14.3924311368284 -82.7118685705432 4197296.02810317 T 105 CATAB v2.0f-lin.ifort 2020-Dec-17 19:31:39 2020-Dec-17 19:31 2087-Apr-13 06:43 < 00:01 Jupiter 1.88883544151451 1.88883491959465 1.88883596343416 2.21310195793421 2.00023686820281 2483423.779910796 0.85199575198938 51.5684417921023 4.72055203241454 -87.3299905093624 2449132.22133642 T 105 CATAB v2.0f-lin.ifort 2020-Dec-17 19:31:39 2020-Dec-17 19:31 2097-Oct-01 02:44 00:01 Jupiter 1.63465523020797 1.63465486101019 1.63465559940529 1.48122355705306 1.07596074612547 2487247.614124161 1.00519162358359 95.8441928119979 75.0044907649439 -46.5690285178673 2502304.55644907 T 105 CATAB v2.0f-lin.ifort 2020-Dec-17 19:31:39 2020-Dec-17 19:31 2108-Mar-12 05:24 00:01 Jupiter 1.69746247775213 1.6974620106343 1.69746294486967 2.06665433887102 1.80916373607542 2491061.725057415 1.18501900213955 45.2633554940692 13.3423585269909 -88.6213277811185 2080622.93454227 T 105 CATAB v2.0f-lin.ifort 2020-Dec-17 19:31:39 2020-Dec-17 19:31 2182-Mar-08 14:00 00:02 Jupiter 1.86325800991936 1.86325708687612 1.8632589329625 2.11134796871823 1.8837743734819 2518086.083263787 1.92958523436731 76.9889346712285 5.67658881259923 -88.1250177076669 1880638.04262625 T 105 CATAB v2.0f-lin.ifort 2020-Dec-17 19:31:39 2020-Dec-17 19:31 2192-Aug-27 13:55 00:02 Jupiter 1.63649684588642 1.63649642033769 1.63649727143505 1.4882054139067 1.08608926011189 2521911.079629081 2.0889040880793 120.899916982641 79.170558759509 -79.8813983764239 2485642.88140912 T 105 CATAB v2.0f-lin.ifort 2020-Dec-17 19:31:39 2020-Dec-17 19:31 Alternate Designations  A866 TA = 1952 BK2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-22 14:01 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin