+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   570 Kythera (A905 OF) Classification: Outer Main-belt Asteroid          SPK-ID: 2000570 [ 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 48 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1183471158578885 3.3101e-08   a 3.418000746449981 1.2199e-08 au q 3.013490216107516 1.1441e-07 au i 1.817014537260952 3.7783e-06 deg node 223.3414738475889 0.00011313 deg peri 161.3979361467016 0.00011429 deg M 337.4091392818524 1.516e-05 deg tp 2459145.339472320166 (2020-Oct-22.83947232) 9.706e-05 TDB period 2308.110819052295 6.32 1.2357e-05 3.383e-08 d yr n .1559717137619134 8.3502e-10 deg/d Q 3.822511276792447 1.3643e-08 au   Orbit Determination Parameters    # obs. used (total)      3756      data-arc span      42112 days (115.30 yr)      first obs. used      1905-07-31      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .44792      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:54:33   Additional Information  Earth MOID = 2.0174 au   Jupiter MOID = 1.62993 au   T_jup = 3.131  [ 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 8.7   n/a MPO492756 IRAS observations used: 6 diameter diameter 87.486 km 0.784 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 8.120 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Aznar, A.M.; Carreno Garcerain, A.; Arce Masego, E.; Brines Rodriques, P.; et al. (2016) Minor Planet Bull. 43, 257-263.] geometric albedo albedo 0.069   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   B-V BV 0.775   0.027 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=.23, mean=8.39, max.=15.80) deg. U-B UB 0.374   0.071 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=.23, mean=8.39, max.=15.80) deg. Tholen spectral type spec_T ST   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices SMASSII spectral type spec_B T   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) 570 Kythera (A905 OF)          Discovered 1905-Jul-30 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 1908-May-11 17:19 00:02 Jupiter 1.70675811281849 1.70675774903289 1.70675847660409 2.38736974333589 2.1695582415088 2418073.221583766 1.75339606729406 62.4425871257222 9.36948925584053 -88.1848571440512 3395379.64232284 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 1922-Jan-31 04:03 00:02 Jupiter 1.62618918622715 1.6261888439216 1.62618952853252 1.8533020469065 1.54693295581589 2423085.668587542 1.49561252661884 74.187138278597 20.1337602222679 88.377848525263 2993265.78300121 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 1935-Oct-18 03:22 00:01 Jupiter 1.65112788961344 1.65112750047148 1.65112827875531 2.21086398901888 1.96517860679605 2428093.640447511 1.22252902556969 51.8845125055432 9.44186244076237 88.5605633332886 2857069.66960711 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 1949-Jun-29 19:03 < 00:01 Jupiter 1.75433729434206 1.75433693784055 1.75433765084357 3.04745211926087 2.88467189856528 2433097.293775112 0.975929364401034 38.7739368829767 11.5442424173887 -86.0290906560506 3723913.71271408 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 1963-Feb-27 19:07 < 00:01 Jupiter 1.83863283304479 1.83863250180451 1.83863316428507 3.88555611607834 3.76512749965518 2438088.296841335 0.758615757667465 44.1504720071291 13.4674153435414 -85.0307042385097 4950084.88279031 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 1976-Oct-12 13:48 < 00:01 Jupiter 1.84259667770922 1.84259632656152 1.84259702885691 3.90142431499547 3.78176314709899 2443064.074667678 0.582021764902471 35.9413686098976 14.3506615761624 -84.9903673415303 4481341.78423178 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 1990-Jun-04 07:30 < 00:01 Jupiter 1.77261965251055 1.77261928592652 1.77262001909459 3.00939711312552 2.8461900534992 2448046.812616774 0.421144115189325 38.4677037488986 11.8517893379819 86.2770625538282 3707780.60909754 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 2004-Feb-16 06:52 < 00:01 Jupiter 1.67567491337199 1.67567455068684 1.67567527605705 2.0808832266422 1.82184307376674 2453051.786251915 0.276459150337501 44.7199491270914 5.48132691170397 84.5554250683283 3327849.29300493 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 2017-Nov-05 03:55 < 00:01 Jupiter 1.61622911246769 1.61622875721446 1.61622946772073 1.92003234109809 1.62430834561994 2458062.663051966 0.295195837270854 48.3602962752083 19.093356660912 -85.729754543536 2873845.97023735 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 2031-Jul-23 03:00 < 00:01 Jupiter 1.67386229867529 1.67386192862143 1.67386266872905 2.47038346650541 2.25626613877307 2463070.624653718 0.474553947727008 40.2377599075898 7.58981373470538 -86.7182611645423 3190461.33836712 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 2045-Apr-01 20:54 < 00:01 Jupiter 1.79455290525492 1.79455253884934 1.7945532716604 3.42866720272633 3.28812499482133 2468072.370577351 0.645957759883329 39.5342907776672 13.7720069105966 -89.331790434721 3985387.84903074 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 2058-Nov-22 08:54 < 00:01 Jupiter 1.8486120171129 1.8486116778625 1.84861235636319 4.02755823905267 3.9121398009292 2473054.871102925 0.798193440137364 44.2334818702735 14.4307908384322 89.0385099029208 4815153.81159186 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 2072-Jul-07 10:22 < 00:01 Jupiter 1.83117970851805 1.83117934711865 1.83118006991746 3.62711427802909 3.49726274260764 2478030.931677117 0.99894932027508 38.6163694015949 14.2367120133716 -88.8231727059385 3988640.80559541 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 2086-Mar-06 16:49 00:01 Jupiter 1.75205320740801 1.75205277269023 1.75205364212588 2.60740763671805 2.41488783753994 2483021.200498142 1.27473484942902 49.2823332489198 7.76502317366371 84.3427474625568 2977557.59520131 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 2099-Nov-22 19:28 00:02 Jupiter 1.63986675726334 1.63986633011878 1.63986718440818 1.91724940893556 1.62567127018708 2488030.311198668 1.55573557855253 78.6444193810281 15.397552876653 -87.1741503899857 3193635.20618061 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 2113-Aug-09 18:36 00:02 Jupiter 1.61786471354428 1.6178643577707 1.61786506931777 2.06667477059368 1.79556611001383 2493038.275080893 1.81000588768082 68.1872365204638 14.604660462045 84.9697170726767 2879206.39699001 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 2127-Apr-27 02:27 00:02 Jupiter 1.71062500245615 1.71062453278044 1.71062547213176 2.79365528993826 2.61040269419118 2498046.602346831 2.04873465326415 43.6807478863503 11.11978285983 -88.6974828797289 2465273.85923622 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 2141-Jan-01 22:53 00:02 Jupiter 1.81497739182615 1.81497697309898 1.81497781055383 3.74994066720042 3.62335276188406 2503045.453561682 2.16862006962593 97.5671736833767 14.2820937809421 85.4740167974939 4457349.67300329 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 2154-Aug-18 17:12 00:02 Jupiter 1.85621958038228 1.85621923999892 1.85621992076564 4.00410151063017 3.88846976321909 2508022.216340034 2.30216364751261 84.288596242538 14.4387491629634 88.3410818285148 4756050.91575595 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 2168-Apr-03 09:11 00:03 Jupiter 1.81734437463429 1.81734392769973 1.81734482156875 3.2471230147862 3.10026672420595 2512998.882665005 2.56852568954641 37.2484016735123 13.7992548626967 87.3098419472588 2270539.84777845 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 2181-Dec-10 05:40 00:03 Jupiter 1.71474719523902 1.71474659167706 1.71474779880274 2.26094177372909 2.03074634464378 2517997.735870115 2.90628950876607 118.134169652325 6.44834082486164 -89.1769756903281 3303404.78774496 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 2195-Aug-28 15:11 00:03 Jupiter 1.61505059062604 1.6150501473821 1.61505103387108 1.91253660758018 1.61520427220494 2523007.132886957 3.17076320513523 124.309285991602 20.6090207934596 86.6505635836843 3013738.69862275 T 48 CATAB v2.0f-lin.ifort 2020-Dec-18 01:54:43 2020-Dec-18 01:54 Alternate Designations  A905 OF = 1952 BE = 1994 PG40  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-22 23:36 UT (server date/time)   Site Manager:   Ryan S. 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