+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   958 Asplinda (A921 SD) Classification: Outer Main-belt Asteroid          SPK-ID: 2000958 [ 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 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1845756204346204 2.9638e-08   a 3.984859265370296 2.4339e-08 au q 3.249351394119928 1.1666e-07 au i 5.628803036327815 3.9658e-06 deg node 343.1191820082888 3.5141e-05 deg peri 92.94991879976156 3.6769e-05 deg M 152.9082355775203 1.1908e-05 deg tp 2457766.411558017052 (2017-Jan-12.91155802) 9.1372e-05 TDB period 2905.48012300245 7.95 2.6619e-05 7.288e-08 d yr n .1239037903408491 1.1352e-09 deg/d Q 4.720367136620663 2.8831e-08 au   Orbit Determination Parameters    # obs. used (total)      2783      data-arc span      36147 days (98.97 yr)      first obs. used      1921-09-28      last obs. used      2020-09-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .42623      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 04:23:58   Additional Information  Earth MOID = 2.27141 au   Jupiter MOID = .714682 au   T_jup = 3.018  [ 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 10.4   n/a MPO473775 IRAS observations used: 10 diameter diameter 45.112 km 0.405 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)   rotation period rot_per 16.543 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Warner, B.D.; Stephens, R.D.; Coley, D.R. (2018) Minor Planet Bull. 45, 147-161.] geometric albedo albedo 0.045   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)   B-V BV 0.834   0.082 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=6.89 deg. 958 Asplinda (A921 SD)          Discovered 1921-Sep-28 by Reinmuth, K. 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 1953-Dec-09 02:25 00:01 Jupiter 1.94899130538484 1.94899090802243 1.94899170274724 4.90411492704114 4.81468094077342 2434720.600607742 1.16656207051824 36.2768163844742 18.216519033911 -82.4004493560744 5605127.42247749 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:24:06 2020-Nov-13 04:24 1977-Apr-13 18:57 < 00:01 Jupiter 1.87827874079794 1.87827829536333 1.87827918623256 4.61868996661401 4.51999817100533 2443247.289498950 0.958426004823031 35.3837249568548 20.2646149910356 -81.6645112094691 4844202.10339726 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:24:06 2020-Nov-13 04:24 2000-Dec-21 12:37 < 00:01 Jupiter 1.84610786013303 1.84610744565656 1.84610827460951 4.51185638505142 4.40899279388416 2451900.025427875 0.433453346495345 34.5583364806261 17.6296743385688 -75.1283652876484 5125775.79986806 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:24:06 2020-Nov-13 04:24 2025-Jan-04 20:50 < 00:01 Jupiter 1.86996174562293 1.86996134483773 1.86996214640814 4.61589779479769 4.51670095153463 2460680.368132766 0.469404269765114 34.7888830743613 17.0705288054262 -75.6857606104165 5320157.84336641 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:24:06 2020-Nov-13 04:24 2049-Mar-25 06:46 00:01 Jupiter 1.87836831446263 1.87836791909211 1.87836870983314 4.62803511278346 4.52955168563706 2469525.781789717 1.11457326683247 37.9485379358181 17.5294179322256 -80.6089419697483 5330164.22881505 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:24:06 2020-Nov-13 04:24 2073-Jun-10 11:07 00:02 Jupiter 1.86514163236928 1.86514123574372 1.86514202899485 4.49760209150976 4.39547021509276 2478368.962957134 1.5538785065124 42.7466308513251 16.8152726224747 -79.7929974872935 5004817.13369133 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:24:06 2020-Nov-13 04:24 2097-Jun-14 00:17 00:02 Jupiter 1.8510099234421 1.85100952923192 1.85101031765238 4.36575270488398 4.25964743555007 2487138.512151468 1.64653784207845 45.1226121962719 16.2989010148677 -79.9409261975815 4799047.32784376 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:24:06 2020-Nov-13 04:24 2121-Feb-11 20:56 00:01 Jupiter 1.88612801440463 1.88612764011902 1.88612838869025 4.48176574185884 4.38041824588911 2495781.371956796 1.4021170975668 42.496193992541 16.9610842712103 -85.0410312865184 5439066.98358365 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:24:06 2020-Nov-13 04:24 2144-Jun-11 19:15 00:01 Jupiter 1.96773982866679 1.96773935397578 1.96774030335781 4.86539436933776 4.77610231429408 2504302.301844098 1.15338417265066 38.7904817519342 22.131714048128 -87.1130945453378 4596580.03350693 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:24:06 2020-Nov-13 04:24 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-16 14:02 UT (server date/time)   Site Manager:   Ryan S. 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