+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14308 Hardeman (5193 T-3) Classification: Main-belt Asteroid          SPK-ID: 2014308 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 40 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2010544126223681 1.4773e-08   a 3.004146380397821 1.3668e-08 au q 2.400149494455324 4.848e-08 au i 12.52834076361374 3.6175e-07 deg node 151.3396981507409 3.6794e-06 deg peri 82.48096856825592 5.5618e-06 deg M 241.1829272116748 6.6941e-06 deg tp 2459828.206188539612 (2022-Sep-05.70618854) 3.7579e-05 TDB period 1901.866647370093 5.21 1.298e-05 3.554e-08 d yr n .1892877192508786 1.2918e-09 deg/d Q 3.608143266340318 1.6416e-08 au   Orbit Determination Parameters    # obs. used (total)      2259      data-arc span      15844 days (43.38 yr)      first obs. used      1977-10-16      last obs. used      2021-03-03      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .44919      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:24:45   Additional Information  Earth MOID = 1.42832 au   Jupiter MOID = 1.58766 au   T_jup = 3.185  [ 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 12.90   n/a MPCxxxxx   diameter diameter 9.604 km 0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.159   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   14308 Hardeman           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. Sjoerd Hardeman (1982-2011) was a member of the Jongeren WerkGroep voor sterrenkunde (Dutch Youth Association for astronomy). He was a leader on several astronomy holiday camps and gave many presentations on astronomy. He died from leukemia shortly before defending his PhD. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2018-10-26 Last Updated: 2019-04-09 [ 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 1905-Mar-21 05:57 00:03 Jupiter 1.58768310302548 1.58768256162996 1.58768364442488 1.78930715484569 1.46103668232456 2416925.748228293 2.6270605704742 262.832685447932 38.5701727260014 24.8808248041283 2066581.48034002 T 40 CATAB v2.0f-lin.ifort 2021-Apr-13 00:26:06 2021-Apr-13 00:26 1951-Jun-21 10:21 00:01 Jupiter 1.70991336802465 1.70991258087277 1.70991415518061 3.38506771096595 3.23542325088127 2433818.930959174 1.38260477856253 143.374868332356 6.74299107993647 -77.9769001086815 11516928.5988396 T 40 CATAB v2.0f-lin.ifort 2021-Apr-13 00:26:06 2021-Apr-13 00:26 1988-Dec-08 03:36 < 00:01 Jupiter 1.68281774804577 1.68281747387827 1.68281802221405 0.650456190501971 n/a 2447503.650310760 0.722259028991434 62.9882558854052 5.03238017953422 78.3192157681069 48981677.5235151 F 40 CATAB v2.0f-lin.ifort 2021-Apr-13 00:26:06 2021-Apr-13 00:26 2035-Jan-28 19:37 < 00:01 Jupiter 1.61077977803967 1.61077959095584 1.6107799651237 2.59060763568635 2.3789820124437 2464356.317095102 0.482968407410199 50.9566859547317 7.13545618166041 87.9762607573212 13316790.7214983 T 40 CATAB v2.0f-lin.ifort 2021-Apr-13 00:26:06 2021-Apr-13 00:26 2072-Sep-11 12:27 00:02 Jupiter 1.82216582999353 1.8221651331782 1.82216652680824 1.69530760013533 1.39441035366085 2478097.018897648 1.53176803518216 187.717378610675 20.6137369133262 28.7334895939988 3137008.45984676 T 40 CATAB v2.0f-lin.ifort 2021-Apr-13 00:26:06 2021-Apr-13 00:26 2081-May-04 21:37 00:01 Jupiter 1.96755852921431 1.96755735390305 1.9675597045277 4.30644038740831 4.20528720000812 2481254.400856693 1.43299582767628 120.664167159623 7.03886355818501 -63.7219395350331 10581415.668647 T 40 CATAB v2.0f-lin.ifort 2021-Apr-13 00:26:06 2021-Apr-13 00:26 2118-Sep-22 03:12 00:03 Jupiter 1.59936566689507 1.5993654538568 1.59936587993633 1.54107689290188 1.14704835258796 2494907.632989743 2.57168970035335 498.107479755561 31.2613836224256 -14.6609495368432 2000374.1387452 T 40 CATAB v2.0f-lin.ifort 2021-Apr-13 00:26:06 2021-Apr-13 00:26 2156-May-17 15:58 00:03 Jupiter 1.97935282849343 1.97935091725862 1.97935473974073 3.05966462457937 2.91645153910641 2508660.165512488 3.26118398743342 273.251127515876 3.60020414305084 -78.9085340650054 18094020.4133034 T 40 CATAB v2.0f-lin.ifort 2021-Apr-13 00:26:06 2021-Apr-13 00:26 2164-Dec-08 19:03 00:03 Jupiter 1.78656680862561 1.7865647781641 1.78656883910724 3.49565596932387 3.3572902960913 2511787.294071021 3.36773476008035 322.886098464666 6.40553108600544 -75.9533536914921 11168387.998203 T 40 CATAB v2.0f-lin.ifort 2021-Apr-13 00:26:06 2021-Apr-13 00:26 Alternate Designations  5193 T-3 = 1980 DV  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jun-23 12:01 UT (server date/time)   Site Manager:   Ryan S. 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