+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   52768 (1998 OR2) Classification: Amor [NEO, PHA]          SPK-ID: 2052768 [ 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 315 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .5732457978300229 3.0113e-09   a 2.384402844904947 3.3199e-09 au q 1.017553933729234 6.9418e-09 au i 5.866383143199844 1.9056e-06 deg node 26.98509928282202 4.7321e-06 deg peri 174.5829138328095 5.9423e-06 deg M 65.63270554233645 7.1931e-07 deg tp 2458955.319638856096 (2020-Apr-15.81963886) 2.6493e-06 TDB period 1344.831502563462 3.68 2.8087e-06 7.69e-09 d yr n .267691528131058 5.5908e-10 deg/d Q 3.751251756080659 5.2231e-09 au   Orbit Determination Parameters    # obs. used (total)      5323      # delay obs. used      3      # Doppler obs. used      0      data-arc span      12131 days (33.21 yr)      first obs. used      1987-06-30      last obs. used      2020-09-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .21469      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 10:47:56   Additional Information  Earth MOID = .0142261 au   Jupiter MOID = 1.20599 au   T_jup = 3.286  [ 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 16.00   n/a E2021B10   diameter diameter 1.75 km 0.3 Arecibo initial assessment April 16-22, 2020 (S. Marshall, P. Taylor)   rotation period rot_per 4.1120 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Koehn, B.W.; Bowell, E.L.G.; Skiff, B.A.; Sanborn, J.J.; et al. (2014) Minor Planet Bull. 41, 286-300.] [Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46, 458-503.] [Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Franco, L.; Marchini, A.; Saya, L.-F.; Galli, G.; et al. (2020) Minor Planet Bull. 47, 242-246.] [Observers at Arecibo Observatory (2020). https://www.ucf.edu/news/asteroid-visiting-earths-neighborhood-brin gs-its-own-face-mask/] [Warner, B.D.; Stephens, R.D. (2020) Minor Planet Bull. 47, 200-213.] [Warner, B.D.; Stephens, R.D. (2020) Minor Planet Bull. 47, 290-304.] 52768 (1998 OR2)          Discovered 1998-Jul-24 by NEAT at Haleakala Reference: 20030216/Numbers.arc Last Updated: 2004-04-19 [ 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 1904-Jun-30 04:59 < 00:01 Jupiter 1.23002326124904 1.23002310845883 1.23002341403932 3.88323224677209 3.70165454256068 2416661.707795911 0.0739970635659845 19.6676826407337 3.40111361909356 71.6651109948607 20442177.3293346 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 1906-Jun-03 08:13 < 00:01 Earth 0.375361206350212 0.375360341407898 0.375362071292548 18.7670542374022 18.7666759941073 2417364.842260106 0.0801710383509658 43.445782470458 3.3385016825628 6.93113278054188 2080856.09379275 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 1917-Jun-07 23:36 < 00:01 Earth 0.420758199147218 0.420757932936198 0.420758465358237 20.4999495213194 20.4996406125412 2421387.483133703 0.0232183135685093 13.5330275769673 3.20478894134126 11.5474654994636 5271403.79741671 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 1928-May-28 05:40 < 00:01 Earth 0.258598882698844 0.258597598717014 0.258600166680895 15.7975038953464 15.796851657182 2425394.736134450 0.143338827287274 65.1508579666693 3.00947721008129 10.6816887645905 2107212.68520726 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 1939-May-17 01:57 < 00:01 Earth 0.135638279824422 0.135636329616599 0.135640230034582 11.8972795051673 11.8956282562033 2429400.581320615 0.333854530570746 101.212291678863 2.56255213839695 16.112163912004 1890019.96618748 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 1950-May-30 00:03 < 00:01 Earth 0.308901774529135 0.308899949347649 0.308903599710831 16.7769868415692 16.7764726977202 2433431.501745773 0.190315189659138 91.8969485180535 2.89641212171255 7.96472422409279 1942352.05972544 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 1952-Feb-26 08:22 < 00:01 Jupiter 1.23150117671137 1.23150095025822 1.23150140316459 3.94174586461816 3.7632123185475 2434068.848266958 0.133628647192748 21.4796288314946 3.11798613187704 -62.5513330032937 27845119.4932994 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 1999-Nov-29 14:37 < 00:01 Jupiter 1.65752048094797 1.6575199669053 1.65752099499063 5.21636509286295 5.1174631539429 2451512.108818421 0.0667837448184933 25.7369668503011 5.52061885640997 -17.5198343561408 7860391.34903842 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2009-Mar-12 01:47 < 00:01 Earth 0.179453446512163 0.179453047259555 0.179453845764811 11.8905430752274 11.8892943074943 2454902.574586285 0.0619743630523924 20.3679691010963 2.43440501681328 -12.3008965938704 2199699.59709379 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2011-Feb-18 01:06 < 00:01 Jupiter 1.42903661709442 1.42903624509268 1.42903698909617 4.49932637594524 4.36560331920371 2455610.545602529 0.030568292416386 20.8431280937291 4.51433265634161 33.8450386323353 11830645.7890705 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2020-Apr-29 09:56 < 00:01 Earth 0.042048495524563 0.0420484774055973 0.0420485136435287 8.70158478951213 8.6942995240707 2458968.913767790 0.00642578841860703 1.96041571407929 0.903014855621339 -89.2853686962231 6226961.44765722 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2031-May-18 06:56 < 00:01 Earth 0.12711372726094 0.127113355535231 0.127114098986772 11.5959236345096 11.5941158427137 2463004.788767269 0.0708799370799606 19.607763310606 2.6649021053384 19.2308077119691 2165375.96840091 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2042-May-30 22:47 < 00:01 Earth 0.26500841680508 0.265007815244844 0.265009018365376 15.858450825552 15.8578168089781 2467035.449186543 0.0706124721860087 30.5541992543336 3.05459175808223 11.0230988428819 2396524.8422555 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2058-Dec-04 04:25 < 00:01 Jupiter 1.1995106877518 1.19951062021557 1.1995107552881 3.87296938367622 3.68613778772156 2473066.683794970 0.0719599714513791 13.5278394068697 1.76322709689032 -79.2937830437919 32816299.8088411 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2068-Feb-28 15:25 < 00:01 Earth 0.334591896378279 0.334590990616374 0.334592802140241 17.0704826051672 17.0700160993395 2476440.142246333 0.0899582190588361 45.5524759463771 2.54061882197781 -7.48824620718983 2374270.0022995 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2079-Apr-16 13:31 < 00:01 Earth 0.0118494753103558 0.0118494440921867 0.0118495065364042 8.16985923612223 8.14228953497515 2480505.063003338 0.340076109669336 20.3289692711122 1.02472701232199 86.6885520357557 1758416.14011636 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2079-Apr-16 14:37 < 00:01 Moon 0.00919252607931565 0.00919249509492025 0.00919255707264117 7.26821176965124 7.26772123353501 2480505.109278449 0.352957186626714 19.2498926858423 1.03143244805756 86.5679294242963 1331979.14233924 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2090-May-17 12:08 00:04 Earth 0.114949164451921 0.114927890863582 0.114970438620071 11.1405746702944 11.1384938263787 2484554.005475328 4.33185152394098 1136.28687622455 2.71443063901148 21.0145187017702 1954187.95189364 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2101-Jun-10 21:26 00:03 Earth 0.405303478158246 0.405271219619372 0.405335736739189 19.8486988556281 19.8483676455013 2488595.392914078 2.91913219185054 1621.73384706236 3.51265214422083 7.30474667515058 1919170.39489332 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2106-Oct-16 06:48 00:02 Jupiter 1.80430699120152 1.80429640475087 1.80431757765042 5.73518183958097 5.65273572344407 2490548.783260174 2.22003927073684 520.129353806843 5.54885585711177 -10.9584903477215 4186612.7052292 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2118-Jan-22 04:02 00:03 Jupiter 1.27970775361165 1.27970160350231 1.27971390374857 4.09768818163924 3.93284547361556 2494664.667888757 2.71406301509426 430.866537366456 3.46098518263139 49.0949811449487 16633149.6928104 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2127-Apr-16 14:46 00:16 Earth 0.0167865665088657 0.016781417312597 0.0167917340789154 8.03592109357593 8.01614458832653 2498036.114951560 15.7888431983282 913.796550306736 0.947179187294146 73.6520470697682 2625124.90509139 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2138-May-20 21:28 01:51 Earth 0.120618425268304 0.12006166870812 0.121175595547374 11.3645780071663 11.3626340686099 2502088.394697419 110.84570159602 29924.5164397202 2.851933510954 21.8730290805721 2023376.27886314 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2149-Jun-05 08:08 01:29 Earth 0.283590736607695 0.282752187250541 0.28442939764422 16.4752253651959 16.4746550742604 2506121.838995323 89.1655947970999 42749.1461419659 3.36561654401688 11.9912350982536 2249971.4740418 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2165-Nov-21 05:54 01:03 Jupiter 1.34106133911192 1.34088977629499 1.34123290897713 4.29318395574018 4.143454632842 2512134.745493923 63.3760611067279 9880.02789748227 4.04015929070876 -37.140287545237 13053103.5129461 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2175-Mar-09 15:31 01:48 Earth 0.260920748216632 0.25992534564523 0.261916227383572 14.6744778086506 14.6737819013643 2515530.146630836 107.929161717258 50136.7130226783 2.40031273028564 -8.10400739276245 1917334.53186864 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2177-Mar-02 19:18 01:07 Jupiter 1.68942778655854 1.68913141884565 1.68972415784664 5.35877587632841 5.26438466254338 2516254.303906975 66.8324792279816 15288.2543140895 4.65047738514277 21.6860792841291 9421445.94069764 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2186-May-27 16:14 02:10 Earth 0.182105188771349 0.181214241689636 0.182996544180522 13.027999135114 13.0268760025074 2519627.176575248 129.901578625453 46472.1701695886 3.10758630048482 17.0286358916259 2167247.50573653 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 2197-Jun-18 12:15 00:48 Earth 0.472489342405445 0.471936055262089 0.47304263746979 22.0321228739095 22.0318669172004 2523667.010130003 47.5799795452354 27758.5321592191 3.86946679309587 6.31713092407254 1779695.17195267 T 315 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:11 2021-Apr-13 10:48 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-18 09:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin