+ 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 311 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .5732457987597231 3.0198e-09   a 2.384402849788191 3.3201e-09 au q 1.017553933596399 6.9624e-09 au i 5.86638312738149 1.9135e-06 deg node 26.98509965989455 4.7441e-06 deg peri 174.5829133145018 5.9582e-06 deg M 65.6327053916097 7.2153e-07 deg tp 2458955.319638665965 (2020-Apr-15.81963867) 2.6579e-06 TDB period 1344.831506694774 3.68 2.8089e-06 7.69e-09 d yr n .2676915273087118 5.5911e-10 deg/d Q 3.751251765979983 5.2233e-09 au   Orbit Determination Parameters    # obs. used (total)      5309      # 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.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .21439      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 21:01:47   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 1.23002328666057 1.23002313332835 1.23002343999287 3.883232669293 3.70165498862316 2416661.707763586 0.0740663276085227 19.7206694934801 3.40888310741855 71.6362449099351 20360241.581028 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 1906-Jun-03 08:13 < 00:01 Earth 0.375360910079508 0.375360044309496 0.37536177584954 18.767046174081 18.7666679303251 2417364.842243061 0.080251839529962 43.4873742407248 3.34679026307614 6.93138104827962 2076674.01750517 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 1917-Jun-07 23:36 < 00:01 Earth 0.420758544899057 0.420758279662929 0.420758810135184 20.4999601521149 20.4996512437509 2421387.483156159 0.0231181139673213 13.4867397575511 3.20915542738159 11.6228434308091 5292112.1576499 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 1928-May-28 05:40 < 00:01 Earth 0.258599806410687 0.258598524014924 0.25860108880667 15.797532388897 15.7968801542389 2425394.736207087 0.143161811056415 65.0706170270608 3.01716393797075 10.6828904608947 2102547.42050538 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 1939-May-17 01:57 < 00:01 Earth 0.135639518481522 0.135637569896437 0.135641467068935 11.897319273473 11.8956680451098 2429400.581469320 0.333577466775517 101.128097568089 2.56909547354244 16.1122451702137 1885292.48321912 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 1950-May-30 00:03 < 00:01 Earth 0.308902814787591 0.30890099061059 0.308904638964802 16.7770186146466 16.7765044735029 2433431.501822790 0.190219741893717 91.846240132784 2.90353647538938 7.96415155493734 1937768.09205497 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 1952-Feb-26 08:22 < 00:01 Jupiter 1.23150127142497 1.23150104487793 1.23150149797216 3.94174631117253 3.76321279933409 2434068.848318531 0.13361052793005 21.4983235182 3.12809987817269 -62.5745457119633 27774902.4468018 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 1999-Nov-29 14:37 < 00:01 Jupiter 1.65752058618377 1.65752007077809 1.65752110158944 5.21636565779309 5.11746373557938 2451512.108813365 0.0668494210327625 25.8055187014325 5.54037781118076 -17.5289106349166 7835464.12071507 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2009-Mar-12 01:47 < 00:01 Earth 0.179453437183095 0.179453037912942 0.179453836453288 11.8905432871839 11.8892945194083 2454902.574584154 0.061997058701085 20.3684995567113 2.4447549953828 -12.2968879303588 2191967.06693383 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2011-Feb-18 01:06 < 00:01 Jupiter 1.42903655891892 1.42903618565802 1.4290369321799 4.49932623453143 4.36560316718102 2455610.545587571 0.0306092173706438 20.9130476971052 4.52944687540389 33.8375064273163 11788338.0077085 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2020-Apr-29 09:56 < 00:01 Earth 0.0420484954060919 0.0420484772557097 0.0420485135564741 8.70158481349738 8.69429954805681 2458968.913767678 0.00644309196121543 1.96480600447105 0.904557192184592 -89.2564126942837 6212915.30740147 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2031-May-18 06:56 < 00:01 Earth 0.127113862827319 0.127113491088568 0.127114234566192 11.5959280162682 11.594120227084 2463004.788784367 0.0708952679822576 19.6085260913216 2.67210920290468 19.2324514161141 2160467.4568982 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2042-May-30 22:47 < 00:01 Earth 0.265008590383673 0.265007988752754 0.265009192014645 15.8584561690324 15.8578221530876 2467035.449199656 0.0706405963516844 30.5577012098094 3.06278523401094 11.0225324342944 2391346.14290646 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2058-Dec-04 04:25 < 00:01 Jupiter 1.19951073395939 1.19951066629865 1.1995108016202 3.87296970488601 3.68613813153309 2473066.683769423 0.0720893712879112 13.5624731023519 1.76793149344105 -79.3090856232768 32711249.0215337 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2068-Feb-28 15:25 < 00:01 Earth 0.334591702821729 0.334590797161226 0.334592608482289 17.0704765044269 17.0700099981628 2476440.142259399 0.0899682201944944 45.5468629316077 2.55134684136615 -7.48341889574814 2364565.37169293 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2079-Apr-16 13:31 < 00:01 Earth 0.0118494678581628 0.0118494366189955 0.0118494991051839 8.16985956754495 8.14228985015689 2480505.063079326 0.339929657959891 20.3201849836448 1.02698897571299 86.6887630795539 1754510.31684111 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2079-Apr-16 14:37 < 00:01 Moon 0.00919251876284986 0.0091924877609784 0.00919254977362008 7.26821405217211 7.26772351582473 2480505.109358078 0.352805231438092 19.2415734551605 1.03372587550821 86.5690726742097 1329019.0718645 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2090-May-17 12:09 00:04 Earth 0.114956137585183 0.114934873285057 0.114977402464553 11.1407960132367 11.1387153369022 2484554.006460535 4.3297542461561 1135.78788281948 2.72180790080497 21.014140693675 1948980.01852418 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2101-Jun-10 21:27 00:03 Earth 0.405314052359578 0.405281808808152 0.405346295953027 19.8490093485718 19.848678152267 2488595.393578002 2.91775189360816 1620.97982526902 3.52168795657521 7.30459278281139 1914278.30274239 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2106-Oct-16 06:49 00:02 Jupiter 1.80431072301153 1.80430014164489 1.80432130437633 5.73519503914949 5.65274928683565 2490548.783728473 2.21899230022126 519.879286718265 5.56820477152863 -10.9579577272538 4172787.58922367 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2118-Jan-22 04:03 00:03 Jupiter 1.27970563880704 1.27969949262856 1.2797117850131 4.09768235959482 3.93283912849 2494664.668474559 2.71237692036106 430.599818562462 3.47219796063651 49.0963313612216 16570412.4602999 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2127-Apr-16 14:51 00:16 Earth 0.0167849134097301 0.0167797816183501 0.0167900635562178 8.03591020466983 8.01613172242192 2498036.118466743 15.7775265198813 913.08346780835 0.949323094015172 73.6956968335098 2619491.61802932 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2138-May-20 22:04 01:51 Earth 0.120797150900447 0.120240341012877 0.121354373322981 11.3703496462648 11.3684095695719 2502088.419383097 110.718413716174 29924.0860312356 2.86090119182086 21.8574313488606 2018575.11621401 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2149-Jun-05 08:37 01:29 Earth 0.283859911270636 0.283020781818654 0.284699152221732 16.4834609448843 16.482891479418 2506121.858864297 89.1819596419335 42776.8253126157 3.37565248847703 11.9793114875741 2243330.32769822 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2165-Nov-21 06:14 01:03 Jupiter 1.34111668353081 1.34094482010897 1.34128855402104 4.29336396420457 4.14364743532177 2512134.759603345 63.4793457804611 9896.58799678056 4.0526931823571 -37.1350283067847 13016797.319132 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2175-Mar-09 16:06 01:48 Earth 0.260601142255225 0.259603702670618 0.261598658946542 14.6646249045595 14.6639276756162 2515530.170704929 108.239605763077 50239.9871113916 2.40976296099779 -8.10937040419238 1908575.26445222 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2177-Mar-02 19:39 01:07 Jupiter 1.68933221263303 1.68903523171483 1.68962919714209 5.35846102630902 5.26405877796225 2516254.318786534 66.9775833622612 15319.9915268873 4.66418694834943 21.6882467002833 9394818.78380099 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2186-May-27 16:56 02:10 Earth 0.182391393659631 0.181498284420229 0.183284911628629 13.0370764749756 13.0359558856868 2519627.205527768 130.058514013352 46580.3666660714 3.11739704342798 17.0102513551081 2161630.77317931 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 2197-Jun-18 12:30 00:48 Earth 0.472666980744273 0.472111801909262 0.473222167539709 22.0373609644949 22.037105164797 2523667.020737049 47.7370904928983 27853.1893743128 3.88016563946293 6.31248432714943 1774222.52582587 T 311 CATAB v2.0f-lin.ifort 2021-Feb-24 21:01:56 2021-Feb-24 21:01 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-27 23:27 UT (server date/time)   Site Manager:   Ryan S. 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