+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 309 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .5730839065518345 3.0223e-09   a 2.384435232787917 3.3204e-09 au q 1.017953774661985 6.9736e-09 au i 5.865877431953582 1.9151e-06 deg node 27.01552602565892 4.755e-06 deg peri 174.5661485639699 5.9713e-06 deg M 12.10138709210218 7.1443e-07 deg tp 2458955.292616183093 (2020-Apr-15.79261618) 2.6656e-06 TDB period 1344.858903382071 3.68 2.8091e-06 7.691e-09 d yr n .2676860740518331 5.5914e-10 deg/d Q 3.75091669091385 5.2232e-09 au   Orbit Determination Parameters    # obs. used (total)      5252      # 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      .21553      source      ORB      producer      Otto Matic      solution date      2021-Jan-09 05:23:19   Additional Information  Earth MOID = .0154377 au   Jupiter MOID = 1.20745 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 15.8   n/a MPO422042   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 1.23002328570032 1.23002313223636 1.23002343916434 3.88323273845148 3.70165506102884 2416661.707779148 0.0740705968999026 19.7350224524942 3.41291729652944 71.6334378861294 20337490.172085 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 1906-Jun-03 08:13 < 00:01 Earth 0.375360915599347 0.37536004982497 0.375361781373745 18.7670463594232 18.7666681156766 2417364.842243631 0.0802537759130666 43.4876063422229 3.35009597045648 6.93156212560641 2075241.85614834 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 1917-Jun-07 23:36 < 00:01 Earth 0.420758555250348 0.420758289965638 0.420758820535082 20.499960449463 20.499651541111 2421387.483156685 0.0231206418370016 13.4895309915369 3.21194682410323 11.630350035615 5290820.90956803 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 1928-May-28 05:40 < 00:01 Earth 0.258599820172621 0.258598537769632 0.258601102575831 15.7975328082589 15.7968805736529 2425394.736208113 0.14316229255707 65.0710540272758 3.02017988695685 10.6832429181208 2100621.27166303 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 1939-May-17 01:57 < 00:01 Earth 0.135639532785346 0.135637584195098 0.135641481377923 11.8973197375118 11.8956685093871 2429400.581471141 0.333578584528935 101.128408581362 2.57192654719861 16.1123416434357 1883232.16884483 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 1950-May-30 00:03 < 00:01 Earth 0.308902825338805 0.308901001134156 0.308904649543664 16.7770189892412 16.7765048481266 2433431.501824195 0.19022429935524 91.8476229159439 2.9066440162305 7.964119405118 1935777.11323577 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 1952-Feb-26 08:22 < 00:01 Jupiter 1.2315012727315 1.23150104613321 1.23150149932985 3.94174628911614 3.76321277642521 2434068.848323572 0.133624050806798 21.5071146243526 3.13270514312155 -62.5833930470656 27718945.4910863 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 1999-Nov-29 14:37 < 00:01 Jupiter 1.65752058701426 1.65752007127816 1.65752110275036 5.21636556347349 5.11746363948696 2451512.108819411 0.0668726153906177 25.8226233420032 5.55120850736816 -17.5355094863238 7822791.19520818 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2009-Mar-12 01:47 < 00:01 Earth 0.17945343705652 0.17945303777938 0.1794538363337 11.8905432270773 11.8892944592946 2454902.574584841 0.0620027751853698 20.3687309257263 2.44830100604209 -12.2955096622914 2189383.709888 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2011-Feb-18 01:06 < 00:01 Jupiter 1.42903655828759 1.42903618471972 1.42903693185554 4.49932624945485 4.36560318250158 2455610.545588957 0.0306202880767099 20.9310541330569 4.53939743939505 33.8421623624434 11770165.8909754 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2020-Apr-29 09:56 < 00:01 Earth 0.0420484955151869 0.0420484773524738 0.0420485136779001 8.70158481007876 8.69429954465424 2458968.913767513 0.00644764918285213 1.96753354049632 0.905165042936483 -89.2483435225609 6208758.36379943 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2031-May-18 06:56 < 00:01 Earth 0.127113862701725 0.127113490956717 0.127114234446855 11.595927983036 11.5941201938449 2463004.788783821 0.0708995604879046 19.6089661691213 2.67481353052918 19.2337668412956 2158668.88962236 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2042-May-30 22:47 < 00:01 Earth 0.265008589786854 0.265007988127767 0.265009191445986 15.8584561317995 15.8578221158517 2467035.449199343 0.0706484421285048 30.5591567162392 3.06573622189436 11.0228813850252 2389548.44508419 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2058-Dec-04 04:25 < 00:01 Jupiter 1.19951073392878 1.19951066623361 1.19951080162402 3.8729696465693 3.68613807025572 2473066.683786729 0.0721230108504415 13.5751892354326 1.76982416841326 -79.3166586499706 32667357.6610483 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2068-Feb-28 15:25 < 00:01 Earth 0.334591711068518 0.334590805346294 0.334592616790799 17.0704767726365 17.0700102663912 2476440.142258732 0.0899783238464636 45.5498858763329 2.55503055495858 -7.48267180921986 2361474.11817049 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2079-Apr-16 13:31 < 00:01 Earth 0.0118494680497282 0.0118494367815567 0.011849499325744 8.16985955301361 8.14228983602281 2480505.063076244 0.339943902680883 20.3209356889882 1.02880186182675 86.6879271321642 1751388.99935491 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2079-Apr-16 14:37 < 00:01 Moon 0.00919251894850352 0.00919248791662909 0.00919254998926573 7.26821395521697 7.26772341887296 2480505.109354747 0.35282011965753 19.2422868359771 1.03556613684773 86.5681177930072 1326648.95745537 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2090-May-17 12:09 00:04 Earth 0.114955830209065 0.114934565145745 0.114977095851673 11.1407862858263 11.1387056021108 2484554.006417552 4.32992266540487 1135.8289688575 2.72448175886014 21.0141830264831 1947050.43404572 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2101-Jun-10 21:27 00:03 Earth 0.4053135854664 0.405281340786438 0.40534583018841 19.8489956526335 19.8486644557187 2488595.393548727 2.9178573830553 1621.03664999376 3.52488841146696 7.3046175109776 1912537.78463621 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2106-Oct-16 06:49 00:02 Jupiter 1.80431057003163 1.80429998827748 1.80432115178403 5.73519453477689 5.65274876806554 2490548.783704801 2.21906906173058 519.898319264517 5.57984833756102 -10.9579534846708 4163659.13312703 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2118-Jan-22 04:03 00:03 Jupiter 1.27970572727351 1.2796995808723 1.2797118737023 4.09768258645419 3.93283937649256 2494664.668444967 2.71246930604097 430.615085393042 3.4804491887529 49.0963059384903 16540064.5824496 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2127-Apr-16 14:50 00:16 Earth 0.0167849874825123 0.0167798549018359 0.0167901384191397 8.03591069377603 8.01613230012577 2498036.118308432 15.7780389540892 913.115716305522 0.95079139435858 73.6937148122459 2615424.65122277 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2138-May-20 22:02 01:51 Earth 0.120789108605912 0.120232301645387 0.121346328153837 11.3700899626335 11.3681497124364 2502088.418273076 110.724034226421 29924.0771358218 2.86354278174933 21.8581338995877 2016626.11560333 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2149-Jun-05 08:35 01:29 Earth 0.283847795270567 0.28300869484458 0.28468700720301 16.4830902357284 16.4825207331456 2506121.857969756 89.1809206148849 42775.430866212 3.3786070714034 11.9798484086852 2241353.98928445 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2165-Nov-21 06:13 01:03 Jupiter 1.34111420240466 1.3409423543572 1.34128605751943 4.29335591673541 4.14363881509695 2512134.758964984 63.4739696154354 9895.73210664159 4.06128405804208 -37.1352119554248 12987884.6950792 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2175-Mar-09 16:04 01:48 Earth 0.260615540178939 0.259618212290136 0.261612945148313 14.6650687867038 14.664371617384 2515530.169619989 108.223419418015 50234.3309229768 2.41347544221267 -8.10913029324494 1905711.79393164 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2177-Mar-02 19:38 01:07 Jupiter 1.68933649916972 1.68903955245999 1.68963344946944 5.35847513747444 5.26407338387181 2516254.318114385 66.9694195202748 15318.2239645897 4.67415887129171 21.6881840749088 9375429.02427313 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2186-May-27 16:54 02:10 Earth 0.18237849953313 0.181485515975011 0.18327189177695 13.0366675865529 13.035546882883 2519627.204224387 130.047349304164 46574.017710958 3.12014018259385 17.0110797203554 2159657.94843394 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 2197-Jun-18 12:29 00:48 Earth 0.472658967686346 0.472103906561954 0.473214036768451 22.0371246394627 22.0368688326849 2523667.020257911 47.7272474369694 27847.2950437413 3.88344369096103 6.31269307028349 1772746.38217662 T 309 CATAB v2.0f-lin.ifort 2021-Jan-09 05:23:30 2021-Jan-09 05:23 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-15 15:12 UT (server date/time)   Site Manager:   Ryan S. 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