Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
52768 (1998 OR2)
Classification: Apollo [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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 319 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5736751594860768 3.0214e-09  
a 2.383353768469227 3.3143e-09 au
q 1.016082915230901 6.9661e-09 au
i 5.870364834953635 1.9043e-06 deg
node 26.95326284639391 4.723e-06 deg
peri 174.5685366281179 5.8862e-06 deg
M 118.1492429768585 7.281e-07 deg
tp 2458955.427851029379
(2020-Apr-15.92785103)
2.5677e-06 TDB
period 1343.944062853829
3.68
2.8034e-06
7.675e-09
d
yr
n .2678682915087624 5.5876e-10 deg/d
Q 3.750624621707553 5.2157e-09 au
  Orbit Determination Parameters
   # obs. used (total)      5340  
   # delay obs. used      3  
   # Doppler obs. used      0  
   data-arc span      12491 days (34.20 yr)  
   first obs. used      1987-06-30  
   last obs. used      2021-09-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .22293  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Sep-11 06:31:36  

Additional Information
 Earth MOID = .0142947 au 
 Jupiter MOID = 1.20555 au 
 T_jup = 3.286 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458173.5 (2018-Feb-24.0) TDB
Reference: JPL 319 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5726890897963393 2.9773e-09  
q 1.017005137122744 6.9514e-09 au
tp 2457613.848353096617
(2016-Aug-13.34835310)
3.779e-06 TDB
node 27.0658257318708 4.7134e-06 deg
peri 174.4536982745244 5.8855e-06 deg
i 5.879243240977534 1.9039e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      5340  
   # delay obs. used      3  
   # Doppler obs. used      0  
   data-arc span      12491 days (34.20 yr)  
   first obs. used      1987-06-30  
   last obs. used      2021-09-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .22293  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Sep-11 06:31:36  

Additional Information
 Jupiter MOID = 1.20555 au 
 T_jup = 3.286 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.864301012879063E-18 -2.02873622297368E-17 -3.25387634692247E-15 -4.561312740235109E-15 2.120366344534696E-15 2.839124348205118E-16
q -2.02873622297368E-17 4.832164654464198E-17 3.900995082952471E-15 1.090746366037918E-14 -5.048232750114659E-15 -5.614086940483175E-16
tp -3.25387634692247E-15 3.900995082952471E-15 1.428051303328739E-11 -1.334618585354831E-12 9.345427383132416E-12 -1.302233555504275E-13
node -4.561312740235109E-15 1.090746366037918E-14 -1.334618585354831E-12 2.221616582034676E-11 -2.355090709355773E-11 4.036872908880665E-14
peri 2.120366344534696E-15 -5.048232750114659E-15 9.345427383132416E-12 -2.355090709355773E-11 3.463869657015704E-11 7.062407380355737E-14
i 2.839124348205118E-16 -5.614086940483175E-16 -1.302233555504275E-13 4.036872908880665E-14 7.062407380355737E-14 3.625009327293651E-12

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.arcLast 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 1.23002325723551 1.23002310725107 1.23002340722009 3.883232246418 3.7016545415822 2416661.707796043 0.0739108947226721 19.4054748686332 3.38090754369092 71.8372392784596 20506789.258899 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
1906-Jun-03 08:13 < 00:01 Earth 0.375361200059771 0.375360335205251 0.375362064914313 18.7670540654765 18.7666758221718 2417364.842259497 0.080155000212088 43.440480589757 3.30169088592042 6.92094743967403 2095231.69278409 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
1917-Jun-07 23:36 < 00:01 Earth 0.420758207316839 0.42075794214287 0.420758472490808 20.4999497495659 20.4996408407972 2421387.483133709 0.023212168814378 13.4731951955805 3.18227726292966 11.3873890153915 5271540.74114481 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
1928-May-28 05:40 < 00:01 Earth 0.258598901440642 0.258597617518723 0.258600185362796 15.7975044760031 15.7968522379099 2425394.736135650 0.143335274745686 65.1470859133701 2.98543626945387 10.6780829149762 2122326.48628168 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
1939-May-17 01:57 < 00:01 Earth 0.135638302358056 0.135636352179777 0.135640252538663 11.897280243913 11.8956289953259 2429400.581323211 0.333833288469878 101.211167633479 2.54671990853427 16.1129016916901 1901265.30024198 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
1950-May-30 00:03 < 00:01 Earth 0.308901787393848 0.308899962841391 0.308903611946515 16.7769873310101 16.7764731871976 2433431.501747452 0.190188064765678 91.8666097306995 2.87281679043436 7.97060506436495 1958626.55782346 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
1952-Feb-26 08:22 < 00:01 Jupiter 1.23150118248268 1.23150095730778 1.23150140765765 3.94174585944827 3.76321231398886 2434068.848271441 0.133339273912092 21.3394663867801 3.1121114702711 -62.5228060474718 27856198.2328191 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
1999-Nov-29 14:37 < 00:01 Jupiter 1.65752049582995 1.65751999002495 1.65752100163495 5.21636495342293 5.11746301270458 2451512.108829904 0.0665448722600515 25.3226980495543 5.51047935116904 -17.5036320738981 7910716.8008144 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2009-Mar-12 01:47 < 00:01 Earth 0.179453446450749 0.179453047273801 0.179453845627739 11.8905430028995 11.8892942351583 2454902.574586834 0.0618357967222067 20.3652513502111 2.41599705972482 -12.3145059613942 2214573.5677028 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2011-Feb-18 01:06 < 00:01 Jupiter 1.42903660590562 1.42903624110975 1.4290369707015 4.49932622846932 4.3656031661474 2455610.545592519 0.0302449620008438 20.4468527392862 4.50592131941179 33.9153543524018 11887251.3782437 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2020-Apr-29 09:56 < 00:01 Earth 0.0420484958203666 0.0420484777682613 0.042048513872472 8.70158481313418 8.69429954776381 2458968.913767806 0.00639348109099725 1.94792847229471 0.8993865993173 -88.9488194675812 6260944.4313858 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2031-May-18 06:56 < 00:01 Earth 0.127113727086675 0.127113355389052 0.127114098784421 11.595923654066 11.5941158622707 2463004.788767189 0.0708243011779608 19.6072182211094 2.65082351502013 19.2368444197929 2175365.19244487 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2042-May-30 22:47 < 00:01 Earth 0.265008414200059 0.265007813063609 0.265009015336555 15.8584507580077 15.8578167414249 2467035.449186050 0.0704583099586272 30.5351167784218 3.03448426686954 11.0461825006917 2412937.49555387 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2058-Dec-04 04:25 < 00:01 Jupiter 1.19951068958588 1.19951062300055 1.19951075617128 3.87296941610394 3.68613782208579 2473066.683787159 0.0712223219277235 13.3439686827646 1.76021497546472 -79.3286122652896 32837316.9653483 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2068-Feb-28 15:25 < 00:01 Earth 0.33459189999758 0.33459099505363 0.334592804941587 17.0704827746273 17.0700162688093 2476440.142245159 0.0897575486110348 45.5126945761902 2.52615268113469 -7.50114271626559 2389418.92227386 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2079-Apr-16 13:31 < 00:01 Earth 0.0118494753790103 0.0118494441692835 0.0118495065966164 8.16985924358754 8.14228954262574 2480505.063003412 0.340071645379373 20.3282059993786 1.02437464844969 86.6891383675504 1759127.59901987 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2079-Apr-16 14:37 < 00:01 Moon 0.0091925261534389 0.00919249517805749 0.00919255713775094 7.26821180488305 7.26772126877316 2480505.109279525 0.352952713680429 19.2491554483714 1.03105484666424 86.5685927807036 1332482.43152278 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2090-May-17 12:08 00:04 Earth 0.114949225590096 0.114927952327478 0.114970499432506 11.1405766139375 11.1384957714917 2484554.005483506 4.33177894217185 1136.26936837711 2.70055602576672 21.0145036549631 1963818.92307427 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2101-Jun-10 21:26 00:03 Earth 0.405303567691453 0.405271309663343 0.405335825761655 19.8487014700968 19.8483702600868 2488595.392919130 2.91908085178052 1621.70816832835 3.48229765757001 7.30474602333101 1935780.58615575 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2106-Oct-16 06:48 00:02 Jupiter 1.8043070343442 1.80429644838816 1.80431762029838 5.73518217085888 5.65273606153946 2490548.783253029 2.21998144462513 520.10489554521 5.53148438874002 -10.958404584382 4198845.08404351 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2118-Jan-22 04:02 00:03 Jupiter 1.27970772998748 1.27970158010346 1.27971387989907 4.09768808581395 3.93284537066695 2494664.667888854 2.71400168867055 430.852653484754 3.4552639031626 49.0951923664171 16666239.7639693 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2127-Apr-16 14:46 00:16 Earth 0.0167865530055901 0.0167814040113848 0.016791720373015 8.03592100614327 8.01614448475012 2498036.114980758 15.7885814638444 913.780524446164 0.947032894332405 73.6524115255516 2625629.20268493 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2138-May-20 21:29 01:51 Earth 0.120619901799152 0.120063150627802 0.121177066670903 11.3646257485556 11.3626818419649 2502088.394902172 110.843476391815 29924.1993323846 2.8384753692303 21.8728997151506 2032677.97863839 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2149-Jun-05 08:08 01:29 Earth 0.283592957587602 0.282754411852418 0.284431614998438 16.4752933165757 16.4747230324587 2506121.839158914 89.164829163316 42748.9458338866 3.3445371118655 11.9911366706264 2264002.54959798 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2165-Nov-21 05:54 01:03 Jupiter 1.34106180103975 1.3408902371696 1.34123337195825 4.29318542398035 4.14345620664498 2512134.745612953 63.3763585149759 9880.08396709645 4.03261867834748 -37.1402609911601 13062495.2020433 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2175-Mar-09 15:31 01:48 Earth 0.260918119895538 0.25992270750757 0.261913608882202 14.6743967158722 14.6737007977297 2515530.146829096 107.930966048971 50137.213102241 2.38222835230775 -8.10405250605869 1931797.35929222 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2177-Mar-02 19:18 01:07 Jupiter 1.68942698882682 1.68913061789205 1.68972336333679 5.35877326407847 5.26438195848512 2516254.304029615 66.833254732781 15288.4214194974 4.63810083423026 21.6860936685496 9440320.12654706 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2186-May-27 16:15 02:10 Earth 0.18210754460823 0.181216583975168 0.182998913568163 13.0280739305604 13.0269508189323 2519627.176814309 129.902237960575 46472.839202025 3.09111601259691 17.0284841297479 2178567.2058383 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
2197-Jun-18 12:15 00:48 Earth 0.472490804674371 0.471937501833895 0.473044115436181 22.0321660830556 22.0319101276406 2523667.010218005 47.58127242703 27759.3176829156 3.83746210197297 6.31709346355151 1794475.20002364 T 319 CATAB v2.0g-lin.ifort 2021-Sep-11 06:31:56 2021-Sep-11 06:31
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-18 15:12 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin