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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 312 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5732457986895413 3.0171e-09  
a 2.384402849802202 3.3201e-09 au
q 1.01755393376972 6.9559e-09 au
i 5.866383121736198 1.9074e-06 deg
node 26.98509966064645 4.7441e-06 deg
peri 174.5829134196338 5.9536e-06 deg
M 65.63270536554361 7.1973e-07 deg
tp 2458955.319638761177
(2020-Apr-15.81963876)
2.6509e-06 TDB
period 1344.831506706628
3.68
2.8088e-06
7.69e-09
d
yr
n .2676915273063522 5.591e-10 deg/d
Q 3.751251765834684 5.2233e-09 au
  Orbit Determination Parameters
   # obs. used (total)      5313  
   # 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      .2144  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-04 05:54:54  

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.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 1.23002328781904 1.23002313489871 1.23002344073945 3.88323272249051 3.70165504460537 2416661.707774261 0.07405420919603 19.6840952247865 3.40433452333392 71.6642877173968 20416192.7361238 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
1906-Jun-03 08:13 < 00:01 Earth 0.37536091041274 0.37536004465122 0.375361776174282 18.7670461928632 18.766667949108 2417364.842243291 0.0802487589700947 43.4868615703715 3.34170781134969 6.93037746527308 2078697.69868551 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
1917-Jun-07 23:36 < 00:01 Earth 0.420758553531316 0.420758288451531 0.420758818611102 20.4999604656771 20.4996515573241 2421387.483157543 0.023113787836865 13.4779181464297 3.20531632514271 11.6033053236406 5293274.93365869 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
1928-May-28 05:40 < 00:01 Earth 0.258599821989514 0.258598539609359 0.258601104369904 15.7975328597379 15.7968806251386 2425394.736208394 0.143160364281212 65.069688163362 3.01238585372777 10.6822111633994 2105532.73550941 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
1939-May-17 01:57 < 00:01 Earth 0.135639538501929 0.135637589918391 0.135641487087794 11.8973199207414 11.8956686927117 2429400.581472085 0.333574920850497 101.127991963765 2.56533433287715 16.1121803756077 1888001.33305191 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
1950-May-30 00:03 < 00:01 Earth 0.308902833306571 0.308901009199012 0.308904657414341 16.7770191585263 16.7765050174301 2433431.501824152 0.190205267388158 91.8428402593315 2.89944639160653 7.96457041168183 1940430.6239121 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
1952-Feb-26 08:22 < 00:01 Jupiter 1.23150127178666 1.23150104540356 1.23150149816982 3.94174634123661 3.76321283087813 2434068.848314021 0.133571763088296 21.4790222156493 3.12297485527199 -62.5648840079066 27784516.6997731 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
1999-Nov-29 14:37 < 00:01 Jupiter 1.65752058161864 1.65752006731901 1.65752109591828 5.2163656042418 5.11746368071811 2451512.108815983 0.0668039098700667 25.7504147351404 5.53342232272798 -17.5268875625655 7846017.17695965 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2009-Mar-12 01:47 < 00:01 Earth 0.179453436984314 0.179453037723812 0.179453836244858 11.8905432536407 11.8892944858603 2454902.574584594 0.0619793942769621 20.368238587924 2.43818842619164 -12.2994331336659 2196933.90688491 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2011-Feb-18 01:06 < 00:01 Jupiter 1.42903656299788 1.42903619074741 1.42903693524834 4.49932626973589 4.36560320385136 2455610.545589779 0.0305772470821487 20.8580149523166 4.5260105567657 33.8514657227068 11809244.0641617 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2020-Apr-29 09:56 < 00:01 Earth 0.0420484954734627 0.0420484773426656 0.0420485136042598 8.7015848003277 8.69429953488777 2458968.913767446 0.00642979641365868 1.96321749190974 0.903598906444818 -89.278161444159 6223210.89425837 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2031-May-18 06:56 < 00:01 Earth 0.127113863638203 0.127113491905859 0.12711423537067 11.5959280813898 11.5941202922273 2463004.788785410 0.0708835235482912 19.6082226621529 2.66749699070493 19.2321001947945 2163639.51918413 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2042-May-30 22:47 < 00:01 Earth 0.265008592663647 0.265007991108299 0.26500919421904 15.8584562712099 15.8578222552746 2467035.449200440 0.0706156811535139 30.5539758759112 3.0573938291999 11.0234518161116 2394834.80387792 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2058-Dec-04 04:25 < 00:01 Jupiter 1.19951073348801 1.19951066592689 1.1995108010492 3.87296967734419 3.68613810252004 2473066.683777114 0.07197911462748 13.5392785638525 1.76539359209971 -79.3028648890412 32773602.5172184 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2068-Feb-28 15:25 < 00:01 Earth 0.334591700115273 0.334590794618439 0.334592605612145 17.070476478565 17.0700099722963 2476440.142259154 0.0899363119930482 45.5390541741756 2.54462241589828 -7.48742337121937 2371012.60912761 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2079-Apr-16 13:31 < 00:01 Earth 0.0118494678630891 0.0118494366266402 0.0118494991073917 8.16985956573969 8.14228984835699 2480505.063079489 0.339908858284762 20.3188655324492 1.02678496046234 86.6885522605786 1754836.54913368 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2079-Apr-16 14:37 < 00:01 Moon 0.00919251876741695 0.00919248776822556 0.0091925497755071 7.26821404556601 7.26772350921843 2480505.109357885 0.352783693356362 19.240323965442 1.03352920451214 86.5688594866796 1329266.29696776 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2090-May-17 12:09 00:04 Earth 0.114956147848807 0.114934884904365 0.114977411372416 11.1407963376794 11.1387156615913 2484554.006462157 4.32946859285592 1135.71483056473 2.71700728593046 21.0140564065912 1952388.10773326 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2101-Jun-10 21:27 00:03 Earth 0.405314067886513 0.405281826428897 0.405346309386153 19.8490098073623 19.8486786110779 2488595.393579161 2.91755785280607 1620.87433049776 3.51565316044575 7.30452857138629 1917521.19011807 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2106-Oct-16 06:49 00:02 Jupiter 1.80431072298222 1.8043001423368 1.80432130362578 5.7351948682312 5.65274911342316 2490548.783739419 2.21883440635335 519.844192528664 5.5624506152997 -10.9582217590572 4175889.74774879 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2118-Jan-22 04:03 00:03 Jupiter 1.27970563844573 1.27969949268064 1.27971178423839 4.0976823798423 3.93283914953862 2494664.668478476 2.71219403624191 430.572456291215 3.47047609579569 49.096447845663 16597084.8661256 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2127-Apr-16 14:51 00:16 Earth 0.0167849108054387 0.0167797793745598 0.016790060588998 8.03591018737744 8.01613170201431 2498036.118472769 15.7764798836957 913.022728984505 0.949037172444011 73.6957610739039 2620271.57508735 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2138-May-20 22:04 01:51 Earth 0.120797430094079 0.120240656444477 0.121354616222812 11.3703586254689 11.3684185547927 2502088.419421094 110.710982609184 29922.1319307546 2.8554216013854 21.8574035552508 2022408.13375026 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2149-Jun-05 08:37 01:29 Earth 0.283860332972036 0.2830212573342 0.284699520094113 16.4834738076855 16.4829043435095 2506121.858895087 89.1761642979079 42774.0784013263 3.36911486487547 11.9792900261707 2247633.60028364 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2165-Nov-21 06:14 01:03 Jupiter 1.34111676695707 1.34094491422409 1.3412886267576 4.29336430184948 4.14364779464793 2512134.759619378 63.475372949921 9895.97208942543 4.05042947932559 -37.135030628243 13016952.5358732 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2175-Mar-09 16:06 01:48 Earth 0.260600640842639 0.259603262624726 0.261598096158122 14.6646095456763 14.6639123146611 2515530.170741836 108.233087114473 50236.897289929 2.40381147890423 -8.10938060755526 1913354.15216261 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2177-Mar-02 19:39 01:07 Jupiter 1.68933206883945 1.68903510612153 1.68962903514783 5.35846048322144 5.26405821702785 2516254.318805853 66.9734853932087 15319.0531017565 4.66166053944602 21.6882508165325 9399246.01228249 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2186-May-27 16:56 02:10 Earth 0.182391840314757 0.18149878510527 0.183285304201799 13.0370906790561 13.0359700937326 2519627.205573588 130.05038609225 46577.5402621782 3.11117725578249 17.0102201839465 2165892.14691656 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
2197-Jun-18 12:30 00:48 Earth 0.472667258180142 0.472112111589596 0.473222412730153 22.0373691656767 22.0371133662241 2523667.020753954 47.7343039302664 27851.5710390375 3.87288539931533 6.31247268294668 1777537.60737125 T 312 CATAB v2.0f-lin.ifort 2021-Mar-04 05:55:02 2021-Mar-04 05:55
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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