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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 294 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5730839067175435 3.0599e-09  
a 2.384435232697196 3.321e-09 au
q 1.017953774228132 7.0661e-09 au
i 5.865877548691111 1.9418e-06 deg
node 27.01552489226613 4.8531e-06 deg
peri 174.5661499519083 6.082e-06 deg
M 12.10138703600432 7.1894e-07 deg
tp 2458955.292616395239
(2020-Apr-15.79261640)
2.6826e-06 TDB
period 1344.858903305318
3.68
2.8097e-06
7.693e-09
d
yr
n .2676860740671102 5.5925e-10 deg/d
Q 3.75091669116626 5.2243e-09 au
  Orbit Determination Parameters
   # obs. used (total)      5169  
   # delay obs. used      3  
   # Doppler obs. used      0  
   data-arc span      12055 days (33.00 yr)  
   first obs. used      1987-06-30  
   last obs. used      2020-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .21092  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jul-02 05:57:22  

Additional Information
 Earth MOID = .0154377 au 
 Jupiter MOID = 1.20745 au 
 T_jup = 3.286 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458090.5 (2017-Dec-03.0) TDB
Reference: JPL 294 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5727311007986552 3.0342e-09  
q 1.016859193065396 7.089e-09 au
tp 2457613.848922135715
(2016-Aug-13.34892214)
3.8347e-06 TDB
node 27.06502765058225 4.8377e-06 deg
peri 174.449936037135 6.0713e-06 deg
i 5.879473213196799 1.9432e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      5169  
   # delay obs. used      3  
   # Doppler obs. used      0  
   data-arc span      12055 days (33.00 yr)  
   first obs. used      1987-06-30  
   last obs. used      2020-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .21092  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jul-02 05:57:22  

Additional Information
 Jupiter MOID = 1.20745 au 
 T_jup = 3.286 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.206515910039738E-18 -2.110058087953139E-17 -3.361271207149362E-15 -4.937009325267233E-15 2.350741796690816E-15 3.178315211678949E-16
q -2.110058087953139E-17 5.025452702277378E-17 4.156685992247095E-15 1.180182456708754E-14 -5.595631264339026E-15 -6.373414399023647E-16
tp -3.361271207149362E-15 4.156685992247095E-15 1.470494836589263E-11 -1.524364983766086E-12 1.004628350384601E-11 -1.105263940568268E-13
node -4.937009325267233E-15 1.180182456708754E-14 -1.524364983766086E-12 2.340357218748089E-11 -2.494616364420923E-11 2.759926487333828E-16
peri 2.350741796690816E-15 -5.595631264339026E-15 1.004628350384601E-11 -2.494616364420923E-11 3.686088731485924E-11 1.439274758342121E-13
i 3.178315211678949E-16 -6.373414399023647E-16 -1.105263940568268E-13 2.759926487333828E-16 1.439274758342121E-13 3.776176824229937E-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 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. 2019-August); 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. 46-4, in press.]

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 1.23002328954274 1.2300231352608 1.23002344382474 3.88323277208639 3.70165509689478 2416661.707782661 0.0741130225374906 19.8388325222549 3.43695868699001 71.6456298802572 20085682.0495334 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
1906-Jun-03 08:13 < 00:01 Earth 0.375360914510381 0.37536004870846 0.375361780312322 18.7670462668396 18.7666680230901 2417364.842243144 0.080273992017412 43.4891335626125 3.41238427332802 6.933908217145 2048650.90961141 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
1917-Jun-07 23:36 < 00:01 Earth 0.420758545075999 0.420758279317588 0.42075881083441 20.4999601667181 20.4996512583544 2421387.483156546 0.02314360794981 13.5201614549274 3.26696263274862 11.7833897455905 5272592.38882852 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
1928-May-28 05:40 < 00:01 Earth 0.258599804546804 0.258598522032498 0.258601087061345 15.797532316068 15.7968800814023 2425394.736207034 0.143169283742337 65.0781806035244 3.08115542524137 10.690626246149 2062529.16675775 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
1939-May-17 01:57 < 00:01 Earth 0.135639516846518 0.135637568206822 0.135641465488542 11.8973192691928 11.8956680408091 2429400.581470274 0.333588211264488 101.13192947529 2.62760815445036 16.1144491183885 1843523.01384998 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
1950-May-30 00:03 < 00:01 Earth 0.308902816657491 0.308900992324133 0.30890464099106 16.7770187064909 16.7765045653531 2433431.501823679 0.190249026431298 91.8540130770528 2.9668965571895 7.96388394573964 1898103.45737468 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
1952-Feb-26 08:22 < 00:01 Jupiter 1.23150126761432 1.23150104046798 1.23150149476072 3.94174634773438 3.76321283706495 2434068.848312145 0.133694226955911 21.5867090348033 3.1639704164892 -62.6277257686116 27149720.8987734 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
1999-Nov-29 14:37 < 00:01 Jupiter 1.65752057386714 1.65752005539445 1.65752109233983 5.21636577872502 5.11746385810647 2451512.108804058 0.0669968840767152 25.9681029292769 5.62528551322129 -17.590274097335 7743325.58971749 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2009-Mar-12 01:47 < 00:01 Earth 0.179453435926617 0.179453036593253 0.179453835260022 11.8905432893931 11.889294521609 2454902.574584523 0.0620448673666961 20.3706824201354 2.47135863833335 -12.2851993295927 2172751.0825661 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2011-Feb-18 01:06 < 00:01 Jupiter 1.42903656792686 1.42903619216176 1.42903694369196 4.49932636085973 4.36560329823472 2455610.545595449 0.0307488827707186 21.066730628455 4.61014831644717 33.9242063600457 11641862.052485 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2020-Apr-29 09:56 < 00:01 Earth 0.0420484959914275 0.0420484777038463 0.0420485142790087 8.70158482085109 8.69429955551814 2458968.913767393 0.0065002831936033 2.01277705292125 0.911174804469569 -89.032709166635 6165755.09506213 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2031-May-18 06:56 < 00:01 Earth 0.127113861254997 0.12711348946565 0.127114233044466 11.5959279325096 11.5941201432901 2463004.788784007 0.0709359993891126 19.6127413389007 2.73143458455524 19.2540886445555 2121300.61024546 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2042-May-30 22:47 < 00:01 Earth 0.265008588866504 0.265007987012491 0.265009190720577 15.8584561493845 15.8578221334352 2467035.449200223 0.0707092311940403 30.569289908747 3.12840230152097 11.0274415270264 2352085.78242565 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2058-Dec-04 04:25 < 00:01 Jupiter 1.19951073212563 1.19951066399449 1.19951080025684 3.87296969350031 3.68613811927745 2473066.683774127 0.0723279285590488 13.6876479902249 1.7876101566664 -79.3116445781146 32035196.5666162 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2068-Feb-28 15:25 < 00:01 Earth 0.334591703437644 0.334590797182481 0.334592609692845 17.0704765999584 17.0700100936977 2476440.142259213 0.0900469387264407 45.5760035775734 2.57991761985301 -7.4763192018482 2340460.38342849 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2079-Apr-16 13:31 < 00:01 Earth 0.011849467247294 0.0118494357260894 0.0118494987762452 8.16985959667209 8.14228987795896 2480505.063077175 0.340108571573011 20.3284452016845 1.04587886938077 86.6840765877771 1723467.59214306 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2079-Apr-16 14:37 < 00:01 Moon 0.00919251811737686 0.00919248682368375 0.0091925494198428 7.26821402940096 7.2677234930176 2480505.109355879 0.352992383602687 19.2493575456576 1.05299457199098 86.5638007094448 1304708.81212968 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2090-May-17 12:09 00:04 Earth 0.114956002987702 0.114934729206114 0.114977277349083 11.1407917362983 11.1387110567284 2484554.006441885 4.33172970074523 1136.29818593574 2.78138420781902 21.014650549441 1906968.88966418 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2101-Jun-10 21:27 00:03 Earth 0.405313850563017 0.405281592546421 0.405346108621683 19.8490033895765 19.8486721930074 2488595.393565214 2.91907554342446 1621.70844996051 3.59259588090243 7.30498394593288 1876471.54850538 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2106-Oct-16 06:49 00:02 Jupiter 1.80431064462861 1.80430005810339 1.80432123115197 5.73519479460617 5.65274903511792 2490548.783718423 2.22000743931034 520.133479819089 5.6640320443113 -10.9580554311001 4095138.64826182 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2118-Jan-22 04:03 00:03 Jupiter 1.27970568252805 1.27969953337468 1.27971183170899 4.09768240605428 3.93283918264666 2494664.668453464 2.7136052003654 430.808261074508 3.54415238942646 49.0966655234062 16333482.9999216 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2127-Apr-16 14:50 00:16 Earth 0.0167849436866574 0.0167798093153104 0.016790096429452 8.03591044837402 8.01613200244814 2498036.118399891 15.7846531985321 913.494927897299 0.963546490573222 73.6948155299619 2582648.57793614 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2138-May-20 22:03 01:51 Earth 0.120793783766208 0.12023673167442 0.121351248776728 11.370240870021 11.3683007206798 2502088.418917859 110.769235920926 29937.1740076901 2.92211270472386 21.8577462617425 1975954.23205364 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2149-Jun-05 08:36 01:29 Earth 0.283854841036861 0.283015356659987 0.2846944370138 16.4833058020753 16.4827363210768 2506121.858490167 89.2205597897831 42794.9579753949 3.44474524922138 11.9795519157176 2198086.79661047 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2165-Nov-21 06:13 01:04 Jupiter 1.34111563889489 1.34094370659356 1.3412875782704 4.29336066386002 4.14364389700477 2512134.759329404 63.5048858930204 9900.56977959345 4.12421587340604 -37.1351151102623 12708106.9094047 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2175-Mar-09 16:05 01:48 Earth 0.260607154428683 0.2596093250871 0.261605060933478 14.664810348485 14.6641131444441 2515530.170251617 108.280176071741 50259.6065374622 2.43761131005309 -8.10926640035307 1887013.89491802 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2177-Mar-02 19:39 01:07 Jupiter 1.68933401609605 1.68903691928822 1.68963111649751 5.35846685677945 5.26406481467595 2516254.318499502 67.0034828927912 15325.9698112528 4.74986376027415 21.6882352380179 9239207.79868781 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2186-May-27 16:55 02:10 Earth 0.182386009442085 0.181492562089294 0.183279865864569 13.0369056823106 13.0357850452573 2519627.204983177 130.110779545607 46598.0954177874 3.18197186157836 17.0106115817909 2117390.52551349 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
2197-Jun-18 12:30 00:48 Earth 0.472663639171026 0.472108266617302 0.473219019691057 22.0372624832688 22.0370066806192 2523667.020538349 47.7538733886631 27862.9142877622 3.9557870929975 6.3125962352368 1740236.85249522 T 294 CATAB v2.0f-lin.ifort 2020-Jul-02 05:57:42 2020-Jul-02 05:58
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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