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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 307 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5730839065557125 3.0258e-09  
a 2.384435232765522 3.3204e-09 au
q 1.017953774643177 6.9821e-09 au
i 5.865877422119406 1.916e-06 deg
node 27.01552598992753 4.7619e-06 deg
peri 174.566148607956 5.9773e-06 deg
M 12.101387091787 7.1458e-07 deg
tp 2458955.292616184907
(2020-Apr-15.79261618)
2.6662e-06 TDB
period 1344.858903363124
3.68
2.8091e-06
7.691e-09
d
yr
n .2676860740556043 5.5914e-10 deg/d
Q 3.750916690887867 5.2233e-09 au
  Orbit Determination Parameters
   # obs. used (total)      5245  
   # 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      .21552  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-14 05:24:19  

Additional Information
 Earth MOID = .0154377 au 
 Jupiter MOID = 1.20745 au 
 T_jup = 3.286 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458105.5 (2017-Dec-18.0) TDB
Reference: JPL 307 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5727248495761779 2.9998e-09  
q 1.016882499343545 7.0057e-09 au
tp 2457613.849425516762
(2016-Aug-13.34942552)
3.824e-06 TDB
node 27.06518847205412 4.7469e-06 deg
peri 174.4506577045543 5.9666e-06 deg
i 5.879434109753054 1.9173e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      5245  
   # 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      .21552  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-14 05:24:19  

Additional Information
 Jupiter MOID = 1.20745 au 
 T_jup = 3.286 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.998728701412736E-18 -2.060665110535637E-17 -3.384990725675835E-15 -4.637568772075681E-15 2.032917384957805E-15 2.798611605050524E-16
q -2.060665110535637E-17 4.908026634099516E-17 4.211755835841083E-15 1.109060481595657E-14 -4.842619411082947E-15 -5.500176377792807E-16
tp -3.384990725675835E-15 4.211755835841083E-15 1.462310045494764E-11 -1.404103869455761E-12 9.826396613850335E-12 -1.357561413904977E-13
node -4.637568772075681E-15 1.109060481595657E-14 -1.404103869455761E-12 2.253301548312531E-11 -2.394207555252485E-11 8.593690854020964E-14
peri 2.032917384957805E-15 -4.842619411082947E-15 9.826396613850335E-12 -2.394207555252485E-11 3.560074111250552E-11 2.259278181258307E-14
i 2.798611605050524E-16 -5.500176377792807E-16 -1.357561413904977E-13 8.593690854020964E-14 2.259278181258307E-14 3.676163392228521E-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 1.23002328619405 1.23002313267983 1.23002343970835 3.88323273003167 3.70165505227068 2416661.707777260 0.0740718044750335 19.7411876380615 3.41570211124586 71.6344817927901 20321741.1189338 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
1906-Jun-03 08:13 < 00:01 Earth 0.375360913005849 0.375360047227381 0.375361778784359 18.7670462920447 18.7666680482942 2417364.842243585 0.0802545699555468 43.4878110139199 3.35076520343932 6.93155566439975 2074938.27176716 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
1917-Jun-07 23:36 < 00:01 Earth 0.42075854862787 0.420758283330512 0.420758813925229 20.4999602554869 20.4996513471271 2421387.483156289 0.023122003968267 13.49020210667 3.21249346702645 11.6310645229201 5290375.28627489 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
1928-May-28 05:40 < 00:01 Earth 0.258599808845021 0.258598526441249 0.258601091249012 15.7975324179505 15.7968801832998 2425394.736206666 0.143162430796646 65.0711053084774 3.0206908956875 10.6833001326011 2100290.38733432 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
1939-May-17 01:57 < 00:01 Earth 0.135639519190089 0.13563757059679 0.135641467785709 11.8973193497466 11.8956681214026 2429400.581470282 0.333579145864881 101.128579382596 2.57247921584638 16.1123688694877 1882827.6749363 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
1950-May-30 00:03 < 00:01 Earth 0.308902815286618 0.308900991067947 0.308904639505501 16.777018676678 16.7765045355371 2433431.501823366 0.190226007081338 91.848333644672 2.90728916787065 7.96414032306817 1935365.68776946 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
1952-Feb-26 08:22 < 00:01 Jupiter 1.23150127145197 1.23150104484374 1.23150149806026 3.94174635652007 3.763212846837 2434068.848310261 0.133629854430788 21.5107005999679 3.13649103452638 -62.590175320587 27687971.6951702 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
1999-Nov-29 14:37 < 00:01 Jupiter 1.65752058642048 1.65752007059601 1.65752110224496 5.2163656745753 5.1174637527002 2451512.108812290 0.0668850917437021 25.8273022206622 5.56023682846745 -17.5396021863035 7813320.01984324 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2009-Mar-12 01:47 < 00:01 Earth 0.179453436939965 0.179453037658184 0.179453836221787 11.8905432888485 11.8892945210715 2454902.574584048 0.0620050692420755 20.3688813549617 2.45079160318691 -12.2945676191873 2187594.55951608 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2011-Feb-18 01:06 < 00:01 Jupiter 1.42903655868588 1.4290361850202 1.42903693235155 4.49932634191823 4.36560327783504 2455610.545596443 0.0306222573233512 20.9370696523595 4.54729698059584 33.8462065897704 11755359.1849219 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2020-Apr-29 09:56 < 00:01 Earth 0.0420484954465151 0.0420484772813759 0.0420485136116542 8.70158481077194 8.69429954533609 2458968.913767725 0.00644818974882486 1.9684800062091 0.905289001085928 -89.25233296757 6208170.11527261 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2031-May-18 06:56 < 00:01 Earth 0.127113862566205 0.127113490818394 0.127114234314145 11.5959280118968 11.5941202227083 2463004.788784442 0.0709000615118228 19.6091466104954 2.67520741971238 19.2340954208602 2158408.5327384 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2042-May-30 22:47 < 00:01 Earth 0.26500859080131 0.265007989136119 0.265009192466545 15.8584562332297 15.8578222172884 2467035.449200345 0.070649548013613 30.5594766738879 3.06614147937547 11.0229919988525 2389304.46694846 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2058-Dec-04 04:25 < 00:01 Jupiter 1.19951073410442 1.19951066640318 1.19951080180566 3.87296966998804 3.68613809488948 2473066.683779871 0.0721324220185299 13.5811957883626 1.77118947050867 -79.3243976347788 32655582.8246066 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2068-Feb-28 15:25 < 00:01 Earth 0.334591700253371 0.334590794523017 0.334592605983763 17.0704763975646 17.070009891294 2476440.142259832 0.0899803177372584 45.5502781988755 2.55771944159114 -7.48254347447704 2359352.15467271 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2079-Apr-16 13:31 < 00:01 Earth 0.0118494678169259 0.0118494365298326 0.0118494991118575 8.16985956386731 8.14228984637069 2480505.063079911 0.339947147925897 20.3212137478301 1.02997101739186 86.687315795227 1749333.11245527 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2079-Apr-16 14:37 < 00:01 Moon 0.00919251872144278 0.00919248767033672 0.00919254978142931 7.26821405618875 7.26772351983944 2480505.109358422 0.352823511897441 19.2425597132681 1.03675292654525 86.5674938011588 1325119.57684307 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2090-May-17 12:09 00:04 Earth 0.114956160756097 0.11493489544034 0.114977426651157 11.1407967390542 11.1387160632747 2484554.006463628 4.32996438150753 1135.8422526216 2.72485570933161 21.0141567718884 1946774.84794276 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2101-Jun-10 21:27 00:03 Earth 0.405314087005614 0.405281841900441 0.405346332152835 19.8490103003076 19.848679104047 2488595.393579405 2.91789484151287 1621.05797796877 3.52533888994286 7.30460409216916 1912288.41634314 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2106-Oct-16 06:49 00:02 Jupiter 1.80431073427655 1.80430015234903 1.80432131620233 5.73519501792207 5.65274926581713 2490548.783733559 2.21909415084456 519.906732933087 5.58905337133578 -10.9579157134044 4156633.72268141 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2118-Jan-22 04:03 00:03 Jupiter 1.27970563245033 1.27969948593791 1.27971177899032 4.09768237024826 3.93283913875398 2494664.668480111 2.71251044840414 430.622402991582 3.48651007416472 49.0962493344182 16514562.0685669 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2127-Apr-16 14:51 00:16 Earth 0.0167849081212812 0.0167797761127899 0.0167900584867111 8.0359101661037 8.0161316775213 2498036.118478269 15.778302915149 913.128351382731 0.951761527690634 73.6958104180364 2612694.78158711 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2138-May-20 22:04 01:51 Earth 0.120797718506475 0.120240879746713 0.121354969840019 11.3703679521256 11.3684278876734 2502088.419461014 110.723725543512 29925.6279493783 2.86392029378644 21.8573825583216 2016419.43308187 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2149-Jun-05 08:37 01:29 Earth 0.283860767641117 0.283021592919112 0.284700053873205 16.4834871376237 16.4829176747803 2506121.858927410 89.1866301012274 42779.1272848072 3.37899373359882 11.9792741158119 2241090.45331353 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2165-Nov-21 06:14 01:03 Jupiter 1.34111685932392 1.3409449859527 1.34128873976435 4.29336449219601 4.14364800236969 2512134.759652565 63.482992804497 9897.15865489684 4.06797468485208 -37.1350138317842 12969516.5829055 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2175-Mar-09 16:06 01:48 Earth 0.260600120259143 0.259602621374849 0.261597696259934 14.6645934017295 14.663896168554 2515530.170781892 108.246324771318 50242.9761794506 2.41611356149282 -8.10938713580326 1903588.31323022 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2177-Mar-02 19:39 01:07 Jupiter 1.68933190812336 1.68903490945175 1.6896289103863 5.35845979649247 5.26405750892195 2516254.318820007 66.9816166724656 15320.9073839705 4.68114504095445 21.6882496625581 9360740.89370564 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2186-May-27 16:56 02:10 Earth 0.182392310524845 0.181499146397903 0.18328588342661 13.0371055941159 13.0359850129635 2519627.205621060 130.066001925667 46583.2153694396 3.12051038959595 17.0101929473015 2159445.77908837 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
2197-Jun-18 12:30 00:48 Earth 0.47266755245873 0.472112336694562 0.473222776184327 22.0373777939783 22.0371219947852 2523667.020770864 47.74024905984 27855.0413582338 3.88386023753008 6.31247027520226 1772526.71947418 T 307 CATAB v2.0f-lin.ifort 2020-Nov-14 05:24:31 2020-Nov-14 05:24
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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