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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 316 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5736751593913266 3.0258e-09  
a 2.3833537684512 3.3145e-09 au
q 1.016082915449039 6.9762e-09 au
i 5.87036489556614 1.9064e-06 deg
node 26.95326289746896 4.7266e-06 deg
peri 174.5685368791312 5.9346e-06 deg
M 118.1492429122289 7.4097e-07 deg
tp 2458955.427851275657
(2020-Apr-15.92785128)
2.6203e-06 TDB
period 1343.944062838581
3.68
2.8035e-06
7.676e-09
d
yr
n .2678682915118015 5.5878e-10 deg/d
Q 3.75062462145336 5.216e-09 au
  Orbit Determination Parameters
   # obs. used (total)      5328  
   # 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .22053  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-14 05:53:17  

Additional Information
 Earth MOID = .0142947 au 
 Jupiter MOID = 1.20555 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 1.23002326214624 1.23002310937917 1.23002341491338 3.88323223921747 3.70165453477117 2416661.707792136 0.073996519854982 19.6654621515013 3.40045231101868 71.6660361747578 20449897.3600682 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
1906-Jun-03 08:13 < 00:01 Earth 0.375361197889837 0.375360332948759 0.375362062830937 18.7670540430186 18.7666757997112 2417364.842260183 0.0801708519833632 43.4457165881288 3.33841270814424 6.93109097419709 2080886.32817655 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
1917-Jun-07 23:36 < 00:01 Earth 0.420758198001548 0.420757931797585 0.420758464205535 20.4999494228657 20.4996405140852 2421387.483132877 0.0232177835345381 13.5326473976756 3.20473031426579 11.5469877868005 5271447.78811745 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
1928-May-28 05:40 < 00:01 Earth 0.258598888319287 0.258597604337679 0.258600172301116 15.7975040629765 15.7968518248332 2425394.736134848 0.143338705177277 65.1508434995939 3.00938331022022 10.6816740640336 2107269.95887496 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
1939-May-17 01:57 < 00:01 Earth 0.135638289888673 0.135636339681252 0.135640240098423 11.8972797970962 11.8956285482952 2429400.581321295 0.333854305653636 101.21227067968 2.56249371098613 16.1121636489896 1890062.12735374 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
1950-May-30 00:03 < 00:01 Earth 0.308901783325118 0.308899958148655 0.308903608501791 16.7769871259409 16.7764729821153 2433431.501746640 0.190314371867464 91.8966986674969 2.89635468879996 7.96473801101108 1942390.2360076 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
1952-Feb-26 08:22 < 00:01 Jupiter 1.23150117742351 1.23150095097617 1.23150140387092 3.94174584315164 3.76321229616825 2434068.848272303 0.13362626158252 21.4785526941795 3.11688717681688 -62.5496643476012 27847535.412039 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
1999-Nov-29 14:37 < 00:01 Jupiter 1.65752048050737 1.65751996651407 1.65752099450066 5.21636494884545 5.11746300711552 2451512.108827649 0.0667801410117045 25.7345423543886 5.51843551419975 -17.5195033079809 7862607.08498786 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2009-Mar-12 01:47 < 00:01 Earth 0.179453447090286 0.179453047839074 0.179453846341538 11.890543066666 11.8892942989361 2454902.574586568 0.061973264600811 20.3679284324606 2.4335489639461 -12.301232514763 2200335.74188931 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2011-Feb-18 01:06 < 00:01 Jupiter 1.42903661775787 1.42903624580641 1.42903698970933 4.49932637411346 4.36560331737886 2455610.545601949 0.0305672503396466 20.8403934811164 4.51278391984952 33.8453452996653 11835114.9976264 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2020-Apr-29 09:56 < 00:01 Earth 0.0420484956053688 0.0420484774869768 0.0420485137237609 8.70158480517347 8.69429953975916 2458968.913767810 0.00642516989736262 1.96040543397892 0.902986236212283 -89.2851505183781 6227381.97667928 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2031-May-18 06:56 < 00:01 Earth 0.127113727610419 0.127113355885077 0.127114099335891 11.5959236210296 11.5941158292366 2463004.788766796 0.0708796083815734 19.6077523468911 2.66478653015565 19.2308616519897 2165461.88102651 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2042-May-30 22:47 < 00:01 Earth 0.26500841734052 0.265007815782738 0.265009018898362 15.8584507728463 15.8578167562716 2467035.449185715 0.0706116781708377 30.5540799035227 3.05444859151487 11.0231458638588 2396619.75130258 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2058-Dec-04 04:25 < 00:01 Jupiter 1.19951068780186 1.19951062026863 1.19951075533509 3.87296942135157 3.68613782731448 2473066.683784931 0.0719549856016828 13.5263094595917 1.76279860883324 -79.2917815517022 32818597.1727103 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2068-Feb-28 15:25 < 00:01 Earth 0.334591894039817 0.334590988282692 0.33459279979698 17.0704825968023 17.0700160909712 2476440.142245867 0.0899570871102849 45.5522613431724 2.53967220249588 -7.48849295264835 2375086.75565241 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2079-Apr-16 13:31 < 00:01 Earth 0.0118494753994085 0.0118494441837038 0.0118495066229932 8.16985925732561 8.14228955645786 2480505.063004429 0.340075286687458 20.3288616345356 1.02459393975054 86.6886677072342 1758665.90910197 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2079-Apr-16 14:37 < 00:01 Moon 0.00919252617394954 0.00919249519212939 0.00919255716470085 7.26821183294959 7.26772129684268 2480505.109280081 0.352956343208545 19.2497871575938 1.03129834610368 86.5680677400144 1332154.82959046 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2090-May-17 12:08 00:04 Earth 0.114949247130424 0.11492797363127 0.114970521209382 11.1405773086364 11.1384964667104 2484554.005487238 4.33183011424307 1136.28203911559 2.71429748891815 21.0145090693051 1954284.29744383 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2101-Jun-10 21:26 00:03 Earth 0.405303602494386 0.405271344082858 0.405335860948005 19.8487024562726 19.8483712463075 2488595.392921334 2.91912003097849 1621.72742295223 3.51249762493611 7.30474057787083 1919252.06993971 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2106-Oct-16 06:48 00:02 Jupiter 1.80430703149603 1.80429644509499 1.80431761789522 5.73518217186319 5.65273606242732 2490548.783255055 2.22003129736493 520.126983447413 5.5469268265781 -10.9585307933667 4187943.83025757 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2118-Jan-22 04:02 00:03 Jupiter 1.27970773023699 1.27970158015489 1.27971388034666 4.09768810169379 3.93284538724519 2494664.667893630 2.71405390059367 430.86495814683 3.46002400247831 49.095014382642 16640193.7775671 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2127-Apr-16 14:46 00:16 Earth 0.0167865468889088 0.0167813978748552 0.0167917142767133 8.03592098004784 8.01614445137525 2498036.114993369 15.7887914822731 913.79280389137 0.947061891943154 73.652571833886 2625487.94143061 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2138-May-20 21:29 01:51 Earth 0.120620562878639 0.120063802571213 0.121177736895383 11.3646470404179 11.3627031481246 2502088.394992852 110.844794789103 29924.6784163511 2.85175590406037 21.8728422933096 2023519.00159977 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2149-Jun-05 08:08 01:29 Earth 0.283593953907553 0.282755392339828 0.284432627153902 16.4753237371257 16.4747534560653 2506121.839232116 89.1663517783799 42749.7460051141 3.3653881015865 11.9910924955428 2250120.31940958 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2165-Nov-21 05:54 01:03 Jupiter 1.34106199703628 1.34089042921305 1.34123357190817 4.29318607998088 4.14345690862928 2512134.745664472 63.3778328559874 9880.30864006688 4.03896789370551 -37.1402408448307 13054752.6504038 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2175-Mar-09 15:32 01:48 Earth 0.260916931036009 0.259921493361444 0.261912445313859 14.674360034909 14.6736641118558 2515530.146919318 107.934045650343 50138.4891116366 2.39946141396601 -8.10407112821426 1918001.48728854 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2177-Mar-02 19:18 01:07 Jupiter 1.68942665016315 1.68913027174701 1.68972303215469 5.35877214292083 5.26438079813353 2516254.304085451 66.8350149091944 15288.8073051094 4.64942955646048 21.6860965521639 9423982.17133004 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2186-May-27 16:15 02:10 Earth 0.182108606946073 0.18121762156913 0.183000000666721 13.0281075747206 13.026984472545 2519627.176921499 129.90526666647 46474.1131001103 3.10735941077881 17.0284159934402 2167415.11162306 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
2197-Jun-18 12:15 00:48 Earth 0.472491464476226 0.471938142954031 0.473044793920224 22.0321854511232 22.0319294962907 2523667.010256811 47.58286247773 27760.2540003251 3.86922400648353 6.31707566277398 1779798.45637905 T 316 CATAB v2.0g-lin.ifort 2021-May-14 05:53:34 2021-May-14 05:53
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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