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(2011 MD)
Classification: Apollo [NEO]          SPK-ID: 3568303
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]
Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2455754.5 (2011-Jul-12.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04133045024131937 8.0994e-08  
a 1.059873194655385 8.9095e-08 AU
q 1.016068158321572 3.3059e-09 AU
i 2.572392518674944 2.5015e-06 deg
node 274.0242529904775 2.9213e-06 deg
peri 4.676776896462809 1.7825e-05 deg
M 10.08028653034345 1.8708e-05 deg
tp 2455743.340373335569
(2011-Jun-30.84037334)
1.9924e-05 JED
period 398.5467662156106
1.09
5.0254e-05
1.376e-07
d
yr
n .9032816987034412 1.139e-07 deg/d
Q 1.103678230989197 9.2777e-08 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 7.206155623169125E-11 2.261E-11
A2 [EST] -1.126680717053938E-12 2.91E-12
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      528  
   data-arc span      967 days (2.65 yr)  
   first obs. used      2011-06-21  
   last obs. used      2014-02-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      1  
   fit RMS      .4537  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-07 14:41:39  

Additional Information
 Earth MOID = .000330818 AU 
 T_jup = 5.810 
 Nongravitational accels. using nonstandard g(r) = (1 AU/ r)^2 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 28.0 mag n/a MPO254804  
rotation period rot_per 0.1937 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Published Reference List:
[Ryan, W. (2011) http://infohost.nmt.edu/~bryan/research/work/ mro_images/]
[Skiff, B.A. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html]

[ 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
1939-Jun-09 23:08 04:13 Earth 0.438019826072819 0.370971217836419 0.507470086994308 13.47701626039 13.4765648909947 2429424.463574450 252.745938725004 3618163.04463915 7.31098842311378 -0.327322298123849 38583.4182786515 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
1940-Jun-21 19:12 13:51 Earth 0.147027499422635 0.00295251986674078 0.232485562810849 5.10129409405977 5.09774036165502 2429802.299671332 831.181987939259 3271988.51713227 6.71818263626223 -0.427053195105007 9202.85930946345 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
1941-Sep-14 09:14 1_05:06 Earth 0.123974095554956 0.0240574896749133 0.215109019868457 3.96678066570493 3.96135890785946 2430251.884774955 1745.68660117205 3301967.95670278 2.04188835242973 11.2535465905516 591388.692071061 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
1961-Jun-10 12:23 00:28 Earth 0.383789924380492 0.373025703004861 0.39459884057286 11.9031030994571 11.9025198300029 2437461.015650555 28.3873951795151 558448.528137692 4.78812451987675 -0.854161828252762 129156.431832901 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
1962-Jun-24 08:22 02:50 Earth 0.0890744797257786 0.0704244652800447 0.105307580035395 3.51678017391415 3.5082640888049 2437839.848786281 170.429847142977 412915.315232775 4.66758382000175 -0.666819233604236 8626.15014599646 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
1963-Sep-18 02:15 01:52 Earth 0.169787831184756 0.152347669236362 0.186655544082019 5.39170789005301 5.38879652469672 2438290.593559626 112.010774869664 662582.102060236 2.1908665858642 8.61171662286119 753248.01921451 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
1964-Sep-27 14:27 00:15 Earth 0.448681494446999 0.432159102204091 0.465367180285813 13.6875296289011 13.6870957625095 2438666.101869492 15.2000484361002 888431.281182475 4.13197760743493 4.20633701393499 922474.217361255 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
1984-Jun-09 08:51 00:03 Earth 0.33598101956048 0.335769243894594 0.336192792929425 10.4939890354576 10.4932332950466 2445860.868554051 3.29468695526037 10346.3296401706 3.57711696443868 -4.24729380293904 711672.812881094 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
1985-Jun-24 11:43 00:08 Earth 0.0565431750661284 0.0553948969040888 0.0576755624333116 2.64160564366399 2.62370626079165 2446240.988526638 8.25714288263279 19384.00499697 1.92073835711874 -1.59391461750474 24923.4102264461 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
1985-Dec-29 12:03 11:12 Earth 0.0496432062718117 0.0494573209429927 0.0498442784212842 1.76937391873459 1.73877511170565 2446429.002082472 672.014921250199 6514.41726517572 1.23001363086526 -84.250032415498 937243.472942233 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
1986-Sep-20 01:39 00:08 Earth 0.165934696672785 0.164887176402392 0.166980020284803 5.26257047872668 5.25951834763588 2446693.569023626 8.26853483614156 40108.911968659 2.18872370190606 8.97932633506882 753068.080112815 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
1987-Sep-27 11:00 00:02 Earth 0.412069339678607 0.411078555897723 0.413060729875691 12.6120595354549 12.6115468336217 2447065.958608126 1.68264264683054 52773.4800270692 3.46917307748405 4.52531167930931 1048813.33340889 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
2009-Jun-01 02:30 < 00:01 Earth 0.488612464101182 0.488598332591032 0.48862659571159 14.9033305677485 14.9029646615115 2454983.604355352 0.0300847764138738 753.489797292715 0.883776125908924 -1.28530216000996 1480600.45777055 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
2010-Jun-11 21:07 < 00:01 Earth 0.242334095967498 0.242328492690233 0.242339699227041 7.77228530470204 7.77087052562519 2455359.379846024 0.0288926089566775 255.914343227682 0.610154553539867 -1.71454073472918 1009775.41272689 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
2011-Jun-27 17:01 < 00:01 Earth 0.000124676894745548 0.000124676410681358 0.000124677378810498 6.70253638737239 1.47710626321136 2455740.208711219 0.00069787246206057 0.0071358806650416 0.00507573022390321 -1.69312801814366 658991.95130523 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
2011-Jun-28 07:46 < 00:01 Moon 0.00203686174421681 0.00203686029863122 0.00203686318980248 3.19707398217631 3.19203727428008 2455740.823303486 0.00101173822481393 0.0726901787592688 0.0707453546773892 -34.2092667700475 3374375.66484142 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
2023-May-10 12:22 < 00:01 Earth 0.358280847401349 0.358106837945554 0.358454867703807 11.4217023167665 11.4210511828667 2460075.015521018 0.993066783682697 8945.86686143531 2.6208539419536 2.39223900223021 608578.957682873 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
2024-Feb-04 14:16 02:22 Earth 0.106278232197007 0.106259068379655 0.106297468802672 2.3261637146215 2.31536088880386 2460345.094718996 142.246889566762 915.302394209889 1.12007339875365 77.7136174470893 2828964.14414403 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
2024-Aug-10 04:54 00:02 Earth 0.150308346247219 0.150090747861264 0.150525799370252 5.27743355830285 5.27407351587435 2460532.704418128 2.14666819620176 7741.7477522311 2.07039071329329 -6.42630623991525 517254.341371908 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
2036-May-23 09:13 00:12 Earth 0.114062862190705 0.113440447663909 0.114683217922042 4.31718916564338 4.31177490166162 2464836.884203016 11.5760247748192 18413.2714294454 1.91408962585935 4.81420991400906 266971.842687315 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
2036-Nov-11 18:05 07:35 Earth 0.0977634460131806 0.0977004085769727 0.0978274772758135 2.13556155611565 2.12276104557923 2465009.253611487 455.376983019986 2977.09462657917 2.4139182136458 -78.5129896103086 1115097.61604127 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
2037-Aug-23 21:50 00:01 Earth 0.388253158757019 0.387673945864841 0.388832499314063 12.2439856688583 12.2434251574102 2465294.409499963 1.37555920638281 30026.0123949541 1.87411459826955 -3.30323056422365 1317284.29056405 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
2049-Jun-12 19:39 00:43 Earth 0.0138807452608042 0.0136928304138715 0.0140680424529322 1.76548223630655 1.6531840187226 2469605.318731418 43.0544516898131 1565.09009929092 6.36420535890035 6.11139780448744 4439.91796559082 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
2049-Oct-01 02:08 01:54 Earth 0.0597181558076828 0.0595772633969033 0.0598605811660247 0.775836430127879 0.716021658126182 2469715.589149971 113.981392770794 2026.68291283478 0.735772040029493 16.2898080123481 227907.080143724 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
2050-Aug-26 12:12 00:04 Earth 0.322147947311723 0.320259595078607 0.324038779852387 10.084565757843 10.0837455622198 2470045.007994298 4.03578212536296 98636.3994923565 9.48018146147107 -5.65504571131882 335457.514093888 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
2066-May-08 09:37 00:50 Earth 0.482832397843976 0.450817233690416 0.515381088591155 14.8598705129249 14.8594991433204 2475778.900519740 50.0742827284565 1722220.60854139 10.6560375287397 1.8277466974773 172364.941929333 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
2067-May-24 15:38 05:20 Earth 0.128967662706339 0.0905840540476208 0.16152158056427 4.59316264436706 4.58866243718649 2476160.151602583 319.492767658764 1100781.48914608 11.6620319273945 3.80805277861047 41326.4992387829 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
2068-Aug-18 12:41 04:00 Earth 0.197083752617009 0.165361608922625 0.227490529858154 6.37088280298808 6.36876036863906 2476612.028166251 240.072711097095 1290736.57314635 8.90106396893113 -6.29125108916708 179448.29441914 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
2085-May-11 14:03 01:56 Earth 0.357209887610423 0.313300626946529 0.401895173103543 11.2014581971486 11.2007922692155 2482722.085251655 116.279962001913 2282542.02451638 13.3728226077611 2.17067003287563 106824.247240935 T 40 CATAB v2.0c-linF95 2014-Apr-07 14:41:44 2014-Apr-07 14:41
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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