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(2011 MD)
Classification: Amor [NEO]          SPK-ID: 3568303
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03708572575245402 1.3506e-07  
a 1.056305236498722 1.4511e-06 au
q 1.017131390187049 1.5291e-06 au
i 2.445412363510375 4.7943e-06 deg
node 271.5901049790291 1.8243e-05 deg
peri 5.974515945440755 0.00011877 deg
M 77.93710108892674 0.0028214 deg
tp 2459310.653158090726
(2021-Apr-06.15315809)
0.0029313 TDB
period 396.5359585555515
1.09
0.00081709
2.237e-06
d
yr
n .9078621805481657 1.8707e-06 deg/d
Q 1.095479082810395 1.5049e-06 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 7.439034215047371E-11 2.478E-11
A2 [EST] -8.855640706196125E-13 3.787E-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .33318  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 05:09:42  

Additional Information
 Earth MOID = .00099071 au 
 Jupiter MOID = 3.89285 au 
 T_jup = 5.826 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455755.5 (2011-Jul-13.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0410595227508973 1.2579e-07  
q 1.016063956459619 3.9296e-09 au
tp 2455743.271190832585
(2011-Jun-30.77119083)
2.3339e-05 TDB
node 273.9597202104457 4.9451e-06 deg
peri 4.674799760516421 1.9658e-05 deg
i 2.562404499994056 4.4106e-06 deg

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 7.439034215047371E-11 2.478E-11
A2 [EST] -8.855640706196125E-13 3.787E-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .33318  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 05:09:42  

Additional Information
 Jupiter MOID = 3.89285 au 
 T_jup = 5.826 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
Orbit Covariance (8×8)
  e q tp node peri i A1 A2
e 1.582270937634561E-14 -5.537888123864263E-17 2.033359984283123E-12 5.807340876110913E-13 1.425893567376189E-12 5.328277008382144E-13 4.828402261792239E-19 -3.795693398429964E-19
q -5.537888123864263E-17 1.544178005940155E-17 -4.773297052987453E-14 -4.191724258769993E-15 -4.263460731805589E-14 -3.262469071056906E-15 -9.430402554234142E-20 9.198704617887167E-21
tp 2.033359984283123E-12 -4.773297052987453E-14 5.447150137386845E-10 8.380216676947765E-11 4.520281182730765E-10 7.359320964129282E-11 2.360692233156225E-16 -6.277590496894508E-17
node 5.807340876110913E-13 -4.191724258769993E-15 8.380216676947765E-11 2.445439727097633E-11 5.810009091137231E-11 2.043969454061185E-11 3.198267466883152E-17 -1.517430128227876E-17
peri 1.425893567376189E-12 -4.263460731805589E-14 4.520281182730765E-10 5.810009091137231E-11 3.864447196425886E-10 5.210081711477715E-11 1.995609311589948E-16 -4.666333375945063E-17
i 5.328277008382144E-13 -3.262469071056906E-15 7.359320964129282E-11 2.043969454061185E-11 5.210081711477715E-11 1.945310965453641E-11 2.676856273305335E-17 -1.3733430481424E-17
A1 4.828402261792239E-19 -9.430402554234142E-20 2.360692233156225E-16 3.198267466883152E-17 1.995609311589948E-16 2.676856273305335E-17 6.138316667636704E-22 -6.28100746119437E-23
A2 -3.795693398429964E-19 9.198704617887167E-21 -6.277590496894508E-17 -1.517430128227876E-17 -4.666333375945063E-17 -1.3733430481424E-17 -6.28100746119437E-23 1.43381859600475E-23

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 28.0   n/a MPO254804  
rotation period rot_per 0.1937 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
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-10 02:52 6_16:44 Earth 0.435943007095732 0.345227368510719 0.526863447033757 13.4171137268222 13.4166581822116 2429424.619274187 9643.86918993127 4553177.20531955 249.501830869759 -5.84517796199957 19331.5163832744 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
1940-Jun-22 00:10 8_22:58 Earth 0.144152390520442 0.0183660657099645 0.2690351826945 5.02181134764596 5.01812930038812 2429802.507092541 12897.660545375 6224059.96204316 11.4088640005998 -1.04501579254957 19805.5057732505 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
1942-Sep-28 16:15 3_08:04 Earth 0.419480998081906 0.285639256685362 0.553945599729513 12.8344576027241 12.8339626873807 2430631.177294675 4803.72725500217 6738079.94327836 31.9746288199346 6.54636851270057 147696.735047685 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
1961-Jun-10 12:00 16:20 Earth 0.3841146946741 0.370030184595999 0.398200282576613 11.9123648796445 11.9117825564851 2437461.000157397 980.277991144183 703096.966111842 138.485035029418 -2.72443319796303 13786.2926750278 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
1962-Jun-24 07:26 1_16:20 Earth 0.0895920472979397 0.0671678009671879 0.111979931196682 3.53044786408239 3.5220138921416 2437839.810062126 2419.78898051483 1113658.17412252 16.5758710261359 -1.06986488616228 7998.34509376185 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
1963-Sep-18 01:19 1_16:05 Earth 0.169273227174627 0.147099347415271 0.191651678820211 5.37596779837398 5.3730390251874 2438290.554989182 2404.67077175847 1148957.66319076 19.9867057813904 14.8999421509218 147747.198351127 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
1964-Sep-27 14:10 11:57 Earth 0.448182712182039 0.426579020555962 0.469798646041469 13.6728978557448 13.672463041671 2438666.090297805 717.156358615045 1083906.2587746 27.1723019237854 6.21156235335617 183803.72213238 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
1984-Jun-09 08:49 01:23 Earth 0.335974848944903 0.335700890028728 0.336248829357761 10.4938433189711 10.4930875541842 2445860.867274814 83.1588201913757 14303.9908290274 9.85367767797272 17.2543558352177 1093833.73134565 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
1985-Jun-24 11:47 02:13 Earth 0.0565092066167282 0.0550271402773059 0.0579908376528289 2.64079323363239 2.62287750697867 2446240.990670748 132.59345198922 73474.1811869072 11.5075786046631 -3.09577887652271 23939.4365067492 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
1985-Dec-29 11:36 19:48 Earth 0.0496374171265615 0.0493981936589397 0.0499009545392951 1.76930797532957 1.73870440754344 2446428.983122328 1188.07857834149 56672.6818385349 6.3799569976756 -77.3730993644836 772697.461332112 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
1986-Sep-20 01:43 02:49 Earth 0.165966028659582 0.164606647283414 0.167326235236797 5.26352888517634 5.26047788641315 2446693.571641344 168.982806758599 70275.1738192288 13.9235219829873 15.4625195892102 243322.660752341 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
1987-Sep-27 11:03 01:46 Earth 0.412099111226836 0.410811338735025 0.413386922789597 12.6129527172017 12.6124400887142 2447065.960212734 105.98430369702 64527.9753192629 27.2345348764207 5.67369089518232 152027.674499812 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
2009-Jun-01 02:30 00:01 Earth 0.488611869725488 0.48859376748507 0.488629971979876 14.9033130025271 14.9029470954136 2454983.604365652 1.05655716228833 912.056498505897 38.4887525905582 8.24565332002785 211361.009625831 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
2010-Jun-11 21:07 < 00:01 Earth 0.242333836480218 0.242326713693643 0.242340959266737 7.77227725135287 7.77086246929449 2455359.379859974 0.537853811537527 355.138317869957 9.40791376966049 1.12588641174127 78530.3872130451 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
2011-Jun-27 17:01 < 00:01 Earth 0.000124677014163975 0.000124676064955378 0.00012467796337714 6.70253290527196 1.47710431818534 2455740.208710112 0.00663611399756985 0.296606676190828 0.0504910594239712 -8.37508557340758 346121.586016319 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
2011-Jun-28 07:46 < 00:01 Moon 0.00203686133927242 0.00203685917732959 0.00203686350121531 3.19707317723922 3.19203646701699 2455740.823302915 0.00710578477672296 0.171276313786459 0.106107126813918 -83.0580282153704 1863479.06672511 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
2023-May-10 12:23 00:25 Earth 0.35827614457825 0.358052484037524 0.358499805332835 11.4215616026183 11.4209104521487 2460075.015885124 24.9870499612063 11161.5914451967 69.7658097922045 -2.39274425058559 22224.9165467574 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
2024-Feb-04 14:13 02:19 Earth 0.106279024375982 0.106240858934505 0.106317283439082 2.32619562204322 2.31539302580116 2460345.092686451 138.992542192516 5337.53081708517 6.51235811520077 -69.4610145165911 1381955.46606909 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
2024-Aug-10 04:55 00:23 Earth 0.150314251413486 0.150034102887355 0.150594417378783 5.27760485888992 5.27424505762921 2460532.704743878 22.9059317076155 14201.8287951039 3.12639494271551 -10.6854866921167 732390.385185784 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
2036-May-23 09:16 02:09 Earth 0.114045770272765 0.113239190943685 0.114852473644841 4.31668544308377 4.31126973447191 2464836.886098944 129.222880108045 40659.3794822268 20.7784408531951 9.12282310728913 74466.086244419 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
2036-Nov-11 17:55 08:00 Earth 0.0977598029030129 0.0975887788044779 0.0979314393590207 2.13538730618623 2.1225852663117 2465009.246530265 480.471019231867 14925.8305078717 9.6939771115792 56.1446863380869 599934.83845709 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
2037-Aug-23 21:50 00:34 Earth 0.388269107926689 0.387516826624481 0.389021398463942 12.2444399877574 12.2438795201316 2465294.409993318 34.3062306490177 37632.1151945549 11.2246843150948 -4.61031014699639 299367.819194087 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
2049-Jun-12 19:43 02:56 Earth 0.0138755087634483 0.0136299896303815 0.0141219915046078 1.76544195527881 1.65309717986113 2469605.321323775 175.984640935589 13629.2030235708 42.9766236488267 27.6657829308058 18770.8558549348 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
2049-Oct-01 02:40 1_01:07 Earth 0.0597141756410494 0.0595375279658633 0.0599093548020726 0.77651897574162 0.716757016300691 2469715.611455344 1506.80927868321 60319.1601388586 12.2837825290468 57.6626355490853 52354.7809404363 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
2050-Aug-26 12:09 02:02 Earth 0.322095125659445 0.319615914158185 0.324574811152854 10.0828853623114 10.0820648954495 2470045.006184145 122.378610879851 125166.014279039 23.0925552436603 -9.01550902105242 247115.99523634 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
2066-May-08 08:57 1_07:13 Earth 0.483735410785652 0.44134756894771 0.526135822672381 14.8860382866992 14.8856682619758 2475778.872808469 1872.5969141593 2117596.92289025 568.941270901878 3.36210341470199 5547.07435801723 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
2067-May-24 14:04 3_01:08 Earth 0.129937811919877 0.0846445565355432 0.175615227404258 4.62049467735635 4.616054533359 2476160.086447379 4387.90570607362 2295401.77072152 231.257382050562 8.85301219957553 7513.36808821961 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
2068-Aug-18 11:17 2_17:42 Earth 0.196216636591421 0.155645352652035 0.237113231041536 6.3453825286238 6.34324214325175 2476611.969987512 3942.11982339283 2069965.53357295 19.6095916221763 -11.0379217561369 257073.951406035 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
2085-May-11 15:19 2_11:10 Earth 0.355983064557276 0.299056680812416 0.412924037485405 11.1659146556209 11.1652443054075 2482722.138211752 3549.77491670664 2841325.97555216 588.824299380617 2.41825089348406 2589.39995073264 T 45 CATAB v2.0g-lin.ifort 2021-Apr-15 05:09:47 2021-Apr-15 05:09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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