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(2011 DR)
Classification: Amor [NEO]          SPK-ID: 3557828
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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Orbit Diagram
[ switch to new HTML5 viewer ]

Note: This Java-based orbit viewer will eventually be retired.

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 two-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 is not working, here are some notes that might help.
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 2455617.5 (2011-Feb-25.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1324939126467949 0.00060509  
a 1.182270207016066 0.0009748 au
q 1.025626601482771 0.00013027 au
i 10.58432916725691 0.037434 deg
node 152.138326555214 0.00076783 deg
peri 7.22144285766049 0.017993 deg
M 357.18767646002 0.010008 deg
tp 2455621.168059117671
(2011-Feb-28.66805912)
0.017328 TDB
period 469.5410266952918
1.29
0.58072
0.00159
d
yr
n .7667061652391488 0.00094824 deg/d
Q 1.33891381254936 0.001104 au
  Orbit Determination Parameters
   # obs. used (total)      21  
   data-arc span      7 days  
   first obs. used      2011-02-23  
   last obs. used      2011-03-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .43944  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:54:24  

Additional Information
 Earth MOID = .0373314 au 
 Jupiter MOID = 3.63157 au 
 T_jup = 5.330 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 3.661355988788125E-7 7.882224470210396E-8 1.003699166639002E-5 -4.600170516900985E-7 1.042996078903327E-5 2.264975357646416E-5
q 7.882224470210396E-8 1.696972062775258E-8 2.157562691572201E-6 -9.896715206899979E-8 2.242062632074251E-6 4.876424045055198E-6
tp 1.003699166639002E-5 2.157562691572201E-6 .0003002586632872153 -1.313050822930529E-5 .0003117840074445571 .0006189388234735488
node -4.600170516900985E-7 -9.896715206899979E-8 -1.313050822930529E-5 5.895602814934644E-7 -1.364062970425571E-5 -2.841489895205346E-5
peri 1.042996078903327E-5 2.242062632074251E-6 .0003117840074445571 -1.364062970425571E-5 .0003237545099230956 .0006431868877204175
i 2.264975357646416E-5 4.876424045055198E-6 .0006189388234735488 -2.841489895205346E-5 .0006431868877204175 .001401340766200874

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 25.8   n/a MPO193822  

[ 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
1903-Mar-20 01:08 2_12:35 Earth 0.486046339333602 0.240052927155772 0.741540618938662 14.8849932014538 14.8846249101941 2416193.547211456 3634.66718086574 12956792.2938589 129.372399241487 -12.9886240249837 434417.333602695 T 8 CATAB v2.0e-lin.ifort 2017-Nov-28 23:43:14 2018-Dec-11 15:37
1907-Feb-10 21:07 1_07:52 Earth 0.363681530892919 0.163839991107472 0.563709348702029 12.4602685921952 12.4596805967615 2417617.380179128 1912.34960125513 9978379.77054271 114.62816711553 2.0715593709097 12615.1531714215 T 8 CATAB v2.0e-lin.ifort 2017-Nov-28 23:43:14 2018-Dec-11 15:37
1907-Oct-06 01:18 8_18:49 Mars 0.0403766979418677 0.0395200774245554 0.0997848187574379 5.54607170583527 5.54479309031276 2417854.554505942 12648.822786467 4158459.82896938 404.4558454837 -78.2347633654119 12037.4082112685 T 8 CATAB v2.0e-lin.ifort 2017-Nov-28 23:43:14 2018-Dec-11 15:37
1916-Feb-15 14:28 1_09:06 Earth 0.219510129973756 0.126248311948167 0.31278550286155 8.97871090334673 8.97735890394203 2420909.102687978 1985.9856804608 4651723.09250752 134.531516486846 1.35709944948785 4542.91162199303 T 8 CATAB v2.0e-lin.ifort 2017-Nov-28 23:43:14 2018-Dec-11 15:37
1920-Sep-16 14:53 2_21:51 Earth 0.337682003935948 0.336674231642915 0.33926381827914 7.21300099524936 7.21190698501548 2422584.120140873 4190.97219880928 697626.869088077 1240.34343709405 -84.6874691099027 33125.1214222717 T 8 CATAB v2.0e-lin.ifort 2017-Nov-28 23:43:14 2018-Dec-11 15:37
1925-Feb-19 03:06 22:38 Earth 0.0990601037414898 0.0758453131374167 0.122338450164267 6.65681431981957 6.65277248090408 2424200.629474309 1358.26055205135 1165950.08107061 423.709415150976 -6.1849421767894 2931.30387813408 T 8 CATAB v2.0e-lin.ifort 2017-Nov-28 23:43:14 2018-Dec-11 15:37
1934-Feb-21 16:06 4_18:51 Earth 0.0437107022197738 0.0331060175953364 0.137324564588228 5.93338346012251 5.92310096211995 2427490.170949738 6890.87178535192 5224387.64245075 291.089116789971 -49.2947921975005 18853.9674186618 T 8 CATAB v2.0e-lin.ifort 2017-Nov-28 23:43:14 2018-Dec-11 15:37
2002-Feb-23 08:49 7_18:01 Earth 0.0450361509397937 0.0283377093211474 0.190967624904978 5.78039145320875 5.77014723437124 2452328.867316704 11160.6361561844 7673667.87890939 382.231970812059 39.0527489500282 8469.77867600774 T 8 CATAB v2.0e-lin.ifort 2017-Nov-28 23:43:14 2018-Dec-11 15:37
2011-Feb-22 22:28 00:03 Earth 0.0375231873103502 0.037108157773067 0.037938178391903 5.81645962035925 5.80423851716885 2455615.436393165 2.75145117988677 20607.8307254271 419.587704201261 0.426745471282917 153.406620095781 T 8 CATAB v2.0e-lin.ifort 2017-Nov-28 23:43:14 2018-Dec-11 15:37
2013-Jan-28 13:34 2_17:59 Mars 0.0675934755085088 0.0508891309679578 0.0947136191955932 5.56927706731502 5.56851650948753 2456321.065546419 3958.71028870151 1735597.57109495 2243.71298475417 -47.3087134761169 3206.39668637934 T 8 CATAB v2.0e-lin.ifort 2017-Nov-28 23:43:14 2018-Dec-11 15:37
2020-Feb-23 00:16 7_11:23 Earth 0.0375999861648339 0.0375851145390818 0.165870937538146 5.82679494605312 5.81462050927295 2458902.511247272 10762.8260903042 8011301.8421224 125.311491720222 -88.5390315992687 43002.8727604342 T 8 CATAB v2.0e-lin.ifort 2017-Nov-28 23:43:14 2018-Dec-11 15:37
2093-Dec-19 21:28 2_08:11 Mars 0.0588952351206957 0.0045089153119936 0.217991807021839 5.58828082001548 5.58741089542097 2485866.394350349 3370.70632867897 7939990.33665314 3337.47291827209 -4.45989019912491 202.87544583618 T 8 CATAB v2.0e-lin.ifort 2017-Nov-28 23:43:14 2018-Dec-11 15:37
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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