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(2015 DD54)
Classification: Apollo [NEO]          SPK-ID: 3711171
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4928461948629689 2.9883e-05  
a 1.958201550575455 0.00011544 au
q .9931093675995762 3.8706e-08 au
i .9501653739060751 4.1641e-05 deg
node 349.3237020269872 0.00019641 deg
peri 178.9483035601055 5.934e-05 deg
M 328.0625219233038 0.060922 deg
tp 2459089.293797605354
(2020-Aug-27.79379761)
0.17723 TDB
period 1000.885763777694
2.74
0.08851
0.0002423
d
yr
n .3596814072379586 3.1807e-05 deg/d
Q 2.923293733551334 0.00017234 au
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      69 days  
   first obs. used      2015-01-20  
   last obs. used      2015-03-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .42865  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-10 06:25:29  

Additional Information
 Earth MOID = 9.58802E-5 au 
 Jupiter MOID = 2.05188 au 
 T_jup = 3.725 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457069.5 (2015-Feb-16.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4953478648145639 2.9685e-05  
q .9925650077425895 8.1165e-08 au
tp 2457087.636602056622
(2015-Mar-06.13660206)
3.309e-05 TDB
node 349.5968157086264 0.00016572 deg
peri 178.5277947837325 7.8699e-05 deg
i .9381233241476976 4.3171e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      69 days  
   first obs. used      2015-01-20  
   last obs. used      2015-03-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .42865  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-10 06:25:29  

Additional Information
 Jupiter MOID = 2.05188 au 
 T_jup = 3.725 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.811719608720352E-10 2.318767261872345E-12 9.328522015420049E-10 4.637328075257838E-9 1.539139049381518E-9 1.279015640270332E-9
q 2.318767261872345E-12 6.587810412995402E-15 2.260495389061037E-12 1.253046741727144E-11 3.48582154808875E-12 3.354286025266582E-12
tp 9.328522015420049E-10 2.260495389061037E-12 1.094965269854103E-9 4.788865511875884E-9 1.879264115777709E-9 1.36036740807011E-9
node 4.637328075257838E-9 1.253046741727144E-11 4.788865511875884E-9 2.746389276950784E-8 4.896008894614E-9 6.593648134401329E-9
peri 1.539139049381518E-9 3.48582154808875E-12 1.879264115777709E-9 4.896008894614E-9 6.193554569079291E-9 2.379021307559523E-9
i 1.279015640270332E-9 3.354286025266582E-12 1.36036740807011E-9 6.593648134401329E-9 2.379021307559523E-9 1.863745549008334E-9

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 25.4   n/a MPO335365  

[ 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
1929-Dec-17 03:04 7_15:25 Mars 0.0159697582022754 0.015940687370004 0.100066844240704 14.341198518619 14.339948428486 2425962.628119739 11004.5931088948 4878976.34832664 44.6526992985878 -86.5963414439199 53323.1479442893 T 14 CATAB v2.0e-lin.ifort 2018-May-10 06:25:32 2018-Dec-11 16:34
1935-Mar-08 01:09 1_10:26 Moon 0.00134190435073542 0.000374468426066331 0.00230926478416591 7.76363688575494 7.76049044173195 2427869.547844789 2065.87714225092 48237.6226290012 2.10069873079205 0.241988566688622 4.11461479603676 T 14 CATAB v2.0e-lin.ifort 2018-May-10 06:25:32 2018-Dec-11 16:34
1935-Mar-08 09:13 1_15:03 Earth 0.00123108118106555 0.00122391024866085 0.00146502256368784 6.92324335374469 6.60322775296402 2427869.883827933 2342.80587906914 34294.8317834496 2.4748562324625 -83.9820255464661 72082.5470873074 T 14 CATAB v2.0e-lin.ifort 2018-May-10 06:25:32 2018-Dec-11 16:34
1946-Apr-21 20:38 14:13 Earth 0.158486233909388 0.151836328805142 0.165138257073453 11.9474361637479 11.9460289124093 2431932.359451772 852.807202852788 332912.863479717 7.03380659355094 5.03892222106382 245172.033501274 T 14 CATAB v2.0e-lin.ifort 2018-May-10 06:25:32 2018-Dec-11 16:34
1951-Jun-14 22:19 13:07 Mars 0.0126651287376634 0.00579037792026605 0.0213611882541218 14.5815754602397 14.5800251621355 2433812.429757470 787.21809241356 458417.896368723 10.9088256078919 -24.8013180248056 72433.9735564262 T 14 CATAB v2.0e-lin.ifort 2018-May-10 06:25:32 2018-Dec-11 16:34
1957-May-07 21:24 11:15 Earth 0.3791660231128 0.371708741830433 0.386623323890586 18.8177857246032 18.8174122864096 2435966.391948528 674.818245793479 371889.667383689 8.71705164170295 0.76986274882457 74728.3494909016 T 14 CATAB v2.0e-lin.ifort 2018-May-10 06:25:32 2018-Dec-11 16:34
1971-Apr-29 12:30 02:55 Mars 0.0432799736021527 0.0407584485595242 0.045801945775837 13.6706636176008 13.670179738028 2441071.020498199 174.661908644747 125940.604243008 10.3397683086243 -3.14838467682214 34249.9676680416 T 14 CATAB v2.0e-lin.ifort 2018-May-10 06:25:32 2018-Dec-11 16:34
1982-Jan-08 03:39 13:15 Earth 0.495034637546461 0.484488382208758 0.505580886395091 22.180743271587 22.1805006088735 2444977.652235340 794.624214556368 525891.357774162 4.90969278055682 -0.0338224561645886 6386.39981604622 T 14 CATAB v2.0e-lin.ifort 2018-May-10 06:25:32 2018-Dec-11 16:34
1992-Nov-03 01:34 21:08 Mars 0.0391640848613257 0.0249094714839782 0.053500399215574 13.7737681390866 13.773237408884 2448929.565076955 1267.748324918 718419.148559152 10.952629899305 6.63807047155879 61827.8452818654 T 14 CATAB v2.0e-lin.ifort 2018-May-10 06:25:32 2018-Dec-11 16:34
1993-Jan-21 03:43 1_04:29 Earth 0.254988724152118 0.236889163620688 0.273091772660885 15.0626666377088 15.0619728932655 2449008.654991725 1708.93677958741 903863.164188335 3.04175190829255 -3.02809779730404 561208.121354725 T 14 CATAB v2.0e-lin.ifort 2018-May-10 06:25:32 2018-Dec-11 16:34
2004-Feb-04 03:07 2_00:49 Earth 0.0973921480044574 0.0807684010340192 0.114059065020654 10.0324250126686 10.029697658574 2453039.629516111 2929.09424223413 836311.783228048 1.99307298130783 -7.00280884069651 770694.176683002 T 14 CATAB v2.0e-lin.ifort 2018-May-10 06:25:32 2018-Dec-11 16:34
2012-Sep-11 08:46 06:03 Mars 0.091698971489188 0.0879094048205111 0.0954885709151621 12.8242278419225 12.8239843892092 2456181.865105687 362.666918163788 188990.947378288 10.2501582876775 -0.810798089045405 18865.6804504262 T 14 CATAB v2.0e-lin.ifort 2018-May-10 06:25:32 2018-Dec-11 16:34
2015-Feb-21 18:04 < 00:01 Earth 0.018428663352213 0.0184256563811914 0.018431670317648 7.15475754145818 7.13452091028105 2457075.252462744 0.0146284817910715 149.086898133406 0.89133487561217 -0.376749032011287 10720.9513214733 T 14 CATAB v2.0e-lin.ifort 2018-May-10 06:25:32 2018-Dec-11 16:34
2026-Jan-23 10:07 1_06:04 Earth 0.23536963099655 0.216896190038377 0.25384805545829 14.3907958163265 14.3900091528458 2461063.921431484 1804.45027254526 922901.697243393 2.84997623335958 -3.39860965265925 619948.942573386 T 14 CATAB v2.0e-lin.ifort 2018-May-10 06:25:32 2018-Dec-11 16:34
2028-Jul-31 12:49 1_02:51 Mars 0.0615794112900104 0.0439930488264681 0.0791922069607987 13.3601342821923 13.3597862932156 2461984.034256154 1610.80453943204 879923.12719983 10.9478252149595 3.97017257010368 58446.5024949806 T 14 CATAB v2.0e-lin.ifort 2018-May-10 06:25:32 2018-Dec-11 16:34
2056-May-05 15:47 3_00:35 Earth 0.335389065658664 0.286383516851265 0.384401343786948 17.3039483923666 17.3034892746969 2472124.157667807 4354.819272703 2445024.33531324 8.41319859194394 1.79391349956562 158495.399445482 T 14 CATAB v2.0e-lin.ifort 2018-May-10 06:25:32 2018-Dec-11 16:34
2067-Apr-14 14:27 7_09:48 Earth 0.0748222009701702 0.0280589936679134 0.122477625662473 9.22735398633526 9.2234939130999 2476120.102040643 10668.0293547468 2389241.80124243 6.16753499801855 7.71413889595992 205927.008447745 T 14 CATAB v2.0e-lin.ifort 2018-May-10 06:25:32 2018-Dec-11 16:34
2078-Feb-23 11:06 4_14:56 Earth 0.0131649426364001 0.00442008700041277 0.022486319570275 7.1415607327219 7.1131642507751 2480087.962460097 6655.62701732834 471211.049062345 0.961017876779738 -12.4836486757504 426410.657426577 T 14 CATAB v2.0e-lin.ifort 2018-May-10 06:25:32 2018-Dec-11 16:34
2138-Jan-18 15:02 6_06:37 Earth 0.356938202562267 0.253646798836119 0.460235602427057 18.1176840760951 18.1172720529809 2501966.126607124 9036.73267037648 5151390.78075942 3.24288708230923 -0.883354421950896 216570.956395094 T 14 CATAB v2.0e-lin.ifort 2018-May-10 06:25:32 2018-Dec-11 16:34
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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