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JPL Small-Body Database Browser
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(2015 DD54)
Classification: Apollo [NEO]          SPK-ID: 3711171
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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4929974682160249 2.9892e-05  
a 1.957857850020388 0.00011529 au
q .992638886833467 7.8248e-08 au
i .950358345114337 4.1724e-05 deg
node 349.3312288554428 0.00019258 deg
peri 178.9620021869325 5.8219e-05 deg
M 184.1478105713011 0.048237 deg
tp 2459089.282266638315
(2020-Aug-27.78226664)
0.17725 TDB
period 1000.622264422468
2.74
0.08838
0.000242
d
yr
n .3597761241179079 3.1777e-05 deg/d
Q 2.923076813207309 0.00017212 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 = .000103891 au 
 Jupiter MOID = 2.05358 au 
 T_jup = 3.725 
[ show covariance matrix ]

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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