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392551 (2011 SM44)
Classification: Main-belt Asteroid          SPK-ID: 2392551
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1571431277914808 9.3642e-08  
a 3.191917433448972 6.7691e-08 au
q 2.690329544304645 3.2121e-07 au
i 9.210194268249419 1.0566e-05 deg
node 186.6683776921394 5.468e-05 deg
peri 278.9866053939797 8.2924e-05 deg
M 96.6342481486076 4.7637e-05 deg
tp 2458441.380716055826
(2018-Nov-18.88071606)
0.00028281 TDB
period 2082.935874974289
5.70
6.6259e-05
1.814e-07
d
yr
n .1728329730767366 5.4979e-09 deg/d
Q 3.6935053225933 7.8328e-08 au
  Orbit Determination Parameters
   # obs. used (total)      80  
   data-arc span      6233 days (17.07 yr)  
   first obs. used      2002-01-18  
   last obs. used      2019-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56707  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:44:47  

Additional Information
 Earth MOID = 1.72645 au 
 Jupiter MOID = 1.57011 au 
 T_jup = 3.157 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457448.5 (2016-Mar-01.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1582861999644401 9.3958e-08  
q 2.687369701656455 3.2282e-07 au
tp 2458441.818632878608
(2018-Nov-19.31863288)
0.00027968 TDB
node 186.6838645066989 5.4688e-05 deg
peri 279.1726786640285 8.2468e-05 deg
i 9.209569207640435 1.0566e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      80  
   data-arc span      6233 days (17.07 yr)  
   first obs. used      2002-01-18  
   last obs. used      2019-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56707  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:44:47  

Additional Information
 Jupiter MOID = 1.57011 au 
 T_jup = 3.157 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.828047568271587E-15 -2.989981926832604E-14 1.514392296456335E-11 -5.456431453179154E-14 3.508157813277789E-12 -4.704855561489645E-14
q -2.989981926832604E-14 1.042119936875893E-13 -5.527018271583096E-11 2.060947561232264E-13 -1.302387969002789E-11 1.628649475404498E-13
tp 1.514392296456335E-11 -5.527018271583096E-11 7.822017136063314E-8 -2.671672109426954E-10 1.725920132985278E-8 -1.008274089318258E-10
node -5.456431453179154E-14 2.060947561232264E-13 -2.671672109426954E-10 2.99076117447728E-9 -3.01036692883245E-9 -8.816556100451635E-11
peri 3.508157813277789E-12 -1.302387969002789E-11 1.725920132985278E-8 -3.01036692883245E-9 6.800890060850509E-9 6.464248617574219E-11
i -4.704855561489645E-14 1.628649475404498E-13 -1.008274089318258E-10 -8.816556100451635E-11 6.464248617574219E-11 1.116408743078649E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO472030  

392551 (2011 SM44)          Discovered 2002-Jan-18 by ADAS at Cima Ekar
Reference: Last Updated: 2014-04-17

[ 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
1901-Sep-30 19:03 00:13 Jupiter 1.69188698490659 1.69188335437176 1.69189061541151 1.45794764312613 1.06034702035741 2415658.293885313 12.768145848522 577.418122978172 182.624617561576 -8.95266222181748 353449.322753625 T 9 CATAB v2.0f-lin.ifort 2020-Feb-26 04:44:49 2020-Feb-26 04:45
1912-Nov-01 16:17 00:11 Jupiter 1.8172079403198 1.81720414000277 1.8172117406235 2.12354029603423 1.89134853786002 2419708.178395296 10.7365424296207 298.218644680617 64.656049497197 -60.8842045385124 376283.310031847 T 9 CATAB v2.0f-lin.ifort 2020-Feb-26 04:44:49 2020-Feb-26 04:45
1923-Dec-05 19:27 00:09 Jupiter 1.98858586553067 1.98858248881844 1.98858924227128 3.17384168897756 3.0366736390399 2423759.310581332 8.78009856883772 467.016417444193 54.4492186526092 78.9044881024528 899935.686282179 T 9 CATAB v2.0f-lin.ifort 2020-Feb-26 04:44:49 2020-Feb-26 04:45
2023-Jul-27 04:10 < 00:01 Jupiter 1.97577465574791 1.975773172602 1.97577613889382 4.48624224188292 4.38964251788744 2460152.673637057 0.876895569686615 94.752112023366 58.6115524468771 65.5288805672509 1175370.64441818 T 9 CATAB v2.0f-lin.ifort 2020-Feb-26 04:44:49 2020-Feb-26 04:45
2034-Aug-16 04:00 00:02 Jupiter 1.73079707894819 1.73079488326745 1.73079927463208 3.58346290263135 3.44418938926289 2464190.666570087 2.05400600240115 198.154415332519 58.2119208381233 68.9622261499225 938279.292266086 T 9 CATAB v2.0f-lin.ifort 2020-Feb-26 04:44:49 2020-Feb-26 04:45
2045-Sep-26 06:45 00:03 Jupiter 1.59942594236476 1.59942394014945 1.59942794459088 2.77280802031247 2.57474390213985 2468249.781189837 3.34687828715663 342.932945949212 56.6347141844113 86.0535372066243 762077.685304861 T 9 CATAB v2.0f-lin.ifort 2020-Feb-26 04:44:49 2020-Feb-26 04:45
2056-Nov-19 11:21 00:05 Jupiter 1.59621986771103 1.59621838929348 1.5962213461274 2.03541839854263 1.75546077642788 2472321.972732613 5.14317135310019 415.422347039105 142.065577621327 -64.5016148321467 556451.005904784 T 9 CATAB v2.0f-lin.ifort 2020-Feb-26 04:44:49 2020-Feb-26 04:45
2068-Jan-01 05:33 00:08 Jupiter 1.69066898545274 1.6906663527839 1.69067161812562 1.55952104626472 1.19587165856099 2476381.731233441 7.66958405881984 375.532602119198 208.064991686529 28.1811034189516 860529.318676647 T 9 CATAB v2.0f-lin.ifort 2020-Feb-26 04:44:49 2020-Feb-26 04:45
2079-Jan-25 16:00 00:10 Jupiter 1.85053683860558 1.8505324770616 1.85054120013398 2.07696767215225 1.84346422194598 2480424.166405184 9.95603927712728 256.033482074141 38.0092580161924 -66.1064608465366 451573.90698337 T 9 CATAB v2.0f-lin.ifort 2020-Feb-26 04:44:49 2020-Feb-26 04:45
2189-Sep-26 03:21 00:22 Jupiter 1.93477777412017 1.93476260031804 1.93479294820067 4.15852836904808 4.05188624861908 2520844.639284987 22.3564557343418 1400.27509325114 60.1422947820873 60.1177392177469 1072326.63306627 T 9 CATAB v2.0f-lin.ifort 2020-Feb-26 04:44:49 2020-Feb-26 04:45
2200-Oct-18 12:32 00:22 Jupiter 1.67569416363898 1.67568249725397 1.675705830718 3.4120720915136 3.26056509735244 2524884.022063861 21.7452133113373 1850.28901863436 59.9908001205755 74.8444992962221 918551.999231405 T 9 CATAB v2.0f-lin.ifort 2020-Feb-26 04:44:49 2020-Feb-26 04:45
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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