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JPL Small-Body Database Browser
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4179 Toutatis (1989 AC)
Classification: Apollo [NEO, PHA]          SPK-ID: 2004179
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 510 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6242486420344596 1.4595e-09  
a 2.545398024690193 4.4696e-10 au
q .9564367643401444 3.8562e-09 au
i .4479491052800336 1.903e-07 deg
node 125.1994137753345 2.407e-05 deg
peri 277.9899107677535 2.3575e-05 deg
M 311.2833559251009 2.2456e-07 deg
tp 2459201.227485289418
(2020-Dec-17.72748529)
9.7779e-07 TDB
period 1483.310192571803
4.06
3.9069e-07
1.07e-09
d
yr
n .2427004154645647 6.3926e-11 deg/d
Q 4.134359285040243 7.2597e-10 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] -4.067158491580039E-13 9.314E-14
A2 [EST] -6.306342978745202E-15 1.042E-15
  Orbit Determination Parameters
   # obs. used (total)      6102  
   # delay obs. used      35  
   # Doppler obs. used      28  
   data-arc span      31191 days (85.40 yr)  
   first obs. used      1934-02-10  
   last obs. used      2019-07-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .26584  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Aug-09 07:02:57  

Additional Information
 Earth MOID = .00657948 au 
 Jupiter MOID = 1.28945 au 
 T_jup = 3.137 
[ show covariance matrix ]

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 15.2   n/a MPO473823  
magnitude slope G 0.10   n/a PDS3 (MPC 28111) Fit
diameter diameter 5.4 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543 based on assumed medium albedo (0.15)
extent extent 1.70x2.03x4.26 km 0.08 Hudson et al. (2003) Icarus 161:346-355 dynamically equivalent, equal volume ellipsoid
rotation period rot_per 176. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Nakamura, T.; Fuse, T. (1998) Pub. Astron. Soc. Japan 50, 531-536.]
[Pravec, P.; et al. (2005) Icarus 173, 108-131.]
geometric albedo albedo 0.405   0.137 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
SMASSII spectral type spec_B Sk   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

4179 Toutatis (1989 AC)          Discovered 1989-Jan-04 by Pollas, C. at Caussols
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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-Jan-24 10:55 < 00:01 Earth 0.409560201957965 0.409558859824065 0.409561544091865 27.7834016028642 27.7831674437741 2416138.954593361 0.0998137469752174 66.9326192028791 0.65886632360951 0.787622212346337 1473884.77711299 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
1906-Oct-02 14:37 < 00:01 Earth 0.154537693347172 0.154537110905663 0.154538275788707 12.3343410732319 12.3329431394851 2417486.109223842 0.348003606624031 29.2239966793592 0.114249955400934 -6.3733215613966 21183110.3253701 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
1922-Mar-30 19:54 < 00:01 Venus 0.0887053194350672 0.0887052510211702 0.0887053878493121 8.0164421286959 8.01338776771279 2423144.329462552 0.100962193510131 9.42502721183134 0.199332758918046 68.8213144287328 63668505.9462866 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
1933-Dec-09 17:01 < 00:01 Earth 0.106214345272051 0.106213853000854 0.106214837543247 12.1010212542302 12.0989480391406 2427416.209355300 0.185484239426995 24.5576949865186 0.387144255199743 1.57606701684801 1342342.81354864 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
1937-Aug-23 23:45 < 00:01 Earth 0.191374736831329 0.191374121309787 0.19137535235287 20.0856177660493 20.0849245796218 2428769.489719413 0.0612515454946466 30.7007028976338 0.232744101313422 1.2867109259737 2698702.5115279 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
1947-May-21 19:16 < 00:01 Jupiter 1.77482353748986 1.77482342981277 1.77482364516695 5.63157426944224 5.54618267769714 2432327.302930097 0.0507431167394126 5.29077770141038 2.38027268022332 10.2493398369385 26209161.8291296 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
1959-Mar-06 17:23 < 00:01 Jupiter 1.59561946555863 1.595619400404 1.59561953071327 4.9413517626106 4.83272928893751 2436634.224327930 0.038295224980071 3.09492225082098 2.64600894446832 -2.58622968666452 36774320.6924408 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
1971-Jan-04 20:09 < 00:01 Jupiter 1.51522542119849 1.51522537248006 1.51522546991693 4.60671687287955 4.48372893477514 2440956.339833152 0.0279124092646342 2.94130097922185 1.57940470915567 -50.9451432518216 55432491.0167852 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
1981-Jan-12 23:45 < 00:01 Earth 0.376506752901605 0.376506661781096 0.376506844022113 24.0861938675624 24.0859000524987 2444617.489360525 0.0075383137972385 4.59220972947414 0.263006138921059 -8.34344278709664 31039490.9632886 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
1982-Nov-22 04:38 < 00:01 Jupiter 1.51536844126149 1.51536838562987 1.51536849689311 4.51352528846643 4.38793811046408 2445295.693375319 0.0204346957031054 3.31640173321949 0.853611664740569 -42.7414404971612 77664266.0721795 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
1985-Jan-05 17:00 < 00:01 Earth 0.282452252382976 0.282452182991548 0.282452321774404 20.6310417199464 20.6305844728358 2446071.207990115 0.00643764443613446 3.5350454522995 0.237186584281553 -11.8367988633103 35479507.1921773 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
1988-Dec-26 00:05 < 00:01 Earth 0.116929707933108 0.116929672234494 0.116929743631722 15.6008011798791 15.5993404802411 2447521.503387557 0.00441690699510497 1.9436515170499 0.176243305088791 -23.7770397236453 38550570.0770511 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
1992-Dec-08 05:36 < 00:01 Earth 0.0241504183874019 0.0241504172920983 0.0241504194827056 11.1874853505764 11.1776192222418 2448964.733419637 0.000412620282136813 0.862372004114274 0.0539721025945563 89.4366080696106 68143416.4012055 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
1994-Oct-29 12:10 < 00:01 Jupiter 1.60075946501236 1.60075938477928 1.60075954524544 4.65855537526337 4.54355173479894 2449655.006887130 0.0149776006500076 4.33838461880069 0.737297099194375 -32.0993566583953 71964986.4694832 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
1996-Nov-29 22:53 < 00:01 Earth 0.035432341308965 0.0354323374670528 0.0354323451508812 10.1840327692443 10.1766460728689 2450417.453326984 0.00117481982473484 0.844252491679139 0.14773342840958 -81.5661164312027 35829585.7887103 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
2000-Oct-31 04:28 < 00:01 Earth 0.07386479151912 0.0738647813692909 0.0738648016689533 9.70614616454502 9.70242900482763 2451848.686256289 0.00396425464246941 0.811172669685222 0.0764090316972405 -51.723732709328 104292941.654293 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
2004-Sep-29 13:37 < 00:01 Earth 0.010357190250623 0.0103571757451826 0.0103572047560957 10.9982963029878 10.9748805813434 2453278.067040349 0.000693756912777337 1.1648723398738 0.0187877598356076 -51.6204387222926 67040760.5223549 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
2006-Oct-10 02:33 < 00:01 Jupiter 1.73363626455757 1.73363616393268 1.73363636518245 5.09219137741512 4.99532282529888 2454018.606414372 0.0174208813718715 5.12830831773434 1.01562494783056 -22.9493205241894 46659958.3917349 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
2008-Nov-09 12:22 < 00:01 Earth 0.0502479021879348 0.0502478948366962 0.0502479095391763 9.20807607711837 9.20231556107892 2454780.015325221 0.00173792228712233 0.733861855065988 0.0944899545754324 -60.8861372255502 63618529.757151 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
2012-Dec-12 06:40 < 00:01 Earth 0.0463320424506559 0.0463320389116003 0.0463320459897141 11.9132291280152 11.9084008815435 2456273.777842312 0.00107840904629893 0.689472752474078 0.144319752552123 -81.3322730557319 43845140.2946402 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
2016-Dec-29 14:15 < 00:01 Earth 0.251196372872622 0.251196369778143 0.251196375967101 18.3353963897552 18.3348178735341 2457752.094001148 0.00154070901888202 0.677199876969517 0.152533720527493 87.9731068534909 256688229.419174 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
2065-Sep-05 06:23 < 00:01 Earth 0.364429727896183 0.364429056218063 0.364430399574303 20.4439971072505 20.4436394751052 2475533.766092871 0.0648142187085232 33.5008589829553 0.114352002420446 1.22240796956395 9100190.99397658 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
2069-Nov-05 15:50 < 00:01 Earth 0.0198486698937428 0.0198486166156489 0.0198487231718446 8.40638827940684 8.39040431205166 2477056.159537350 0.315974678095412 2.73832913442947 0.29798108645817 -14.1087184184022 2619974.32745942 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
2074-Jan-04 01:51 < 00:01 Earth 0.433389155119151 0.433389042621599 0.433389267616703 22.5507571351737 22.5504845038108 2478576.576932576 0.00867150297388358 5.63244867209456 0.788969090762013 5.20185059957112 12095881.6769275 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
2112-Aug-28 12:26 < 00:01 Jupiter 1.79620228472466 1.7962001800599 1.79620438938971 5.06099157289164 4.96694168735446 2492692.017988232 0.60208466880881 111.162898255015 1.82261954817494 -23.8620065553478 26758913.4030435 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
2124-Sep-18 10:25 < 00:01 Jupiter 1.51269051058977 1.51268848238108 1.51269253879931 4.33625132063058 4.20513814291362 2497095.933683127 0.728513651987045 116.571290869932 1.47401401111543 -34.9078007403029 38019739.2654719 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
2136-Sep-18 22:45 < 00:01 Jupiter 1.36899722818535 1.36899558510929 1.36899887126312 4.00513621075484 3.84755521152543 2501479.447654856 0.850466932542287 112.862383708558 1.06358154839359 -47.807154220607 58447522.0852977 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
2148-Sep-03 03:35 00:01 Jupiter 1.30796541803352 1.30796411067208 1.30796672539793 3.8983819858504 3.72856626643724 2505846.649129146 1.06544723059478 119.51599413054 0.722372149590251 -60.246736635991 92094343.2936507 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
2160-Aug-07 12:05 00:01 Jupiter 1.28537782703004 1.28537682189885 1.28537883216672 3.87087110737106 3.69671579365841 2510203.003317372 1.46829993430692 144.981495414284 0.490743822483416 -72.2345622624181 151626403.812448 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
2172-Jul-07 08:09 00:02 Jupiter 1.27822910039357 1.27822822230949 1.27822997849001 3.863157734354 3.68763900321505 2514554.839238169 2.257965635806 207.651792562707 0.61364851144026 -79.4274955735493 330612651.577257 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
2184-Jun-04 02:01 00:04 Jupiter 1.27958529335733 1.27958474762793 1.27958583911632 3.85594606671641 3.68027423681543 2518904.584228498 3.65219813832539 315.510978356131 0.598684784298676 -86.2607554859009 872304670.421382 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03
2196-Apr-29 02:01 00:06 Jupiter 1.27893880579117 1.27893855496613 1.27893905668877 3.85843207828614 3.68278797594803 2523251.584218889 5.96219195493336 492.820763611817 0.732687355210617 87.8950774188833 544837142.308642 T 510 CATAB v2.0f-lin.ifort 2019-Aug-09 07:03:13 2019-Aug-09 07:03

Alternate Designations
 1989 AC = 1934 CT 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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