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3671 Dionysus (1984 KD)
Classification: Apollo [NEO, PHA]          SPK-ID: 2003671
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 123 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5416798964778041 2.1211e-08  
a 2.198591327754923 1.8234e-09 au
q 1.007658604939639 4.637e-08 au
i 13.53409449469314 4.752e-06 deg
node 82.08578905609093 1.4461e-05 deg
peri 204.2630364432902 1.4849e-05 deg
M 7.994518618488106 6.1765e-06 deg
tp 2458974.057347952652
(2020-May-04.55734795)
2.0401e-05 TDB
period 1190.735201370476
3.26
1.4813e-06
4.056e-09
d
yr
n .3023342214000712 3.7611e-10 deg/d
Q 3.389524050570208 2.8111e-09 au
  Orbit Determination Parameters
   # obs. used (total)      706  
   data-arc span      13326 days (36.48 yr)  
   first obs. used      1984-05-27  
   last obs. used      2020-11-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5172  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-21 05:21:26  

Additional Information
 Earth MOID = .0206816 au 
 Jupiter MOID = 1.83881 au 
 T_jup = 3.429 
[ 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 16.4   n/a MPO435733  
diameter diameter 1.5 km n/a Delbo et al. (2003). Icarus, v. 166, pp. 116-130  
rotation period rot_per 2.7053 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Mottola, S.; Hahn, G.; Pravec, P.; Sarounova, L. (1997) IAUC 6680; http://www.eso.org/outreach/press-rel/pr-1997/pr-08-97.html.]
[Pravec, P.; et al. (2006) Icarus 181, 63-93.]
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46-4, in press.]
geometric albedo albedo 0.16   n/a Delbo et al. (2003). Icarus, v. 166, pp. 116-130  
SMASSII spectral type spec_B Cb   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)

3671 Dionysus (1984 KD)          Discovered 1984-May-27 by Shoemaker, C. and Shoemaker, E. at Palomar
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-May-15 17:13 < 00:01 Earth 0.354543585928453 0.354541807911324 0.354545363945622 19.6372583861586 19.6368756794271 2416250.217161852 0.186375397579117 88.901696877973 8.44091204012972 -4.23828337563615 671954.480683261 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
1930-Nov-15 08:43 < 00:01 Jupiter 1.83960277966804 1.83960253327644 1.83960302605964 3.32454075012952 3.18303247744901 2426295.863102516 0.152654572580983 36.3609583862138 12.4222763188527 84.9592930345041 4081121.30596093 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
1945-Aug-16 07:08 < 00:01 Earth 0.32024686854874 0.32024635484287 0.32024738225552 15.3620591272294 15.3615175184589 2431683.797432673 0.131138998409494 39.0074379822214 9.98912440284902 51.2782314047295 3260461.5785342 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
1958-Jul-19 05:29 < 00:01 Earth 0.164105743054888 0.164105214960762 0.164106271151757 11.1454512133988 11.1439943484093 2436403.728244391 0.281752709181157 43.9928951138704 8.31995353993283 54.667937183451 1947202.05341038 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
1966-Jul-21 12:23 < 00:01 Jupiter 1.86486163187449 1.86486141241883 1.86486185133013 3.30598898494046 3.16562168218626 2439328.016294502 0.206907723508489 38.4022612669843 10.7482036241588 86.9623811554843 4018316.64279404 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
1971-Jun-23 22:55 < 00:01 Earth 0.0518125581175988 0.0518116238687556 0.0518134923673167 10.726333986449 10.7215386056914 2441126.454946618 0.307459953001564 47.7938162583063 4.0784988471252 -12.9401926947076 473522.863497108 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
1984-Jun-19 01:10 < 00:01 Earth 0.030465672708491 0.0304654158857082 0.0304659295313518 10.9438297000493 10.9358352072834 2445870.548618120 0.0509004022034984 13.1184895063935 6.61502179980048 -14.5245952476791 382436.76341561 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
1997-Jul-06 21:31 < 00:01 Earth 0.114381242415322 0.114380877336751 0.114381607494108 10.6202696202903 10.6180759726998 2450636.396619217 0.106098610444953 20.0793355384314 7.30063173254371 26.9312611347473 1195872.44178529 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
2002-May-17 12:17 < 00:01 Jupiter 1.94799078354034 1.94799039702787 1.94799117005291 3.34053824895648 3.20773420114068 2452412.011947664 0.0946541113671632 48.1571528010807 16.3297502193507 79.3209834993582 3967058.10668347 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
2010-Aug-13 02:04 < 00:01 Earth 0.280413136565798 0.280412604921256 0.280413668210771 14.0614991878399 14.0608234273266 2455421.585864274 0.140013826770736 33.0318462570243 12.7448895568334 40.2904897829259 2028022.06052833 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
2023-Sep-03 02:42 < 00:01 Earth 0.483043887265232 0.483043112648176 0.483044661882536 20.7159381049911 20.7156718339401 2460190.612478270 0.115656798353501 42.7510956381724 13.6264222774108 26.8808247815593 2490269.75954458 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
2059-May-19 09:43 < 00:01 Earth 0.316383256950624 0.316381823853873 0.316384690047447 18.6634247418157 18.6629734964293 2473232.904793728 0.141343047869952 71.927139910966 9.04958125515637 -6.5775176157369 794241.703759645 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
2060-Oct-28 09:13 < 00:01 Jupiter 1.95043241646726 1.95043201404554 1.95043281888898 3.27125546930948 3.13569193416943 2473760.883869471 0.168618366873074 28.8674360122178 20.7225791891642 72.8519198440053 4360951.27825789 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
2072-May-29 23:04 < 00:01 Earth 0.147033685785809 0.147032304802906 0.147035066768762 14.5041578349696 14.5029083768546 2477992.461050987 0.180553850095563 68.9887236174154 9.05256196665585 -3.51552289090638 321812.670541392 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
2085-Jun-18 08:19 < 00:01 Earth 0.0279970780458157 0.0279965455104489 0.0279976105868784 11.0422560019521 11.0336339343368 2482759.846520265 0.185443728857633 33.7461746424057 7.73042276418173 -39.3336363356889 362597.160236267 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
2096-Oct-04 00:50 < 00:01 Jupiter 1.83002447807732 1.83002411789544 1.83002483825925 3.25036762838644 3.10470520890637 2486885.534647760 0.230110753460125 34.4230379628435 17.8874286569927 75.7169868663715 4413848.46022474 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
2098-Aug-15 18:19 < 00:01 Earth 0.276185228371356 0.276184243866088 0.276186212880879 13.9931138048899 13.9924243462109 2487566.263382406 0.275241679187484 74.1402645780734 11.6129204590566 49.3555282254047 2243836.65846187 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
2132-Oct-02 20:05 < 00:01 Jupiter 1.88161178451356 1.88161133621653 1.88161223281068 3.27256531256088 3.13199103000195 2500032.336929097 0.64754701902742 45.1008011864647 17.7281889100604 75.8224443998821 4028511.26385895 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
2134-May-23 13:29 < 00:01 Earth 0.263632080910732 0.263626710789552 0.263637451032618 17.4842606208458 17.4836825593971 2500630.062050137 0.500374115455015 268.652791328543 6.91979703664309 -4.62350856640551 431496.21164859 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
2147-Jun-23 05:38 00:01 Earth 0.0469785665895818 0.0469741262065392 0.0469830070417963 10.6843956451907 10.6790859381441 2505408.734490118 1.29582130351541 238.995018567956 5.47915555147614 -22.1039096605304 502623.310232246 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
2160-Aug-30 12:33 < 00:01 Earth 0.375722644177458 0.375722087978281 0.375723200376935 17.5974132984956 17.5970103021337 2510226.022816355 0.0866855214288347 33.5246768907759 13.0977698166475 37.6094987156992 2613784.01067064 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
2183-May-25 20:53 00:01 Earth 0.236074468411372 0.236062384859058 0.236086551964141 16.7655835008005 16.7649102864223 2518529.370352359 1.21240637991289 602.782190506306 7.23869236347089 -1.62457712183346 133928.364763254 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
2191-May-25 13:52 00:02 Jupiter 1.92233655209021 1.92233511742574 1.92233798675479 3.21459589464813 3.07447297552886 2521451.077970074 1.67146929932866 78.2175863875023 26.7405168785813 27.0780523671536 3847599.64020611 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
2196-Jul-22 20:23 00:05 Earth 0.166514866367404 0.166503876984348 0.166525856773249 10.8167890884425 10.815309671179 2523336.349256033 4.90620774788413 850.893823332297 10.0280792257223 49.9129967360552 1648469.8745845 T 123 CATAB v2.0f-lin.ifort 2020-Nov-21 05:21:27 2020-Nov-21 05:21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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