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1943 Anteros (1973 EC)
Classification: Amor [NEO]          SPK-ID: 2001943
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 336 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2559537243330181 2.0392e-08  
a 1.43047530660762 9.973e-10 AU
q 1.064339824314984 2.9232e-08 AU
i 8.705353183995557 2.3371e-06 deg
node 246.3485689827776 1.6154e-05 deg
peri 338.3613015105591 1.7372e-05 deg
M 116.0797151087806 5.934e-06 deg
tp 2456799.001040655606
(2014-May-21.50104066)
1.0329e-05 JED
period 624.9121588212334
1.71
6.5352e-07
1.789e-09
d
yr
n .5760809658097628 6.0245e-10 deg/d
Q 1.796610788900256 1.2526e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      2559  
   data-arc span      15177 days (41.55 yr)  
   first obs. used      1973-03-10  
   last obs. used      2014-09-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45889  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-30 06:17:23  

Additional Information
 Earth MOID = .063908 AU 
 T_jup = 4.640 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.75 mag n/a PDS3 (MPC 17263)  
diameter diameter 2.3 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  
rotation period rot_per 2.867 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R.; Greenberg, R.; et al. (1990) Icarus 86, 402-447.]
[Pravec, P.; Wolf, M.; Sarounova, L. (1998) Icarus 136, 124-153.]
[Warner, B.D. (2013) http://www.minorplanetobserver.com/PDO/PDOLig htcurves.htm]
geometric albedo albedo 0.17   n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  
B-V BV .841 mag .036 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=15.92, mean=16.51, max.=17.10) deg.
U-B UB .444 mag .061 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=15.92, mean=16.51, max.=17.10) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B L   n/a Binzel et al. (2001) Icarus 151, 139-149  

1943 Anteros (1973 EC)          Discovered 1973-Mar-13 by Gibson, J. at El Leoncito (808)
Reference: DISCOVERY.DBLast Updated: 2013-09-05

[ 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
1908-Apr-11 07:56 < 00:01 Earth 0.412540053302092 0.412532829431476 0.412547277177209 13.2594300482622 13.2589429356691 2418042.830535670 0.073055374189361 362.569765049027 5.39685278172741 7.25085560866891 1111299.56056598 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
1908-Jul-19 12:20 00:03 Earth 0.414862021759779 0.414857286700605 0.414866756891558 3.68000684695905 3.67826117325387 2418142.013744333 3.41538800238248 59.9964206022293 4.2741703248282 -42.8520486242211 3104539.7915902 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
1913-Feb-09 10:20 00:02 Earth 0.433463752819333 0.43346345532271 0.433464050320898 4.93026739877164 4.92902046318715 2419807.930648323 2.34614130995698 53.192057496496 4.97721680274041 86.3703015265175 5259834.96673295 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
1913-Jun-16 14:25 < 00:01 Earth 0.424352693953151 0.42434549674934 0.424359891154906 15.1366032734483 15.1361884503643 2419935.100668000 0.0824901779229865 355.47547849597 5.28729742888108 0.286353274644982 151334.935304195 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
1925-Jun-07 05:41 < 00:01 Earth 0.261249614644451 0.261242963207118 0.261256266050557 10.7101872420149 10.7092349307029 2424308.737134804 0.121095240474711 294.755209208595 4.35732197978916 4.01459720480373 443266.462097538 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
1937-May-28 20:44 < 00:01 Earth 0.123201825539779 0.123197254150774 0.123206396905383 7.20218604719109 7.19918259002887 2428682.364122748 0.169851034787651 161.522078704939 3.04315296650401 19.1722060439154 1079263.49649117 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
1949-May-22 08:44 < 00:01 Earth 0.0655643142873837 0.0655638477653001 0.0655647808335569 5.73785308179183 5.73076606114005 2433058.864065513 0.0752383482237071 32.8593844574673 2.11871923078881 65.9867899439979 1934112.39188803 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
1961-May-19 05:02 < 00:01 Earth 0.0654707820845631 0.0654706120158703 0.0654709521557571 5.42005447220858 5.41254062580211 2437438.709484734 0.0342709105633681 10.2163102735313 1.83885321117309 -73.5224422322062 2234304.12174846 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
1973-May-12 13:39 < 00:01 Earth 0.108820705335095 0.108820187022221 0.108821223647818 5.5534718818704 5.54906116946418 2441815.068947195 0.0343085218232848 13.8363867151827 2.13280777133864 -20.1929513034483 1271659.57828228 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
1985-Apr-28 05:48 < 00:01 Earth 0.235773426889745 0.235772906740995 0.235773947038141 8.19874093157925 8.19736243132974 2446183.741452222 0.0182581969455981 20.76368444586 3.91941889311255 2.92170367512045 1041030.79779536 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
1997-Apr-14 00:13 < 00:01 Earth 0.397337698709843 0.397337328014419 0.397338069405242 12.8240583612947 12.8235354404508 2450552.508956194 0.010489855094585 17.7483639248012 5.31330501683979 5.58389151314848 2646350.54413493 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
1997-Jul-17 09:05 < 00:01 Earth 0.405465748727677 0.405465584129575 0.405465913327075 3.51817604824701 3.51630770809273 2450646.878796339 0.165889603621426 6.79952163047914 2.52669396434085 -7.97310022408008 2841353.77676151 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2002-Feb-09 10:15 < 00:01 Earth 0.440902750708815 0.440902635985665 0.440902865431989 5.09167025704477 5.09048323193844 2452314.927415252 0.0810641852196596 5.10561288637556 3.56749160998615 2.89473952039672 5375093.74715049 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2002-Jun-18 08:01 < 00:01 Earth 0.439258025345084 0.439257713998943 0.439258336691207 15.5040653428054 15.503674094435 2452443.833836892 0.00875843780574318 14.9380740392649 5.3639634973514 2.36016368730859 3592062.26467928 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2014-Jun-08 20:19 < 00:01 Earth 0.273952224390071 0.273951943962364 0.273952504817747 11.0078690849337 11.006985493086 2456817.346454095 0.0111825222848736 12.1123906031025 4.48556225153953 4.69742863549413 2426981.57304528 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2026-May-30 08:25 < 00:01 Earth 0.132163601589974 0.132163248020856 0.132163955158895 7.39081859923774 7.38809032441936 2461190.850907566 0.0174040595740091 12.4102961607174 3.18177206676026 15.9019747637041 1264617.51375783 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2038-May-23 09:26 < 00:01 Earth 0.0664096929811027 0.0664095208820477 0.0664098650811906 5.77704031241126 5.77009108102741 2465566.893111588 0.0250681876203436 9.22785457917979 2.17430353005165 61.959246838809 1868221.36489026 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2050-May-20 09:34 < 00:01 Earth 0.0636289669299164 0.0636287068996657 0.0636292269745234 5.45116389830216 5.44347658508015 2469946.898431888 0.0577161002375238 22.1018661082904 1.85996991048928 -78.6590391785847 2202393.88438292 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2062-May-14 21:02 < 00:01 Earth 0.0960067198322269 0.0960033109380318 0.0960101287479314 5.46839999118299 5.4633224655606 2474324.376407324 0.21307299836866 92.3291465686033 1.97216424081125 -28.1796664325543 1513301.69633503 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2074-May-01 12:28 < 00:01 Earth 0.215033377607094 0.215026719382004 0.215040035762027 7.71357625290844 7.7119696966731 2478694.019327821 0.170229460319523 257.466142825228 3.66727421457242 1.77458064524283 168583.550116856 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2086-Apr-17 03:37 < 00:01 Earth 0.376357244930318 0.376349439114173 0.376365050743556 12.2324536059316 12.2318748322516 2483062.650917865 0.0862983679452627 382.964411282383 5.17804303037059 6.19368579151377 872721.24218187 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2086-Jul-13 05:03 00:04 Earth 0.391493595745151 0.391487923057669 0.391499268454952 3.43292959411074 3.43094647747952 2483149.710090168 3.6453351901811 106.669079900215 3.62078222589985 -31.5330724992009 2492748.59163219 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2091-Feb-08 22:28 00:02 Earth 0.450634620349259 0.450632368544272 0.45063687229076 5.29671174141448 5.29559532236936 2484821.436229721 2.34681208566997 59.5850623912135 5.15926509777342 -86.5569629472523 5598353.66937616 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2091-Jun-20 09:48 < 00:01 Earth 0.458684134981301 0.458676232799457 0.458692037164319 15.9943330420144 15.9939698490443 2484952.908012776 0.0833933423008467 394.658288248389 5.44933354348189 -0.357524772562606 156067.249158507 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2098-Aug-11 14:30 00:03 Earth 0.492641961168247 0.492638068169644 0.492645854238953 5.08723647710617 5.08617320500649 2487562.104289212 2.56012604810102 24.5489330088655 3.54742987747769 -11.9645886263235 2163456.28509475 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2103-Jun-11 17:05 < 00:01 Earth 0.289509200636528 0.289501319096052 0.289517082144253 11.3795975586493 11.3787887635391 2489326.211487514 0.129516514792238 359.359682285688 4.58574995540887 2.62276065703265 319204.368641526 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2115-Jun-01 17:53 < 00:01 Earth 0.13959441720621 0.139588127398398 0.139600706952924 7.54230331448253 7.539772191823 2493699.245003005 0.20719839224021 226.620087416989 3.26580449287194 14.6472530702779 905842.298200908 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2127-May-24 21:52 < 00:01 Earth 0.0650674279824495 0.0650663848912002 0.0650684711811274 5.75065990697213 5.74353465596574 2498074.410974923 0.150757420828954 69.0692497542368 2.14950204908876 64.6036168762284 1873750.57512062 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2139-May-20 15:24 < 00:01 Earth 0.0683501810177415 0.0683479943755075 0.0683523678812222 5.40422368125537 5.39700547141268 2502453.141789581 0.253903875233536 95.285861587287 1.79036529834392 -61.3299325143539 2183679.79738769 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2151-May-10 11:57 < 00:01 Earth 0.148150795799066 0.148138226038541 0.148163365193106 6.26779896468939 6.2649288929359 2506825.997773020 0.505732757168229 388.79384930097 2.7586483965862 -6.63001713143491 453315.526291827 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2163-Apr-25 13:38 < 00:01 Earth 0.297836511654135 0.297819195622651 0.297853827528896 10.0374240598567 10.0365327444152 2511194.067868187 0.272399398703644 789.164343788845 4.57869725139254 4.89814979693246 555986.952366958 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2168-Feb-03 10:33 00:04 Earth 0.486719953490707 0.486712133054253 0.486727774346873 6.23957203303347 6.23869461018411 2512938.939279959 4.18495158257928 161.47703318588 5.4101226827788 -71.7100489358747 6242533.44529108 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2175-Apr-12 16:52 < 00:01 Earth 0.468371245609936 0.468352351609345 0.468390139661915 14.9802386496117 14.9798588898864 2515564.202669790 0.154213859723947 962.077603204678 5.69182977025397 6.51705771503522 1121436.45792502 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2175-Aug-03 19:01 00:08 Earth 0.451121430388197 0.451110688670316 0.451132172716411 4.18529066027775 4.1838792069855 2515677.292548846 7.96619520850292 72.5869331959923 4.60392835424477 -45.7224838299105 3695905.61042929 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2180-Feb-23 19:38 00:10 Earth 0.403547359924313 0.403542146412189 0.403552573508427 3.67213292491607 3.67033444407025 2517342.318369557 10.0526703116604 117.059112704381 3.65403568668063 46.0180898657333 3720851.44099583 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2180-Jun-16 04:00 < 00:01 Earth 0.366981735954125 0.36696265438342 0.367000817460319 13.4151050746035 13.4145638436975 2517455.666997369 0.248709246157283 920.045758247205 5.04890400100375 0.579957084364452 95190.8328463598 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
2192-Jun-06 02:01 < 00:01 Earth 0.203857393746476 0.203839732526996 0.203875054579917 9.0790063950362 9.07756666188981 2521828.584007370 0.40959788517349 718.186024577972 3.91267895766666 6.47042655471329 553833.473986718 T 336 CATAB v2.0c-linF95 2014-Sep-30 06:17:32 2014-Sep-30 06:17
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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