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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 357 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2559537245464584 1.9834e-08  
a 1.430475306623795 9.9465e-10 AU
q 1.064339824021697 2.8425e-08 AU
i 8.705353513960366 2.2686e-06 deg
node 246.348570198329 1.609e-05 deg
peri 338.361300812341 1.7306e-05 deg
M 116.0797147093446 5.9093e-06 deg
tp 2456799.001041345556
(2014-May-21.50104135)
1.0286e-05 JED
period 624.9121588318324
1.71
6.5178e-07
1.784e-09
d
yr
n .576080965799992 6.0085e-10 deg/d
Q 1.796610789225892 1.2492e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      2751  
   data-arc span      15263 days (41.79 yr)  
   first obs. used      1973-03-10  
   last obs. used      2014-12-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45486  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-May-08 06:15:39  

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 LCDB (Rev. 2015-May); Warner et al., 2009 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.]
[Koehn, B.W.; Bowell, E.L.G.; Skiff, B.A.; Sanborn, J.J.; et al. (2014) Minor Planet Bul. 41, 286-300.]
[Warner, B.D. (2014) Minor Planet Bul. 41, 157-168.]
[Warner, B.D. (2015) Minor Planet Bul. 42, 41-53.]
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
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 0.412540051141688 0.412532836148673 0.412547266139226 13.2594299441706 13.2589428315711 2418042.830537086 0.0729646424654438 362.125520079904 5.34196086236328 7.24837787388155 1122206.56184232 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
1908-Jul-19 12:20 00:03 Earth 0.414862021842297 0.414857291415075 0.414866752341992 3.68000684024086 3.67826116653284 2418142.013742711 3.41130071270579 59.9326069064644 4.23005335417113 -42.8525920360193 3136780.2340686 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
1913-Feb-09 10:20 00:02 Earth 0.433463757055625 0.433463461517201 0.433464052599033 4.93026755345943 4.92902061792625 2419807.930647943 2.34308803479116 53.12187545083 4.93199713866671 86.3697062191324 5308055.72760232 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
1913-Jun-16 14:25 < 00:01 Earth 0.424352697038125 0.424345508253503 0.424359885820693 15.1366034440336 15.1361886209573 2419935.100669016 0.0823411925542 355.056072996952 5.26412993592352 0.287265560106577 151609.326890048 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
1925-Jun-07 05:41 < 00:01 Earth 0.261249618553783 0.261242974772658 0.261256262303752 10.7101875404078 10.7092352291366 2424308.737137192 0.1208932871369 294.411909617031 4.33405359514299 4.01536284820859 445648.256946488 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
1937-May-28 20:44 < 00:01 Earth 0.123201830616446 0.123197264389963 0.123206396819576 7.20218629589603 7.19918283896136 2428682.364123871 0.169589735445437 161.336572767202 3.01222719984421 19.1731500258101 1090366.89996255 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
1949-May-22 08:44 < 00:01 Earth 0.0655643152083789 0.0655638495129156 0.0655647809280055 5.73785329011291 5.73076626981836 2433058.864067541 0.0750736447384352 32.8240104397672 2.0703711552081 65.9929410574987 1979337.6919927 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
1961-May-19 05:02 < 00:01 Earth 0.0654707824863385 0.0654706139364863 0.0654709510386087 5.42005461930137 5.41254077314525 2437438.709485208 0.034125696516661 10.2065874744681 1.78104234917519 -73.5694593830416 2307172.39614368 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
1973-May-12 13:39 < 00:01 Earth 0.108820705872381 0.108820189004287 0.108821222740328 5.55347199730439 5.54906128501171 2441815.068948621 0.034206788432006 13.8076568550212 2.08426275884948 -20.2781392176495 1301660.75553513 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
1985-Apr-28 05:48 < 00:01 Earth 0.235773426877341 0.235772907635511 0.235773946118818 8.1987409193646 8.19736241911296 2446183.741453888 0.0180337870335901 20.7347745034143 3.87347729523363 2.89254634156462 1042530.38385631 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
1997-Apr-14 00:13 < 00:01 Earth 0.397337697579326 0.397337327376103 0.397338067782499 12.8240582181906 12.8235352973393 2450552.508958453 0.0102661035174694 17.7301705650598 5.25935752068647 5.5708617999364 2650875.81213726 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
1997-Jul-17 09:05 < 00:01 Earth 0.405465749340563 0.405465583620954 0.405465915061451 3.51817608562713 3.51630774549554 2450646.878794024 0.164496825987718 6.73682247462622 2.46674929202461 -7.92022655761029 2871033.6848269 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2002-Feb-09 10:15 < 00:01 Earth 0.440902754084833 0.440902641151583 0.440902867018545 5.09167047319883 5.090483448152 2452314.927414590 0.080870988420017 5.05368874033199 3.50863425816847 2.0607074308331 5426843.75897878 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2002-Jun-18 08:01 < 00:01 Earth 0.439258026854231 0.439257717070806 0.439258336637601 15.5040655747766 15.5036743264135 2452443.833839239 0.0085749481996411 14.8649338843913 5.33921992515424 2.40767957800193 3610552.7327228 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2014-Jun-08 20:19 < 00:01 Earth 0.27395222652316 0.273951950716572 0.273952502329718 11.0078692282076 11.0069856363783 2456817.346454782 0.0110009116948333 11.9102711941483 4.45941466192881 4.93567594827536 2471958.01161232 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2026-May-30 08:25 < 00:01 Earth 0.132163605391881 0.132163257296606 0.132163953486968 7.39081880701044 7.38809053234729 2461190.850908387 0.0172914181865868 12.234801469527 3.1535269824112 16.1302578046753 1288214.12721037 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2038-May-23 09:26 < 00:01 Earth 0.0664096946429551 0.0664095254008509 0.0664098638861606 5.77704053741797 5.77009130647912 2465566.893113614 0.0249760266976426 9.17324562669415 2.12784531431964 62.1895067927401 1912352.11349416 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2050-May-20 09:34 < 00:01 Earth 0.0636289656553986 0.06362870615521 0.0636292251699947 5.4511641002142 5.44347678712324 2469946.898433614 0.0576330426154089 22.0617648154428 1.80179395359894 -78.6313818295265 2273266.2818131 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2062-May-14 21:02 < 00:01 Earth 0.0960066985384778 0.0960032945374973 0.0960101025609747 5.46839992260716 5.46332239579435 2474324.376412986 0.212731590467079 92.1855052229723 1.9204122483559 -28.172149532771 1553641.22410251 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2074-May-01 12:28 < 00:01 Earth 0.215033336361287 0.215026688433848 0.215039984218778 7.71357507383428 7.71196851704513 2478694.019336016 0.169864390828919 257.061739473031 3.6246629364502 1.77841057108202 170568.008100691 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2086-Apr-17 03:37 < 00:01 Earth 0.376357198647382 0.37634940528689 0.376364992004974 12.2324524946331 12.2318737208293 2483062.650919194 0.0860702913774342 382.348638515545 5.1282466290477 6.19631925306437 881455.48030757 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2086-Jul-13 05:03 00:04 Earth 0.391493563236079 0.391487900122512 0.391499226371898 3.43292988885257 3.43094677222699 2483149.710071969 3.63911084503418 106.471396160828 3.56209191149881 -31.5303322221582 2533512.63381713 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2091-Feb-08 22:28 00:02 Earth 0.450634644939414 0.450632381340099 0.450636908656096 5.29671240646759 5.29559598762361 2484821.436225000 2.34321939620676 59.4936131512268 5.10440816462299 -86.5442994749143 5658443.67383297 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2091-Jun-20 09:48 < 00:01 Earth 0.458684180827759 0.458676292207027 0.458692069449379 15.9943343865761 15.9939711936729 2484952.908015982 0.0832938926757416 393.986209461225 5.4259260243786 -0.357731713002513 156415.748456769 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2098-Aug-11 14:30 00:03 Earth 0.492641941358481 0.492638054873833 0.492645827913813 5.08723610516052 5.08617283294032 2487562.104285220 2.55534166254733 24.500838421148 3.46339436016458 -11.9316216966048 2196677.30390427 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2103-Jun-11 17:05 < 00:01 Earth 0.289509243561094 0.289501376008345 0.289517111081188 11.3795987929853 11.3787899980828 2489326.211490692 0.129355509605886 358.727982261132 4.56215034613003 2.62327353252648 320835.093330325 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2115-Jun-01 17:53 < 00:01 Earth 0.139594449103058 0.139588171041471 0.139600727103781 7.54230423583708 7.5397731140653 2493699.245006709 0.206917298226205 226.204986021725 3.23540740991303 14.6495354023109 914471.532840383 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2127-May-24 21:52 < 00:01 Earth 0.0650674315318691 0.065066391273507 0.0650684718973761 5.75066020879003 5.74353495854699 2498074.410977772 0.15054195231593 68.9344601012687 2.10007610984455 64.6154917255955 1918030.0497349 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2139-May-20 15:24 < 00:01 Earth 0.0683501803303119 0.0683479968841935 0.0683523639969014 5.40422383959324 5.39700562988967 2502453.141791919 0.253490033130579 95.1191864268301 1.73125186432576 -61.3213027131526 2258047.76240306 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2151-May-10 11:57 < 00:01 Earth 0.148150798385174 0.148138250234311 0.148163346170808 6.26779907092046 6.26492899926576 2506825.997774410 0.504764764842173 388.116826991191 2.71704156580287 -6.62735337653484 460050.027752297 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2163-Apr-25 13:38 < 00:01 Earth 0.297836518371492 0.297819232733835 0.297853803852976 10.0374242316575 10.0365329162514 2511194.067868962 0.271819908277248 787.772513211914 4.53319703379768 4.89949275993133 561699.751679812 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2168-Feb-03 10:33 00:04 Earth 0.486719952465327 0.486712144694375 0.48672776065897 6.23957204967174 6.23869462682287 2512938.939280691 4.17771680141777 161.208683843535 5.33340330667047 -71.7054256594761 6332151.96775189 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2175-Apr-12 16:52 < 00:01 Earth 0.468371254447304 0.468352394072744 0.468390114873057 14.9802388285584 14.9798590688447 2515564.202670888 0.153863511915113 960.359710562479 5.63974957106404 6.51804970597151 1131941.31957038 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2175-Aug-03 19:01 00:08 Earth 0.451121437611914 0.451110715104784 0.45113216072316 4.18529051259812 4.18387905927866 2515677.292547837 7.9512545135848 72.448927022138 4.56651195606016 -45.714457713969 3725594.89910158 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2180-Feb-23 19:38 00:10 Earth 0.403547357897336 0.403542154004074 0.403552561862339 3.67213267887142 3.670334197896 2517342.318371776 10.0350020248184 116.849324249588 3.63552246812547 46.0208364402088 3739960.5880711 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2180-Jun-16 04:00 < 00:01 Earth 0.366981726482629 0.366962680040102 0.367000772860894 13.415104810589 13.4145635796584 2517455.666996244 0.248329922420393 918.357811036147 5.02590739133802 0.580126386295507 95587.6261417886 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
2192-Jun-06 02:01 < 00:01 Earth 0.203857381998731 0.203839753852602 0.203875009760274 9.07900618299268 9.07756644972969 2521828.584006837 0.408942322518163 716.847997046184 3.88670966141626 6.47105564047469 557581.755389669 T 357 CATAB v2.0c-linF95 2015-May-08 06:15:57 2015-May-08 06:16
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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