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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 355 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2559537218909261 2.02e-08  
a 1.430475306641494 9.9537e-10 AU
q 1.06433982783354 2.8952e-08 AU
i 8.705353412840084 2.3112e-06 deg
node 246.3485698856717 1.6094e-05 deg
peri 338.3613006002971 1.7312e-05 deg
M 116.0797149349533 5.9238e-06 deg
tp 2456799.001040950190
(2014-May-21.50104095)
1.0311e-05 JED
period 624.9121588434303
1.71
6.5225e-07
1.786e-09
d
yr
n .5760809657893002 6.0128e-10 deg/d
Q 1.796610785449448 1.2501e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      2651  
   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      .46306  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-23 05:16:37  

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-Feb); 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 (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 0.412540043278793 0.412532828120707 0.412547258441402 13.2594294028818 13.2589422902532 2418042.830540141 0.0729959950570339 362.134167816135 5.35830294051241 7.24856808221341 1118858.0227855 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
1908-Jul-19 12:20 00:03 Earth 0.414862011151627 0.414857280886673 0.414866741489048 3.68000668988881 3.67826101606444 2418142.013738872 3.41152861241506 59.9340420247741 4.25322087200796 -42.8549438332755 3119928.68928943 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
1913-Feb-09 10:20 00:02 Earth 0.43346375842596 0.433463461408449 0.43346405544841 4.93026741089912 4.92902047533383 2419807.930648086 2.34314136489348 53.122514447155 4.96672243713646 86.3674391120259 5270932.02212134 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
1913-Jun-16 14:25 < 00:01 Earth 0.424352710539149 0.42434552143028 0.424359899645964 15.1366035898961 15.1361887668371 2419935.100667506 0.0823513637050374 355.071880462606 5.26606601710307 0.28706826798442 151587.321251883 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
1925-Jun-07 05:41 < 00:01 Earth 0.261249633996828 0.261242989777869 0.261256278184626 10.7101877101297 10.7092353989299 2424308.737135693 0.12090310954766 294.431220980334 4.338806119472 4.01496684415666 445137.509136114 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
1937-May-28 20:44 < 00:01 Earth 0.123201843791929 0.123197277068485 0.123206410492021 7.20218644273906 7.19918298618691 2428682.364123763 0.16959981398692 161.353038531064 3.02569404638991 19.1718255539382 1085455.63730509 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
1949-May-22 08:44 < 00:01 Earth 0.065564320203005 0.0655638539949036 0.0655647864352505 5.7378532237199 5.73076620388346 2433058.864066769 0.0750905503592224 32.8301964518234 2.09944094059971 65.9813105401346 1951776.6516431 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
1961-May-19 05:02 < 00:01 Earth 0.0654707861855069 0.065470616923972 0.0654709554496145 5.42005452540931 5.41254067954767 2437438.709485379 0.0341601181923618 10.2066040945901 1.82003510642704 -73.5719418697183 2257903.47209663 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
1973-May-12 13:39 < 00:01 Earth 0.108820710534725 0.108820193227929 0.108821227841373 5.5534719123625 5.54906120019136 2441815.068948524 0.0342507077308478 13.8138525972367 2.11555566286741 -20.2338243207714 1282859.74385221 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
1985-Apr-28 05:48 < 00:01 Earth 0.235773430705317 0.235772911211887 0.235773950198401 8.19874067893569 8.197362178666 2446183.741456993 0.0181930707641747 20.7405010351488 3.89126334500309 2.91553815369032 1042480.30140196 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
1997-Apr-14 00:13 < 00:01 Earth 0.397337700160711 0.397337329780212 0.397338070541163 12.8240581560353 12.8235352351848 2450552.508958477 0.0104184226654784 17.7365016175242 5.27560118659853 5.60628743903917 2650716.97316783 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
1997-Jul-17 09:05 < 00:01 Earth 0.405465745609401 0.405465580740409 0.405465910479685 3.51817615716111 3.51630781705033 2450646.878795822 0.165614740023243 6.75448685617264 2.51299943046324 -7.95595592134233 2859217.11197113 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2002-Feb-09 10:15 < 00:01 Earth 0.440902750344721 0.440902636094235 0.440902864594818 5.09167028123205 5.09048325613038 2452314.927415359 0.0809358564751696 5.09322704951482 3.54828118746235 2.64018813625109 5387027.91404063 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2002-Jun-18 08:01 < 00:01 Earth 0.439258029949328 0.43925771917648 0.439258340722145 15.504065345354 15.5036740969879 2452443.833835909 0.00870150301359568 14.9127792633705 5.34261353158064 2.34449601553698 3597991.75469897 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2014-Jun-08 20:19 < 00:01 Earth 0.2739522323572 0.273951954091617 0.273952510622728 11.0078691574357 11.0069855656194 2456817.346452862 0.0111314322143475 12.0207224939686 4.46611691290913 4.76118382648896 2446456.31452878 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2026-May-30 08:25 < 00:01 Earth 0.132163612491532 0.132163261783568 0.132163963199304 7.39081877483425 7.38809050030581 2461190.850907077 0.0173637543858616 12.3185400461239 3.16531866515898 15.9772984701249 1275495.74918571 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2038-May-23 09:26 < 00:01 Earth 0.0664096990997543 0.066409528386332 0.06640986981438 5.77704043656346 5.77009120596979 2465566.893112273 0.0250074624113153 9.19050968641161 2.15620968279219 62.0488960864958 1885233.98206106 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2050-May-20 09:34 < 00:01 Earth 0.0636289704052191 0.063628710558103 0.063629230267022 5.45116397109551 5.44347665839646 2469946.898432828 0.0576425105016775 22.0626563599968 1.84036319396809 -78.6375239513711 2225685.32095707 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2062-May-14 21:02 < 00:01 Earth 0.096006718108307 0.0960033140983833 0.0960101221397461 5.46839995842712 5.46332243268307 2474324.376410380 0.2127399655803 92.1872976418507 1.95513976720257 -28.1727631009227 1526118.22698623 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2074-May-01 12:28 < 00:01 Earth 0.215033367726029 0.215026719693518 0.21504001568859 7.71357562708703 7.71196907064749 2478694.019334659 0.169898168553279 257.067568878368 3.64227295628524 1.77787376908161 169843.91477841 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2086-Apr-17 03:37 < 00:01 Earth 0.376357231268204 0.376349437702277 0.376365024831217 12.2324531563821 12.2318743826599 2483062.650918807 0.0861033280384272 382.360335834005 5.14283975425607 6.19594623286823 878939.768469556 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2086-Jul-13 05:03 00:04 Earth 0.391493581492322 0.391487918167416 0.391499244839481 3.43292978675234 3.43094667016025 2483149.710082618 3.63933028160315 106.480601155603 3.59326460320381 -31.5317882027388 2511702.22112166 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2091-Feb-08 22:28 00:02 Earth 0.450634627071286 0.450632375798073 0.45063687859171 5.29671199987548 5.29559558090151 2484821.436227974 2.34328761158918 59.4974469350051 5.14699997755371 -86.5510784806044 5611660.06653761 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2091-Jun-20 09:48 < 00:01 Earth 0.458684154415867 0.458676265364763 0.458692043468146 15.9943334236411 15.9939702306951 2484952.908012180 0.0832976690369705 394.00692838693 5.42784329359784 -0.35789883566587 156412.036281313 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2098-Aug-11 14:30 00:03 Earth 0.492641950634827 0.492638064336995 0.492645837003338 5.08723604753447 5.08617277532225 2487562.104284985 2.55564481449009 24.5018703019056 3.52326177965173 -11.9442595420659 2172463.97786737 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2103-Jun-11 17:05 < 00:01 Earth 0.289509221057125 0.28950135293215 0.28951708914944 11.3795980148971 11.3787892198764 2489326.211487718 0.129356995611279 358.753051598853 4.56675934579403 2.62291330185359 320492.021253563 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2115-Jun-01 17:53 < 00:01 Earth 0.139594434309785 0.13958815559789 0.1396007129608 7.54230365701969 7.53977253478532 2493699.245003238 0.206917447153101 226.226361110978 3.24821024009212 14.6485641464134 910818.556198795 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2127-May-24 21:52 < 00:01 Earth 0.0650674334450077 0.0650663927230531 0.0650684742739774 5.75066001371507 5.74353476343966 2498074.410975498 0.150545211852216 68.9436338831758 2.13039477770892 64.6108514297327 1890666.66240548 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2139-May-20 15:24 < 00:01 Earth 0.0683501869906532 0.0683480035290986 0.0683523706727026 5.40422371904365 5.3970055098827 2502453.141789715 0.253505587812543 95.1261338610482 1.77183781430373 -61.3237877201279 2206382.38921763 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2151-May-10 11:57 < 00:01 Earth 0.148150812918029 0.148138263858796 0.148163361611981 6.26779911357907 6.26492904222551 2506825.997775079 0.504835645063886 388.147492025095 2.73934189992219 -6.62800474041205 456363.234521198 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2163-Apr-25 13:38 < 00:01 Earth 0.297836533127579 0.297819246028155 0.297853820070808 10.037424383545 10.0365330681965 2511194.067869586 0.271877681103365 787.841810291799 4.5479410431931 4.89920665722113 559854.257636274 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2168-Feb-03 10:33 00:04 Earth 0.486719942802154 0.486712135076328 0.48672775095073 6.2395720540349 6.23869463116922 2512938.939280681 4.17808367117157 161.218797575749 5.39217346818067 -71.7078203203101 6263231.41262693 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2175-Apr-12 16:52 < 00:01 Earth 0.468371269807579 0.468352407676808 0.468390131989558 14.9802390611372 14.9798593014419 2515564.202670950 0.153903882790745 960.451623518189 5.65350233247392 6.5178712789833 1129164.05846073 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2175-Aug-03 19:01 00:08 Earth 0.451121441025115 0.451110717717798 0.45113216493666 4.18529089238209 4.18387943920143 2515677.292551084 7.95229371108748 72.4563225699168 4.59250267069836 -45.7199513654645 3704932.76191243 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2180-Feb-23 19:38 00:10 Earth 0.403547346569276 0.403542141808857 0.403552551401447 3.67213254455636 3.67033406346463 2517342.318372925 10.0359461129389 116.863577205753 3.64869538043044 46.0185661380779 3726327.44338589 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2180-Jun-16 04:00 < 00:01 Earth 0.366981715966574 0.366962667378033 0.367000764490836 13.4151044150195 13.4145631840573 2517455.666994897 0.248336392275106 918.460202714942 5.02893883169203 0.579976377218272 95521.6016387446 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
2192-Jun-06 02:01 < 00:01 Earth 0.203857375056759 0.203839744726102 0.203875005002751 9.07900585992523 9.07756612656196 2521828.584005265 0.408960855250787 716.935289422627 3.89486156544813 6.47075063124217 556391.1037738 T 355 CATAB v2.0c-linF95 2015-Feb-23 05:16:48 2015-Feb-23 05:17
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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