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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 362 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2559754103695617 1.9577e-08  
a 1.430550869655606 9.8868e-10 au
q 1.064365023740979 2.8046e-08 au
i 8.705300776287956 2.249e-06 deg
node 246.3372695403852 1.6053e-05 deg
peri 338.3535389065736 1.7237e-05 deg
M 101.7519568108532 5.781e-06 deg
tp 2457423.858129613201
(2016-Feb-05.35812961)
1.005e-05 JED
period 624.9616747661864
1.71
6.4789e-07
1.774e-09
d
yr
n .5760353227014838 5.9717e-10 deg/d
Q 1.796736715570233 1.2418e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2773  
   data-arc span      15706 days (43.00 yr)  
   first obs. used      1973-03-10  
   last obs. used      2016-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46245  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 15:33:24  

Additional Information
 Earth MOID = .0622346 au 
 Jupiter MOID = 3.19347 au 
 T_jup = 4.639 
[ 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. 2016-February); 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 0.412540228059164 0.412533024768778 0.412547431354044 13.2594344759145 13.2589473636904 2418042.830531943 0.0729102874349697 361.537312329792 5.3381849404624 7.24715797694476 1122829.07310639 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
1908-Jul-19 12:20 00:03 Earth 0.414862129555188 0.414857406201466 0.414866852981141 3.68000830243073 3.67826262986999 2418142.013778846 3.40604072351529 59.8465132565459 4.22300879511544 -42.8428089942759 3141438.19373114 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
1913-Feb-09 10:20 00:02 Earth 0.433463665889504 0.433463373012469 0.433463958771473 4.93026457709868 4.92901764055026 2419807.930671149 2.33873617891322 53.0138990631722 4.89472563834462 86.4067485872761 5348686.18221702 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
1913-Jun-16 14:25 < 00:01 Earth 0.424352532391241 0.424345354296833 0.424359710483596 15.1365984987739 15.1361836754012 2419935.100657275 0.0821747580834398 354.520034308906 5.25321868402058 0.2867034602607 151817.010389087 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
1925-Jun-07 05:41 < 00:01 Earth 0.26124947165003 0.261242837208037 0.261256106060949 10.7101831631506 10.7092308509546 2424308.737124231 0.12066750601096 293.989740809409 4.32359876231731 4.01436134784224 446600.112187432 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
1937-May-28 20:44 < 00:01 Earth 0.123201734900337 0.123197174521531 0.123206295255854 7.20218369735545 7.19918023700279 2428682.364114938 0.169311708691572 161.122199621257 3.00353585167595 19.1707596661697 1093385.01746467 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
1949-May-22 08:44 < 00:01 Earth 0.0655643123642407 0.0655638469022864 0.0655647778503094 5.73785270099162 5.73076567966091 2433058.864062923 0.0749702714273098 32.7881032922697 2.06011533021666 65.9797421736505 1988981.57535554 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
1961-May-19 05:02 < 00:01 Earth 0.0654707913753703 0.0654706236423499 0.0654709591108124 5.42005441880875 5.41254057339517 2437438.709484475 0.0341021982727207 10.1975486248298 1.76692567045076 -73.6108589776794 2326041.84748014 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
1973-May-12 13:39 < 00:01 Earth 0.108820714657096 0.108820198140892 0.108821231173157 5.55347191418806 5.54906120218552 2441815.068950278 0.0341919809056473 13.8015806310337 2.06617700947873 -20.3041258734299 1312860.05341515 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
1985-Apr-28 05:48 < 00:01 Earth 0.235773424939277 0.235772905775782 0.235773944102418 8.1987404333169 8.1973619329722 2446183.741460199 0.0178948809748648 20.7328549816543 3.86459803066631 2.89698010003556 1042887.4672751 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
1997-Apr-14 00:13 < 00:01 Earth 0.397337685696321 0.39733731638192 0.397338055010672 12.8240574473944 12.823534526496 2450552.508964183 0.0100964770507159 17.6873971955441 5.25541997056326 5.6118339326684 2658587.54703162 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
1997-Jul-17 09:05 < 00:01 Earth 0.405465732581428 0.405465568552845 0.405465896613323 3.51817596494781 3.51630762467485 2450646.878791817 0.163450023901278 6.71627203671705 2.45407858819774 -7.76173598868742 2874357.13613919 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2002-Feb-09 10:15 < 00:01 Earth 0.44090275713203 0.440902645207053 0.44090286905776 5.0916703605115 5.09048333544659 2452314.927415689 0.0808213637848982 5.018816363551 3.48621873500993 1.3814585705006 5462460.90652374 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2002-Jun-18 08:01 < 00:01 Earth 0.439258051592667 0.439257745563363 0.439258357621915 15.5040656847936 15.5036744364553 2452443.833836304 0.00856540763320683 14.695854182178 5.32756593187967 2.4662808319708 3652676.89760847 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2014-Jun-08 20:19 < 00:01 Earth 0.273952261585701 0.273951994096467 0.273952529074866 11.0078697251772 11.0069861335008 2456817.346454357 0.0109957750689327 11.5620579653796 4.44745983012379 5.12160783394852 2547004.6706327 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2026-May-30 08:25 < 00:01 Earth 0.132163646055404 0.132163305503659 0.132163986606969 7.39081940501693 7.38809113141419 2461190.850909697 0.017248526042491 11.9914106026616 3.14603387618508 16.2269811784168 1305457.8000046 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2038-May-23 09:26 < 00:01 Earth 0.066409715245417 0.0664095481808515 0.0664098823111717 5.77704077206868 5.77009154356961 2465566.893114486 0.0249112829427247 9.10160921218649 2.11921382303044 62.3300088893491 1922561.69589359 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2050-May-20 09:34 < 00:01 Earth 0.0636289520749429 0.0636286927506717 0.0636292114135794 5.45116450770368 5.4434771935463 2469946.898442222 0.0574847900725532 22.0007093405131 1.78673249077523 -78.5904206396122 2292096.86649144 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2062-May-14 21:02 < 00:01 Earth 0.0960064141674522 0.0960030179053326 0.0960098104509603 5.46839749953958 5.46331995542818 2474324.376449677 0.21213649310974 91.9656781205006 1.90127741290955 -28.1622595677564 1568748.23668739 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2074-May-01 12:28 < 00:01 Earth 0.215032764054075 0.215026132281553 0.21503939575699 7.71356026531366 7.7119537011633 2478694.019398945 0.169297071324505 256.436998778871 3.61552828675456 1.78165914059063 171256.379178508 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2086-Apr-17 03:37 < 00:01 Earth 0.376356513906853 0.376348739954954 0.376364287855853 12.2324318136102 12.2318530377749 2483062.650979929 0.0857336278088222 381.397311783048 5.12373305372925 6.19795478840737 882479.880381987 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2086-Jul-13 05:02 00:04 Earth 0.391493054670007 0.391487406559497 0.391498702802649 3.43293158779672 3.43094846957624 2483149.709848111 3.62969083050009 106.192189932357 3.5616545228536 -31.5305527445674 2533856.33207629 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2091-Feb-08 22:28 00:02 Earth 0.450634975197523 0.450632723946806 0.45063722669467 5.29672189072487 5.29560547469864 2484821.436149322 2.33802681618241 59.3645614342711 5.06561570499615 -86.5743610263032 5701966.27634068 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2091-Jun-20 09:48 < 00:01 Earth 0.45868489061799 0.458677022796417 0.458692758440741 15.994353655214 15.9939904633103 2484952.908053946 0.0831252641590834 392.958253254401 5.41422420995259 -0.356979805897753 156758.062709989 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2098-Aug-11 14:30 00:03 Earth 0.492641573059879 0.492637697078011 0.492645449112118 5.0872281264003 5.08616485171714 2487562.104201460 2.54871069739794 24.3990684686697 3.42298826597749 -11.9785438606953 2223278.23528747 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2103-Jun-11 17:05 < 00:01 Earth 0.289509970865804 0.289502124506657 0.289517817192479 11.3796178345166 11.3788090429994 2489326.211533456 0.12907630615259 357.773948371701 4.55084944020716 2.62446839266675 321773.559136725 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2115-Jun-01 17:53 < 00:01 Earth 0.139595048700184 0.139588788065041 0.139601309274807 7.54231810043549 7.53978699419172 2493699.245050210 0.20642957519303 225.589103367122 3.22611060003932 14.6520390952534 917264.641489428 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2127-May-24 21:52 < 00:01 Earth 0.0650675437890939 0.0650665070962859 0.0650685805884336 5.7506635984306 5.74353836469304 2498074.411003639 0.150163254012702 68.7424866335112 2.0898150661446 64.6265398526658 1927627.40308022 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2139-May-20 15:24 < 00:01 Earth 0.0683499518441195 0.0683477732249693 0.0683521306826176 5.40422473599818 5.3970065033477 2502453.141840623 0.252833453830829 94.8814266250115 1.71415557830477 -61.3125686761764 2280369.18929326 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2151-May-10 11:57 < 00:01 Earth 0.148149410889216 0.148136893552395 0.148161927862587 6.26777221827601 6.26490210743362 2506825.997934593 0.503386557878328 387.158706939944 2.7034349377316 -6.62523859398863 462208.249821353 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2163-Apr-25 13:38 < 00:01 Earth 0.297834584479552 0.297817341793768 0.297851827009938 10.0373685923595 10.0364772662244 2511194.068051408 0.271017674703687 785.814301953978 4.52693304378742 4.90040100059737 562578.208329931 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2168-Feb-03 10:32 00:04 Earth 0.486720827046046 0.486713038179683 0.486728616333185 6.23959336346079 6.23871594518625 2512938.939101241 4.16789819912948 160.828191909326 5.28789104049825 -71.7168366634296 6387095.42020152 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2175-Apr-12 16:52 < 00:01 Earth 0.468369123252651 0.468350310156383 0.468387936399855 14.9801754934398 14.9797957303925 2515564.202828307 0.153382334843788 957.952289454995 5.63603514373801 6.5186122739194 1132783.18001914 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2175-Aug-03 19:01 00:08 Earth 0.451120208289081 0.451109513446069 0.451130903733255 4.18526471252719 4.18385324665694 2515677.292223473 7.93113615436654 72.2497770782908 4.5436653252687 -45.7342382165965 3745517.14024495 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2180-Feb-23 19:38 00:10 Earth 0.403548558784107 0.403543365425764 0.403553752213849 3.67217967494503 3.67038122235081 2517342.318015945 10.0105574003012 116.591932810337 3.61161546989044 46.0100430009941 3764073.5131331 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2180-Jun-16 04:01 < 00:01 Earth 0.366983899011023 0.366964901484434 0.367002896473705 13.4151634173907 13.4146221920287 2517455.667118261 0.247751342537442 916.011858138881 5.01401604426005 0.580478447459131 95864.6315305041 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
2192-Jun-06 02:01 < 00:01 Earth 0.203859413297591 0.203841830908571 0.203876995304035 9.07905731213956 9.07761760133265 2521828.584139620 0.407957908954977 715.001462582992 3.87618194584674 6.47162127007788 559152.156339955 T 362 CATAB v2.0c-linF95 2016-Mar-24 15:33:31 2016-Mar-24 15:33
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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