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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 356 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .255953721898361 2.02e-08  
a 1.430475306658089 9.9537e-10 AU
q 1.064339827835252 2.8952e-08 AU
i 8.705353412608932 2.3112e-06 deg
node 246.3485698878108 1.6094e-05 deg
peri 338.3613006082591 1.7312e-05 deg
M 116.0797149175701 5.9238e-06 deg
tp 2456799.001040976858
(2014-May-21.50104098)
1.0311e-05 JED
period 624.9121588543048
1.71
6.5225e-07
1.786e-09
d
yr
n .5760809657792756 6.0128e-10 deg/d
Q 1.796610785480926 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-Mar-09 13:39:11  

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
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 0.41254003973866 0.412532824580646 0.412547254901198 13.2594294117558 13.2589422991233 2418042.830538977 0.0729960008960958 362.134164463989 5.35830293683631 7.24856839192056 1118858.06133418 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
1908-Jul-19 12:20 00:03 Earth 0.414862008930064 0.414857278664541 0.414866739268054 3.68000676809266 3.67826109429604 2418142.013740141 3.4115284346868 59.934034012443 4.25322051852619 -42.8549390048013 3119928.71214437 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
1913-Feb-09 10:20 00:02 Earth 0.433463760050766 0.433463463033024 0.433464057073446 4.93026726955613 4.92902033395975 2419807.930648712 2.34314152917092 53.1225102097341 4.96672235693565 86.3674299552286 5270931.94758498 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
1913-Jun-16 14:25 < 00:01 Earth 0.424352713619722 0.424345524510923 0.424359902726468 15.1366036644321 15.1361888413781 2419935.100667530 0.0823513611455875 355.071877343448 5.26606599238475 0.287068205741626 151587.320590502 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
1925-Jun-07 05:41 < 00:01 Earth 0.261249636557993 0.261242992339203 0.261256280745623 10.7101878000582 10.7092354888757 2424308.737136188 0.120903107251783 294.431214489385 4.33880611628283 4.01496664031142 445137.494520243 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
1937-May-28 20:44 < 00:01 Earth 0.123201844469304 0.123197277745971 0.123206411169284 7.20218642863508 7.19918297209357 2428682.364123232 0.169599805866992 161.353034251495 3.0256940154074 19.171825374843 1085455.64320237 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
1949-May-22 08:44 < 00:01 Earth 0.0655643201558461 0.0655638539477508 0.0655647863880853 5.73785324195508 5.73076622213609 2433058.864067350 0.07509054946724 32.8301956764263 2.09944094177753 65.9813101587638 1951776.64832091 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
1961-May-19 05:02 < 00:01 Earth 0.0654707862568321 0.0654706169952298 0.0654709555209383 5.42005451252091 5.41254066664957 2437438.709484590 0.034160118308157 10.20660389418 1.82003508258228 -73.5719413423616 2257903.49390843 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
1973-May-12 13:39 < 00:01 Earth 0.108820710959132 0.108820193652343 0.108821228265773 5.5534719334007 5.54906122126349 2441815.068947667 0.0342507084596469 13.8138525486405 2.1155556871376 -20.2338240118779 1282859.72523917 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
1985-Apr-28 05:48 < 00:01 Earth 0.235773430614844 0.235772911121418 0.235773950107926 8.19874061427275 8.19736211399166 2446183.741458014 0.0181930707957237 20.7405008157565 3.8912633050641 2.91553766386121 1042480.29513084 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
1997-Apr-14 00:13 < 00:01 Earth 0.397337699745594 0.397337329365131 0.397338070126009 12.8240579301316 12.8235350092714 2450552.508961250 0.0104184226968247 17.7365015538779 5.27560111947988 5.60628666571867 2650716.92958913 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
1997-Jul-17 09:05 < 00:01 Earth 0.405465745306047 0.405465580434993 0.405465910178393 3.51817619244868 3.51630785235525 2450646.878796995 0.16561473791289 6.75448664318697 2.51299932087517 -7.95595436942108 2859217.17136764 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2002-Feb-09 10:15 < 00:01 Earth 0.440902750486105 0.440902636235626 0.440902864735936 5.09167017564241 5.0904831505165 2452314.927415916 0.0809358593699887 5.09322703092637 3.54828108037796 2.64018966142217 5387027.85059224 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2002-Jun-18 08:01 < 00:01 Earth 0.439258030249912 0.43925771947704 0.43925834102273 15.5040654124743 15.5036741641101 2452443.833836740 0.00870150291851948 14.9127793105138 5.34261354100919 2.34449576890572 3597991.74691022 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2014-Jun-08 20:19 < 00:01 Earth 0.273952232628845 0.273951954363262 0.273952510894372 11.0078691810049 11.0069855891914 2456817.346453122 0.0111314321489412 12.0207224839052 4.46611691726976 4.76118381973499 2446456.32130035 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2026-May-30 08:25 < 00:01 Earth 0.132163613189463 0.132163262481492 0.132163963897232 7.39081883921122 7.38809056472096 2461190.850908009 0.0173637544489674 12.3185400297689 3.16531869537112 15.9772983111632 1275495.75128375 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2038-May-23 09:26 < 00:01 Earth 0.0664096997542481 0.0664095290407074 0.0664098704688134 5.77704047160872 5.77009124112579 2465566.893112901 0.0250074623484687 9.19050973136649 2.15620970862704 62.0488943483091 1885233.95902799 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2050-May-20 09:34 < 00:01 Earth 0.0636289687420718 0.0636287088948759 0.0636292286036088 5.45116400011253 5.44347668725339 2469946.898432349 0.0576425079552946 22.062655710296 1.84036320881162 -78.6375322193153 2225685.31852555 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2062-May-14 21:02 < 00:01 Earth 0.09600669125147 0.0960032872420866 0.0960100952823688 5.4683997611768 5.46332223382839 2474324.376412521 0.212740002003749 92.1872891396821 1.95513943973066 -28.1727821520674 1526118.9577842 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2074-May-01 12:28 < 00:01 Earth 0.2150333157256 0.215026667690865 0.215039963690383 7.71357436829238 7.71196781120206 2478694.019339042 0.169898291230406 257.067619291105 3.64227233334524 1.77787058776596 169843.619250335 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2086-Apr-17 03:37 < 00:01 Earth 0.376357171105912 0.376349377536289 0.37636496467262 12.2324512563158 12.2318724824111 2483062.650925281 0.0861033809086597 382.360501411936 5.14283930413233 6.19594529916276 878939.505667511 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2086-Jul-13 05:02 00:04 Earth 0.39149353761727 0.391487874288629 0.391499200968165 3.43292995355806 3.43094683684007 2483149.710061807 3.63933029103698 106.480789863616 3.59326242688868 -31.5317637715012 2511701.81467398 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2091-Feb-08 22:28 00:02 Earth 0.450634656023281 0.450632404699534 0.450636907544612 5.29671283931412 5.29559642058886 2484821.436221251 2.34328821397822 59.49748756951 5.14700029262951 -86.5510603178117 5611660.70269087 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2091-Jun-20 09:48 < 00:01 Earth 0.458684214878865 0.458676325823825 0.45869210393508 15.9943351510018 15.9939719581429 2484952.908016276 0.0832977030061322 394.007131194007 5.42784351927287 -0.357899616790126 156412.051729518 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2098-Aug-11 14:30 00:03 Earth 0.49264192013074 0.492638033827597 0.492645806504562 5.08723526336912 5.08617199092712 2487562.104277035 2.55564687034817 24.5018771318073 3.52326230232666 -11.9443056726996 2172468.69444274 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2103-Jun-11 17:05 < 00:01 Earth 0.289509281588789 0.289501413459116 0.289517149685826 11.3795996922019 11.3787908974695 2489326.211492276 0.129357052799697 358.753287909782 4.56675974246266 2.62291123480421 320491.835499812 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2115-Jun-01 17:53 < 00:01 Earth 0.13959448382554 0.139588205108404 0.139600762481796 7.54230481160866 7.53977369065986 2493699.245006622 0.206917549538985 226.226571493536 3.2482107267682 14.6485544001937 910818.245039558 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2127-May-24 21:52 < 00:01 Earth 0.0650674422211468 0.0650664014965142 0.0650684830527947 5.75066033529661 5.74353508638177 2498074.410978541 0.150545416864373 68.9437391796393 2.13039497122317 64.6108250434071 1890666.41562982 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2139-May-20 15:24 < 00:01 Earth 0.0683501667762911 0.0683479833147602 0.0683523504583176 5.4042238083532 5.39700559717549 2502453.141793585 0.253505900098438 95.1262510190798 1.77183781798984 -61.3238329174883 2206382.71355579 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2151-May-10 11:57 < 00:01 Earth 0.148150692386422 0.148138143301369 0.148163241106192 6.26779688360644 6.26492680889574 2506825.997786881 0.504837149795823 388.14811580854 2.73934021855997 -6.62802960640411 456364.720547163 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2163-Apr-25 13:38 < 00:01 Earth 0.297836365685829 0.297819078546399 0.297853652669062 10.0374194465195 10.0365281302314 2511194.067887177 0.271878492593631 787.843452941717 4.54793953561656 4.89920224948156 559853.467726903 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2168-Feb-03 10:33 00:04 Earth 0.486720019072954 0.486712211325536 0.486727827235975 6.23957356340633 6.23869614089044 2512938.939266969 4.17809206776457 161.219193137584 5.39217400495175 -71.707813166666 6263232.6643868 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2175-Apr-12 16:52 < 00:01 Earth 0.468371085042686 0.468352222868241 0.468389947268341 14.9802335442082 14.9798537842232 2515564.202685033 0.153904300484304 960.453800485783 5.65350157001616 6.51787048414686 1129163.4725248 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2175-Aug-03 19:01 00:08 Earth 0.451121335348465 0.451110612013693 0.451132059287469 4.18528849375886 4.18387703943832 2515677.292521452 7.95231826263939 72.4566144906752 4.59250580736906 -45.7200154959498 3704931.46842409 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2180-Feb-23 19:38 00:10 Earth 0.403547451062349 0.403542246308129 0.403552655888323 3.67213636333712 3.67033788458242 2517342.318343389 10.0359528028353 116.86380526534 3.64870116058092 46.0186881833154 3726333.65075108 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2180-Jun-16 04:00 < 00:01 Earth 0.366981903264068 0.366962854632158 0.367000951831699 13.4151094428049 13.4145682123219 2517455.667004782 0.248336831497416 918.462386674384 5.02893971479169 0.579973354994389 95521.211996157 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
2192-Jun-06 02:01 < 00:01 Earth 0.203857550416908 0.203839920044341 0.203875180404809 9.0790102797978 9.07757054837412 2521828.584016485 0.408961492058765 716.937210233084 3.89486304166291 6.47073769839546 556390.425209178 T 356 CATAB v2.0c-linF95 2015-Mar-09 13:39:16 2015-Mar-09 13:39
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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