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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 358 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2559537245478542 1.9834e-08  
a 1.430475306610514 9.9465e-10 AU
q 1.064339824009819 2.8425e-08 AU
i 8.705353513980821 2.2686e-06 deg
node 246.3485701990124 1.609e-05 deg
peri 338.3613008125876 1.7306e-05 deg
M 116.0797147150213 5.9093e-06 deg
tp 2456799.001041338508
(2014-May-21.50104134)
1.0286e-05 JED
period 624.9121588231299
1.71
6.5178e-07
1.784e-09
d
yr
n .5760809658080146 6.0085e-10 deg/d
Q 1.796610789211209 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-Jun-04 15:37:13  

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 0.412540055680725 0.412532840687884 0.412547270678112 13.2594300533705 13.2589429407804 2418042.830537065 0.0729646379062008 362.125511889853 5.34196088515749 7.2483778313526 1122206.56717704 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
1908-Jul-19 12:20 00:03 Earth 0.414862024830886 0.414857294403821 0.414866755330424 3.68000688727799 3.67826121360486 2418142.013743782 3.41130059007931 59.9326015178015 4.23005339444343 -42.8525927430871 3136780.3060752 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
1913-Feb-09 10:20 00:02 Earth 0.433463754586357 0.433463459048008 0.43346405012969 4.93026756552033 4.9290206299831 2419807.930648068 2.34308793441839 53.1218755061222 4.93199715837247 86.3697091296699 5308055.70397596 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
1913-Jun-16 14:25 < 00:01 Earth 0.424352692042897 0.424345503258442 0.424359880825299 15.1366033005501 15.136188477465 2419935.100668641 0.0823411916335555 355.056064232077 5.26412992772335 0.287265654678169 151609.333011631 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
1925-Jun-07 05:41 < 00:01 Earth 0.261249613311136 0.261242969530119 0.261256257060997 10.7101873044574 10.7092349931461 2424308.737135427 0.120893279827954 294.411902514503 4.33405354823101 4.01536330861604 445648.29693728 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
1937-May-28 20:44 < 00:01 Earth 0.123201826297654 0.123197260071303 0.123206392500652 7.20218620065979 7.19918274358008 2428682.364123649 0.169589737291792 161.336567259761 3.01222716485462 19.173151219606 1090366.92947141 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
1949-May-22 08:44 < 00:01 Earth 0.0655643147889191 0.0655638490934253 0.0655647805084914 5.73785323908246 5.73076621867943 2433058.864066229 0.0750736414920838 32.8240086820738 2.07037111676558 65.9929428563366 1979337.72977364 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
1961-May-19 05:02 < 00:01 Earth 0.065470782594335 0.0654706140444821 0.065470951146606 5.42005462877438 5.41254078264381 2437438.709485958 0.0341256956384368 10.2065872226726 1.78104236356726 -73.569459010368 2307172.38049081 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
1973-May-12 13:39 < 00:01 Earth 0.108820706485474 0.108820189617383 0.108821223353419 5.55347200599931 5.5490612937384 2441815.068948440 0.0342067880415822 13.8076567991671 2.08426277078314 -20.2781388030523 1301660.73750737 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
1985-Apr-28 05:48 < 00:01 Earth 0.235773426500293 0.235772907258465 0.235773945741769 8.19874083157399 8.19736233130539 2446183.741455181 0.0180337867335645 20.7347742876448 3.87347725125563 2.89254589808456 1042530.37539502 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
1997-Apr-14 00:13 < 00:01 Earth 0.397337697592406 0.397337327389229 0.397338067795576 12.8240584493715 12.8235355285296 2450552.508955488 0.0102661036026648 17.7301704631122 5.2593575837594 5.57086250828522 2650875.87332315 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
1997-Jul-17 09:05 < 00:01 Earth 0.405465749329226 0.405465583609613 0.405465915052165 3.51817615592791 3.51630781583361 2450646.878796400 0.164496819500404 6.73682203680518 2.46674906470996 -7.92022303607542 2871033.79494573 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2002-Feb-09 10:15 < 00:01 Earth 0.44090275397564 0.440902641041542 0.440902866909341 5.09167028461175 5.09048325952064 2452314.927415604 0.0808709954514034 5.05368870269596 3.50863411655766 2.06070957918848 5426843.64005212 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2002-Jun-18 08:01 < 00:01 Earth 0.439258026637868 0.439257716854459 0.43925833642126 15.5040655377179 15.5036742893536 2452443.833838802 0.00857494820103762 14.8649338366346 5.33921992065152 2.40767964042291 3610552.74058922 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2014-Jun-08 20:19 < 00:01 Earth 0.273952226379437 0.273951950572864 0.273952502185995 11.0078692328249 11.0069856409955 2456817.346454892 0.0110009117005211 11.9102711914724 4.45941466190591 4.93567595983487 2471958.01161863 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2026-May-30 08:25 < 00:01 Earth 0.132163603706494 0.13216325561122 0.13216395180158 7.39081878943663 7.38809051473219 2461190.850908650 0.0172914182879558 12.2348014161537 3.15352697383104 16.1302581393188 1288214.12661711 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2038-May-23 09:26 < 00:01 Earth 0.0664096935361457 0.0664095242940566 0.066409862779336 5.77704050476514 5.77009127367108 2465566.893113497 0.0249760266261897 9.17324547773472 2.12784528530605 62.1895095737351 1912352.14490739 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2050-May-20 09:34 < 00:01 Earth 0.0636289674767837 0.063628707976442 0.0636292269915326 5.45116402715432 5.44347671418039 2469946.898431383 0.0576330462267709 22.0617655755446 1.80179387981126 -78.631371665372 2273266.33475208 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2062-May-14 21:02 < 00:01 Earth 0.0960067246944746 0.0960033206929399 0.0960101287175256 5.46840013915434 5.46332261392675 2474324.376409170 0.212731566859436 92.1855151721648 1.92041259016426 -28.172130100162 1553640.43745451 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2074-May-01 12:28 < 00:01 Earth 0.21503338772769 0.215026739802389 0.215040035583043 7.71357645749437 7.71196990137727 2478694.019329341 0.169864290464428 257.061695647993 3.62466362355948 1.77841447956083 170568.361400793 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2086-Apr-17 03:37 < 00:01 Earth 0.376357257751339 0.37634946439427 0.376365051105507 12.2324540394763 12.2318752658366 2483062.650916943 0.0860702236206943 382.348483350154 5.12824690744453 6.1963192033326 881455.620790165 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2086-Jul-13 05:03 00:04 Earth 0.391493606318649 0.391487943208773 0.391499269450777 3.4329297321137 3.43094661561582 2483149.710091640 3.63911084156628 106.471219337742 3.5620939549547 -31.5303560341545 2533513.08087644 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2091-Feb-08 22:28 00:02 Earth 0.450634616639022 0.450632353169753 0.450636880374103 5.29671184758525 5.29559542855333 2484821.436230159 2.3432185533722 59.4935824866637 5.10440790760504 -86.5443037131351 5658443.14137373 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2091-Jun-20 09:48 < 00:01 Earth 0.458684121747564 0.458676233130575 0.458692010365728 15.9943327629761 15.9939695699892 2484952.908012857 0.0832938642136714 393.98601654852 5.42592577441492 -0.357731081438307 156415.74165965 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2098-Aug-11 14:30 00:03 Earth 0.492641970510763 0.492638084029592 0.49264585706066 5.08723646476597 5.08617319268388 2487562.104289884 2.55534017803824 24.5008169049789 3.46339487001336 -11.9316274394577 2196678.64222564 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2103-Jun-11 17:05 < 00:01 Earth 0.289509186463451 0.289501318915225 0.289517053979024 11.3795973193765 11.3787885242097 2489326.211487915 0.129355465076963 358.727757042063 4.56214991256769 2.62327524552341 320835.247297806 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2115-Jun-01 17:53 < 00:01 Earth 0.139594405218849 0.139588127162238 0.139600683214596 7.54230314628772 7.53977202335433 2493699.245002578 0.206917190783167 226.204786827703 3.23540677218563 14.6495443405519 914471.881280871 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2127-May-24 21:52 < 00:01 Earth 0.065067426125481 0.0650663858692927 0.0650684664888138 5.75066002577073 5.74353477470825 2498074.410976491 0.150541760656766 68.9343632754367 2.10007573183864 64.6155085890266 1918030.45559861 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2139-May-20 15:24 < 00:01 Earth 0.0683501862829269 0.0683480028391949 0.0683523699471295 5.4042238065163 5.39700559739755 2502453.141788983 0.253489660520589 95.1190446048535 1.7312515833818 -61.3212878675548 2258047.99443141 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2151-May-10 11:57 < 00:01 Earth 0.148150824476264 0.148138276347958 0.148163372239341 6.26779963948838 6.26492956859971 2506825.997769824 0.504763792916631 388.116173211323 2.71704192669505 -6.62734700715453 460049.642195545 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2163-Apr-25 13:38 < 00:01 Earth 0.297836550164274 0.297819264559086 0.297853835613291 10.0374249308649 10.0365336156161 2511194.067868941 0.271819312369988 787.771059275121 4.53319724301916 4.89949272134197 561699.807904314 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2168-Feb-03 10:33 00:04 Earth 0.486719938450608 0.486712130692895 0.486727746631011 6.23957192835962 6.23869450546842 2512938.939282332 4.17770886121294 161.208389136882 5.3334031352985 -71.7054213458751 6332151.73902597 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2175-Apr-12 16:52 < 00:01 Earth 0.468371286718163 0.468352426379714 0.468390147107805 14.9802397750311 14.9798600153676 2515564.202668621 0.153863200180892 960.357879496746 5.63974976896618 6.51804982701576 1131941.41011658 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2175-Aug-03 19:01 00:08 Earth 0.451121456028651 0.451110733541878 0.451132179119539 4.18529101517806 4.18387956208578 2515677.292553765 7.95123781397413 72.4487618569199 4.56651085257179 -45.7144362881452 3725595.02347537 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2180-Feb-23 19:38 00:10 Earth 0.403547340272351 0.403542136386034 0.403552544230409 3.67213205050874 3.67033356914685 2517342.318376665 10.0349854321912 116.849107528772 3.63552149769141 46.0208162721709 3739959.58218504 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2180-Jun-16 04:00 < 00:01 Earth 0.366981694954333 0.366962648548488 0.367000741295916 13.4151040570025 13.414562825995 2517455.666995845 0.248329485147774 918.356027990257 5.02590719538271 0.580126760253524 95587.709505951 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
2192-Jun-06 02:01 < 00:01 Earth 0.203857357973422 0.203839729861931 0.20387498570033 9.07900556192229 9.0775658283911 2521828.584005078 0.408941567165972 716.84655926441 3.8867093580818 6.47105756513496 557581.877715157 T 358 CATAB v2.0c-linF95 2015-Jun-04 15:37:20 2015-Jun-04 15:37
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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