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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 339 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .255953723986927 2.0352e-08  
a 1.430475306620351 9.9703e-10 AU
q 1.064339824819531 2.9174e-08 AU
i 8.705353171018098 2.3327e-06 deg
node 246.3485689343372 1.6153e-05 deg
peri 338.3613015678081 1.7371e-05 deg
M 116.0797150565982 5.9307e-06 deg
tp 2456799.001040743498
(2014-May-21.50104074)
1.0323e-05 JED
period 624.912158829576
1.71
6.5334e-07
1.789e-09
d
yr
n .5760809658020721 6.0229e-10 deg/d
Q 1.796610788421171 1.2522e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      2565  
   data-arc span      15178 days (41.56 yr)  
   first obs. used      1973-03-10  
   last obs. used      2014-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45861  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-21 06:16:01  

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 Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) 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.]
[Warner, B.D. (2013) http://www.minorplanetobserver.com/PDO/PDOLig htcurves.htm]
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 0.412540125753197 0.412532903033661 0.412547348477233 13.2594321387514 13.2589450263207 2418042.830530655 0.0730516068430994 362.512466166221 5.39463871345284 7.25059489251406 1111712.87705827 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
1908-Jul-19 12:20 00:03 Earth 0.414862068788017 0.414857334354487 0.414866803294133 3.68000752755567 3.67826185437143 2418142.013760074 3.4149068193528 59.988522562264 4.27388771571471 -42.8524063257018 3104767.81772768 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
1913-Feb-09 10:20 00:02 Earth 0.433463716716053 0.433463419342289 0.433464014094755 4.93026621874881 4.92901928276192 2419807.930657220 2.34572431348263 53.1818000400329 4.9755028135633 86.3716587601728 5261653.22183222 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
1913-Jun-16 14:25 < 00:01 Earth 0.424352622770349 0.424345426569733 0.42435981896891 15.1366013099521 15.1361864867448 2419935.100663999 0.0824698236144066 355.425017740521 5.28711767265812 0.28627443211537 151350.664695417 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
1925-Jun-07 05:41 < 00:01 Earth 0.261249548455923 0.261242897874464 0.261256199006163 10.7101855766484 10.709233264947 2424308.737132006 0.121068437930429 294.716253399693 4.35694313139972 4.01444157070022 443289.237975083 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
1937-May-28 20:44 < 00:01 Earth 0.123201780551532 0.123197209672743 0.123206351406923 7.20218496244227 7.19918150373054 2428682.364119113 0.1698192502211 161.502868601425 3.04212556410117 19.1718339710681 1079606.64990986 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
1949-May-22 08:44 < 00:01 Earth 0.0655643105245754 0.0655638440021658 0.0655647770710715 5.73785290915918 5.73076588788692 2433058.864064587 0.0752237192555406 32.8564384709833 2.11643144203545 65.9848382708713 1936172.0747131 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
1961-May-19 05:02 < 00:01 Earth 0.0654707836493199 0.0654706137190701 0.0654709535819598 5.42005443583086 5.4125405895536 2437438.709484229 0.034263318851434 10.2152314187989 1.83586271620743 -73.5309806684231 2238029.36128775 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
1973-May-12 13:39 < 00:01 Earth 0.108820707004291 0.108820188801448 0.108821225207042 5.55347189746408 5.54906118513794 2441815.068946509 0.0343056436187387 13.8342469711307 2.1298144961996 -20.2008729949068 1273606.59860172 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
1985-Apr-28 05:48 < 00:01 Earth 0.235773427248841 0.235772907129282 0.235773947368039 8.19874088882378 8.19736238856918 2446183.741452886 0.0182434029390179 20.7625844643749 3.91710500082767 2.91906864443839 1041062.33791703 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
1997-Apr-14 00:13 < 00:01 Earth 0.397337698118331 0.397337327427229 0.397338068809443 12.8240583200519 12.8235353992054 2450552.508956442 0.0104713195670416 17.747985236988 5.3110916474604 5.58470990408354 2646541.61014643 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
1997-Jul-17 09:05 < 00:01 Earth 0.405465747711209 0.405465583157612 0.405465912262771 3.51817605644838 3.51630771629377 2450646.878796683 0.165799975678734 6.79594216506463 2.52453940682433 -7.94817120421234 2842020.38630295 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2002-Feb-09 10:15 < 00:01 Earth 0.440902750700177 0.440902636047836 0.440902865353219 5.09167028605727 5.09048326095768 2452314.927415097 0.0810519730082062 5.10364282261676 3.56370065411563 2.79511029724615 5376701.86776808 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2002-Jun-18 08:01 < 00:01 Earth 0.439258026596844 0.439257715460928 0.439258337732703 15.504065456908 15.5036742085417 2452443.833838235 0.00875229305031218 14.9288125819343 5.36368649724106 2.36780345073079 3594395.8407269 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2014-Jun-08 20:19 < 00:01 Earth 0.273952226150747 0.27395194637535 0.273952505926088 11.0078689800028 11.0069853881523 2456817.346452235 0.0111788004716863 12.0850607968582 4.48505471124116 4.72188106259645 2432735.97229384 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2026-May-30 08:25 < 00:01 Earth 0.132163604521184 0.132163251687566 0.132163957354608 7.3908186516776 7.38809037693911 2461190.850907786 0.0174024372615347 12.3869393407514 3.18115003072109 15.9207496913026 1266574.29312586 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2038-May-23 09:26 < 00:01 Earth 0.0664096954579605 0.0664095236528782 0.0664098672641412 5.77704037696363 5.77009114591687 2465566.893112337 0.025063942095269 9.22000139719029 2.17239182422409 61.9826974817924 1870244.1023692 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2050-May-20 09:34 < 00:01 Earth 0.0636289635932819 0.0636287035543242 0.0636292236468103 5.45116399991291 5.44347668643099 2469946.898434054 0.0577047496979246 22.0958107170176 1.85685877597641 -78.6530453796247 2206036.96333231 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2062-May-14 21:02 < 00:01 Earth 0.0960066657353461 0.0960032575650387 0.0960100739271501 5.4683995359234 5.46332200701553 2474324.376414859 0.213015178206743 92.307645444127 1.96898248005894 -28.1782312283059 1515671.93411829 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2074-May-01 12:28 < 00:01 Earth 0.215033271491955 0.215026614853729 0.215039928060056 7.71357340079761 7.71196684317523 2478694.019341335 0.170169103083263 257.403898987379 3.66517634816592 1.77511235328645 168712.023528487 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2086-Apr-17 03:37 < 00:01 Earth 0.376357121845473 0.376349317970802 0.376364925717239 12.2324501431782 12.231871369145 2483062.650925560 0.0862613029257226 382.868487448437 5.17607869472376 6.19398789188767 873092.138572262 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2086-Jul-13 05:02 00:04 Earth 0.391493505369444 0.39148783422812 0.391499176533074 3.43292991274347 3.43094679583849 2483149.710049478 3.64435712752358 106.639456892126 3.61936247262293 -31.5324689448995 2493682.5140728 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2091-Feb-08 22:28 00:02 Earth 0.45063467942774 0.450632428397385 0.450636930705759 5.29671355134865 5.29559713283148 2484821.436215432 2.34627550522247 59.5719034048273 5.15727046092454 -86.5573810030818 5600523.61149842 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2091-Jun-20 09:48 < 00:01 Earth 0.458684259661632 0.458676359622015 0.458692159702424 15.9943364681984 15.9939732754048 2484952.908019545 0.0833798194176493 394.55244281764 5.44916455412227 -0.357416332187896 156095.15470869 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2098-Aug-11 14:30 00:03 Earth 0.492641898745728 0.492638006931584 0.492645790633851 5.08723495043436 5.08617167788078 2487562.104273534 2.55939581408815 24.540467220643 3.54206255846341 -11.9634919498074 2165798.44733656 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2103-Jun-11 17:05 < 00:01 Earth 0.2895093219098 0.289501442584387 0.289517201202481 11.3796007506319 11.3787919560874 2489326.211494456 0.129492596068359 359.260044527809 4.58540140987168 2.62295407005023 319255.389801614 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2115-Jun-01 17:53 < 00:01 Earth 0.139594510980135 0.139588223031139 0.139600798868069 7.54230556081112 7.53977444060628 2493699.245010704 0.207153467114822 226.554726727929 3.26488859240404 14.6476832414804 906123.232265873 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2127-May-24 21:52 < 00:01 Earth 0.0650674425016306 0.0650663998360838 0.0650684852745461 5.75066036708487 5.7435351182402 2498074.410978164 0.150721793253629 69.0483492290449 2.14725366160051 64.6054480171064 1875741.28100815 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2139-May-20 15:24 < 00:01 Earth 0.0683501561783084 0.0683479700142418 0.0683523425635009 5.40422377991768 5.39700556758198 2502453.141794328 0.253836780375339 95.2604524298971 1.78707604219206 -61.3285537585318 2187669.08608733 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2151-May-10 11:57 < 00:01 Earth 0.14815065628522 0.148138089821026 0.148163222383067 6.26779627528788 6.26492619959896 2506825.997788922 0.505581893015363 388.690603804054 2.75626682801494 -6.6296656236902 453681.642314342 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2163-Apr-25 13:38 < 00:01 Earth 0.297836323195588 0.297819011799755 0.297853634434779 10.0374185728259 10.0365272563331 2511194.067886880 0.272309521908972 788.952183962407 4.57676074208633 4.8983105216009 556239.454883324 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2168-Feb-03 10:33 00:04 Earth 0.486720037860489 0.486712219457914 0.486727856691419 6.23957427200356 6.23869684962119 2512938.939261568 4.18387223861684 161.436365684983 5.40675532652993 -71.710223241884 6246430.10862084 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2175-Apr-12 16:52 < 00:01 Earth 0.468371043742918 0.468352154873023 0.468389932664173 14.9802326434208 14.9798528833796 2515564.202684804 0.154159467141161 961.815675993319 5.68991611210564 6.51716487811861 1121831.12322622 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2175-Aug-03 19:01 00:08 Earth 0.451121314333057 0.451110575688387 0.451132053583681 4.18528802374569 4.18387656920083 2515677.292516313 7.96394870716678 72.5655949729984 4.60376195263267 -45.7226353613413 3696049.30128627 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2180-Feb-23 19:38 00:10 Earth 0.403547472604527 0.403542260390359 0.403552684890649 3.67213724890468 3.67033877067993 2517342.318336570 10.0499921935491 117.029281963666 3.65368052028841 46.0177145755645 3721195.1734706 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2180-Jun-16 04:00 < 00:01 Earth 0.366981939090667 0.366962862885867 0.367001015230995 13.4151105976286 13.414569367245 2517455.667009208 0.24865068705964 919.788372852761 5.04867986844262 0.58001685650951 95207.9834079127 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
2192-Jun-06 02:01 < 00:01 Earth 0.203857578959954 0.203839922789419 0.203875234744674 9.07901100331544 9.07757127220811 2521828.584018519 0.409495921366415 717.982328739055 3.91210076454724 6.47053660329477 553925.563545774 T 339 CATAB v2.0c-linF95 2014-Oct-21 06:16:15 2014-Oct-21 06:16
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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