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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 348 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2559537230347302 2.0222e-08  
a 1.430475306616505 9.9562e-10 AU
q 1.064339826178763 2.8984e-08 AU
i 8.705353291924151 2.3141e-06 deg
node 246.3485700607833 1.61e-05 deg
peri 338.3613003155139 1.7317e-05 deg
M 116.0797151771746 5.9261e-06 deg
tp 2456799.001040535006
(2014-May-21.50104054)
1.0315e-05 JED
period 624.9121588270555
1.71
6.5241e-07
1.786e-09
d
yr
n .5760809658043957 6.0143e-10 deg/d
Q 1.796610787054246 1.2505e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      2625  
   data-arc span      15232 days (41.70 yr)  
   first obs. used      1973-03-10  
   last obs. used      2014-11-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46075  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-23 05:20:13  

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 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 0.412540075442069 0.412532858870631 0.412547292018032 13.2594304517863 13.2589433392342 2418042.830536426 0.0730075442401922 362.204800343799 5.36142168496346 7.24870129365088 1118233.28028286 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
1908-Jul-19 12:20 00:03 Earth 0.414862033441074 0.414857302323708 0.414866764630931 3.6800070522176 3.67826137865899 2418142.013747333 3.41216157793462 59.9452908044049 4.25497748487813 -42.8542198139159 3118603.16590292 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
1913-Feb-09 10:20 00:02 Earth 0.433463742245163 0.433463445138211 0.433464039357054 4.9302668606625 4.92901992491145 2419807.930651986 2.34360767008536 53.1335182857251 4.96870927837963 86.3678825025783 5268826.24433867 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
1913-Jun-16 14:25 < 00:01 Earth 0.424352676326229 0.42434548586848 0.424359866781924 15.1366026729023 15.1361878497847 2419935.100665499 0.0823712459159181 355.138742400585 5.26797958223195 0.287071080758956 151556.319773121 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
1925-Jun-07 05:41 < 00:01 Earth 0.261249600909625 0.261242955473354 0.261256246314724 10.7101868961424 10.7092345847496 2424308.737134247 0.120930950242228 294.485422638907 4.34048695073012 4.01500543467207 444973.00287567 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
1937-May-28 20:44 < 00:01 Earth 0.123201819317158 0.123197251789701 0.123206386821254 7.20218589265649 7.19918243527808 2428682.364122321 0.169636501749608 161.38181009396 3.02722946441822 19.1719681662216 1084913.61343088 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
1949-May-22 08:44 < 00:01 Earth 0.0655643164325753 0.0655638501611563 0.0655647827280591 5.7378531163864 5.73076609600942 2433058.864066718 0.0751087780479585 32.8356016963114 2.10117823322521 65.9821405332552 1950176.34461326 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
1961-May-19 05:02 < 00:01 Earth 0.0654707856328509 0.0654706162807671 0.0654709549873277 5.42005448837908 5.41254064240257 2437438.709485880 0.0341711295716746 10.2083695215261 1.82188248866718 -73.5673811148241 2255567.99228654 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
1973-May-12 13:39 < 00:01 Earth 0.108820711002203 0.108820193573571 0.108821228430685 5.55347190534663 5.54906119318886 2441815.068947478 0.0342577200589445 13.8167039821995 2.11743399060966 -20.2299811829965 1281656.33879485 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
1985-Apr-28 05:48 < 00:01 Earth 0.235773430932296 0.235772911356059 0.235773950508173 8.19874075848814 8.19736225823316 2446183.741455528 0.0182015819952874 20.7435073245357 3.89373568541663 2.9165811216674 1042319.032196 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
1997-Apr-14 00:13 < 00:01 Earth 0.397337700775587 0.397337330346047 0.397338071205102 12.8240584003656 12.823535479526 2450552.508955535 0.0104274305447678 17.7385773355945 5.27866798090654 5.60573833288535 2650263.14846497 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
1997-Jul-17 09:05 < 00:01 Earth 0.405465747175737 0.405465582287955 0.40546591206354 3.51817621288813 3.51630787281418 2450646.878798633 0.165656638178368 6.75840972007759 2.51459231449636 -7.96214476136097 2857773.94048711 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2002-Feb-09 10:15 < 00:01 Earth 0.440902749282202 0.440902634967195 0.440902863598169 5.09167003790361 5.09048301274234 2452314.927416547 0.0809533326406101 5.09545825475642 3.55081321641673 2.67406339872537 5384818.12278226 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2002-Jun-18 08:01 < 00:01 Earth 0.439258026026185 0.439257715151049 0.439258336901304 15.5040653421375 15.5036740937677 2452443.833836768 0.00870742025300923 14.9173387435734 5.34456965608384 2.34312410306829 3596865.59176143 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2014-Jun-08 20:19 < 00:01 Earth 0.273952225865174 0.27395194730702 0.273952504423256 11.0078691424333 11.0069855505949 2456817.346454487 0.0111371551864588 12.0332086806187 4.46789602632988 4.75138811361109 2443785.6263975 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2026-May-30 08:25 < 00:01 Earth 0.132163604274676 0.132163253209574 0.132163955339595 7.39081866716482 7.38809039242696 2461190.850907964 0.0173695001714381 12.3301894665379 3.1667267944888 15.9687522148949 1274299.60531679 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2038-May-23 09:26 < 00:01 Earth 0.0664096959202059 0.0664095250504854 0.0664098667911309 5.77704035897477 5.77009112795475 2465566.893112239 0.0250150917420793 9.19517221941102 2.15780367696521 62.0385854528495 1883680.26015999 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2050-May-20 09:34 < 00:01 Earth 0.063628970252386 0.0636287103695206 0.0636292301495964 5.45116390159517 5.4434765887795 2469946.898432105 0.0576551444798141 22.0681839378301 1.84227994301249 -78.6400506343621 2223389.72443414 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2062-May-14 21:02 < 00:01 Earth 0.0960067311609107 0.096003326396444 0.096010135946904 5.46840003680048 5.46332251181991 2474324.376408323 0.212791510978288 92.2085571720182 1.9570226570059 -28.1733978090782 1524683.43913808 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2074-May-01 12:28 < 00:01 Earth 0.215033396764037 0.215026747185386 0.215040046272711 7.71357641103638 7.71196985497712 2478694.019330569 0.169945424676018 257.127835414746 3.64452567882364 1.77762950254581 169730.988672914 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2086-Apr-17 03:37 < 00:01 Earth 0.376357267713664 0.376349472300214 0.3763650631242 12.2324542397758 12.2318754661608 2483062.650915758 0.0861298444734126 382.45140701604 5.14572138631003 6.19580244169532 878431.94370093 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2086-Jul-13 05:03 00:04 Earth 0.391493609284052 0.391487944566989 0.391499274023379 3.432929681629 3.43094656511696 2483149.710092421 3.64022986302483 106.507296546434 3.59543580293807 -31.5322077056174 2510218.10166836 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2091-Feb-08 22:28 00:02 Earth 0.450634608740043 0.450632357431492 0.450636860265204 5.2967115784255 5.29559515931726 2484821.436231476 2.34383595966705 59.5109495184995 5.14919424337391 -86.5518847227276 5609272.88640621 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2091-Jun-20 09:48 < 00:01 Earth 0.458684114342218 0.458676223346044 0.458692005339568 15.9943324481602 15.9939692551602 2484952.908011399 0.083313975497582 394.10373451436 5.42980239194856 -0.357925173384699 156372.557654052 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2098-Aug-11 14:30 00:03 Earth 0.492641971397307 0.492638084119374 0.492645858744018 5.08723671922828 5.08617344720129 2487562.104291399 2.55630368672148 24.5079381509491 3.52665678524876 -11.9457596712939 2171044.64074475 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2103-Jun-11 17:05 < 00:01 Earth 0.289509178423891 0.289501308324239 0.289517048490891 11.3795969418196 11.3787881466035 2489326.211485815 0.129383590009358 358.842690539304 4.56850056191294 2.6228434411702 320364.90582257 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2115-Jun-01 17:53 < 00:01 Earth 0.139594396403523 0.139588116075061 0.139600676671072 7.54230275637255 7.53977163314841 2493699.245000337 0.206962919747148 226.284045280013 3.24976745562347 14.6483796992886 910371.206904378 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2127-May-24 21:52 < 00:01 Earth 0.0650674243545467 0.0650663833121249 0.0650684655041627 5.75065971971877 5.74353446808256 2498074.410973499 0.150579559899878 68.9616826379415 2.13211409566909 64.6100341961065 1889129.13304394 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2139-May-20 15:24 < 00:01 Earth 0.0683502051168489 0.0683480211596864 0.0683523892946163 5.40422359763917 5.39700539023136 2502453.141785643 0.253567113149823 95.1496430589872 1.77375053999473 -61.3243820184647 2204016.38915147 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2151-May-10 11:57 < 00:01 Earth 0.148150929670878 0.148138377533656 0.148163481442639 6.26780138933267 6.26493132128399 2506825.997760436 0.504966414299676 388.243406719715 2.74127251244601 -6.62814744100841 456052.879439338 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2163-Apr-25 13:38 < 00:01 Earth 0.29783669822562 0.297819406844042 0.297853989450926 10.0374290193974 10.0365377049548 2511194.067855451 0.271951609091453 788.037600695689 4.55053658661541 4.89913531534962 559528.087548307 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2168-Feb-03 10:33 00:04 Earth 0.486719867564151 0.486712057935818 0.486727677615442 6.23957008326159 6.23869265998309 2512938.939296812 4.17911506525137 161.257530660091 5.39508906983666 -71.7081177183227 6259855.13758641 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2175-Apr-12 16:52 < 00:01 Earth 0.468371451814187 0.468352584977498 0.468390318702111 14.9802443069798 14.9798645475651 2515564.202659549 0.153947116996448 960.691712417709 5.65657457853875 6.51782165688094 1128543.69529712 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2175-Aug-03 19:01 00:08 Earth 0.451121546072226 0.451110820049975 0.451132272699015 4.18529298046071 4.18388152831321 2515677.292577880 7.95432596774034 72.4745899094962 4.59402951328735 -45.7205263647417 3703741.00644973 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2180-Feb-23 19:39 00:10 Earth 0.403547243373643 0.403542037275005 0.403552449544068 3.6721283518057 3.67032986819948 2517342.318404232 10.038457335193 116.892739693258 3.64982643130401 46.0182072821483 3725145.6137179 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2180-Jun-16 04:00 < 00:01 Earth 0.366981529512469 0.366962476091108 0.367000582869519 13.4150993470656 13.414558115624 2517455.666983970 0.248393968471032 918.692779687311 5.03077855903324 0.579956848783973 95486.5889260773 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
2192-Jun-06 02:01 < 00:01 Earth 0.203857199904743 0.203839565064752 0.203874834359871 9.07900142867437 9.07756169337119 2521828.583993740 0.409058277812602 717.11801715721 3.8964781629663 6.47071138111559 556156.465392256 T 348 CATAB v2.0c-linF95 2014-Nov-23 05:20:25 2014-Nov-23 05:20
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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