Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 353 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2559537226391752 2.0212e-08  
a 1.4304753066544 9.9543e-10 AU
q 1.064339826772791 2.8969e-08 AU
i 8.70535329573358 2.3125e-06 deg
node 246.3485699910208 1.6094e-05 deg
peri 338.3613003104162 1.7313e-05 deg
M 116.0797151850634 5.9258e-06 deg
tp 2456799.001040513305
(2014-May-21.50104051)
1.0315e-05 JED
period 624.9121588518879
1.71
6.5229e-07
1.786e-09
d
yr
n .5760809657815036 6.0132e-10 deg/d
Q 1.79661078653601 1.2502e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      2647  
   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      .46205  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-07 23:54:31  

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 0.412540113839612 0.412532898318209 0.412547329365538 13.259431626674 13.2589445142104 2418042.830532771 0.0729972859951197 362.152338004787 5.35859584558274 7.24863353031927 1118807.12347412 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
1908-Jul-19 12:20 00:03 Earth 0.414862057986499 0.414857327516953 0.41486678852852 3.68000738398914 3.67826171069129 2418142.013754984 3.41168492334466 59.9364935021936 4.25324305011901 -42.855070388633 3119920.00646217 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
1913-Feb-09 10:20 00:02 Earth 0.433463723327723 0.433463426246986 0.433464020413402 4.93026643736984 4.92901950145728 2419807.930655579 2.34327678891916 53.1258092829917 4.96758066489679 86.3665686066791 5270015.06857935 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
1913-Jun-16 14:25 < 00:01 Earth 0.424352639658246 0.424345450227677 0.424359829086761 15.1366017139631 15.1361868907833 2419935.100664188 0.0823572935666423 355.088053909327 5.26617067312838 0.287097857461631 151582.333853964 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
1925-Jun-07 05:41 < 00:01 Earth 0.261249568599793 0.261242924104185 0.261256213064237 10.7101859470061 10.7092336354111 2424308.737130881 0.120910986845511 294.443779316949 4.33896413415531 4.0150194357536 445126.621803441 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
1937-May-28 20:44 < 00:01 Earth 0.123201798331173 0.123197231441039 0.123206365197953 7.20218534621576 7.19918188809767 2428682.364119899 0.169609214888332 161.359265672166 3.02594708565045 19.1719502236371 1085371.27595146 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
1949-May-22 08:44 < 00:01 Earth 0.0655643150782436 0.0655638488688512 0.065564781311695 5.73785298673838 5.73076596605458 2433058.864064521 0.0750942966574165 32.8311756691379 2.09994543408533 65.9818806108004 1951316.4947258 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
1961-May-19 05:02 < 00:01 Earth 0.0654707866913443 0.0654706173935368 0.0654709559915447 5.42005446421837 5.41254061832988 2437438.709485112 0.0341613584869883 10.2068963958629 1.82075018110787 -73.5699489168807 2256996.59757057 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
1973-May-12 13:39 < 00:01 Earth 0.108820713601309 0.108820196274084 0.108821230928325 5.55347192297037 5.549061210932 2441815.068947176 0.0342511686744906 13.8142081943422 2.11635852683397 -20.2321232008623 1282354.0264273 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
1985-Apr-28 05:48 < 00:01 Earth 0.235773433800591 0.235772914305104 0.235773953295728 8.19874086504899 8.1973623648287 2446183.741454522 0.0181979528907062 20.7405649930258 3.89172197672409 2.91590241327491 1042477.55788543 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
1997-Apr-14 00:13 < 00:01 Earth 0.397337703033323 0.397337332640405 0.397338073426209 12.824058320047 12.823535399207 2450552.508957041 0.0104244942824571 17.7371545114328 5.27589631939686 5.60542284690774 2650578.01822552 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
1997-Jul-17 09:05 < 00:01 Earth 0.405465747990147 0.40546558307955 0.405465912904093 3.51817611933172 3.51630777921182 2450646.878795342 0.165649112790469 6.75539909394668 2.51366340584354 -7.96522643583785 2859137.76606045 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2002-Feb-09 10:15 < 00:01 Earth 0.440902748337252 0.440902634055115 0.440902862618581 5.09167014555533 5.09048312041662 2452314.927415980 0.0809387115726061 5.09413378483649 3.54949370472089 2.67557013002726 5386227.92223277 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2002-Jun-18 08:01 < 00:01 Earth 0.439258025436926 0.439257714564511 0.439258336309347 15.5040652315259 15.5036739831529 2452443.833835531 0.00870252054330501 14.9172255637685 5.34274251196915 2.34227717591485 3596893.75346661 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2014-Jun-08 20:19 < 00:01 Earth 0.273952227322238 0.273951948806536 0.273952505837908 11.0078690501057 11.0069854582646 2456817.346452792 0.0111318603916424 12.0311786639879 4.46631365191923 4.75435218039764 2444282.12655463 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2026-May-30 08:25 < 00:01 Earth 0.132163609248432 0.132163258289879 0.132163960206783 7.39081876230473 7.3880904877047 2461190.850908106 0.0173642855778587 12.3265332253841 3.16548112628021 15.9726410139083 1274902.38513368 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2038-May-23 09:26 < 00:01 Earth 0.0664096992139671 0.0664095284143003 0.0664098700149063 5.77704044960584 5.77009121903984 2465566.893113062 0.0250087432363883 9.19300174396765 2.15662020571664 62.0425365747804 1884769.33468929 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2050-May-20 09:34 < 00:01 Earth 0.0636289665380279 0.0636287066912674 0.0636292263991304 5.45116400871113 5.44347669559766 2469946.898433425 0.0576464936396928 22.0646044018272 1.84111099798189 -78.6392560879155 2224794.82864282 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2062-May-14 21:02 < 00:01 Earth 0.0960066698027621 0.0960032655565531 0.0960100740704908 5.46839954670735 5.46332201802473 2474324.376415342 0.212758879906697 92.1942288605817 1.95599493987896 -28.1732135430528 1525473.40052287 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2074-May-01 12:28 < 00:01 Earth 0.215033274927131 0.215026626377852 0.215039923406448 7.71357327496444 7.71196671734151 2478694.019343723 0.169917428424688 257.087648059177 3.64270753504824 1.77772046581308 169812.570223313 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2086-Apr-17 03:37 < 00:01 Earth 0.376357123621299 0.376349329425533 0.376364917814152 12.2324500550549 12.2318712810203 2483062.650926360 0.0861150261021301 382.391319805103 5.14310508025031 6.19586501074578 878882.363405412 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2086-Jul-13 05:02 00:04 Earth 0.391493503451558 0.391487839626917 0.391499167298457 3.43293004439432 3.43094692755571 2483149.710046709 3.63963803059005 106.490352842171 3.59337228989634 -31.5318263907775 2511628.87299632 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2091-Feb-08 22:28 00:02 Earth 0.450634678604598 0.450632426946709 0.450636930479042 5.29671376329309 5.29559734481857 2484821.436214273 2.34345659994364 59.5017740722679 5.14796818139009 -86.5505132884018 5610603.52568859 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2091-Jun-20 09:48 < 00:01 Earth 0.458684261656152 0.458676371917334 0.458692151396144 15.9943364731837 15.9939732803918 2484952.908018976 0.0833024969084542 394.040904311633 5.42796165988992 -0.35793592450672 156402.993113588 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2098-Aug-11 14:30 00:03 Earth 0.492641896548981 0.492638009879097 0.492645783290756 5.08723487202392 5.08617159944921 2487562.104272352 2.55587340823104 24.5049601875558 3.52522502645307 -11.9440300739004 2171522.14561169 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2103-Jun-11 17:05 < 00:01 Earth 0.289509326827593 0.289501457994274 0.28951719562827 11.3796008297857 11.3787920352606 2489326.211493916 0.129365284463249 358.784942780976 4.56692786988319 2.62285204865223 320472.178155192 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2115-Jun-01 17:53 < 00:01 Earth 0.139594518081601 0.139588238777118 0.139600797325193 7.5423056697842 7.53977454974473 2493699.245010077 0.206932587298956 226.247261326543 3.24845725510932 14.6484237174511 910741.43583857 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2127-May-24 21:52 < 00:01 Earth 0.0650674468924876 0.0650664060367658 0.0650684878552916 5.75066050247116 5.74353525427557 2498074.410980442 0.150557356975752 68.9503262208642 2.13089474586195 64.6103005285553 1890215.0034713 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2139-May-20 15:24 < 00:01 Earth 0.0683501548400057 0.0683479712254399 0.0683523386751054 5.40422381544453 5.39700560301492 2502453.141795390 0.253527560490728 95.1342914310208 1.77266470528944 -61.3242532733487 2205362.07601002 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2151-May-10 11:57 < 00:01 Earth 0.148150628597951 0.148138078460963 0.148163178369595 6.26779560640804 6.26492552987619 2506825.997794467 0.504885238373098 388.180817981312 2.73993702647694 -6.62814821950608 456273.413766846 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2163-Apr-25 13:38 < 00:01 Earth 0.29783627906797 0.297818990450798 0.297853567528918 10.0374171425657 10.0365258258139 2511194.067892421 0.271906931444968 787.91083247679 4.54825556499573 4.89915614730713 559809.047726296 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2168-Feb-03 10:33 00:04 Earth 0.486720058013833 0.486712249620135 0.486727866825931 6.23957468928678 6.23869726699943 2512938.939257734 4.17843058183362 161.232339490762 5.39362783653333 -71.7075919436547 6261537.95600048 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2175-Apr-12 16:52 < 00:01 Earth 0.468370990991151 0.468352127184889 0.468389854848631 14.9802309620594 14.9798512019327 2515564.202689225 0.153921410606852 960.536976460894 5.65371900256236 6.51784166426749 1129114.6435883 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2175-Aug-03 19:01 00:08 Earth 0.451121281745425 0.451110557437375 0.451132006657814 4.18528732182224 4.18387586693861 2515677.292506743 7.95302845113891 72.4636367197455 4.59285852920575 -45.719740017089 3704628.06326713 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2180-Feb-23 19:38 00:10 Earth 0.403547503586176 0.403542298460768 0.403552708783349 3.67213844375845 3.67033996625729 2517342.318327361 10.0367842085617 116.872999809091 3.64909049560268 46.019069194281 3725962.43687493 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2180-Jun-16 04:00 < 00:01 Earth 0.366981997165777 0.366962946835359 0.367001047431904 13.4151121424133 13.4145709121777 2517455.667011962 0.248355960211644 918.543912596353 5.02908844299188 0.579952686554664 95514.4549684667 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
2192-Jun-06 02:01 < 00:01 Earth 0.203857637870892 0.203840005902404 0.203875269454625 9.07901247922575 9.07757274876859 2521828.584021963 0.408994347544194 717.001760465933 3.89507130730685 6.47069675545459 556357.441792159 T 353 CATAB v2.0c-linF95 2015-Jan-07 23:54:39 2015-Jan-07 23:54
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Jan-31 11:37 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin