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 334 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2559537242829781 2.0437e-08  
a 1.430475306579369 1.0085e-09 AU
q 1.064339824365545 2.9297e-08 AU
i 8.705353307342152 2.3419e-06 deg
node 246.3485690547679 1.6162e-05 deg
peri 338.3613015958179 1.7379e-05 deg
M 116.0797149685025 5.9406e-06 deg
tp 2456799.001040905079
(2014-May-21.50104091)
1.0341e-05 JED
period 624.9121588027209
1.71
6.6085e-07
1.809e-09
d
yr
n .5760809658268287 6.0921e-10 deg/d
Q 1.796610788793194 1.2666e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      2553  
   data-arc span      15149 days (41.48 yr)  
   first obs. used      1973-03-10  
   last obs. used      2014-08-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45892  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:40:01  

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 0.412540025339145 0.412532727704482 0.412547322978447 13.2594290665862 13.2589419539241 2418042.830540121 0.073762824153969 366.265087619293 5.40184578516114 7.25162814231774 1110251.255044 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
1908-Jul-19 12:20 00:03 Earth 0.414862004001927 0.414857220509676 0.414866787573548 3.68000653606633 3.67826086213886 2418142.013737073 3.4496996852647 60.6037726353131 4.27633504660423 -42.836913122926 3101920.74755553 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
1913-Feb-09 10:20 00:02 Earth 0.433463768308476 0.433463470340974 0.433464066281033 4.93026787321144 4.92902093779153 2419807.930644898 2.36989965656162 53.7320960604798 4.98269320372339 86.397593710552 5254209.75806402 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
1913-Jun-16 14:25 < 00:01 Earth 0.424352723234075 0.424345453141687 0.424359993324366 15.1366040971468 15.1361892741141 2419935.100669846 0.0833662371072348 359.075736334156 5.28912280131823 0.28712297584237 150001.02823378 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
1925-Jun-07 05:41 < 00:01 Earth 0.26124964303837 0.261242924516453 0.261256361528438 10.7101880083091 10.7092356971687 2424308.737136593 0.122370787430125 297.728884864992 4.35896178736906 4.01593445359652 443059.999145814 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
1937-May-28 20:44 < 00:01 Earth 0.12320184558224 0.123197228454586 0.123206462686022 7.20218653671781 7.19918308024853 2428682.364123983 0.171615839993569 163.142758476692 3.04510310670199 19.1753438354152 1078712.86148413 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
1949-May-22 08:44 < 00:01 Earth 0.0655643163868163 0.065563845744066 0.0655647870541618 5.73785323596748 5.73076621573343 2433058.864066813 0.0759966254878107 33.1861175792473 2.12186614259347 66.003188636341 1931476.06365444 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
1961-May-19 05:02 < 00:01 Earth 0.0654707811684695 0.0654706093862252 0.0654709529531635 5.42005455269908 5.41254070629914 2437438.709485598 0.0345665198501983 10.3226382511285 1.8420492386115 -73.4951796804117 2230069.72276639 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
1973-May-12 13:39 < 00:01 Earth 0.108820700200296 0.108820176209768 0.108821224190729 5.55347188419227 5.54906117157969 2441815.068947745 0.0346256333482301 13.9843904832328 2.13707787978304 -20.1663804861921 1266153.06079911 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
1985-Apr-28 05:48 < 00:01 Earth 0.235773420533074 0.235772894946179 0.235773946119618 8.19874074908121 8.19736224876384 2446183.741453723 0.0183636725262021 20.9839826715961 3.92503207548631 2.96148910053627 1031681.51774108 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
1997-Apr-14 00:13 < 00:01 Earth 0.397337693739106 0.397337319967985 0.397338067510237 12.8240583211313 12.8235354002791 2450552.508955532 0.0105240191077228 17.9019891936241 5.31976526732926 5.64112950427192 2627920.77677073 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
1997-Jul-17 09:05 < 00:01 Earth 0.405465745953471 0.405465579597991 0.405465912310255 3.51817605503613 3.51630771487267 2450646.878795437 0.167233466704745 6.82023165602469 2.53206259634781 -8.08465389537222 2837300.0646055 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2002-Feb-09 10:15 < 00:01 Earth 0.440902753537068 0.440902638005498 0.440902869068242 5.09167032600302 5.09048330092038 2452314.927414893 0.0814631789748861 5.1144916369188 3.57947866641034 2.7251448736101 5364909.85943405 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2002-Jun-18 08:01 < 00:01 Earth 0.43925802927462 0.43925771599074 0.439258342558444 15.5040654631997 15.5036742148359 2452443.833837186 0.008787205689214 15.0325312724438 5.36720307468261 2.29777514425304 3568689.94458196 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2014-Jun-08 20:19 < 00:01 Earth 0.273952225860829 0.273951944742478 0.273952506979123 11.0078690331835 11.0069854413363 2456817.346452662 0.0111936781056926 12.1415104609461 4.48722958857369 4.67942642303873 2421015.81742741 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2026-May-30 08:25 < 00:01 Earth 0.132163601356375 0.132163245542564 0.132163957169992 7.39081859085963 7.38809031603334 2461190.850906916 0.0174214072440081 12.4902356669198 3.18293066979717 15.895190997816 1260467.60220456 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2038-May-23 09:26 < 00:01 Earth 0.0664096924977777 0.0664095189129114 0.0664098660837766 5.77704035103385 5.77009111964592 2465566.893111727 0.0251593822764404 9.31712051858363 2.176256330245 61.9335188090234 1865877.40432133 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2050-May-20 09:34 < 00:01 Earth 0.0636289681626539 0.0636287060974447 0.0636292302425184 5.45116392257679 5.4434766095381 2469946.898431662 0.0582074149133253 22.3228051665859 1.86360992993235 -78.6805338916836 2198251.51258919 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2062-May-14 21:02 < 00:01 Earth 0.0960067380184616 0.096003295113416 0.0960101809454611 5.46840017666103 5.46332265217329 2474324.376406168 0.215206136491933 93.2571841912895 1.97641917084237 -28.184069347397 1510241.99705709 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2074-May-01 12:28 < 00:01 Earth 0.215033414780283 0.215026689316416 0.21504014017256 7.71357711402274 7.71197055824454 2478694.019326059 0.171973258887034 260.073367406101 3.67159209151072 1.77310533033221 168004.551447643 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2086-Apr-17 03:37 < 00:01 Earth 0.376357290098483 0.376349405079255 0.37636517511473 12.2324551104017 12.2318763368624 2483062.650912371 0.0871876334399039 386.857355974503 5.18274291651953 6.19279308831403 871684.61281357 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2086-Jul-13 05:03 00:04 Earth 0.391493629280646 0.391487898391382 0.391499360195806 3.43292954298672 3.43094642649587 2483149.710101996 3.6826625569841 107.759549479157 3.6241200355564 -31.541486403814 2490977.17227542 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2091-Feb-08 22:28 00:02 Earth 0.450634599107546 0.450632322099852 0.450636876284658 5.29671118169053 5.29559476247479 2484821.436234584 2.37084458623333 60.1889634937672 5.164633255708 -86.5810299718803 5592672.42455527 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2091-Jun-20 09:48 < 00:01 Earth 0.458684088730406 0.458676105843606 0.458692071618406 15.9943318878555 15.9939686948226 2484952.908011800 0.0842003865020064 398.689679616154 5.45110246254296 -0.357835848261991 154764.328097287 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2098-Aug-11 14:30 00:03 Earth 0.492641986062914 0.492638051617315 0.492645920581033 5.08723690045537 5.08617362849793 2487562.104294146 2.58670708686614 24.7706372736987 3.5545102290414 -11.9976448455738 2158315.33593944 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2103-Jun-11 17:05 < 00:01 Earth 0.28950915208217 0.289501189746653 0.289517114384276 11.3795962575557 11.3787874622174 2489326.211484271 0.13078684769513 363.044095421744 4.58723294648717 2.62221050790775 318812.021577434 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2115-Jun-01 17:53 < 00:01 Earth 0.139594376452637 0.139588021844367 0.139600730998539 7.54230233125211 7.53977120752344 2493699.244999106 0.20926007462209 228.953077407023 3.26728346641904 14.6459673018123 905327.5322279 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2127-May-24 21:52 < 00:01 Earth 0.0650674202006145 0.0650663660961949 0.0650684744147069 5.75065972227072 5.74353447018251 2498074.410974089 0.152248016234924 69.7849450679035 2.15194484297156 64.598665237362 1871542.74731255 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2139-May-20 15:24 < 00:01 Earth 0.0683501996708763 0.0683479907685129 0.0683524087990694 5.40422365241106 5.39700544450099 2502453.141785356 0.256485781758493 96.2702106068353 1.79405879970268 -61.3337872691841 2179263.13135479 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2151-May-10 11:57 < 00:01 Earth 0.148150906631879 0.148138206891075 0.148163605998538 6.26780112091066 6.26493105229259 2506825.997760960 0.510979149129506 392.820117945095 2.76276218333587 -6.63097451273684 452691.321246209 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2163-Apr-25 13:38 < 00:01 Earth 0.297836667399647 0.297819171967797 0.297854162671529 10.0374283857149 10.0365370711237 2511194.067856060 0.2752391787167 797.34717973684 4.58322318369856 4.89763655782239 555356.861908663 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2168-Feb-03 10:33 00:04 Earth 0.486719883161569 0.486711981273113 0.486727785487458 6.23957026647098 6.23869284324637 2512938.939294949 4.22849792356979 163.145032848479 5.41675554458324 -71.7189360926352 6235199.54859964 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2175-Apr-12 16:52 < 00:01 Earth 0.468371418959951 0.46835232897422 0.468390508998154 14.9802436861574 14.9798639267003 2515564.202658629 0.155824308389442 972.062618708187 5.69663698078878 6.51665536074679 1120393.69473668 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2175-Aug-03 19:01 00:08 Earth 0.451121530383141 0.45111067577704 0.451132385608526 4.18529287800263 4.18388142577146 2515677.292576427 8.0493308913536 73.332944172498 4.6073492601234 -45.7406395188362 3694164.26678507 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2180-Feb-23 19:38 00:10 Earth 0.403547262541291 0.403541993591261 0.403552531564816 3.6721293563615 3.67033087333296 2517342.318397388 10.1572244886095 118.289010550605 3.65622197510965 46.0106132251562 3718121.72866736 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2180-Jun-16 04:00 < 00:01 Earth 0.366981559587811 0.366962279642674 0.36700083946709 13.4151002808746 13.4145590495151 2517455.666987143 0.251250536237871 929.611247189959 5.05046500045496 0.579878140877291 94931.1927686025 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
2192-Jun-06 02:01 < 00:01 Earth 0.20385722830469 0.203839383246134 0.203875072969127 9.07900223857566 9.07756250360153 2521828.583996672 0.413802686809259 725.661228859371 3.91403344845851 6.47017609416191 553607.152716006 T 334 CATAB v2.0c-linF95 2014-Sep-12 13:40:07 2014-Sep-12 13:40
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Sep-17 07:32 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin