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433 Eros (1898 DQ)
Classification: Amor [NEO]          SPK-ID: 2000433
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 452 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2226338074911436 1.1284e-08  
a 1.457960681655676 3.8108e-10 AU
q 1.13336934392629 1.6591e-08 AU
i 10.82899935786473 2.2523e-06 deg
node 304.3345370004248 8.7929e-06 deg
peri 178.7956775609487 9.9194e-06 deg
M 231.4013670374834 4.1738e-06 deg
tp 2457230.194711529318
(2015-Jul-26.69471153)
7.4649e-06 JED
period 643.0091381660069
1.76
2.521e-07
6.902e-10
d
yr
n .5598676264956255 2.1951e-10 deg/d
Q 1.782552019385062 4.6592e-10 AU
  Orbit Determination Parameters
   # obs. used (total)      5150  
   # delay obs. used      1  
   # Doppler obs. used      3  
   data-arc span      18751 days (51.34 yr)  
   first obs. used      1963-07-15  
   last obs. used      2014-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .43689  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-16 04:46:15  

Additional Information
 Earth MOID = .149152 AU 
 T_jup = 4.583 
[ 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 11.16 mag n/a PDS3 (MPC 17258)  
magnitude slope G 0.46   n/a PDS3 (MPC 17258) Fit
diameter diameter 16.84 km 0.06 Yeomans et al. (2000) Science v.289,pp.2085-2088 sphere having the measured volume of 2503 +/- 25 km^3
extent extent 34.4x11.2x11.2 km n/a Veverka et al. (2000) Science v.289,pp.2088-2097  
GM GM 4.463e-04 km^3/s^2 0.001e-04 Yeomans et al. (2000) Science v.289,pp.2085-2088  
bulk density density 2.67 g/cm^3 0.03 Yeomans et al. (2000) Science v.289,pp.2085-2088 based on a volume of 2503 +/- 25 km^3. Porosity 10-30%.
rotation period rot_per 5.270 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Campa, M. (1938) Mem. Soc. Astron. Ital. 11, 285-301.]
[Beyer, M. (1953) Astron. Nachr. 281, 121-130.]
[Cailliate, C. (1956) Publ. Observ. Lyon 3, fasc. 28.]
[Cristescu, C. (1976) Icarus 28, 39-42.]
[Dunlap, J.L. (1976) Icarus 28, 69-78.]
[Millis, R.L.; Bowell, E.; Thompson, D.T. (1976) Icarus 28, 53-67.]
[Scaltriti, F.; Zappala, V. (1976) Icarus 28, 29-35.]
[Taylor, R.C. (1985) Icarus 61, 3, 490-496.]
[Hicks, M.; Buratti, B.J.; Rabinowitz, D.L.; Genevier, G. (1999) Icarus 141, 411-414.]
[Yeomans, D.K.; Antreasian, P.G.; Bariiot, J.-P.; Chesley, S.R.; et al. (2000) Science 289, 2085-2087.]
[Kaasalainen, M.; Torppa, J.; Muinonen, K. (2001) Icarus 153, 37-51.]
[Miller, J.K.; Konopliv, A.S.; Antreasian, P.G.; Bordi, J.J.; et al. (2002) Icarus 155, 3-17.]
[Wolters, S.D.; Green, S.F.; McBride, N.; Davies, J.K. (2008) Icarus 193, 535-552.]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.25   0.06 Veverka et al. (2000) Science v.289,pp.2088-2097 average
B-V BV .921 mag .021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=48; phase (min.=8.73, mean=34.88, max.=57.19) deg.
U-B UB .531 mag .027 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=45; phase (min.=7.37, mean=34.55, max.=57.19) 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 S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

433 Eros (1898 DQ)          Discovered 1898-Aug-13 by Witt, G. at Berlin (548)
Independent discovery earlier the same night by A. Charlois, Nice.
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
1900-Dec-27 01:30 < 00:01 Earth 0.314929526633761 0.314929013638112 0.314930039630272 5.57861520222854 5.57709839071641 2415380.562245104 0.0857123505247931 21.5044879726068 2.39758537323083 -31.1382845231694 4623162.14176285 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
1907-Nov-05 03:31 < 00:01 Earth 0.471485743070794 0.471485606240334 0.47148587990197 4.39449448922718 4.39320831907621 2417884.646195885 0.296106446716345 3.94499013968372 2.743514611432 -4.52439195216221 6579589.33314258 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
1917-Apr-20 21:19 < 00:01 Earth 0.499257047689994 0.499256945577123 0.499257149802492 4.81677952475166 4.81567141866021 2421339.388378346 0.215997951224338 4.32165551338051 3.20912965157052 13.9135359591593 7015268.78015528 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
1924-Mar-05 22:13 < 00:01 Earth 0.359786223041472 0.359785858347378 0.359786587735731 4.59606482832633 4.59445322620427 2423850.425532412 0.139469827878456 14.3755153717909 2.62352864674687 27.3305278545509 3806669.10272914 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
1931-Jan-30 04:07 < 00:01 Earth 0.174073012012814 0.174072742775955 0.174073281250249 5.92081952842982 5.918233734367 2426371.671222388 0.0332253077574197 13.1483831280269 1.85191800989438 53.4490551880621 5326127.74799976 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
1938-Jan-13 22:04 < 00:01 Earth 0.215005486476476 0.215005173344923 0.21500579960826 6.08405453475209 6.08201729363008 2428912.419538720 0.0317775410952774 13.9063011012988 2.15989885339764 -42.3458960475832 4873704.6282562 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
1944-Nov-27 01:41 < 00:01 Earth 0.40300923183421 0.403008994157316 0.403009469509482 3.62609873224306 3.62427497526927 2431421.569911525 0.23212749346925 7.11864379394565 2.18638061038179 -31.893892788399 5024951.31123575 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
1961-Apr-04 09:08 < 00:01 Earth 0.442492038755692 0.442491933926032 0.442492143586149 3.70783544736959 3.70621108999927 2437393.880354620 0.164824192547901 4.71476386915683 2.25074916807899 8.36505819857645 4587578.82143922 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
1968-Feb-11 13:46 < 00:01 Earth 0.26627130184281 0.2662711077243 0.266271495961923 6.06688704738119 6.06523743794235 2439898.073410614 0.0274320299198584 8.14563800162802 2.07496509795117 26.726086194551 4623966.79426563 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
1975-Jan-23 07:39 < 00:01 Earth 0.151134257568575 0.151134236814378 0.151134278322817 5.8253096305791 5.82228241545627 2442435.819051785 0.0182428542033022 5.09643751815902 1.8975742853687 -86.2786997547178 5507099.65075559 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
1981-Dec-29 08:05 < 00:01 Earth 0.30848938583733 0.308489256098443 0.308489515575675 5.66527317372814 5.66374838482288 2444967.836506239 0.0284195679192707 6.33326405991313 2.39182106989702 -28.6050329454023 5090354.30053621 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
1988-Nov-06 14:56 < 00:01 Earth 0.467640227462234 0.467640158349442 0.46764029657635 4.30590156253087 4.30457812592563 2447472.122256640 0.0816672976550009 3.78867504431254 2.67295915281685 -5.65040566767033 6686496.40384917 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2005-Mar-08 22:07 < 00:01 Earth 0.365567258091612 0.365567197727956 0.365567318455318 4.41229515600508 4.41064295900985 2453438.421510807 0.0430356853847571 5.12220303847149 1.88188764146522 4.98958606592899 4023492.18948712 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2012-Jan-31 11:01 < 00:01 Earth 0.178675897415988 0.178675827112427 0.178675967719318 5.94519770940949 5.94268887656161 2455957.958756541 0.0144574855416544 3.6764538417022 1.78330929844824 39.3831665976532 5197049.12870541 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2019-Jan-15 06:01 < 00:01 Earth 0.208598635861987 0.20859854209781 0.208598729625755 6.0449190722211 6.04280564971828 2458498.750800710 0.0189189415467762 4.55833989033822 2.13410869693428 -37.7104454356339 4983460.82844807 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2025-Nov-30 02:18 < 00:01 Earth 0.397647394441414 0.397647298651218 0.397647490232348 3.72885333543358 3.72705594015531 2461009.595549115 0.094976194997713 4.48750695599812 1.68568684706926 -15.7942041602617 5064729.59630738 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2042-Apr-06 19:02 < 00:01 Earth 0.446141834050862 0.446141759406583 0.446141908693692 3.72522619854501 3.72362265690478 2466981.292720254 0.168245485629296 4.38965675078269 2.42339052834668 6.98910629509209 4899981.35018726 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2049-Feb-12 05:38 < 00:01 Earth 0.272555525203371 0.272555304083062 0.272555746323809 6.05906519904705 6.05745154818215 2469484.734555064 0.0271247177662624 9.93660943550751 2.28188548366409 31.8478434114108 4799482.16539238 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2056-Jan-24 11:03 < 00:01 Earth 0.149782199500306 0.149782151767373 0.149782247233134 5.82075962045619 5.81770268306285 2472021.960384605 0.0232893939868186 7.96598346991572 1.95811579701393 -80.9184474312371 5233054.48089457 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2062-Dec-31 08:25 < 00:01 Earth 0.302953316570535 0.302953017051255 0.30295361608961 5.73224843718725 5.73071392700473 2474554.850487612 0.0508448254864917 12.2942731516723 2.33328665814361 -28.6632045397732 4509018.01045162 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2069-Nov-08 21:29 < 00:01 Earth 0.464728083045086 0.464727977649118 0.464728188439877 4.24541443034578 4.24406371933465 2477059.395095963 0.208515310617267 3.84649543433822 2.64363678486792 -7.47183581101014 6493807.90274687 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2086-Mar-11 22:55 < 00:01 Earth 0.371310279131078 0.371309901108091 0.371310657153454 4.22586114193025 4.22416271273992 2483026.454756573 0.185485822524255 14.5934678004725 2.8488780749296 30.5989563742067 3704077.90604396 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2093-Jan-31 15:47 < 00:01 Earth 0.182464141243038 0.182463807565157 0.182464474922348 5.97491614763671 5.97247163737447 2485544.157524392 0.0368154662172546 16.6689749122983 1.94519319433683 52.1873557726297 5257297.09503374 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2100-Jan-16 11:39 < 00:01 Earth 0.203878875340719 0.203878430418347 0.203879320264601 6.01492065137821 6.01274750647443 2488084.985233764 0.0465521872082413 18.6723076814091 2.10758295290753 -43.1507546627196 4732514.84324942 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2106-Dec-04 02:22 < 00:01 Earth 0.392290996036938 0.392290576462562 0.392291415611499 3.85303603374819 3.85127283882586 2490597.598768133 0.310519554776588 12.6196988234823 2.09239357809161 -32.4656877397599 5081566.43661957 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2123-Apr-10 05:51 < 00:01 Earth 0.449703078008696 0.449702869597947 0.449703286420086 3.7537278862517 3.7521491301282 2496568.744041997 0.454752593673737 4.90280779635509 2.87568498458979 21.4542133213592 4905930.93058046 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2130-Feb-14 22:11 < 00:01 Earth 0.278164957394325 0.278164338018079 0.278165576771146 6.03818424893903 6.03659767382162 2499071.424500241 0.068557234994634 26.0192726639573 2.30565012339298 32.3954247884604 4648943.58455531 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2137-Jan-25 14:12 < 00:01 Earth 0.149462327195174 0.149462261656733 0.149462392736769 5.81427778006122 5.81121088161595 2501608.091591558 0.0473344387426922 19.4925662964448 1.93947250997025 -84.9385859529067 5309653.01087492 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2144-Jan-03 10:26 < 00:01 Earth 0.296579970616863 0.29657927332183 0.296580667912906 5.79436064751844 5.79280996413579 2504141.934973072 0.101340953711624 28.0264392927668 2.35266029127376 -30.8815250012295 4506840.67738474 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2150-Nov-12 07:12 < 00:01 Earth 0.460944479910049 0.460944175949185 0.460944783875647 4.1744980937046 4.17311315191954 2506646.799877954 0.465826086236794 4.67942325663815 2.75992629694476 -22.2097727091362 5819375.55713645 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2167-Mar-16 05:30 < 00:01 Earth 0.377434203893454 0.377433464103087 0.377434943683913 4.02624538481237 4.02449164380491 2512614.729438519 0.409574220348518 25.8127156455834 2.87731393204014 31.9935782037727 3586843.21605063 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2174-Feb-03 01:31 < 00:01 Earth 0.188400738967896 0.188400055171127 0.188401422769266 6.00554646111513 6.00319107344332 2515130.562865118 0.0688759565207032 32.1540611811623 1.94365975270892 49.4787518102561 5233650.59143237 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2181-Jan-17 20:55 < 00:01 Earth 0.19801036575073 0.198009579697782 0.198011151807841 5.98983920106927 5.98759226491705 2517671.371298792 0.0797233497265273 33.5851117081423 2.08607709785807 -45.6285415032119 4811977.73588946 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46
2187-Dec-06 23:28 < 00:01 Earth 0.38731324386638 0.387312462804245 0.387314024928463 3.98339209109895 3.98166469820681 2520185.477989236 0.503030769791273 23.9079648001445 2.12668707326904 -33.845267052033 5149706.90966366 T 452 CATAB v2.0c-linF95 2014-Nov-16 04:46:30 2014-Nov-16 04:46

Alternate Designations
 1898 DQ = 1956 PC 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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