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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 453 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .222633807502651 1.1284e-08  
a 1.457960681669577 3.8108e-10 AU
q 1.133369343920319 1.6591e-08 AU
i 10.82899937604612 2.2522e-06 deg
node 304.3345369121611 8.7927e-06 deg
peri 178.7956777049314 9.919e-06 deg
M 231.4013669876031 4.1735e-06 deg
tp 2457230.194711621696
(2015-Jul-26.69471162)
7.4645e-06 JED
period 643.0091381752036
1.76
2.521e-07
6.902e-10
d
yr
n .5598676264876179 2.195e-10 deg/d
Q 1.782552019418836 4.6592e-10 AU
  Orbit Determination Parameters
   # obs. used (total)      5154  
   # delay obs. used      1  
   # Doppler obs. used      3  
   data-arc span      18773 days (51.40 yr)  
   first obs. used      1963-07-15  
   last obs. used      2014-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4372  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Dec-08 05:15:33  

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 0.314929536429064 0.314929023435777 0.314930049422719 5.5786151919869 5.57709838051916 2415380.562243884 0.0857120285983569 21.5043774156822 2.3975462782279 -31.1383590666901 4623245.47703363 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
1907-Nov-05 03:31 < 00:01 Earth 0.471485748412058 0.471485611586516 0.471485885237284 4.3944944295063 4.39320825935242 2417884.646196115 0.296106256635307 3.94464621458063 2.74345282589596 -4.52684394509738 6580181.03602207 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
1917-Apr-20 21:19 < 00:01 Earth 0.499257043692012 0.49925694158265 0.499257145801313 4.81677939156585 4.81567128543488 2421339.388376970 0.215997967638165 4.32137646698903 3.20901858178125 13.9197542542698 7015838.5910008 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
1924-Mar-05 22:13 < 00:01 Earth 0.359786216850058 0.359785852158376 0.359786581541905 4.59606507491844 4.59445347285514 2423850.425529477 0.139469033787289 14.3754788557957 2.62349448510576 27.3306353975192 3806726.24049541 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
1931-Jan-30 04:07 < 00:01 Earth 0.174073007933095 0.174072738698399 0.174073277168805 5.92081948129516 5.91823368715113 2426371.671222755 0.0332249978962797 13.1483057568599 1.85186772645551 53.4490757538481 5326272.36124642 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
1938-Jan-13 22:04 < 00:01 Earth 0.215005491770293 0.215005178641045 0.215005804900061 6.08405465991279 6.08201741888287 2428912.419539456 0.0317774705950629 13.90620859086 2.15988683565298 -42.345922888551 4873734.47013229 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
1944-Nov-27 01:41 < 00:01 Earth 0.403009235878202 0.403008998201083 0.403009473555572 3.62609873356631 3.6242749766115 2431421.569910729 0.232126909747401 7.11850045877893 2.18625091667387 -31.8952298657889 5025348.14153362 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
1961-Apr-04 09:08 < 00:01 Earth 0.442492036855536 0.442491932026731 0.442492141684378 3.70783542739334 3.7062110700073 2437393.880354215 0.164824080500772 4.71459584819942 2.25064234476821 8.36749689675885 4587835.76680669 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
1968-Feb-11 13:46 < 00:01 Earth 0.266271300138954 0.266271106022181 0.266271494255226 6.0668869911537 6.06523738168901 2439898.073411047 0.0274315307068096 8.1456098864546 2.07489960815677 26.726237177037 4624104.18489181 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
1975-Jan-23 07:39 < 00:01 Earth 0.15113425778029 0.151134237025973 0.151134278534765 5.82530963434006 5.82228241922343 2442435.819051216 0.0182425822824743 5.096393245666 1.89754569185245 -86.278802039594 5507183.17614907 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
1981-Dec-29 08:05 < 00:01 Earth 0.308489386475237 0.308489256736371 0.30848951621356 5.66527329004635 5.66374850117555 2444967.836507120 0.0284195102286784 6.33320570343297 2.39179325154598 -28.6054996994853 5090453.6811259 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
1988-Nov-06 14:56 < 00:01 Earth 0.467640227950711 0.467640158840557 0.46764029706089 4.30590143811622 4.30457800147412 2447472.122257974 0.0816663274455481 3.78835477741632 2.67289920738342 -5.65318673376684 6687085.28340616 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2005-Mar-08 22:07 < 00:01 Earth 0.365567258092725 0.365567197729797 0.365567318455875 4.41229514723969 4.41064295024119 2453438.421510896 0.0430352207630667 5.12219535835988 1.88181039615527 4.98956201940741 4023505.80017094 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2012-Jan-31 11:01 < 00:01 Earth 0.178675897295592 0.178675826992591 0.178675967598362 5.94519766941046 5.942688836544 2455957.958757505 0.0144569807601371 3.67644466956583 1.78326445684729 39.3837147121066 5197183.63102554 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2019-Jan-15 06:01 < 00:01 Earth 0.208598636401777 0.208598542636715 0.208598730166429 6.04491901106687 6.04280558854812 2458498.750799628 0.0189188095740422 4.55832734725946 2.13409941994867 -37.7106621776826 4983494.26469423 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2025-Nov-30 02:18 < 00:01 Earth 0.397647395313743 0.39764729952212 0.397647491106511 3.72885333854574 3.72705594327292 2461009.595548826 0.094974727841968 4.48736944819669 1.68558847573188 -15.7956076381001 5065071.8361995 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2042-Apr-06 19:02 < 00:01 Earth 0.446141833473435 0.446141758824382 0.446141908121039 3.72522613320262 3.72362259153219 2466981.292719215 0.168242143312503 4.38951191099785 2.4232563382065 6.99237572459707 4900222.5909255 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2049-Feb-12 05:38 < 00:01 Earth 0.272555524585279 0.272555303465313 0.272555745705373 6.05906532359434 6.05745167275896 2469484.734553845 0.0271243891308314 9.93656375386939 2.28181690862486 31.8478359306877 4799610.92276642 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2056-Jan-24 11:03 < 00:01 Earth 0.149782199577309 0.149782151844696 0.149782247310106 5.82075962999323 5.81770269260647 2472021.960384540 0.0232889947805783 7.96596940650059 1.95808900742384 -80.9184982773535 5233126.6869196 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2062-Dec-31 08:25 < 00:01 Earth 0.302953317010868 0.302953017491214 0.302953616530616 5.73224851934262 5.73071400918432 2474554.850488230 0.0508446006349476 12.294224142636 2.33325756948627 -28.6632204248645 4509072.13237604 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2069-Nov-08 21:29 < 00:01 Earth 0.464728083112042 0.464727977707589 0.464728188515317 4.2454143435595 4.24406363252094 2477059.395097029 0.208512329274681 3.84623313035065 2.64356776612547 -7.47505972403744 6494292.6943676 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2086-Mar-11 22:55 < 00:01 Earth 0.371310281305577 0.371309903284237 0.37131065932574 4.2258611878062 4.22416275864427 2483026.454756293 0.185484902077728 14.5933878405495 2.84882967741446 30.5987601391127 3704118.07953793 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2093-Jan-31 15:47 < 00:01 Earth 0.18246414335829 0.182463809681 0.182464477037009 5.97491621129311 5.97247170108527 2485544.157523830 0.0368151198065348 16.6689224108031 1.9451398386027 52.1873564682067 5257440.41755702 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2100-Jan-16 11:39 < 00:01 Earth 0.203878872098513 0.20387842717656 0.203879317021478 6.01492066797827 6.01274752304592 2488084.985234401 0.04655188777076 18.6722531700356 2.10757135034597 -43.1507655337846 4732541.58903993 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2106-Dec-04 02:22 < 00:01 Earth 0.392290992619665 0.39229057304312 0.392291412197455 3.85303609048296 3.85127289557123 2490597.598769344 0.310517499284167 12.6196431068177 2.0922328211269 -32.4656766394523 5081932.06261482 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2123-Apr-10 05:51 < 00:01 Earth 0.449703081219112 0.449702872796723 0.449703289642142 3.75372781948647 3.75214906334615 2496568.744041393 0.454748309333616 4.90273291605015 2.87548056407805 21.4570273845298 4906215.23286445 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2130-Feb-14 22:11 < 00:01 Earth 0.278164962488591 0.27816434311423 0.278165581863528 6.03818423206037 6.03659765696759 2499071.424501076 0.0685569343872555 26.0191505209599 2.30558275557839 32.3954106374156 4649075.55329863 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2137-Jan-25 14:12 < 00:01 Earth 0.149462326690122 0.149462261151992 0.149462392232171 5.81427778806015 5.81121088960873 2501608.091591598 0.0473340128080118 19.4925023581043 1.93944401921709 -84.9385985770361 5309731.09628514 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2144-Jan-03 10:26 < 00:01 Earth 0.296579965038992 0.296579267745707 0.296580662333287 5.79436063778527 5.79280995437085 2504141.934973524 0.101340483554414 28.0263258796698 2.35263243679203 -30.8815113333657 4506891.51531785 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2150-Nov-12 07:12 < 00:01 Earth 0.460944476345604 0.460944172359617 0.460944780328942 4.17449797722355 4.17311303538912 2506646.799879793 0.465822244309186 4.67929438526226 2.75978681981391 -22.21253418132 5819724.10980265 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2167-Mar-16 05:30 < 00:01 Earth 0.377434211055078 0.377433471267754 0.377434950842493 4.02624498035645 4.02449123920602 2512614.729443758 0.409572348705176 25.812580396655 2.87726628775625 31.9934667148558 3586890.40563222 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2174-Feb-03 01:31 < 00:01 Earth 0.188400745314268 0.188400061519228 0.188401429113662 6.00554654587377 6.00319115831457 2515130.562865063 0.0688755526762517 32.153938755766 1.94360446046813 49.4787483893021 5233799.10422014 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2181-Jan-17 20:55 < 00:01 Earth 0.19801035869923 0.198009572648856 0.198011144753766 5.98983911522439 5.98759217895993 2517671.371298426 0.0797229000274732 33.5849907795379 2.08606468414087 -45.6285461955713 4812006.48714994 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15
2187-Dec-06 23:28 < 00:01 Earth 0.387313237372848 0.38731245631243 0.387314018433853 3.98339227139702 3.98166487855413 2520185.477992647 0.503027959512045 23.9078745894177 2.12653278073666 -33.8451991160843 5150065.65706871 T 453 CATAB v2.0c-linF95 2014-Dec-08 05:15:49 2014-Dec-08 05:15

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