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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 441 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2226333871958019 1.1296e-08  
a 1.457965049245366 3.7901e-10 AU
q 1.133373351918776 1.6607e-08 AU
i 10.82897570100868 2.2538e-06 deg
node 304.3352521536078 8.8167e-06 deg
peri 178.7833340166054 9.9527e-06 deg
M 119.4458903658659 4.1843e-06 deg
tp 2456587.152377371493
(2013-Oct-21.65237737)
7.4656e-06 JED
period 643.0120275465858
1.76
2.5073e-07
6.865e-10
d
yr
n .5598651107251928 2.1831e-10 deg/d
Q 1.782556746571955 4.6339e-10 AU
  Orbit Determination Parameters
   # obs. used (total)      5113  
   # delay obs. used      1  
   # Doppler obs. used      3  
   data-arc span      18530 days (50.73 yr)  
   first obs. used      1963-07-15  
   last obs. used      2014-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .43594  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:11:37  

Additional Information
 Earth MOID = .148916 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. 2013-Sep-12) 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 0.314929528132927 0.314929014786058 0.314930041480658 5.57861540036035 5.57709858890932 2415380.562246788 0.0857608831244995 21.5156525428945 2.39917533527899 -31.1393537873832 4620256.76421428 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
1907-Nov-05 03:31 < 00:01 Earth 0.471485742948585 0.471485605537885 0.471485880358791 4.39449434691854 4.39320817672557 2417884.646196970 0.296177850225606 3.96293579126003 2.74704047499524 -4.27376536038867 6547714.49539328 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
1917-Apr-20 21:19 < 00:01 Earth 0.499257049297897 0.49925694678718 0.49925715180887 4.81677943185209 4.81567132574284 2421339.388377403 0.216002452369151 4.34012399563472 3.21471139340427 13.5578082321122 6979326.34927566 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
1924-Mar-05 22:13 < 00:01 Earth 0.359786225197652 0.359785860312158 0.359786590082547 4.59606488927615 4.59445328718513 2423850.425532675 0.139532273872068 14.3825690652004 2.62784931235216 27.3114803780539 3798796.1600733 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
1931-Jan-30 04:07 < 00:01 Earth 0.1740730142175 0.174072744707737 0.174073283728987 5.92081954416691 5.91823375014372 2426371.671223352 0.0332455918762834 13.1573986747548 1.85299918602296 53.4405786089578 5322447.8488753 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
1938-Jan-13 22:04 < 00:01 Earth 0.215005483864056 0.215005170501671 0.215005797227432 6.08405462904046 6.08201738792528 2428912.419540266 0.0318025400294774 13.9155524677179 2.16240822530138 -42.3518540012907 4868644.17599577 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
1944-Nov-27 01:41 < 00:01 Earth 0.403009230077765 0.403008992182524 0.403009467971383 3.62609871175234 3.62427495476029 2431421.569912643 0.232223856959837 7.12471926286741 2.19024171022699 -31.852905803706 5012790.3715709 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
1961-Apr-04 09:08 < 00:01 Earth 0.442492040887724 0.442491935908203 0.442492145868042 3.70783554529209 3.70621118797252 2437393.880355590 0.164835259860163 4.73075568598487 2.25529572178346 8.22844565679144 4567676.19651791 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
1968-Feb-11 13:46 < 00:01 Earth 0.266271304480247 0.266271110185946 0.2662714987746 6.0668869037184 6.06523729425683 2439898.073412890 0.0274501631057747 8.15037941859384 2.07637158830726 26.7105707593307 4619073.80750338 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
1975-Jan-23 07:39 < 00:01 Earth 0.15113425743052 0.151134236675142 0.151134278185941 5.82530964899854 5.82228243388252 2442435.819051300 0.0182762487644064 5.10113163551802 1.89892183300556 -86.304743401758 5503330.58350309 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
1981-Dec-29 08:05 < 00:01 Earth 0.308489384807748 0.308489254917906 0.308489514697047 5.66527327365882 5.66374848477537 2444967.836507350 0.028449990180598 6.33649453829946 2.39364413987211 -28.6106442826487 5087422.55435743 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
1988-Nov-06 14:56 < 00:01 Earth 0.467640227061549 0.467640157741497 0.46764029638132 4.30590164600823 4.30457820942753 2447472.122255527 0.0816772052659745 3.80430820115796 2.67661048648958 -5.39038608098197 6656450.70886366 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2005-Mar-08 22:07 < 00:01 Earth 0.365567257995798 0.365567197691973 0.365567318299979 4.41229534177698 4.41064314485091 2453438.421509635 0.0430510199247548 5.12884379490303 1.88846021809869 4.97983017490212 4017455.08226106 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2012-Jan-31 11:01 < 00:01 Earth 0.178675898049823 0.178675827688203 0.178675968411817 5.94519771141826 5.94268887858012 2455957.958757394 0.0144797421453055 3.67777502371435 1.78454412276826 39.3595882112984 5192425.19839883 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2019-Jan-15 06:01 < 00:01 Earth 0.208598633534521 0.208598539773526 0.208598727295105 6.04491918459495 6.04280576210785 2458498.750802518 0.0189600833955627 4.55847730004845 2.1367651115637 -37.704639970472 4978516.88101686 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2025-Nov-30 02:18 < 00:01 Earth 0.39764739058465 0.397647294842366 0.397647486325955 3.72885340922743 3.72705601396732 2461009.595552478 0.0950031112199933 4.4887879038415 1.68940303206569 -15.7653818200539 5056996.66698107 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2042-Apr-06 19:02 < 00:01 Earth 0.446141842435657 0.446141768107305 0.44614191676501 3.7252262102362 3.72362266863115 2466981.292720213 0.168540724338508 4.40243847723836 2.43019220002015 6.80370066184382 4881620.14622215 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2049-Feb-12 05:38 < 00:01 Earth 0.272555540895629 0.272555319800798 0.272555761990006 6.05906524301338 6.05745159225311 2469484.734557065 0.0271304450939654 9.94111411821756 2.28433995317541 31.861041952563 4796166.61539782 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2056-Jan-24 11:03 < 00:01 Earth 0.149782196817392 0.149782149014993 0.149782244619974 5.8207596352597 5.81770269781937 2472021.960385561 0.023332550576716 7.96760467024904 1.95998916823867 -80.9106037870691 5227951.26425893 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2062-Dec-31 08:25 < 00:01 Earth 0.302953290294289 0.302952990732053 0.302953589857106 5.7322487100682 5.73071419982563 2474554.850493091 0.0508759405362504 12.2980597883242 2.33505804249783 -28.6606743989472 4505502.87197106 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2069-Nov-08 21:29 < 00:01 Earth 0.464728063366453 0.46472795848057 0.464728168253839 4.2454139617744 4.24406325055693 2477059.395102410 0.208684074431655 3.85789697320189 2.64839839435795 -7.21280725840618 6470794.05742303 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2086-Mar-11 22:55 < 00:01 Earth 0.371310323140117 0.371309945082911 0.371310701198541 4.22586031362767 4.22416188430565 2483026.454770165 0.18558415245762 14.6024466969027 2.85613759418252 30.6112316923928 3696526.78163369 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2093-Jan-31 15:47 < 00:01 Earth 0.182464184132949 0.182463850423845 0.182464517843238 5.9749164101095 5.97247190052941 2485544.157528769 0.036839703051266 16.6742802571677 1.94676682967231 52.1926729979713 5253440.18304248 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2100-Jan-16 11:39 < 00:01 Earth 0.203878817576842 0.203878372517294 0.203879262637402 6.01492051600011 6.01274737043158 2488084.985240946 0.0465941016157431 18.6781921487156 2.10998770718056 -43.1470407816917 4726857.35653718 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2106-Dec-04 02:22 < 00:01 Earth 0.392290935926386 0.392290516282753 0.392291355571264 3.85303679843079 3.85127360358831 2490597.598789419 0.310657113066088 12.6234916213863 2.09634139102989 -32.47585386036 5073797.93610243 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2123-Apr-10 05:51 < 00:01 Earth 0.449703136178392 0.449702928797614 0.449703343562421 3.7537288019056 3.75215004637163 2496568.744059780 0.455162249042591 4.90965430294479 2.88735078247019 21.2697472043867 4887000.31619417 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2130-Feb-14 22:11 < 00:01 Earth 0.278165055756143 0.278164436210451 0.278165675302159 6.03818382977911 6.03659725511264 2499071.424516578 0.0685811929742613 26.0314920327884 2.30783676348977 32.4007779132279 4645248.65549357 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2137-Jan-25 14:12 < 00:01 Earth 0.149462318336343 0.14946225271016 0.149462383966066 5.81427779373164 5.81121089511176 2501608.091599288 0.0473788697605666 19.4995352871911 1.94116539601935 -84.9344698259804 5304988.93019218 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2144-Jan-03 10:26 < 00:01 Earth 0.296579853265748 0.29657915574499 0.296580550787002 5.79436181786508 5.79281113418206 2504141.934997061 0.101392655119005 28.037870160838 2.35456948483291 -30.8804782962199 4503086.38483573 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2150-Nov-12 07:12 < 00:01 Earth 0.460944401125483 0.460944098186418 0.460944704063928 4.17449682500328 4.17311188256042 2506646.799899630 0.466115711051132 4.68310414963834 2.76968628593394 -22.0688501410442 5802314.45813079 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2167-Mar-16 05:30 < 00:01 Earth 0.377434331613725 0.377433591590092 0.377435071638106 4.02624220450524 4.02448846270548 2512614.729487476 0.409792002895196 25.8264012854328 2.88487043805826 32.0020092872468 3578485.32286501 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2174-Feb-03 01:31 < 00:01 Earth 0.188400859798828 0.188400175811601 0.188401543791064 6.00554699556703 6.00319160961584 2515130.562879220 0.068912306118666 32.1668656518493 1.94512070280917 49.4817458037364 5229960.56244852 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2181-Jan-17 20:55 < 00:01 Earth 0.19801022949082 0.198009443131171 0.198011015854953 5.98983881367899 5.98759187583489 2517671.371315088 0.0797774708736109 33.5982593305091 2.08840628623316 -45.626430052692 4806448.15421768 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11
2187-Dec-06 23:28 < 00:01 Earth 0.387313103923777 0.387312322608602 0.387313885238901 3.98339426448362 3.9816668719101 2520185.478038797 0.503261507561346 23.9175762306864 2.12967656786464 -33.8510104983926 5143317.91875057 T 441 CATAB v2.0c-linF95 2014-Jun-16 13:11:50 2014-Jun-16 13:11

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