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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 472 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2226061527928115 1.127e-08  
a 1.457946954650592 3.8009e-10 au
q 1.133398992099828 1.6568e-08 au
i 10.82819093043802 2.2454e-06 deg
node 304.3301876414188 8.777e-06 deg
peri 178.7990621331176 9.8931e-06 deg
M 207.3421249364721 4.1792e-06 deg
tp 2457873.163951058099
(2017-Apr-29.66395106)
7.4815e-06 JED
period 643.00005708888
1.76
2.5145e-07
6.884e-10
d
yr
n .5598755334950745 2.1894e-10 deg/d
Q 1.782494917201356 4.6471e-10 au
  Orbit Determination Parameters
   # obs. used (total)      5213  
   # delay obs. used      1  
   # Doppler obs. used      3  
   data-arc span      19279 days (52.78 yr)  
   first obs. used      1963-07-15  
   last obs. used      2016-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .43746  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-27 05:48:39  

Additional Information
 Earth MOID = .147632 au 
 Jupiter MOID = 3.29338 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 LCDB (Rev. 2016-February); Warner et al., 2009 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]
[Koehn, B.W.; Bowell, E.L.G.; Skiff, B.A.; Sanborn, J.J.; et al. (2014) Minor Planet Bul. 41, 286-300.]
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
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 0.314929549809014 0.314929037019613 0.31493006259897 5.57861467406797 5.57709786252383 2415380.562238011 0.0856596725541212 21.4953462390043 2.39069601993268 -31.1383846173325 4636123.67123578 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
1907-Nov-05 03:31 < 00:01 Earth 0.471485753722151 0.471485616940955 0.471485890503776 4.39449464828999 4.39320847821465 2417884.646193260 0.295988321277622 3.9279886562339 2.73390098999753 -4.67485172020043 6609465.89285799 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
1917-Apr-20 21:19 < 00:01 Earth 0.499257039068492 0.49925693714252 0.499257140994086 4.81677934299525 4.81567123684284 2421339.388375989 0.215933319844755 4.300896677731 3.20075013240838 14.0034640739517 7049571.42916823 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
1924-Mar-05 22:13 < 00:01 Earth 0.359786212357496 0.359785847796852 0.359786576917833 4.59606509319425 4.59445349111724 2423850.425528454 0.139408116225569 14.3669689090435 2.61599665202799 27.3516301376601 3819005.55849346 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
1931-Jan-30 04:07 < 00:01 Earth 0.174073006491238 0.174072737402038 0.17407327558145 5.92081949634617 5.91823370218729 2426371.671220904 0.0332024837976742 13.1413068105904 1.8470791901856 53.4591066607834 5340634.70346812 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
1938-Jan-13 22:04 < 00:01 Earth 0.215005491773517 0.215005178760047 0.215005804787041 6.08405450277993 6.08201726169741 2428912.419537650 0.0317499442824643 13.8995301841112 2.15405673373759 -42.3427173230112 4886334.53133724 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
1944-Nov-27 01:41 < 00:01 Earth 0.403009233895542 0.403008996293631 0.403009471497704 3.62609871056881 3.62427495359344 2431421.569910605 0.231991277405458 7.11202874309818 2.1798501407877 -31.9276763580174 5041453.54555539 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
1961-Apr-04 09:08 < 00:01 Earth 0.442492037971095 0.442491933292755 0.442492142650231 3.70783545777863 3.70621110041 2437393.880354804 0.164741471503959 4.69796896606683 2.24453451332986 8.42934241689609 4606011.35703317 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
1968-Feb-11 13:46 < 00:01 Earth 0.266271302088055 0.266271108061318 0.266271496114843 6.06688673602202 6.06523712650003 2439898.073413303 0.0274062225961744 8.13950519534677 2.06963163871877 26.7564171983651 4637796.30462739 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
1975-Jan-23 07:39 < 00:01 Earth 0.151134257509578 0.151134236728327 0.151134278290872 5.82530958662767 5.82228237148081 2442435.819050965 0.0182132727173218 5.09304513026082 1.89255419607775 -86.2530909631591 5521562.22502982 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
1981-Dec-29 08:05 < 00:01 Earth 0.308489385220955 0.308489255506155 0.308489514935214 5.66527320054816 5.66374841164707 2444967.836506526 0.0283656019422478 6.32836612093223 2.38519914063907 -28.6280467483191 5103364.50735127 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
1988-Nov-06 14:56 < 00:01 Earth 0.467640226499196 0.467640157426606 0.467640295573109 4.30590159870557 4.30457816210872 2447472.122256094 0.0815342184178893 3.77267545513096 2.66343009366836 -5.81841784388952 6716718.10172421 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2005-Mar-08 22:07 < 00:01 Earth 0.365567257860299 0.3655671975709 0.36556731814978 4.41229504063473 4.41064284359524 2453438.421511512 0.0429615237272455 5.11062933286607 1.87664881752296 5.02928698919171 4034201.64235582 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2012-Jan-31 11:01 < 00:01 Earth 0.178675897762522 0.178675827467186 0.178675968058233 5.94519770815005 5.9426888753065 2455957.958755740 0.014432798327924 3.67327139595287 1.77964769723689 39.469521869764 5211564.82775635 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2019-Jan-15 06:01 < 00:01 Earth 0.208598635058773 0.208598541231489 0.208598728886626 6.04491905943879 6.04280563692335 2458498.750800881 0.018887054758487 4.55714044290444 2.1286249797238 -37.7500633829058 4995765.01039217 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2025-Nov-30 02:18 < 00:01 Earth 0.397647392856554 0.397647297061549 0.397647488652298 3.72885339279514 3.72705599753737 2461009.595550762 0.094882974629904 4.48102352386643 1.68005576510477 -15.8300067017566 5079043.22020352 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2042-Apr-06 19:02 < 00:01 Earth 0.446141834649055 0.446141759945417 0.44614190935276 3.72522627204059 3.72362273043417 2466981.292721539 0.168030016888461 4.37397520869794 2.41636893196401 7.0746266044654 4919355.14363085 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2049-Feb-12 05:38 < 00:01 Earth 0.272555527339673 0.272555306199788 0.272555748480046 6.05906521203891 6.05745156119012 2469484.734554717 0.0271069698532958 9.93286341783621 2.27505845932764 31.854705301396 4813144.9220488 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2056-Jan-24 11:03 < 00:01 Earth 0.149782199015087 0.149782151278064 0.149782246752756 5.82075958113684 5.81770264371293 2472021.960384337 0.0232625551407112 7.96462939259755 1.9527437683362 -80.9246324331371 5247514.82592501 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2062-Dec-31 08:25 < 00:01 Earth 0.302953310760897 0.302953011251084 0.302953610270805 5.73224842699052 5.73071391677584 2474554.850488160 0.0508135408165089 12.2903727714493 2.32692970192338 -28.6751083532848 4521644.59600864 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2069-Nov-08 21:29 < 00:01 Earth 0.464728077387281 0.464727971665033 0.464728183110288 4.24541441934498 4.2440637083139 2477059.395096287 0.208388250647252 3.83278566955279 2.63364684699395 -7.63816580678779 6519789.54926746 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2086-Mar-11 22:55 < 00:01 Earth 0.371310292825642 0.371309914833697 0.371310670817324 4.22586087122046 4.22416244198395 2483026.454760294 0.185397941319329 14.5867527200407 2.83971054883582 30.6011250045072 3715234.99422827 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2093-Jan-31 15:47 < 00:01 Earth 0.182464155343126 0.182463821687729 0.182464488999951 5.9749161208277 5.97247161074343 2485544.157526833 0.0367978716192459 16.6648732314819 1.93978476849886 52.186343859198 5271776.20914346 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2100-Jan-16 11:39 < 00:01 Earth 0.203878855807807 0.203878410976888 0.203879300639738 6.01492046100092 6.01274731582009 2488084.985234336 0.046526580759821 18.6674932546582 2.10201591953729 -43.1558127290596 4745321.45037664 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2106-Dec-04 02:22 < 00:01 Earth 0.392290975095902 0.392290555562223 0.39229139462805 3.85303636250081 3.85127316763484 2490597.598776481 0.31041437229819 12.6148322795678 2.08574888867979 -32.46841803356 5097198.49334825 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2123-Apr-10 05:51 < 00:01 Earth 0.449703096150481 0.449702887097321 0.449703305200083 3.75372821637844 3.75214946045755 2496568.744048400 0.454483450335639 4.89116759927696 2.86614691718794 21.5948593830525 4925318.10992936 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2130-Feb-14 22:11 < 00:01 Earth 0.278164988173841 0.278164368930763 0.278165607417496 6.03818397128784 6.03659739627304 2499071.424506112 0.0685336225264772 26.0108420614975 2.29867176986708 32.3940906328394 4662649.5047427 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2137-Jan-25 14:12 < 00:01 Earth 0.149462324348532 0.149462258810925 0.14946238989029 5.81427773912458 5.81121084059928 2501608.091593537 0.0473084934919961 19.4873277668924 1.93417306307199 -84.9417709492892 5324225.75710661 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2144-Jan-03 10:26 < 00:01 Earth 0.296579935417425 0.296579238289087 0.296580632546259 5.79436085642733 5.79281017291653 2504141.934978944 0.101303066529974 28.0176850169176 2.34612791384515 -30.8848215073061 4519597.18213931 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2150-Nov-12 07:12 < 00:01 Earth 0.460944456317081 0.460944151577568 0.460944761060539 4.1744976963213 4.17311275433346 2506646.799884497 0.46563427869892 4.67116284264505 2.74742763679157 -22.3144519725724 5840470.97827871 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2167-Mar-16 05:30 < 00:01 Earth 0.377434239387682 0.377433499769567 0.377434979005889 4.02624433038523 4.02449058908324 2512614.729453402 0.409410225052261 25.8032866595485 2.86809661090028 31.991332532235 3597838.48526309 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2174-Feb-03 01:31 < 00:01 Earth 0.188400772046112 0.188400088399211 0.188401455697365 6.00554654649593 6.00319115927124 2515130.562869063 0.0688510385132994 32.1447091023005 1.93827912620457 49.4773916252914 5248039.57181202 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2181-Jan-17 20:55 < 00:01 Earth 0.198010329324215 0.198009543496025 0.198011115156371 5.98983900498481 5.98759206834558 2517671.371302004 0.0796902367159932 33.5751086694647 2.08054877640234 -45.6310379338379 4824925.32407121 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49
2187-Dec-06 23:28 < 00:01 Earth 0.387313207434048 0.387312426561577 0.387313988307107 3.98339255427631 3.98166516142258 2520185.478000260 0.502866633519025 23.8998430746755 2.12018134559255 -33.8452673985759 5165265.8253194 T 472 CATAB v2.0c-linF95 2016-Apr-27 05:49:01 2016-Apr-27 05:49

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