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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 449 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .222633807499412 1.1284e-08  
a 1.457960681627074 3.8109e-10 AU
q 1.133369343892001 1.6592e-08 AU
i 10.82899937143476 2.2523e-06 deg
node 304.3345368652922 8.7947e-06 deg
peri 178.7956777458477 9.9223e-06 deg
M 231.4013670552788 4.1753e-06 deg
tp 2457230.194711490774
(2015-Jul-26.69471149)
7.4675e-06 JED
period 643.0091381470859
1.76
2.5211e-07
6.902e-10
d
yr
n .5598676265121001 2.1951e-10 deg/d
Q 1.782552019362148 4.6594e-10 AU
  Orbit Determination Parameters
   # obs. used (total)      5137  
   # delay obs. used      1  
   # Doppler obs. used      3  
   data-arc span      18725 days (51.27 yr)  
   first obs. used      1963-07-15  
   last obs. used      2014-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .43727  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-22 06:16:35  

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 0.314929538591312 0.314929025574053 0.314930051608938 5.57861511219535 5.57709830071633 2415380.562242945 0.0857147687396812 21.5052071330542 2.39764400970035 -31.1381234347052 4623027.26636964 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
1907-Nov-05 03:31 < 00:01 Earth 0.471485749178762 0.471485612310809 0.471485886046684 4.39449459477079 4.39320842466738 2417884.646194496 0.296108933829062 3.94690677896344 2.74374333052132 -4.5014187570983 6576208.62930785 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
1917-Apr-20 21:19 < 00:01 Earth 0.499257043297138 0.499256941160571 0.49925714543415 4.81677915840713 4.81567105222163 2421339.388374961 0.21599800449562 4.32337453272288 3.20958409021162 13.8724137492306 7011746.31499879 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
1924-Mar-05 22:13 < 00:01 Earth 0.359786216627706 0.359785851917394 0.359786581337711 4.5960651506111 4.59445354857336 2423850.425528686 0.139474015621742 14.3758160990402 2.62371844692628 27.329743926461 3806328.95899444 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
1931-Jan-30 04:07 < 00:01 Earth 0.174073008039937 0.17407273878501 0.174073277295879 5.92081950339405 5.91823370926126 2426371.671222225 0.0332271440994431 13.1489475980628 1.85208184738899 53.4487445775158 5325638.30611219 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
1938-Jan-13 22:04 < 00:01 Earth 0.215005490629917 0.215005177483453 0.215005803776433 6.08405463929919 6.08201739825156 2428912.419539349 0.0317783558449798 13.9069202259089 2.15991190382022 -42.3460950677996 4873687.66616905 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
1944-Nov-27 01:41 < 00:01 Earth 0.403009234559976 0.403008996878464 0.403009472242181 3.62609873298074 3.62427497601967 2431421.569910775 0.232132099929438 7.11931923667375 2.1870067508873 -31.8874960316049 5023044.76456672 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
1961-Apr-04 09:08 < 00:01 Earth 0.442492038136343 0.442491933299289 0.442492142973434 3.70783540168392 3.70621104429131 2437393.880353836 0.164824560636781 4.71588332863977 2.25126246379168 8.34900282792491 4585909.61124382 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
1968-Feb-11 13:46 < 00:01 Earth 0.266271301720721 0.266271107587717 0.266271495854116 6.0668868510951 6.06523724160212 2439898.073412627 0.0274343378386371 8.14585233188602 2.07521075805197 26.7253674954636 4623420.36326189 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
1975-Jan-23 07:39 < 00:01 Earth 0.151134257533005 0.151134236778827 0.151134278287183 5.82530962800628 5.8222824128814 2442435.819051013 0.018245024171332 5.09676033792532 1.89763507023822 -86.2791733084974 5506925.69313436 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
1981-Dec-29 08:05 < 00:01 Earth 0.308489385695669 0.308489255951822 0.308489515438974 5.66527323467828 5.66374844578872 2444967.836506703 0.0284198598010271 6.33353947435567 2.39185599316088 -28.6043381823148 5090166.72451239 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
1988-Nov-06 14:56 < 00:01 Earth 0.467640227539323 0.467640158412121 0.467640296665753 4.30590156049691 4.30457812389126 2447472.122256759 0.081670770573391 3.79042135131406 2.67319453780482 -5.62544468573749 6683179.06210787 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2005-Mar-08 22:07 < 00:01 Earth 0.365567258192597 0.365567197829608 0.365567318555531 4.41229518207955 4.41064298509455 2453438.421510515 0.0430365235559936 5.12221213675632 1.88240503358841 4.98960676260604 4023427.30289757 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2012-Jan-31 11:01 < 00:01 Earth 0.17867589797165 0.178675827661458 0.178675968281985 5.94519776054052 5.94268892772202 2455957.958755765 0.0144603263696531 3.67649621435253 1.78348147497538 39.3814026754635 5196551.41377427 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2019-Jan-15 06:01 < 00:01 Earth 0.208598634251806 0.208598540489971 0.208598728013606 6.04491909712485 6.04280567461442 2458498.750801202 0.0189203663396605 4.55837419317724 2.1341334600486 -37.7104881644872 4983411.18449433 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2025-Nov-30 02:18 < 00:01 Earth 0.397647392142436 0.397647296363979 0.397647487920977 3.72885346806496 3.72705607284026 2461009.595552380 0.0949808248410806 4.48801055565667 1.68617482851139 -15.7876459517513 5063200.67840683 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2042-Apr-06 19:02 < 00:01 Earth 0.446141837510113 0.446141762897853 0.446141912124893 3.72522622206517 3.72362268044751 2466981.292721117 0.16826717948544 4.3906023881675 2.42405581973368 6.9674445772584 4898419.99164275 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2049-Feb-12 05:38 < 00:01 Earth 0.272555530880346 0.272555309759427 0.27255575200117 6.05906536182702 6.0574517110391 2469484.734554215 0.0271260254113671 9.93684846458526 2.28215981760467 31.8486603950871 4799052.81661534 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2056-Jan-24 11:03 < 00:01 Earth 0.149782198583984 0.149782150847987 0.149782246320163 5.82075962459526 5.81770268718538 2472021.960385093 0.0232923392188562 7.96606969755556 1.95819253964699 -80.9179715352603 5232843.07306478 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2062-Dec-31 08:25 < 00:01 Earth 0.302953309477129 0.302953009958569 0.302953608994997 5.73224858540288 5.73071407522411 2474554.850489651 0.0508459606931685 12.2945416858015 2.33331984890996 -28.6632074615229 4508950.52109864 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2069-Nov-08 21:29 < 00:01 Earth 0.464728078069409 0.464727972725584 0.46472818341593 4.24541442764254 4.24406371661608 2477059.395096533 0.208531167138464 3.84787533385423 2.64395929268399 -7.4459214735583 6491118.44233263 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2086-Mar-11 22:55 < 00:01 Earth 0.371310290264335 0.371309912236138 0.371310668293749 4.22586082941714 4.2241624001521 2483026.454760843 0.185491761763978 14.5939397821953 2.84921875054745 30.6003947998641 3703803.11300034 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2093-Jan-31 15:47 < 00:01 Earth 0.182464151397398 0.182463817716541 0.182464485079683 5.9749161882922 5.97247167818267 2485544.157525765 0.0368175848866436 16.6692885111347 1.94538534080245 52.1875875668886 5256797.73022459 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2100-Jan-16 11:39 < 00:01 Earth 0.203878862016948 0.203878417087641 0.203879306947764 6.01492062130415 6.01274747624745 2488084.985235353 0.0465543838436643 18.6726564492074 2.10759899624854 -43.1506221967817 4732466.37645747 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2106-Dec-04 02:22 < 00:01 Earth 0.392290982993473 0.392290563422081 0.392291402563332 3.85303623999514 3.85127304510858 2490597.598773108 0.310530185981205 12.6199989970726 2.09311365164841 -32.4660711283803 5079970.64691099 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2123-Apr-10 05:51 < 00:01 Earth 0.449703088807609 0.449702880484919 0.449703297126728 3.7537280624306 3.75214930641915 2496568.744045670 0.454780952904927 4.90326802258239 2.87683930524024 21.4347239534102 4904142.0150768 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2130-Feb-14 22:11 < 00:01 Earth 0.278164973957297 0.278164354569677 0.278165593344828 6.03818421343202 6.03659763839976 2499071.424502609 0.0685590035448404 26.0200307659893 2.30590185519093 32.3957198028363 4648480.17941735 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2137-Jan-25 14:12 < 00:01 Earth 0.149462325734763 0.149462260191996 0.149462391282068 5.8142777853409 5.81121088686845 2501608.091592927 0.0473374245492223 19.4929810193711 1.93954933607344 -84.9383986004937 5309441.13014949 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2144-Jan-03 10:26 < 00:01 Earth 0.296579954575669 0.296579257268012 0.296580651883307 5.79436075740303 5.79281007396592 2504141.934975791 0.101343805240882 28.0271660266726 2.35268935014145 -30.8815580760596 4506787.89003093 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2150-Nov-12 07:12 < 00:01 Earth 0.460944470177779 0.460944166324383 0.460944774028523 4.17449785391277 4.17311291201889 2506646.799881827 0.465848614640562 4.6800029597807 2.760759437238 -22.191986570937 5817385.21605531 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2167-Mar-16 05:30 < 00:01 Earth 0.377434219337093 0.377433479530486 0.377434959145503 4.02624463612656 4.02449089486461 2512614.729448389 0.409587874761772 25.813519131169 2.87766384799223 31.994368511467 3586492.48122683 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2174-Feb-03 01:31 < 00:01 Earth 0.18840075266358 0.188400068854698 0.188401436477065 6.00554655687117 6.00319116940818 2515130.562866180 0.0688785635844189 32.1548485404116 1.94385582989185 49.4788755983627 5233133.79162794 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2181-Jan-17 20:55 < 00:01 Earth 0.198010351085788 0.198009565015186 0.198011137160554 5.98983913377292 5.987592197429 2517671.371300009 0.0797265205657298 33.5859091080553 2.08609384684353 -45.6284674371754 4811932.38063918 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17
2187-Dec-06 23:28 < 00:01 Earth 0.38731322976234 0.387312448690004 0.387314010836298 3.98339225980531 3.98166486692344 2520185.477993123 0.50304682204787 23.9085793905117 2.12733661867937 -33.8457083175576 5148217.14880362 T 449 CATAB v2.0c-linF95 2014-Oct-22 06:16:52 2014-Oct-22 06:17

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