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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 457 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2226338073266597 1.1283e-08  
a 1.457960681631548 3.8107e-10 AU
q 1.133369344147344 1.659e-08 AU
i 10.82899936977314 2.2521e-06 deg
node 304.3345371634829 8.7912e-06 deg
peri 178.7956772083566 9.9165e-06 deg
M 231.4013672075556 4.1724e-06 deg
tp 2457230.194711219844
(2015-Jul-26.69471122)
7.4625e-06 JED
period 643.0091381500451
1.76
2.5209e-07
6.902e-10
d
yr
n .5598676265095234 2.195e-10 deg/d
Q 1.782552019115751 4.659e-10 AU
  Orbit Determination Parameters
   # obs. used (total)      5173  
   # delay obs. used      1  
   # Doppler obs. used      3  
   data-arc span      18788 days (51.44 yr)  
   first obs. used      1963-07-15  
   last obs. used      2014-12-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .43798  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-14 05:15:17  

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 LCDB (Rev. 2015-Feb); 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 (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 0.314929522017703 0.314929009040974 0.314930034995294 5.57861552393716 5.57709871249028 2415380.562248332 0.0857100179680484 21.5037869689075 2.39740624133406 -31.1385951176716 4623540.94728237 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
1907-Nov-05 03:31 < 00:01 Earth 0.471485740133373 0.471485603336965 0.471485876929289 4.39449438404982 4.39320821386004 2417884.646196869 0.296104408961648 3.94307330434762 2.74319447615008 -4.54122764831602 6582917.97757016 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
1917-Apr-20 21:19 < 00:01 Earth 0.499257050040115 0.499256947950016 0.499257152130155 4.81677940018099 4.8156712940661 2421339.388377238 0.215997936634762 4.32003617981792 3.20855064981547 13.9497428858844 7018566.1505 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
1924-Mar-05 22:13 < 00:01 Earth 0.359786226167429 0.359785861487792 0.359786590847232 4.59606489187984 4.59445328979408 2423850.425532178 0.139465287527438 14.3752235097032 2.62330906907524 27.3313272752872 3807049.40565058 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
1931-Jan-30 04:07 < 00:01 Earth 0.174073014143356 0.174072744922098 0.174073283365629 5.92081949013502 5.91823369608712 2426371.671223708 0.0332233693399736 13.1478712096104 1.85167842913159 53.4492562856091 5326825.15636006 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
1938-Jan-13 22:04 < 00:01 Earth 0.215005484390969 0.21500517127349 0.215005797508968 6.08405452740718 6.08201728626295 2428912.419538867 0.0317767289493091 13.9057136318831 2.15982091987044 -42.3458849016418 4873880.29753154 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
1944-Nov-27 01:41 < 00:01 Earth 0.403009230299846 0.40300899262386 0.40300946797421 3.62609869981526 3.62427494281821 2431421.569910985 0.232123333648125 7.11786518432594 2.18567555699134 -31.901072958199 5027099.68259424 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
1961-Apr-04 09:08 < 00:01 Earth 0.44249203922353 0.442491934401272 0.442492144046586 3.70783548111502 3.70621112376121 2437393.880354746 0.164823560543809 4.71369002185501 2.25017952310509 8.3794847151301 4589159.80780272 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
1968-Feb-11 13:46 < 00:01 Earth 0.266271302657589 0.266271108551113 0.266271496764457 6.06688675022406 6.06523714070945 2439898.073413716 0.027429322351953 8.14543102891327 2.07464621164234 26.7269261384069 4624656.64223988 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
1975-Jan-23 07:39 < 00:01 Earth 0.151134257662927 0.151134236907998 0.1511342784179 5.82530962937139 5.82228241424982 2442435.819051360 0.0182408279449748 5.09614611520799 1.89743796039279 -86.2787315815008 5507495.4451607 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
1981-Dec-29 08:05 < 00:01 Earth 0.308489385396726 0.30848925566108 0.308489515132501 5.6652733916554 5.66374860280663 2444967.836508153 0.0284189057682664 6.33293953363705 2.39168747018627 -28.6068823095492 5090805.80522909 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
1988-Nov-06 14:56 < 00:01 Earth 0.467640227069286 0.467640157970959 0.467640296167336 4.30590163140244 4.30457819481727 2447472.122255712 0.0816625025505896 3.78690476707806 2.67264266500283 -5.6691502965558 6689791.54145642 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2005-Mar-08 22:07 < 00:01 Earth 0.365567258245085 0.365567197882905 0.365567318607401 4.41229523746256 4.41064304049854 2453438.421510109 0.0430335636470716 5.12209028622375 1.88141821074052 4.98970565403252 4023634.03816561 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2012-Jan-31 11:01 < 00:01 Earth 0.17867589820427 0.178675827904898 0.178675968503411 5.94519772869413 5.94268889586546 2455957.958756316 0.0144545434064519 3.67639348569008 1.78308768831441 39.3858313233559 5197716.85590914 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2019-Jan-15 06:01 < 00:01 Earth 0.20859863460447 0.208598540836998 0.208598728371907 6.04491899677251 6.04280557423056 2458498.750799738 0.0189176335259701 4.55828082925939 2.13403635627804 -37.7112484105604 4983653.28494344 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2025-Nov-30 02:18 < 00:01 Earth 0.397647392697422 0.397647296895934 0.39764748849965 3.72885334719683 3.72705595191636 2461009.595549910 0.0949691451426416 4.48683569129054 1.68514514855925 -15.8016877375587 5066528.98225934 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2042-Apr-06 19:02 < 00:01 Earth 0.446141835873589 0.44614176120199 0.446141910543738 3.72522613800344 3.7236225963437 2466981.292718868 0.168224858266817 4.38874728093104 2.42266010265364 7.00844405773043 4901459.64871459 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2049-Feb-12 05:38 < 00:01 Earth 0.272555528415986 0.272555307296581 0.272555749534934 6.05906521583221 6.0574515649908 2469484.734555286 0.0271230991736352 9.93633889554686 2.28154075465125 31.8475270525839 4800100.28330608 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2056-Jan-24 11:03 < 00:01 Earth 0.149782199211349 0.149782151479902 0.149782246943158 5.82075962416627 5.81770268676898 2472021.960384880 0.0232867522562912 7.96589513084634 1.95797753003032 -80.9188171169198 5233428.60305344 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2062-Dec-31 08:25 < 00:01 Earth 0.302953312037828 0.302953012517536 0.302953611558701 5.73224865830217 5.73071414815589 2474554.850490052 0.0508434159577533 12.2939907280025 2.33314903573239 -28.6632871945936 4509276.80392655 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2069-Nov-08 21:29 < 00:01 Earth 0.464728079453738 0.464727974010086 0.464728184898149 4.24541427222928 4.24406356115739 2477059.395097714 0.208498506342031 3.84506749516094 2.64325404179112 -7.49255668844155 6496499.73969656 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2086-Mar-11 22:55 < 00:01 Earth 0.371310285552916 0.371309907538379 0.371310663568668 4.22586123907551 4.22416280995363 2483026.454756282 0.185480031372736 14.5929732338186 2.84853342537847 30.5977829886381 3704383.14055551 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2093-Jan-31 15:47 < 00:01 Earth 0.182464147192958 0.182463813517892 0.182464480869847 5.97491617113777 5.97247166096488 2485544.157525114 0.0368134453317361 16.6686522048234 1.94493161042523 52.1872657979459 5257993.16139846 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2100-Jan-16 11:39 < 00:01 Earth 0.203878868068571 0.203878423152739 0.203879312985912 6.01492063758085 6.01274749259455 2488084.985234647 0.0465501668910602 18.6719642862385 2.10750730914829 -43.1508652076013 4732692.82756375 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2106-Dec-04 02:22 < 00:01 Earth 0.39229098887884 0.39229056929886 0.392291408459003 3.85303611491008 3.85127291999272 2490597.598770588 0.310507903866737 12.6193851458722 2.09154766887535 -32.465474506873 5083471.75576051 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2123-Apr-10 05:51 < 00:01 Earth 0.449703082562731 0.44970287406882 0.449703291055677 3.75372794575326 3.75214918967078 2496568.744042810 0.454725656804661 4.90234150727783 2.87452303058214 21.471272047976 4907623.48917004 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2130-Feb-14 22:11 < 00:01 Earth 0.278164963381419 0.278164344016504 0.278165582747068 6.03818418777399 6.03659761267466 2499071.424501517 0.0685554780800703 26.0185191973832 2.30531724656746 32.3952630537385 4649584.51341298 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2137-Jan-25 14:12 < 00:01 Earth 0.149462327081421 0.149462261545261 0.149462392621264 5.81427778194229 5.81121088349568 2501608.091590934 0.0473317438371772 19.4921622118567 1.93932968534927 -84.9387072002767 5310045.00899965 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2144-Jan-03 10:26 < 00:01 Earth 0.296579967395853 0.296579270112589 0.296580664680127 5.79436059104792 5.79280990763331 2504141.934972859 0.101338047965271 28.0257358582057 2.35252704973111 -30.8814757822413 4507086.79325706 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2150-Nov-12 07:12 < 00:01 Earth 0.460944478322918 0.460944174248495 0.460944782394695 4.17449804366866 4.17311310186223 2506646.799878379 0.465803337404999 4.67875945449216 2.75910681772629 -22.2257684716267 5821334.67223826 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2167-Mar-16 05:30 < 00:01 Earth 0.37743420385628 0.377433464083048 0.377434943630257 4.02624539020359 4.0244916491983 2512614.729438592 0.409561455187979 25.8119100743575 2.87696375439363 31.9928967313454 3587204.36661591 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2174-Feb-03 01:31 < 00:01 Earth 0.188400738369725 0.188400054585261 0.188401422159192 6.0055465060616 6.00319111839994 2515130.562864254 0.0688735160399189 32.1532870667988 1.94339063825243 49.4786971538032 5234369.50467149 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2181-Jan-17 20:55 < 00:01 Earth 0.198010368076306 0.198009582040297 0.198011154115966 5.98983916632997 5.98759223019111 2517671.371297729 0.0797204171499168 33.5843428066261 2.08599956857532 -45.6285910357992 4812160.40392727 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15
2187-Dec-06 23:28 < 00:01 Earth 0.387313247483046 0.387312466431344 0.387314028535336 3.98339208602168 3.98166469314347 2520185.477988977 0.503014285539985 23.9073794296666 2.12589431288209 -33.8448458416627 5151541.16362533 T 457 CATAB v2.0c-linF95 2015-Feb-14 05:15:35 2015-Feb-14 05:15

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