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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 458 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2226338073109678 1.1283e-08  
a 1.457960681567809 3.8107e-10 AU
q 1.133369344120674 1.659e-08 AU
i 10.8289993701657 2.2521e-06 deg
node 304.3345371635228 8.7912e-06 deg
peri 178.7956772122569 9.9165e-06 deg
M 231.4013672840452 4.1724e-06 deg
tp 2457230.194711068160
(2015-Jul-26.69471107)
7.4625e-06 JED
period 643.0091381078788
1.76
2.5209e-07
6.902e-10
d
yr
n .5598676265462376 2.195e-10 deg/d
Q 1.782552019014944 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-Mar-09 13:28:40  

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-May); 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 0.314929510723426 0.314928997746167 0.314930023701055 5.57861555284178 5.57709874134836 2415380.562249808 0.0857100183155332 21.5037878548245 2.39740615307191 -31.1385955984293 4623541.02023686 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
1907-Nov-05 03:31 < 00:01 Earth 0.47148573298537 0.471485596190144 0.471485869781137 4.39449421814115 4.3932080478833 2417884.646199004 0.29610444193627 3.94307331844053 2.74319432172646 -4.54122968766147 6582917.66373724 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
1917-Apr-20 21:19 < 00:01 Earth 0.499257057167922 0.499256955078294 0.49925715925819 4.81677969659659 4.81567159056572 2421339.388380326 0.215997915953826 4.32003613889308 3.20855113960234 13.9497425290769 7018566.55882632 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
1924-Mar-05 22:13 < 00:01 Earth 0.359786238781253 0.359785874101616 0.359786603461055 4.59606462657932 4.59445302445701 2423850.425535920 0.139465317376261 14.3752232037542 2.62330910233717 27.3313271183557 3807049.30000699 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
1931-Jan-30 04:07 < 00:01 Earth 0.174073023170222 0.174072753948917 0.174073292392978 5.92081953572152 5.91823374182766 2426371.671224699 0.0332233711081121 13.1478722034196 1.85167841905095 53.4492510793495 5326825.14095086 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
1938-Jan-13 22:04 < 00:01 Earth 0.215005472746197 0.215005159628724 0.21500578586419 6.08405460004195 6.08201735881169 2428912.419541672 0.0317767258248734 13.9057139817581 2.15982092023757 -42.3458876458223 4873880.31703568 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
1944-Nov-27 01:41 < 00:01 Earth 0.403009221959047 0.403008984284208 0.403009459633422 3.62609878030538 3.62427502331107 2431421.569914892 0.232123318756958 7.11786672145389 2.18567556945362 -31.901074969786 5027099.65034694 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
1961-Apr-04 09:08 < 00:01 Earth 0.442492043939693 0.442491939117437 0.442492148761984 3.70783557367844 3.70621121638252 2437393.880357023 0.164823556297285 4.71368981304174 2.25017943154409 8.37948288261219 4589160.09493004 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
1968-Feb-11 13:46 < 00:01 Earth 0.266271308012771 0.266271113906292 0.26627150211964 6.0668869599146 6.06523735049021 2439898.073412265 0.0274293200939764 8.14543135598018 2.0746463101582 26.7269259345561 4624656.62163535 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
1975-Jan-23 07:39 < 00:01 Earth 0.151134257063041 0.151134236308086 0.15113427781804 5.8253096403003 5.8222824251724 2442435.819052648 0.0182408278816082 5.09614612897358 1.89743796776397 -86.2787330449762 5507495.41789766 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
1981-Dec-29 08:05 < 00:01 Earth 0.308489383663833 0.308489253928188 0.308489513399608 5.66527327746057 5.66374848857249 2444967.836507345 0.0284189071665485 6.33293944107528 2.39168739240962 -28.6068821719971 5090805.81804752 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
1988-Nov-06 14:56 < 00:01 Earth 0.46764022656348 0.467640157464657 0.46764029566153 4.30590170849363 4.30457827193073 2447472.122254977 0.0816624987510258 3.78690474541086 2.67264269277218 -5.66915115718545 6689791.68449633 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2005-Mar-08 22:07 < 00:01 Earth 0.36556725818175 0.365567197819434 0.365567318544063 4.41229501009712 4.41064281304765 2453438.421512347 0.0430335664357728 5.12209023478563 1.88141802771956 4.98970548613811 4023633.91104831 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2012-Jan-31 11:01 < 00:01 Earth 0.178675898854329 0.178675828554957 0.17867596915347 5.94519766776847 5.9426888349232 2455957.958757680 0.0144545437196397 3.67639349253671 1.78308765795424 39.3858308450694 5197716.86645111 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2019-Jan-15 06:01 < 00:01 Earth 0.208598631645644 0.208598537878171 0.208598725413082 6.0449190692687 6.04280564672212 2458498.750801236 0.0189176330176029 4.55828089965505 2.1340363929612 -37.7112496090756 4983653.25414511 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2025-Nov-30 02:18 < 00:01 Earth 0.397647388440458 0.397647292638964 0.397647484240973 3.72885342361552 3.72705602835265 2461009.595552249 0.0949691410148883 4.48683597585804 1.68514516166599 -15.801689082525 5066528.93275753 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2042-Apr-06 19:02 < 00:01 Earth 0.446141842283973 0.446141767612382 0.446141916955631 3.72522627988129 3.7236227383057 2466981.292721849 0.168224848258902 4.38874712024483 2.42265989741172 7.00844254447569 4901460.0431322 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2049-Feb-12 05:38 < 00:01 Earth 0.272555539521108 0.272555318401695 0.272555760640064 6.05906537709842 6.05745172636573 2469484.734555088 0.027123097784954 9.93633941515578 2.28154085390459 31.8475257684034 4800100.21933298 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2056-Jan-24 11:03 < 00:01 Earth 0.149782197669029 0.149782149937884 0.149782245400645 5.82075962089244 5.81770268346194 2472021.960386199 0.0232867518823462 7.96589528624157 1.95797752795856 -80.9188232488975 5233428.63622994 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2062-Dec-31 08:25 < 00:01 Earth 0.302953299692791 0.302953000172483 0.30295359921368 5.73224881638739 5.73071430622091 2474554.850492843 0.0508434114544634 12.2939912335433 2.33314904002929 -28.6632877915234 4509276.76506559 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2069-Nov-08 21:29 < 00:01 Earth 0.46472807210148 0.464727966657778 0.464728177546398 4.2454143199618 4.24406360888372 2477059.395097787 0.208498500518471 3.84506755995497 2.64325390624314 -7.49255481052407 6496499.57669897 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2086-Mar-11 22:55 < 00:01 Earth 0.371310295008843 0.371309916993725 0.371310673024613 4.22586081593751 4.22416238668876 2483026.454761600 0.185480095857172 14.5929715173524 2.84853334592718 30.5977824997303 3704383.00010454 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2093-Jan-31 15:47 < 00:01 Earth 0.182464153671614 0.182463819996503 0.182464487348549 5.97491615968619 5.97247164959543 2485544.157526520 0.0368134486333281 16.6686533495314 1.94493161516131 52.1872630015252 5257993.12975871 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2100-Jan-16 11:39 < 00:01 Earth 0.203878863176367 0.203878418260518 0.203879308093726 6.01492057262043 6.0127474275585 2488084.985234496 0.0465501703103221 18.6719649198398 2.10750725718564 -43.1508667353199 4732692.91813321 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2106-Dec-04 02:22 < 00:01 Earth 0.392290985736092 0.39229056615608 0.392291405316286 3.85303615936078 3.85127296444964 2490597.598771735 0.310507909745059 12.6193863954956 2.09154764699528 -32.4654742960042 5083471.75839994 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2123-Apr-10 05:51 < 00:01 Earth 0.449703084408817 0.449702875919099 0.449703292905988 3.75372791546682 3.75214915937808 2496568.744042500 0.454725697539689 4.90234171499397 2.87452348689884 21.4712798288314 4907623.43366039 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2130-Feb-14 22:11 < 00:01 Earth 0.278164966294558 0.278164346929856 0.278165585660247 6.03818406559262 6.0365974904778 2499071.424502987 0.0685554883723093 26.0185203915695 2.30531723319055 32.3952630023333 4649584.50533795 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2137-Jan-25 14:12 < 00:01 Earth 0.149462327057127 0.149462261520589 0.149462392596581 5.81427777999088 5.81121088154274 2501608.091590874 0.0473317460938133 19.4921634115166 1.93932966529652 -84.9387082759307 5310045.07035734 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2144-Jan-03 10:26 < 00:01 Earth 0.296579965474854 0.296579268191552 0.296580662759165 5.7943606019182 5.79280991849645 2504141.934973175 0.101338051500587 28.0257371998124 2.35252703253018 -30.8814758595024 4507086.80875276 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2150-Nov-12 07:12 < 00:01 Earth 0.460944476760378 0.460944172685905 0.460944780837543 4.17449804707035 4.17311310526035 2506646.799878459 0.465803348630065 4.67875972189774 2.75910669972764 -22.225764669651 5821334.31255832 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2167-Mar-16 05:30 < 00:01 Earth 0.377434207375343 0.377433467602072 0.377434947149359 4.02624512854344 4.02449138744048 2512614.729441886 0.409561537731005 25.8119066727161 2.87696362585979 31.9928958415223 3587204.27826168 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2174-Feb-03 01:31 < 00:01 Earth 0.188400740467763 0.188400056683277 0.18840142425685 6.00554649626216 6.00319110862289 2515130.562864726 0.0688735176449071 32.1532872839994 1.94339065994235 49.4786962434994 5234369.42733497 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2181-Jan-17 20:55 < 00:01 Earth 0.198010367237067 0.198009581200874 0.198011153277227 5.98983928081305 5.98759234470763 2517671.371299730 0.0797204068799942 33.5843437901199 2.08599965165118 -45.6285912143843 4812160.27803198 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28
2187-Dec-06 23:28 < 00:01 Earth 0.387313247990849 0.387312466939089 0.387314029043197 3.98339200073527 3.98166460782232 2520185.477987507 0.503014324422055 23.9073778254034 2.12589420364354 -33.8448448579736 5151541.20997647 T 458 CATAB v2.0c-linF95 2015-Mar-09 13:28:54 2015-Mar-09 13:28

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