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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 462 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2226786588694712 1.1278e-08  
a 1.457877746420397 3.8258e-10 au
q 1.133239485051856 1.6583e-08 au
i 10.82860240585357 2.2478e-06 deg
node 304.3298185742141 8.7907e-06 deg
peri 178.7980365013777 9.9127e-06 deg
M 95.36114805250125 4.1779e-06 deg
tp 2457230.186506574978
(2015-Jul-26.68650657)
7.4532e-06 JED
period 642.9542731517037
1.76
2.5309e-07
6.929e-10
d
yr
n .5599154015033022 2.204e-10 deg/d
Q 1.782516007788937 4.6777e-10 au
  Orbit Determination Parameters
   # obs. used (total)      5181  
   # 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      .43793  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Nov-30 15:28:59  

Additional Information
 Earth MOID = .148887 au 
 Jupiter MOID = 3.29421 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-December); 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 0.314929545269119 0.314929032289966 0.314930058248641 5.57861502897677 5.57709821750728 2415380.562241482 0.0856969667859089 21.5013136078382 2.39297841771523 -31.1396604772452 4631968.03005976 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
1907-Nov-05 03:31 < 00:01 Earth 0.471485751996205 0.471485614912952 0.47148588908017 4.3944945134613 4.39320834334177 2417884.646194524 0.296027159430754 3.93724264383822 2.73773416524972 -4.52923638828358 6592595.05719039 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
1917-Apr-20 21:19 < 00:01 Earth 0.499257040956533 0.499256938745955 0.499257143167561 4.81677927137236 4.81567116520766 2421339.388375295 0.215935922992251 4.31244817839736 3.20455243147472 13.8827690346874 7029068.42469467 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
1924-Mar-05 22:13 < 00:01 Earth 0.359786213031855 0.359785848375622 0.359786577688254 4.59606507435305 4.59445347227244 2423850.425529135 0.13944143205537 14.3727470511714 2.62006962385105 27.3348815668711 3811700.5611375 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
1931-Jan-30 04:07 < 00:01 Earth 0.174073006572473 0.174072737346219 0.174073275800446 5.92081951806746 5.91823372391928 2426371.671221326 0.0332137495217595 13.1468206192929 1.84805171982922 53.4526428286412 5337397.31553805 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
1938-Jan-13 22:04 < 00:01 Earth 0.2150054925767 0.215005179441285 0.215005805713102 6.08405465972644 6.0820174187041 2428912.419539270 0.0317717338550576 13.9045197797453 2.15707573777174 -42.3471015578955 4880027.81507386 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
1944-Nov-27 01:41 < 00:01 Earth 0.403009235498825 0.403008997763935 0.403009473233966 3.6260986963668 3.62427493939154 2431421.569910545 0.23205252385806 7.11489455185403 2.1816372613555 -31.9095466503357 5035866.59240492 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
1961-Apr-04 09:08 < 00:01 Earth 0.442492037722632 0.442491932913204 0.442492142530865 3.70783549327971 3.70621113592573 2437393.880354691 0.164752656477037 4.70978727678984 2.24686865824983 8.37557089288671 4593076.47949058 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
1968-Feb-11 13:46 < 00:01 Earth 0.266271301667532 0.266271107557966 0.266271495777488 6.06688694445397 6.06523733498605 2439898.073411547 0.0274138129306002 8.14340678704704 2.07057266491385 26.7420005829523 4633939.59168183 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
1975-Jan-23 07:39 < 00:01 Earth 0.151134257708115 0.151134236933914 0.15113427848236 5.82530962447314 5.82228240934993 2442435.819050936 0.0182341907223449 5.09578706900661 1.89428413476403 -86.2748615310239 5516638.92127074 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
1981-Dec-29 08:05 < 00:01 Earth 0.308489385461067 0.308489255664009 0.308489515258924 5.66527307096414 5.66374828202935 2444967.836505272 0.0283991643567001 6.32996662148525 2.38767983273453 -28.6281623230219 5099369.68137671 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
1988-Nov-06 14:56 < 00:01 Earth 0.467640226911314 0.467640157741936 0.467640296081216 4.30590159695629 4.30457816036007 2447472.122255922 0.0815365991479888 3.78066535970208 2.66731458724965 -5.6702667288935 6700889.834841 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2005-Mar-08 22:07 < 00:01 Earth 0.365567258423994 0.365567198158243 0.365567318689793 4.41229528295491 4.41064308600874 2453438.421509630 0.0429842125098804 5.11778549732385 1.88017962738301 5.00527764405949 4027559.05932999 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2012-Jan-31 11:01 < 00:01 Earth 0.178675898243302 0.178675827938267 0.178675968548479 5.9451976879726 5.94268885512728 2455957.958757048 0.0144416556952875 3.67467250516231 1.78042635621929 39.4429308162434 5207691.19705846 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2019-Jan-15 06:01 < 00:01 Earth 0.208598634914358 0.20859854109356 0.208598728735121 6.04491912535712 6.04280570286328 2458498.750801438 0.0189152430491604 4.55732758734015 2.13160538664031 -37.7356007308726 4989659.85245989 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2025-Nov-30 02:18 < 00:01 Earth 0.397647393395385 0.397647297589598 0.397647489199788 3.72885339224993 3.72705599699434 2461009.595551092 0.0948998246576194 4.48121262859142 1.68222865204317 -15.8263449264687 5076166.75139435 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2042-Apr-06 19:02 < 00:01 Earth 0.446141835419482 0.446141760861902 0.446141909978066 3.72522625611199 3.72362271450148 2466981.292720665 0.168206617291793 4.38350552350138 2.41992148371623 6.99876273804358 4907084.79935475 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2049-Feb-12 05:38 < 00:01 Earth 0.2725555279331 0.272555306822063 0.272555749043683 6.0590652456304 6.05745159479408 2469484.734554858 0.027109146137315 9.9353244289318 2.27696483025774 31.8588396645352 4809921.09918643 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2056-Jan-24 11:03 < 00:01 Earth 0.149782199097094 0.149782151334806 0.149782246859566 5.8207596232618 5.8177026858617 2472021.960384765 0.0232846177567395 7.9654923703092 1.95484036838567 -80.9196547584592 5241826.25434684 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2062-Dec-31 08:25 < 00:01 Earth 0.302953311635097 0.302953012090712 0.302953611178791 5.7322485885433 5.7307140783763 2474554.850489402 0.0508336672552295 12.2928363450278 2.32933952875964 -28.6705289701681 4516802.5182908 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2069-Nov-08 21:29 < 00:01 Earth 0.464728078937971 0.464727973495418 0.464728184380085 4.2454144817551 4.24406377074839 2477059.395095287 0.20848146036306 3.83850510035163 2.63821988797929 -7.49966654205321 6507766.55508598 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2086-Mar-11 22:55 < 00:01 Earth 0.371310289639151 0.3713099116582 0.371310667621319 4.22586098671835 4.2241625575137 2483026.454759267 0.185463308350013 14.5916883184493 2.84591718666239 30.6041614100691 3708091.46181211 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2093-Jan-31 15:47 < 00:01 Earth 0.182464151997934 0.182463818331189 0.182464485666259 5.9749161918503 5.97247168175027 2485544.157525628 0.0368090279335921 16.6676746941976 1.94108270685457 52.189162515074 5268469.40115005 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2100-Jan-16 11:39 < 00:01 Earth 0.203878860266601 0.203878415360382 0.203879305173832 6.01492057631577 6.01274743122415 2488084.985234909 0.0465489551872289 18.6709746666283 2.10487016495065 -43.1523831143681 4738671.29889814 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2106-Dec-04 02:22 < 00:01 Earth 0.392290979627643 0.392290560022566 0.392291399231189 3.85303624510302 3.85127305020368 2490597.598774030 0.310487533949242 12.6171539387785 2.08738477156157 -32.4756680158879 5094320.60140416 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2123-Apr-10 05:51 < 00:01 Earth 0.44970309444511 0.449702886002299 0.449703302884355 3.75372810200992 3.75214934603491 2496568.744046009 0.45471871033584 4.89689530307585 2.87209823594857 21.4961492820668 4913777.99279068 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2130-Feb-14 22:11 < 00:01 Earth 0.278164985067853 0.278164365736295 0.278165604400398 6.03818412147244 6.03659754647939 2499071.424504715 0.0685475395591954 26.0172550148753 2.30052948025879 32.3969411419367 4659289.99910031 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2137-Jan-25 14:12 < 00:01 Earth 0.149462324673072 0.149462259102691 0.149462390246989 5.81427777947911 5.81121088098177 2501608.091593388 0.0473305862902472 19.4911714403535 1.93611677318213 -84.938938620728 5318857.96066738 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2144-Jan-03 10:26 < 00:01 Earth 0.296579937196073 0.296579239933552 0.296580634459407 5.79436093195387 5.79281024847259 2504141.934979309 0.101330572776049 28.0244173223712 2.34870819090613 -30.8831587273293 4514493.29622032 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2150-Nov-12 07:12 < 00:01 Earth 0.460944456898625 0.460944152692955 0.460944761106991 4.17449767606555 4.17311273407274 2506646.799884498 0.465795252136216 4.67299917489776 2.75446912982491 -22.2579133028169 5831056.92990241 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2167-Mar-16 05:30 < 00:01 Earth 0.377434243747556 0.377433504022744 0.377434983473113 4.02624431950781 4.02449057822134 2512614.729454473 0.409541156730664 25.8104662059655 2.87453956937329 31.9952847348223 3590371.28470126 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2174-Feb-03 01:31 < 00:01 Earth 0.188400776976423 0.188400093224112 0.188401460733337 6.00554662392572 6.00319123679306 2515130.562869374 0.0688697165060871 32.1516166700297 1.93947320886474 49.4791755837353 5244953.05544651 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2181-Jan-17 20:55 < 00:01 Earth 0.198010323334453 0.198009537334982 0.19801110933789 5.98983907114611 5.98759213446372 2517671.371303584 0.0797180871051429 33.582650412027 2.08333410067692 -45.6291777924733 4818342.21826576 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29
2187-Dec-06 23:28 < 00:01 Earth 0.387313201132294 0.387312420093774 0.387313982172434 3.98339274531245 3.98166535251349 2520185.478004192 0.502991180146006 23.9055043379849 2.12125334410652 -33.8487401686548 5163134.76456547 T 462 CATAB v2.0c-linF95 2015-Nov-30 15:29:13 2015-Nov-30 15:29

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