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JPL Small-Body Database Browser
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217 Eudora
Classification: Main-belt Asteroid          SPK-ID: 2000217
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3104544830517177 3.8046e-08  
a 2.866251702994027 9.009e-09 au
q 1.976411012244911 1.1019e-07 au
i 10.5215529239737 4.253e-06 deg
node 162.5734282651327 2.1991e-05 deg
peri 155.3124468614587 2.2638e-05 deg
M 273.4475671870164 7.1817e-06 deg
tp 2459426.634498062693
(2021-Jul-31.13449806)
3.6251e-05 TDB
period 1772.433359950073
4.85
8.3565e-06
2.288e-08
d
yr
n .2031105981948685 9.5761e-10 deg/d
Q 3.756092393743143 1.1806e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2812  
   data-arc span      49059 days (134.32 yr)  
   first obs. used      1885-10-09  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44043  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:21:09  

Additional Information
 Earth MOID = .969122 au 
 Jupiter MOID = 1.63929 au 
 T_jup = 3.203 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.9   n/a MPO439062  
diameter diameter 65.392 km 0.293 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 25.272 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Buchheim, R.K.; Roy, R.; Behrend, R. (2007) Minor Planet Bull. 34, 13-14.]
[Pilcher, F. (2010) Minor Planet Bull. 37, 148-149.]
[Pilcher, F. (2011) Minor Planet Bull. 38, 183-185.]
[Pilcher, F. (2013) Minor Planet Bull. 40, 85-87.]
[Durech, J.; Hanus, J. (2018) Astron. Astrophys. 620, A91.]
geometric albedo albedo 0.049   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
Tholen spectral type spec_T X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a medium resolution spectrum published by Chapman and Gaffey (1979)

217 Eudora          Discovered 1880-Aug-30 by Coggia, J. at Marseille
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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
1931-Feb-05 03:03 00:01 Jupiter 1.75444189554758 1.75444104791623 1.75444274319231 1.0524899546414 0.377041402994715 2426377.626904323 1.35990850157912 6924.1838146592 413.184179606858 -3.19576677750706 956240.767713508 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:21:22 2020-Feb-22 15:21
1955-Dec-15 10:42 < 00:01 Jupiter 1.63898181109956 1.63898139372955 1.63898222847264 1.97366949900292 1.6916782492142 2435456.946153252 0.758211450953651 161.82699074306 55.642492658195 89.4064245462458 1925804.71082035 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:21:22 2020-Feb-22 15:21
1980-Oct-21 11:28 < 00:01 Jupiter 1.99565258360993 1.99565203915675 1.99565312806356 2.55441620799706 2.38247234132505 2444533.977933924 0.473300988436295 76.2500588524286 20.5850746544808 -77.2683554080245 2709483.96491482 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:21:22 2020-Feb-22 15:21
2038-May-10 20:58 < 00:01 Jupiter 1.65602400201777 1.65602353399605 1.65602447004016 1.6426181114351 1.29430870886645 2465554.373571483 0.443075555220123 145.924808090516 122.191256326284 -38.6818500590853 1409269.07926395 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:21:22 2020-Feb-22 15:21
2063-Feb-26 07:36 < 00:01 Jupiter 1.71482757977366 1.71482698807916 1.7148281714745 2.2228459313649 1.98825636096088 2474611.816807702 0.801187039067396 193.402534221742 32.9254935356181 -85.0620290566262 2296874.18266273 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:21:22 2020-Feb-22 15:21
2120-Aug-29 02:26 00:02 Jupiter 1.87280594257825 1.87280459842182 1.87280728679078 1.10681183870798 0.566112437555936 2495614.601635478 1.96155603313476 1474.77889095592 714.095022527149 -22.8673927370024 1199370.74797988 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:21:22 2020-Feb-22 15:21
2145-Jul-27 04:14 00:02 Jupiter 1.61588764929131 1.61588725041456 1.61588804816853 2.01021746518246 1.72991507820414 2504712.676087763 1.86316581173187 277.517005861198 55.8656878856495 84.667654115271 1893644.8028617 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:21:22 2020-Feb-22 15:21
2170-May-16 20:22 00:02 Jupiter 1.85063751260507 1.8506355738899 1.85063945135138 2.40520948805277 2.20672791869351 2513772.348370641 2.44313819926201 412.09195467047 25.2201243691074 -78.7986216089624 2527006.40765239 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:21:22 2020-Feb-22 15:21

Alternate Designations
 A914 RA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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