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217 Eudora (A880 QA)
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3104545261438917 1.9323e-08  
a 2.866251702581641 8.745e-09 au
q 1.976410888447534 5.7704e-08 au
i 10.52154767870481 3.8338e-07 deg
node 162.5735082549121 9.8483e-07 deg
peri 155.312356067085 2.3911e-06 deg
M 273.4475775918174 5.3482e-06 deg
tp 2459426.634446743459
(2021-Jul-31.13444674)
2.7477e-05 TDB
period 1772.433359567556
4.85
8.1116e-06
2.221e-08
d
yr
n .2031105982387027 9.2955e-10 deg/d
Q 3.756092516715747 1.146e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3291  
   data-arc span      49193 days (134.68 yr)  
   first obs. used      1885-10-09  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43006  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:09:22  

Additional Information
 Earth MOID = .969121 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 (A880 QA)          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 1.75444186110635 1.75444114372479 1.75444257850009 1.05248592958315 0.377030141986812 2426377.626831823 1.31760190702405 3870.98040955786 188.441621612619 -5.10389694963396 2803198.33925523 T 40 CATAB v2.0f-lin.ifort 2020-Jun-23 15:09:45 2020-Jun-23 15:09
1955-Dec-15 10:42 < 00:01 Jupiter 1.6389819369517 1.63898170626478 1.6389821676417 1.97366727744878 1.69167568079953 2435456.946172583 0.733259225302863 127.279902718101 8.49692252953936 89.8470150367971 19020438.4936891 T 40 CATAB v2.0f-lin.ifort 2020-Jun-23 15:09:45 2020-Jun-23 15:09
1980-Oct-21 11:28 < 00:01 Jupiter 1.9956527322681 1.99565231437698 1.99565315015969 2.55441618602321 2.3824723310358 2444533.978027401 0.452588212537819 55.5952401239077 3.83391404029649 -72.4993089693864 20438341.9728238 T 40 CATAB v2.0f-lin.ifort 2020-Jun-23 15:09:45 2020-Jun-23 15:09
2038-May-10 20:58 < 00:01 Jupiter 1.65602402449861 1.65602386893976 1.65602418005755 1.64261506680475 1.29430485026278 2465554.373571619 0.377397285362078 79.4043253968678 24.4696513042444 80.5227202940113 11787425.7499713 T 40 CATAB v2.0f-lin.ifort 2020-Jun-23 15:09:45 2020-Jun-23 15:09
2063-Feb-26 07:36 < 00:01 Jupiter 1.71482774673128 1.71482728453126 1.71482820893695 2.22284471555897 1.98825502589218 2474611.816924971 0.742105027739582 166.81837188768 4.13077265966908 -84.4998416270847 29812070.6441044 T 40 CATAB v2.0f-lin.ifort 2020-Jun-23 15:09:45 2020-Jun-23 15:09
2120-Aug-29 02:26 00:02 Jupiter 1.87280580005811 1.872804640447 1.8728069597151 1.10680826621396 0.566105392109039 2495614.601642210 1.8507302968942 890.36520721102 229.892447664231 -50.5634466061424 5623293.03848018 T 40 CATAB v2.0f-lin.ifort 2020-Jun-23 15:09:45 2020-Jun-23 15:09
2145-Jul-27 04:14 00:02 Jupiter 1.61588772750036 1.61588757760709 1.61588787739362 2.01021551401297 1.72991282554727 2504712.676188304 1.7723027362661 256.387729116347 13.6901716242413 84.1171635640221 17515721.3344915 T 40 CATAB v2.0f-lin.ifort 2020-Jun-23 15:09:45 2020-Jun-23 15:09
2170-May-16 20:22 00:02 Jupiter 1.85063772438081 1.85063592370036 1.85063952508955 2.40520918925726 2.20672761675767 2513772.348537687 2.32637719157081 388.043786811138 3.96965242780935 -78.7271290877667 28729638.0856923 T 40 CATAB v2.0f-lin.ifort 2020-Jun-23 15:09:45 2020-Jun-23 15:09

Alternate Designations
 A880 QA = A914 RA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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