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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3105641621156353 2.295e-08  
a 2.866223480431665 8.1721e-09 au
q 1.976077186795245 6.7314e-08 au
i 10.52180025123382 6.4618e-07 deg
node 162.5742007378142 2.3972e-06 deg
peri 155.3218601015751 2.1333e-06 deg
M 314.0724140816083 2.5592e-06 deg
tp 2459426.617730876241
(2021-Jul-31.11773088)
1.3188e-05 TDB
period 1772.407181603012
4.85
7.5802e-06
2.075e-08
d
yr
n .2031135981261407 8.6867e-10 deg/d
Q 3.756369774068085 1.071e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3234  
   data-arc span      49465 days (135.43 yr)  
   first obs. used      1885-10-09  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42355  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:30:29  

Additional Information
 Earth MOID = .966842 au 
 Jupiter MOID = 1.63924 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 9.93   n/a E2021B10  
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. 2020-October); 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 1.75444169309527 1.7544410374779 1.7544423487226 1.052486953151 0.377032883733855 2426377.627021660 1.26604233630447 3771.47136945546 181.312555729987 -4.78965729366185 2821260.36960706 T 44 CATAB v2.0f-lin.ifort 2021-Apr-12 10:32:54 2021-Apr-12 10:32
1955-Dec-15 10:43 < 00:01 Jupiter 1.63898196239805 1.63898169912608 1.63898222567328 1.97366817940996 1.69167673954249 2435456.946278522 0.7121922505488 132.654443092764 11.1310688258012 -89.1483834913096 12444949.5338194 T 44 CATAB v2.0f-lin.ifort 2021-Apr-12 10:32:54 2021-Apr-12 10:32
1980-Oct-21 11:28 < 00:01 Jupiter 1.99565283402158 1.99565242131531 1.99565324672831 2.55441691215328 2.38247311963841 2444533.978074769 0.442090943432402 54.4371558476639 4.0734817792812 -72.7169120944528 11281182.9130687 T 44 CATAB v2.0f-lin.ifort 2021-Apr-12 10:32:54 2021-Apr-12 10:32
2038-May-10 20:58 < 00:01 Jupiter 1.6560240326096 1.65602386515136 1.65602420006785 1.64261561056625 1.2943055444744 2465554.373536965 0.341925915674063 85.5689068314571 25.60034719613 85.5086465668622 10674390.6528504 T 44 CATAB v2.0f-lin.ifort 2021-Apr-12 10:32:54 2021-Apr-12 10:32
2063-Feb-26 07:36 < 00:01 Jupiter 1.71482770276124 1.71482721227867 1.71482819324946 2.22284523888466 1.98825560596627 2474611.816900103 0.692713928549642 167.323448551735 5.27902315947604 -83.8673256178208 15550381.2038722 T 44 CATAB v2.0f-lin.ifort 2021-Apr-12 10:32:54 2021-Apr-12 10:32
2120-Aug-29 02:27 00:02 Jupiter 1.87280570262583 1.8728045604972 1.87280684479725 1.10680850811687 0.56610582790968 2495614.601792649 1.74968963875312 830.720550424028 177.577102109043 -54.6269921169928 8292411.50817694 T 44 CATAB v2.0f-lin.ifort 2021-Apr-12 10:32:54 2021-Apr-12 10:32
2145-Jul-27 04:14 00:02 Jupiter 1.61588770845618 1.61588753096489 1.61588788594766 2.01021631353463 1.72991375272039 2504712.676304410 1.66898640713418 247.060704383582 16.9699350343064 84.6005373094208 11722281.0167765 T 44 CATAB v2.0f-lin.ifort 2021-Apr-12 10:32:54 2021-Apr-12 10:32
2170-May-16 20:22 00:02 Jupiter 1.85063782688534 1.85063607741397 1.85063957638238 2.40520991930532 2.20672842510287 2513772.348662311 2.20238471888955 371.00178191624 5.0468330482829 -78.5280702050307 14002160.1581785 T 44 CATAB v2.0f-lin.ifort 2021-Apr-12 10:32:54 2021-Apr-12 10:32

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