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JPL Small-Body Database Browser
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524 Fidelio (A904 ED)
Classification: Main-belt Asteroid          SPK-ID: 2000524
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 77 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1285631679545976 3.3804e-08  
a 2.634173284701429 8.5937e-09 au
q 2.295515622278845 8.8837e-08 au
i 8.228993560532452 4.236e-06 deg
node 326.6839832590339 2.6274e-05 deg
peri 79.75735264019985 3.1394e-05 deg
M 158.4562458162591 1.7708e-05 deg
tp 2458313.159713233508
(2018-Jul-13.65971323)
7.6076e-05 TDB
period 1561.58251737747
4.28
7.6418e-06
2.092e-08
d
yr
n .2305353678040569 1.1281e-09 deg/d
Q 2.972830947124013 9.6986e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2759  
   data-arc span      42301 days (115.81 yr)  
   first obs. used      1904-03-15  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43541  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 17:30:46  

Additional Information
 Earth MOID = 1.32178 au 
 Jupiter MOID = 2.4287 au 
 T_jup = 3.372 
[ 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 MPO502158 IRAS observations used: 3
diameter diameter 65.527 km 0.957 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 14.198 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Koff, R.A. (2006) Minor Planet Bull. 33, 31-33.]
[Wang, X.-b.; Gu, S.-h.; Li, X.-j. (2010) Earth, Moon, and Planets 106, 97-104.]
[Marciniak, A.; Pilcher, F.; Oszkiewicz, D.; Santana-Ros, T.; et al. (2015) Planet. Space Sci. 118, 256-266.]
geometric albedo albedo 0.048   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.722   0.032 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=7.92, mean=11.38, max.=13.29) deg.
U-B UB 0.316   0.051 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=7.92, mean=11.38, max.=13.29) deg.
Tholen spectral type spec_T XC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

524 Fidelio (A904 ED)          Discovered 1904-Mar-14 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A904 ED = 1953 UT 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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