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JPL Small-Body Database Browser
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58 Concordia
Classification: Main-belt Asteroid          SPK-ID: 2000058
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 116 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04259806854825336 3.5436e-08  
a 2.699484162740328 6.5357e-09 au
q 2.584491351330992 9.5613e-08 au
i 5.065946274578882 3.8968e-06 deg
node 161.1065019095359 4.5397e-05 deg
peri 31.12141924243489 6.532e-05 deg
M 27.03760005069249 4.7296e-05 deg
tp 2458878.829514367048
(2020-Jan-30.32951437)
0.00021279 TDB
period 1620.017114897028
4.44
5.8834e-06
1.611e-08
d
yr
n .2222198745245247 8.0703e-10 deg/d
Q 2.814476974149665 6.8142e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3237  
   data-arc span      56971 days (155.98 yr)  
   first obs. used      1864-02-09  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45343  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:15:50  

Additional Information
 Earth MOID = 1.58585 au 
 Jupiter MOID = 2.14186 au 
 T_jup = 3.361 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.0   n/a MPO473760 IRAS observations used: 7
diameter diameter 106.517 km 0.741 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 9.895 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Wang, X.-B. (2002) Earth, Moon, and Planets 91, 25-30.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Stephens, R.D. (2006) Minor Planet Bull. 33, 100-101.]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pilcher, F. (2016) Minor Planet Bull. 43, 304-306.]
[Pilcher, F. (2019) Minor Planet Bull. 46, 360-363.]
geometric albedo albedo 0.044   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.690   0.043 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=4.43, mean=8.43, max.=13.31) deg.
U-B UB 0.370   0.025 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=4.43, mean=8.43, max.=13.31) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B Ch   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)

58 Concordia          Discovered 1860-Mar-24 by Luther, R. at Dusseldorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1928 XE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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