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586 Thekla (A906 DK)
Classification: Main-belt Asteroid          SPK-ID: 2000586
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06353475284331059 3.352e-08  
a 3.040209690740678 1.2027e-08 au
q 2.847050719447632 1.0259e-07 au
i 1.627497377546917 3.5627e-06 deg
node 228.3497544751312 0.00013456 deg
peri 253.2005352559513 0.00013763 deg
M 215.876643403566 2.9295e-05 deg
tp 2459775.649734790706
(2022-Jul-15.14973479)
0.00015821 TDB
period 1936.215691298706
5.30
1.1489e-05
3.146e-08
d
yr
n .1859296986476398 1.1033e-09 deg/d
Q 3.233368662033725 1.2791e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3342  
   data-arc span      41831 days (114.53 yr)  
   first obs. used      1906-01-23  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46292  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:18:32  

Additional Information
 Earth MOID = 1.86341 au 
 Jupiter MOID = 1.8136 au 
 T_jup = 3.237 
[ 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 9.4   n/a MPO492756 IRAS observations used: 11
diameter diameter 95.203 km 0.752 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 13.670 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2010) Minor Planet Bull. 37, 127-130.]
geometric albedo albedo 0.040   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.660   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=4.68 deg.
U-B UB 0.372   0.070 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=4.68 deg.
Tholen spectral type spec_T C:   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 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)

586 Thekla (A906 DK)          Discovered 1906-Feb-21 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A906 DK = A911 BB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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