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604 Tekmessa (1906 TK)
Classification: Main-belt Asteroid          SPK-ID: 2000604
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1989422262195374 4.3757e-08  
a 3.147974532219257 1.6727e-08 au
q 2.521709470697151 1.3957e-07 au
i 4.421335055512915 5.5705e-06 deg
node 12.17057719026499 5.5052e-05 deg
peri 28.81496135121953 5.6644e-05 deg
M 351.533609581143 1.3785e-05 deg
tp 2457648.477877693529
(2016-Sep-16.97787769)
7.8337e-05 JED
period 2040.070811192549
5.59
1.626e-05
4.452e-08
d
yr
n .1764644629122249 1.4065e-09 deg/d
Q 3.774239593741363 2.0054e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1547  
   data-arc span      38303 days (104.87 yr)  
   first obs. used      1911-01-31  
   last obs. used      2015-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57825  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 17:40:24  

Additional Information
 Earth MOID = 1.52947 au 
 Jupiter MOID = 1.66807 au 
 T_jup = 3.173 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.5 mag n/a MPO347517  
diameter diameter 65.16 km 4.1 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 10
rotation period rot_per 5.5596 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Baker, R.E.; Warner, B.D. (2011) Minor Planet Bul. 38, 195-197.]
[Klinglesmith III, D.A.; Hanowell, J.; Risely, E.; Turk, J.; et al. (2013) Minor Planet Bul. 40, 190-193.]
geometric albedo albedo 0.0870   0.012 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 10
SMASSII spectral type spec_B Xc   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)

604 Tekmessa (1906 TK)          Discovered 1906-Feb-16 by Metcalf, J. H. at Taunton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1906 TK = A894 BA = A911 BC = A915 WG 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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