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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1992530061988203 4.7538e-08  
a 3.147713134993082 1.7671e-08 AU
q 2.520521830194197 1.4949e-07 AU
i 4.421209797749428 6.1393e-06 deg
node 12.18043191504071 5.6197e-05 deg
peri 28.87687882347481 5.7817e-05 deg
M 245.6194449358746 1.3621e-05 deg
tp 2457648.598244865323
(2016-Sep-17.09824487)
8.0294e-05 JED
period 2039.816715530995
5.58
1.7177e-05
4.703e-08
d
yr
n .1764864447177974 1.4862e-09 deg/d
Q 3.774904439791966 2.1192e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1378  
   data-arc span      38023 days (104.10 yr)  
   first obs. used      1911-01-31  
   last obs. used      2015-03-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59097  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:01:10  

Additional Information
 Earth MOID = 1.5295 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 9.4 mag n/a MPO265959  
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. 2015-May); 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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