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2073 Janacek (1974 DK)
Classification: Main-belt Asteroid          SPK-ID: 2002073
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 .1133501234373207 5.4767e-08  
a 2.715067500987825 1.966e-08 AU
q 2.407314264610198 1.4699e-07 AU
i 2.964079270268973 5.634e-06 deg
node 85.03679768649413 0.00012732 deg
peri .1401431722788515 0.00013141 deg
M 98.467131707479 3.0929e-05 deg
tp 2456553.550803938033
(2013-Sep-18.05080394)
0.00014069 JED
period 1634.065172735065
4.47
1.7749e-05
4.859e-08
d
yr
n .2203094503247011 2.393e-09 deg/d
Q 3.022820737365453 2.1889e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1260  
   data-arc span      15208 days (41.64 yr)  
   first obs. used      1972-10-06  
   last obs. used      2014-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48444  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:20:28  

Additional Information
 Earth MOID = 1.42318 AU 
 T_jup = 3.350 
[ 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 12.7 mag n/a MPO296147  
SMASSII spectral type spec_B X   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)

2073 Janacek (1974 DK)          Discovered 1974-Feb-19 by Kohoutek, L. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1974 DK = 1972 TQ1 = 1972 TU6 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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