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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .113451419671822 5.4756e-08  
a 2.715997637310737 1.9861e-08 AU
q 2.407863849532519 1.4716e-07 AU
i 2.964109496502111 5.6341e-06 deg
node 85.04308010739953 0.00012729 deg
peri .2975795955044392 0.00013137 deg
M 54.24561723858869 3.0905e-05 deg
tp 2456554.148810816340
(2013-Sep-18.64881082)
0.00014054 JED
period 1634.904949390615
4.48
1.7933e-05
4.91e-08
d
yr
n .2201962873341256 2.4153e-09 deg/d
Q 3.024131425088954 2.2114e-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 = 1.42335 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 12.6 mag n/a MPO250219  
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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