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17679 (1997 AK4)
Classification: Main-belt Asteroid          SPK-ID: 2017679
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1846602843288979 3.2356e-08  
a 3.017288003231557 1.7266e-08 au
q 2.460114742652645 9.5323e-08 au
i 2.493644551172455 3.7655e-06 deg
node 279.3127080734118 9.8274e-05 deg
peri 168.3063928708665 9.8996e-05 deg
M 201.0187658057673 1.3522e-05 deg
tp 2459845.909140863332
(2022-Sep-23.40914086)
7.5962e-05 TDB
period 1914.359844124549
5.24
1.6432e-05
4.499e-08
d
yr
n .188052419248603 1.6142e-09 deg/d
Q 3.574461263810469 2.0455e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1393  
   data-arc span      18059 days (49.44 yr)  
   first obs. used      1971-02-18  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49253  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:14:55  

Additional Information
 Earth MOID = 1.47658 au 
 Jupiter MOID = 1.64623 au 
 T_jup = 3.220 
[ 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 13.6   n/a MPO439216  

17679 (1997 AK4)          Discovered 1997-Jan-06 by Kobayashi, T. at Oizumi
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1997 AK4 = 1971 DJ = 1994 NK5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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