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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1836750873161726 3.1889e-08  
a 3.016676356006446 1.8627e-08 au
q 2.462588062912329 9.3357e-08 au
i 2.486473343609533 3.7555e-06 deg
node 279.2569640049913 9.8674e-05 deg
peri 168.8424659334757 9.9404e-05 deg
M 237.9172183997765 1.3881e-05 deg
tp 2459849.498093685605
(2022-Sep-26.99809369)
7.6724e-05 TDB
period 1913.777771642695
5.24
1.7725e-05
4.853e-08
d
yr
n .1881096150944387 1.7422e-09 deg/d
Q 3.570764649100564 2.2048e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1397  
   data-arc span      18059 days (49.44 yr)  
   first obs. used      1971-02-18  
   last obs. used      2020-07-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49267  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:09:58  

Additional Information
 Earth MOID = 1.47878 au 
 Jupiter MOID = 1.64774 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 13.59   n/a E2021B10  

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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