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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 ]

[ show orbit diagram ]
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1936-Oct-28 14:17 00:02 Jupiter 1.68208767102206 1.68208725317604 1.68208808886779 1.57832077461606 1.21819038933777 2428470.094836604 1.9912981971056 120.603464411746 46.7700201801448 50.4689607775385 2905680.08436378 T 22 CATAB v2.0f-lin.ifort 2020-Aug-25 01:15:01 2020-Aug-25 01:15
1974-Apr-04 10:26 00:01 Jupiter 1.84775011440581 1.84774935328486 1.84775087552643 2.46997501241327 2.27683147296293 2442141.934485546 1.0633468280431 55.3259049664133 13.1785708181828 87.5687342810324 1743732.7450193 T 22 CATAB v2.0f-lin.ifort 2020-Aug-25 01:15:01 2020-Aug-25 01:15
1983-Mar-10 07:53 < 00:01 Jupiter 1.91508195742197 1.91508138128444 1.91508253355928 2.03196755593508 1.80119715491021 2445403.828394869 0.840126402159991 47.8566720559227 15.9046538533886 81.2195894638685 2282217.49110042 T 22 CATAB v2.0f-lin.ifort 2020-Aug-25 01:15:01 2020-Aug-25 01:15
2020-Aug-08 17:19 < 00:01 Jupiter 1.65258692942019 1.65258658665881 1.65258727218195 1.62075913145836 1.26561185662709 2459070.221182070 0.268106800577259 125.422701597068 44.1782361790905 59.4197008081512 3327182.342157 T 22 CATAB v2.0f-lin.ifort 2020-Aug-25 01:15:01 2020-Aug-25 01:15
2066-Dec-23 03:36 00:01 Jupiter 1.74077103054087 1.74077031090952 1.74077175017164 1.67108164948969 1.3488350556387 2476007.649700219 1.41673647460361 75.9858519703395 43.3421102547498 51.2979238652266 1864002.94129837 T 22 CATAB v2.0f-lin.ifort 2020-Aug-25 01:15:01 2020-Aug-25 01:15
2104-May-26 09:18 00:02 Jupiter 1.74631589954967 1.74631503747171 1.74631676162713 1.98148257579825 1.71936188122363 2489675.887276708 2.43963213317608 89.822218596815 25.3806478764201 -82.2561273189688 1459076.22875452 T 22 CATAB v2.0f-lin.ifort 2020-Aug-25 01:15:01 2020-Aug-25 01:15
2150-Oct-05 18:11 00:04 Jupiter 1.64392716236199 1.64392661608648 1.64392770863759 1.54868541268412 1.16958960101931 2506609.257884638 3.54814220621381 145.819197408364 51.3600463701661 53.0504169088874 3309110.47459757 T 22 CATAB v2.0f-lin.ifort 2020-Aug-25 01:15:01 2020-Aug-25 01:15
2188-Mar-15 15:59 00:05 Jupiter 1.90119582964462 1.90119354775452 1.90119811153905 2.76400692294149 2.59782455707601 2520285.166056260 4.64181980488108 201.175344669573 17.3278007302024 75.883996900042 1932395.48618432 T 22 CATAB v2.0f-lin.ifort 2020-Aug-25 01:15:01 2020-Aug-25 01:15
2197-Feb-15 02:27 00:05 Jupiter 1.83877404639341 1.83877146747638 1.8387766253072 1.90210760233871 1.64217016372545 2523543.602283804 4.83736106719503 111.931359586838 24.7856608810323 85.2533446581197 1173770.13558558 T 22 CATAB v2.0f-lin.ifort 2020-Aug-25 01:15:01 2020-Aug-25 01:15

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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