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358881 (2008 GK4)
Classification: Main-belt Asteroid          SPK-ID: 2358881
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2797124387385616 5.6676e-08  
a 3.089663983989062 2.3359e-08 au
q 2.225446536144781 1.7117e-07 au
i 17.85708977134397 7.0302e-06 deg
node 74.32932452819628 1.7008e-05 deg
peri 154.2960405291511 2.1171e-05 deg
M 78.2109079467629 1.07e-05 deg
tp 2458569.546780766606
(2019-Mar-27.04678077)
5.679e-05 TDB
period 1983.651168320736
5.43
2.2496e-05
6.159e-08
d
yr
n .18148352177503 2.0581e-09 deg/d
Q 3.953881431833343 2.9893e-08 au
  Orbit Determination Parameters
   # obs. used (total)      325  
   data-arc span      6787 days (18.58 yr)  
   first obs. used      2002-03-19  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53519  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 16:23:29  

Additional Information
 Earth MOID = 1.22651 au 
 Jupiter MOID = 1.13598 au 
 T_jup = 3.092 
[ 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 15.5   n/a MPO437516  

358881 (2008 GK4)          Discovered 2008-Apr-08 by Lowe, A. at Mayhill
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ 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
1918-Nov-06 06:09 00:05 Jupiter 1.89504007058836 1.89503375328007 1.89504638831179 3.7525999355951 3.63153824398015 2421903.755944359 4.66739556203198 1464.92624261983 28.876322635417 -77.7412267908002 1969212.27068973 T 14 CATAB v2.0f-lin.ifort 2020-Nov-11 16:23:30 2020-Nov-11 16:23
1929-Mar-13 11:47 00:02 Jupiter 1.19937897452434 1.19937704463663 1.19938090443325 4.06169283240555 3.88393016242819 2425683.990760295 2.15518454472171 299.121877740408 38.0062485439941 74.0284263336792 1657827.24654028 T 14 CATAB v2.0f-lin.ifort 2020-Nov-11 16:23:30 2020-Nov-11 16:23
1989-Oct-09 17:56 00:02 Jupiter 1.70852359382272 1.70852106741849 1.70852612029882 3.78689433168488 3.65363421697775 2447809.247179656 1.59761248130143 609.453746651166 38.7802363069056 -78.6495554294657 1931100.47716808 T 14 CATAB v2.0f-lin.ifort 2020-Nov-11 16:23:30 2020-Nov-11 16:23
2000-Mar-18 00:46 < 00:01 Jupiter 1.30665513648261 1.30665400800245 1.30665626496366 4.26733108412901 4.11261961612365 2451621.532027273 0.674836328248479 109.134862356824 42.4750566906605 71.7819228669714 1594080.21049441 T 14 CATAB v2.0f-lin.ifort 2020-Nov-11 16:23:30 2020-Nov-11 16:23
2060-Jun-24 18:00 00:01 Jupiter 1.34553478586688 1.34553303773368 1.34553653400459 3.87259323175292 3.70647621067288 2473635.249981267 1.28821617074279 167.64236111353 42.5588411958197 -61.9365713479984 2174730.63568393 T 14 CATAB v2.0f-lin.ifort 2020-Nov-11 16:23:30 2020-Nov-11 16:23
2070-Dec-29 06:54 00:02 Jupiter 1.66643265549134 1.66642920796295 1.66643610302123 4.51279815653567 4.39872452529723 2477474.787423085 2.24314112171992 191.164913812445 58.0343168371171 26.8446842680472 1333146.16892795 T 14 CATAB v2.0f-lin.ifort 2020-Nov-11 16:23:30 2020-Nov-11 16:23
2131-May-25 14:11 00:02 Jupiter 1.17025903225584 1.17025728377712 1.17026078074627 3.92716403592474 3.73831995902122 2499536.090898672 2.23364028395016 210.897454443366 15.7189746798967 -65.7961095809849 2359348.80014029 T 14 CATAB v2.0f-lin.ifort 2020-Nov-11 16:23:30 2020-Nov-11 16:23
2141-Sep-23 15:44 00:09 Jupiter 1.95446771818416 1.95446139400286 1.95447404239047 3.76608409826896 3.64919638396131 2503310.155410715 9.17846774876712 497.194957600755 96.4884747453166 -35.452048438918 1101340.36698015 T 14 CATAB v2.0f-lin.ifort 2020-Nov-11 16:23:30 2020-Nov-11 16:23

Alternate Designations
 2008 GK4 = 2005 VH83 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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