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385520 (2004 JK8)
Classification: Main-belt Asteroid          SPK-ID: 2385520
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1927958323888612 4.8998e-08  
a 3.180997879743663 2.9072e-08 au
q 2.567714745691281 1.6777e-07 au
i 9.929917056007504 4.7117e-06 deg
node 125.7860456852118 3.7943e-05 deg
peri 145.1497764370382 4.1574e-05 deg
M 335.0077272350226 1.5713e-05 deg
tp 2459540.362216638464
(2021-Nov-21.86221664)
9.0638e-05 TDB
period 2072.256432092991
5.67
2.8408e-05
7.778e-08
d
yr
n .1737236735882141 2.3816e-09 deg/d
Q 3.794281013796045 3.4677e-08 au
  Orbit Determination Parameters
   # obs. used (total)      237  
   data-arc span      7498 days (20.53 yr)  
   first obs. used      2000-11-27  
   last obs. used      2021-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54348  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 10:04:19  

Additional Information
 Earth MOID = 1.55875 au 
 Jupiter MOID = 1.40878 au 
 T_jup = 3.147 
[ 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 16.03   n/a MPCxxxxx  

385520 (2004 JK8)          Discovered 2004-May-12 by CSS at Catalina
Reference: Last Updated: 2014-02-19

[ 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
1905-Aug-20 23:02 00:05 Jupiter 1.47227636769209 1.47227428853077 1.47227844726792 0.669360978565356 n/a 2417078.460042450 4.97265977350515 1326.97480778795 37.8001906169455 85.8256258878499 5809332.93665703 F 21 CATAB v2.0g-lin.ifort 2021-Jul-08 10:04:20 2021-Jul-08 10:04
1916-Feb-25 10:43 00:04 Jupiter 1.83784830329633 1.83784559530339 1.8378510112972 2.95691068486101 2.79670632273002 2420918.946608179 4.21184650987414 258.101276835929 28.695391609351 -77.7283107405683 1425994.6655452 T 21 CATAB v2.0g-lin.ifort 2021-Jul-08 10:04:20 2021-Jul-08 10:04
2002-Apr-30 07:04 < 00:01 Jupiter 1.54365617673667 1.54365534053906 1.54365701293753 2.20239348287949 1.93729534576923 2452394.794423323 0.920522640202927 158.161695939911 33.2878973028095 -80.9951461780463 1715886.54773276 T 21 CATAB v2.0g-lin.ifort 2021-Jul-08 10:04:20 2021-Jul-08 10:04
2013-Feb-01 08:03 < 00:01 Jupiter 1.3954269535881 1.39542624629858 1.39542766087929 1.34305725707988 0.767987734426663 2456324.835262868 0.502695725749967 810.046757549431 175.604341759433 -6.45190970932556 998268.367485753 T 21 CATAB v2.0g-lin.ifort 2021-Jul-08 10:04:20 2021-Jul-08 10:04
2023-Aug-23 21:51 < 00:01 Jupiter 1.67458653738296 1.67458565695541 1.6745874178087 1.54831446911737 1.17713967781775 2460180.410745721 0.698052160564831 271.774630174811 74.14256864852 31.8133312642056 1220314.84965048 T 21 CATAB v2.0g-lin.ifort 2021-Jul-08 10:04:20 2021-Jul-08 10:04
2109-Sep-23 21:35 00:03 Jupiter 1.7345237119626 1.73452099770281 1.73452642624595 2.62885549444484 2.43602509716068 2491622.399222824 3.30838248217165 366.980508845429 17.6114725580288 -74.2691206235666 1725786.43111113 T 21 CATAB v2.0g-lin.ifort 2021-Jul-08 10:04:20 2021-Jul-08 10:04
2120-Jun-27 23:28 00:04 Jupiter 1.39780283927155 1.39780167692922 1.39780400165361 1.92423812188367 1.57821360431286 2495552.477454995 3.54209698704881 471.449922619848 78.0688641129592 83.9549730653897 1448828.93583944 T 21 CATAB v2.0g-lin.ifort 2021-Jul-08 10:04:20 2021-Jul-08 10:04
2131-Mar-18 08:51 00:05 Jupiter 1.50867689755417 1.50867464306874 1.50867915224893 1.11705329112083 0.353468594753852 2499467.868876055 5.01927438915972 11499.4586705689 1071.66780347846 -8.82335936981054 997582.540537224 T 21 CATAB v2.0g-lin.ifort 2021-Jul-08 10:04:20 2021-Jul-08 10:04
2141-Sep-15 15:06 00:06 Jupiter 1.91034698958862 1.91034359254648 1.9103503866477 3.03037397309684 2.88034597753091 2503302.129276860 5.52213656829205 353.746075296591 26.5798092498648 -77.2687647546431 1664986.58695792 T 21 CATAB v2.0g-lin.ifort 2021-Jul-08 10:04:20 2021-Jul-08 10:04

Alternate Designations
 2004 JK8 = 2009 DS108 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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