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(2008 EJ85)
Classification: Apollo [NEO]          SPK-ID: 3406337
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer 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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2603394833619851 0.00028626  
a 1.207332943495784 0.0016489 au
q .8930165087401868 0.00087405 au
i 6.684008689243632 0.011335 deg
node 169.0555565965597 0.04641 deg
peri 301.7627933134272 0.21562 deg
M 42.41445632124259 4.5232 deg
tp 2459339.411266666507
(2021-May-04.91126667)
5.9711 TDB
period 484.5504524306315
1.33
0.99268
0.002718
d
yr
n .7429566894306796 0.0015221 deg/d
Q 1.521649378251381 0.0020782 au
  Orbit Determination Parameters
   # obs. used (total)      37  
   data-arc span      23 days  
   first obs. used      2008-03-14  
   last obs. used      2008-04-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .37653  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 01:30:31  

Additional Information
 Earth MOID = .00138265 au 
 Jupiter MOID = 3.58482 au 
 T_jup = 5.234 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.1   n/a MPO138164  

[ 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
1970-Aug-19 18:00 5_19:13 Earth 0.44272195314382 0.408591885255276 0.476932446729476 7.94468287920532 7.94392530454575 2440818.250320711 8353.06916943267 1729722.93925199 158.715151454237 -9.91456088105554 53847.9344610285 T 11 CATAB v2.0g-lin.ifort 2021-Apr-15 01:30:31 2021-Apr-15 01:30
1971-Apr-02 10:54 6_05:49 Earth 0.337091367539416 0.219430278660009 0.454870974844033 16.553864442483 16.553386944441 2441043.954502841 8988.96661150084 5878694.28876637 22.3566914548762 -2.91807396257804 108920.173728575 T 11 CATAB v2.0g-lin.ifort 2021-Apr-15 01:30:31 2021-Apr-15 01:30
1999-Aug-05 14:51 8_10:29 Earth 0.48440758859852 0.469119270225992 0.499819067992366 8.42417480903015 8.42352184256103 2451396.118543813 12148.7218223701 856893.819391964 88.0253292522937 -26.7062676268744 329592.15407553 T 11 CATAB v2.0g-lin.ifort 2021-Apr-15 01:30:31 2021-Apr-15 01:30
2003-Aug-26 09:20 4_23:06 Earth 0.422337129952201 0.407336334168119 0.437447620640632 7.71763292760846 7.71681541967394 2452877.888578531 7146.03474963263 823933.685909813 51.8095268132828 -24.3308960246667 422121.156204305 T 11 CATAB v2.0g-lin.ifort 2021-Apr-15 01:30:31 2021-Apr-15 01:30
2004-Mar-29 06:07 3_00:28 Earth 0.267110246771546 0.212311034684956 0.321948030229516 14.5298403933539 14.52915384485 2453093.754696108 4347.66457665545 2738259.20804088 18.2569801924207 -3.32827822007426 127172.977764044 T 11 CATAB v2.0g-lin.ifort 2021-Apr-15 01:30:31 2021-Apr-15 01:30
2007-Sep-20 19:33 04:39 Earth 0.319137572309023 0.317492039341528 0.320783333460808 6.21513410908056 6.21379063015827 2454364.314398414 278.746760120266 83158.0236445512 382.587528329274 9.41079854321918 12951.3130146197 T 11 CATAB v2.0g-lin.ifort 2021-Apr-15 01:30:31 2021-Apr-15 01:30
2008-Mar-11 11:17 00:01 Moon 0.00928476098007576 0.00923063120579133 0.00933889123585324 6.89652115542253 6.89600931557735 2454536.969859853 1.15029503334908 2701.30356321225 5.40834283536156 2.42432765693475 9567.37601315579 T 11 CATAB v2.0g-lin.ifort 2021-Apr-15 01:30:31 2021-Apr-15 01:30
2008-Mar-11 14:15 < 00:01 Earth 0.0109194985901105 0.0108646293643317 0.0109743629998928 7.39760953593936 7.36455053340612 2454537.093788461 0.233132866630335 2711.87439539468 5.33760922001751 0.71959508451559 366.282915332565 T 11 CATAB v2.0g-lin.ifort 2021-Apr-15 01:30:31 2021-Apr-15 01:30
2011-Sep-28 03:19 6_20:28 Earth 0.299600319797318 0.26915079603753 0.331850811390528 5.83830330944895 5.83677981772819 2455832.638515780 9868.201358336 1946267.55914062 73.98802467805 -36.3632899294159 127198.272712635 T 11 CATAB v2.0g-lin.ifort 2021-Apr-15 01:30:31 2021-Apr-15 01:30
2012-Mar-07 01:31 8_02:10 Earth 0.0227048658042748 0.00275033244602244 0.0739161361610874 6.54321226529406 6.52525257515961 2455993.562950074 11649.7975577585 2560045.28928582 16.4338722369787 7.07048962045911 22970.9319572762 T 11 CATAB v2.0g-lin.ifort 2021-Apr-15 01:30:31 2021-Apr-15 01:30
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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