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90500 (2004 EG4)
Classification: Main-belt Asteroid          SPK-ID: 2090500
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1074824121744414 4.2686e-08  
a 3.076334130345534 2.552e-08 au
q 2.745682317361434 1.3365e-07 au
i 15.30404392223479 5.0215e-06 deg
node 53.38609892795612 1.8648e-05 deg
peri 192.5578620518718 3.0523e-05 deg
M 13.27571147963516 2.5296e-05 deg
tp 2459323.821829387236
(2021-Apr-19.32182939)
0.00013833 TDB
period 1970.827812937225
5.40
2.4524e-05
6.714e-08
d
yr
n .1826643594315191 2.273e-09 deg/d
Q 3.406985943329635 2.8263e-08 au
  Orbit Determination Parameters
   # obs. used (total)      986  
   data-arc span      13933 days (38.15 yr)  
   first obs. used      1983-05-08  
   last obs. used      2021-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47718  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:38:18  

Additional Information
 Earth MOID = 1.73514 au 
 Jupiter MOID = 1.60751 au 
 T_jup = 3.166 
[ 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 14.18   n/a E2021B10  
diameter diameter 5.844 km 0.263 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.156   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

90500 (2004 EG4)          Discovered 2004-Mar-11 by NEAT at Palomar
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ 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
1904-Dec-06 21:32 00:04 Jupiter 1.65729955840956 1.65729777065053 1.65730134616888 3.89875644819408 3.76538576405224 2416821.397223643 3.98300483526845 241.712163289337 91.792527093569 -86.8549313516994 2624752.31226012 T 24 CATAB v2.0g-lin.ifort 2021-Jul-08 23:38:21 2021-Jul-08 23:38
1954-May-03 20:26 00:02 Jupiter 1.96534444432204 1.96534252350399 1.96534636515316 3.58235400628772 3.45995692064568 2434866.351399509 2.42536303087639 277.244358336116 11.2343700553742 -68.9964133298301 3217529.27248524 T 24 CATAB v2.0g-lin.ifort 2021-Jul-08 23:38:21 2021-Jul-08 23:38
1964-Feb-19 08:21 00:02 Jupiter 1.68534577449482 1.68534471504313 1.68534683395111 3.88899267217347 3.75753939501909 2438444.848134879 1.87581353847466 294.494510384319 45.2491432837959 -84.1591432716527 2646290.55202131 T 24 CATAB v2.0g-lin.ifort 2021-Jul-08 23:38:21 2021-Jul-08 23:38
2013-Jul-06 12:04 < 00:01 Jupiter 1.90909123881728 1.90909064344685 1.90909183418857 3.60185955936929 3.47649759416815 2456480.002997006 0.283849320085276 83.3394991014974 11.5649978898678 -71.6242930841729 3053175.61887613 T 24 CATAB v2.0g-lin.ifort 2021-Jul-08 23:38:21 2021-Jul-08 23:38
2023-Apr-24 12:19 < 00:01 Jupiter 1.72542706413287 1.72542644599021 1.72542768228397 3.87292226627101 3.74402388691079 2460059.013450200 0.43552158683858 359.507313975251 22.9581200654846 -86.7682989061997 2756193.92651236 T 24 CATAB v2.0g-lin.ifort 2021-Jul-08 23:38:21 2021-Jul-08 23:38
2072-Sep-01 13:25 00:02 Jupiter 1.84820691299264 1.84820524936656 1.8482085766412 3.64389504638399 3.51587580928999 2478087.058707193 2.2643116997231 344.904917192464 12.1514510507455 -75.5631519545313 2922238.06920802 T 24 CATAB v2.0g-lin.ifort 2021-Jul-08 23:38:21 2021-Jul-08 23:38
2082-Jun-20 19:36 00:03 Jupiter 1.77643090626443 1.77642909780878 1.77643271482005 3.85419845377471 3.72843437878443 2481666.316851189 2.63901665416929 784.76414088243 42.3040966274809 -83.9351155670799 2442732.99801338 T 24 CATAB v2.0g-lin.ifort 2021-Jul-08 23:38:21 2021-Jul-08 23:38
2131-Oct-28 17:17 00:04 Jupiter 1.78941866200448 1.78941578402785 1.78942154008739 3.69649423026754 3.56614193032022 2499692.220428448 4.30107852411285 721.071324675288 13.1363238989754 -77.9223833360846 2833695.36746658 T 24 CATAB v2.0g-lin.ifort 2021-Jul-08 23:38:21 2021-Jul-08 23:38
2141-Aug-15 13:21 00:05 Jupiter 1.83386054224903 1.83385722329807 1.83386386186766 3.84095057757519 3.71875549421356 2503271.056436154 4.76629110675935 1837.48933785037 37.5096035566294 -84.8031747973114 2431100.91354486 T 24 CATAB v2.0g-lin.ifort 2021-Jul-08 23:38:21 2021-Jul-08 23:38
2190-Dec-26 01:11 00:06 Jupiter 1.73893769833477 1.73893409185887 1.73894130505719 3.7469036751486 3.61456820389659 2521300.549208339 5.94000360259429 1073.01925413797 13.9895090738852 -79.8198587371457 2781149.23739494 T 24 CATAB v2.0g-lin.ifort 2021-Jul-08 23:38:21 2021-Jul-08 23:38
2200-Oct-13 00:23 00:07 Jupiter 1.89113810377956 1.89113342480523 1.89114278400162 3.84402012079921 3.72568248579414 2524878.515992593 6.56017286834326 2503.39855653575 33.8614829876857 -84.5727110942513 2513712.06073142 T 24 CATAB v2.0g-lin.ifort 2021-Jul-08 23:38:21 2021-Jul-08 23:38

Alternate Designations
 2004 EG4 = 1983 JT1 = 1999 JV125 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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