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390905 (2005 EA84)
Classification: Main-belt Asteroid          SPK-ID: 2390905
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1526352722884296 8.4328e-08  
a 2.679680365213065 2.7573e-08 au
q 2.27066662302281 2.3168e-07 au
i 12.71723515690851 1.0975e-05 deg
node 338.6110873537417 2.3374e-05 deg
peri 140.3381876312414 3.6524e-05 deg
M 252.4834656796424 2.757e-05 deg
tp 2459679.015129986588
(2022-Apr-09.51512999)
0.00012446 TDB
period 1602.222838413742
4.39
2.4729e-05
6.77e-08
d
yr
n .2246878470140975 3.4679e-09 deg/d
Q 3.088694107403319 3.1782e-08 au
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      5671 days (15.53 yr)  
   first obs. used      2005-03-04  
   last obs. used      2020-09-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55886  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:37:29  

Additional Information
 Earth MOID = 1.30031 au 
 Jupiter MOID = 1.99962 au 
 T_jup = 3.325 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457778.5 (2017-Jan-25.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .150843142334473 8.2858e-08  
q 2.277325767555459 2.2698e-07 au
tp 2458071.276203624987
(2017-Nov-13.77620362)
0.00012386 TDB
node 338.8295239350662 2.342e-05 deg
peri 139.3190830719031 3.7211e-05 deg
i 12.69812992946317 1.0962e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      5671 days (15.53 yr)  
   first obs. used      2005-03-04  
   last obs. used      2020-09-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55886  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:37:29  

Additional Information
 Jupiter MOID = 1.99962 au 
 T_jup = 3.325 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.865519661562534E-15 -1.871039478866302E-14 6.562450745766467E-12 8.616461357647039E-15 1.62043056749409E-12 -4.716229316036585E-15
q -1.871039478866302E-14 5.152138010833811E-14 -1.730205275240847E-11 -2.428333016619207E-14 -4.316020255177181E-12 1.495987787623575E-14
tp 6.562450745766467E-12 -1.730205275240847E-11 1.534163702810323E-8 8.710369982973824E-13 3.587343526222818E-9 -7.782633422319245E-12
node 8.616461357647039E-15 -2.428333016619207E-14 8.710369982973824E-13 5.48510687868615E-10 -5.335013984437028E-10 -1.318984602172288E-12
peri 1.62043056749409E-12 -4.316020255177181E-12 3.587343526222818E-9 -5.335013984437028E-10 1.384673190168329E-9 -6.613106512257269E-13
i -4.716229316036585E-15 1.495987787623575E-14 -7.782633422319245E-12 -1.318984602172288E-12 -6.613106512257269E-13 1.201696980602747E-10

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 16.90   n/a E2021B25  
diameter diameter 3.093 km 0.918 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

390905 (2005 EA84)          Discovered 2005-Mar-04 by CSS at Catalina
Reference: Last Updated: 2014-04-17

[ 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
2152-Mar-24 18:31 00:05 Jupiter 1.99697715342642 1.99697621717375 1.99697808969804 4.24548579088463 4.14437509612389 2507145.271682643 5.48853672620913 612.582742771333 31.2593311197713 87.3994092601389 1339722.6759382 T 13 CATAB v2.0f-lin.ifort 2020-Nov-12 16:37:30 2020-Nov-12 16:37

Alternate Designations
 2005 EA84 = 2008 YG154 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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