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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1521436741486827 8.4169e-08  
a 2.681133532388013 2.7807e-08 au
q 2.273216025887264 2.3146e-07 au
i 12.71259556873144 1.0971e-05 deg
node 338.6130728429508 2.3383e-05 deg
peri 140.2014503012122 3.6645e-05 deg
M 207.6908587424687 2.7584e-05 deg
tp 2459678.921436436594
(2022-Apr-09.42143644)
0.00012516 TDB
period 1603.526322193725
4.39
2.4946e-05
6.83e-08
d
yr
n .2245052014534425 3.4927e-09 deg/d
Q 3.089051038888762 3.2038e-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 = 1.30303 au 
 Jupiter MOID = 2.00017 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 = 2.00017 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 16.8   n/a MPO437600  
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

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