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245426 (2005 JA84)
Classification: Main-belt Asteroid          SPK-ID: 2245426
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03568867828232251 4.0169e-08  
a 2.937103107867934 2.7885e-08 au
q 2.832281779969226 1.2542e-07 au
i 10.57678898218026 5.5395e-06 deg
node 222.2184018650943 2.3766e-05 deg
peri 105.2191136588762 8.3008e-05 deg
M 261.6168849751098 8.0771e-05 deg
tp 2459502.952815910531
(2021-Oct-15.45281591)
0.00041462 TDB
period 1838.557497209037
5.03
2.6183e-05
7.169e-08
d
yr
n .1958056794777897 2.7885e-09 deg/d
Q 3.041924435766642 2.888e-08 au
  Orbit Determination Parameters
   # obs. used (total)      312  
   data-arc span      5496 days (15.05 yr)  
   first obs. used      2005-04-11  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54427  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:04:54  

Additional Information
 Earth MOID = 1.84573 au 
 Jupiter MOID = 2.07858 au 
 T_jup = 3.248 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457216.5 (2015-Jul-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03448394512596069 4.0226e-08  
q 2.836141703599237 1.2535e-07 au
tp 2457668.891520398292
(2016-Oct-07.39152040)
0.00042156 TDB
node 222.238806606824 2.3764e-05 deg
peri 106.2381217517294 8.5629e-05 deg
i 10.57650360591567 5.5396e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      312  
   data-arc span      5496 days (15.05 yr)  
   first obs. used      2005-04-11  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54427  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:04:54  

Additional Information
 Jupiter MOID = 2.07858 au 
 T_jup = 3.248 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.618125385986545E-15 -4.926895293034878E-15 1.141716294891377E-12 2.056282725187725E-15 2.564642823044307E-13 -3.758275184747401E-15
q -4.926895293034878E-15 1.571154838707803E-14 -5.892319621565156E-13 -4.06466230800637E-15 -2.507915717379883E-13 1.364730292602123E-14
tp 1.141716294891377E-12 -5.892319621565156E-13 1.777146062907945E-7 1.106573893753478E-10 3.469296155513463E-8 1.13762130334023E-11
node 2.056282725187725E-15 -4.06466230800637E-15 1.106573893753478E-10 5.647411774890584E-10 -5.332367304135096E-10 1.402930190336799E-12
peri 2.564642823044307E-13 -2.507915717379883E-13 3.469296155513463E-8 -5.332367304135096E-10 7.332309568957497E-9 8.125005419388756E-13
i -3.758275184747401E-15 1.364730292602123E-14 1.13762130334023E-11 1.402930190336799E-12 8.125005419388756E-13 3.068675622688441E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO437143  
diameter diameter 3.203 km 0.945 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.119   0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

245426 (2005 JA84)          Discovered 2005-May-08 by Spacewatch at Kitt Peak
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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