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469838 (2005 TR8)
Classification: Main-belt Asteroid          SPK-ID: 2469838
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 .2043027152084552 6.8895e-07  
a 3.193624389020156 2.1838e-07 au
q 2.541158254987395 2.3696e-06 au
i 27.00388756880225 1.6552e-05 deg
node 26.79718520531743 2.5953e-05 deg
peri 310.9114996988661 0.00019313 deg
M 267.3061230181441 8.632e-05 deg
tp 2459737.250833663944
(2022-Jun-06.75083366)
0.00045167 TDB
period 2084.606949354845
5.71
0.00021382
5.854e-07
d
yr
n .1726944257340285 1.7713e-08 deg/d
Q 3.846090523052919 2.6299e-07 au
  Orbit Determination Parameters
   # obs. used (total)      58  
   data-arc span      3995 days (10.94 yr)  
   first obs. used      2005-10-01  
   last obs. used      2016-09-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51802  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 16:20:30  

Additional Information
 Earth MOID = 1.60289 au 
 Jupiter MOID = 1.83078 au 
 T_jup = 2.996 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456805.5 (2014-May-28.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2027920752140758 6.9326e-07  
q 2.547086030745805 2.3852e-06 au
tp 2457652.754167786905
(2016-Sep-21.25416779)
0.00065121 TDB
node 26.82767525544136 2.596e-05 deg
peri 311.1765059375684 0.00019382 deg
i 26.99788240064125 1.6549e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      58  
   data-arc span      3995 days (10.94 yr)  
   first obs. used      2005-10-01  
   last obs. used      2016-09-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51802  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 16:20:30  

Additional Information
 Jupiter MOID = 1.83078 au 
 T_jup = 2.996 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.806129141475647E-13 -1.653317852468708E-12 4.343256818475564E-10 -3.778842434563178E-12 1.302647567054421E-10 -6.853442440361635E-12
q -1.653317852468708E-12 5.689088050705507E-12 -1.494029701134562E-9 1.299377345499722E-11 -4.482915472370136E-10 2.358731033021097E-11
tp 4.343256818475564E-10 -1.494029701134562E-9 4.240778416358575E-7 -3.417460668971379E-9 1.249434535719532E-7 -6.142930765191913E-9
node -3.778842434563178E-12 1.299377345499722E-11 -3.417460668971379E-9 6.739202817756133E-10 -1.598897815741818E-9 -3.38740889015265E-11
peri 1.302647567054421E-10 -4.482915472370136E-10 1.249434535719532E-7 -1.598897815741818E-9 3.756662889121609E-8 -1.765896644202855E-9
i -6.853442440361635E-12 2.358731033021097E-11 -6.142930765191913E-9 -3.38740889015265E-11 -1.765896644202855E-9 2.738555179416402E-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 16.6   n/a MPO392231  
diameter diameter 3.576 km 0.305 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.038   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

469838 (2005 TR8)          Discovered 2005-Oct-01 by Spacewatch at Kitt Peak
Reference: Last Updated: 2016-08-22

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