Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2041308732454785 6.8874e-07  
a 3.194059064354035 2.1957e-07 au
q 2.542052998349809 2.3702e-06 au
i 27.000950172804 1.655e-05 deg
node 26.79740960185512 2.5957e-05 deg
peri 310.885338675824 0.0001934 deg
M 232.7848796267113 8.9776e-05 deg
tp 2459737.299077680427
(2022-Jun-06.79907768)
0.00045306 TDB
period 2085.032558917797
5.71
0.000215
5.886e-07
d
yr
n .1726591742945502 1.7804e-08 deg/d
Q 3.84606513035826 2.6439e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .566  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 12:31:20  

Additional Information
 Earth MOID = 1.60534 au 
 Jupiter MOID = 1.82977 au 
 T_jup = 2.996 
[ 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 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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-27 13:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin