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JPL Small-Body Database Browser
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266655 (2008 TT121)
Classification: Outer Main-belt Asteroid          SPK-ID: 2266655
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06549425563303229 6.0155e-08  
a 3.453309891686001 8.0295e-08 au
q 3.227137930859839 2.2113e-07 au
i 6.708619858611627 8.1612e-06 deg
node 314.3222581795188 5.5896e-05 deg
peri 291.5848876066968 8.4167e-05 deg
M 5.222037299146594 6.5354e-05 deg
tp 2458566.499193036225
(2019-Mar-23.99919304)
0.00042507 TDB
period 2343.968418027052
6.42
8.1752e-05
2.238e-07
d
yr
n .1535856870900234 5.3567e-09 deg/d
Q 3.679481852512163 8.5554e-08 au
  Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      7402 days (20.27 yr)  
   first obs. used      1998-01-08  
   last obs. used      2018-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63906  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 10:15:04  

Additional Information
 Earth MOID = 2.22163 au 
 Jupiter MOID = 1.44876 au 
 T_jup = 3.121 
[ 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 15.1   n/a MPO433731  
diameter diameter 5.698 km 2.913 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

266655 (2008 TT121)          Discovered 2008-Oct-07 by CSS at Catalina
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2008 TT121 = 2001 SR326 = 2010 EX163 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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