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JPL Small-Body Database Browser
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74966 (1999 TB208)
Classification: Main-belt Asteroid          SPK-ID: 2074966
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1371856285558093 6.9423e-08  
a 2.339759668052681 1.5317e-08 au
q 2.018778267321342 1.6605e-07 au
i 25.81293704049386 6.967e-06 deg
node 343.5415580679933 1.055e-05 deg
peri 171.7527737757253 2.1782e-05 deg
M 50.90129718806964 1.7915e-05 deg
tp 2458415.666089443717
(2018-Oct-24.16608944)
6.4503e-05 TDB
period 1307.239922676427
3.58
1.2836e-05
3.514e-08
d
yr
n .2753893862596703 2.7042e-09 deg/d
Q 2.660741068784019 1.7418e-08 au
  Orbit Determination Parameters
   # obs. used (total)      696  
   data-arc span      7111 days (19.47 yr)  
   first obs. used      1999-10-14  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57539  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:45:29  

Additional Information
 Earth MOID = 1.02957 au 
 Jupiter MOID = 2.3295 au 
 T_jup = 3.420 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO337823  
diameter diameter 5.275 km 1.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.067   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

74966 (1999 TB208)          Discovered 1999-Oct-14 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TB208 = 2002 PW77 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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