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JPL Small-Body Database Browser
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173220 (1998 TN26)
Classification: Main-belt Asteroid          SPK-ID: 2173220
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .253624161786785 4.5694e-08  
a 2.630082340087823 1.1061e-08 au
q 1.963029911152823 1.2372e-07 au
i 1.745571390944508 4.9747e-06 deg
node 18.79146818713117 0.00014381 deg
peri 345.9972784386517 0.0001442 deg
M 310.8395452134149 8.7481e-06 deg
tp 2458813.248171319431
(2019-Nov-25.74817132)
3.7967e-05 TDB
period 1557.946158299065
4.27
9.8282e-06
2.691e-08
d
yr
n .2310734540358191 1.4577e-09 deg/d
Q 3.297134769022823 1.3867e-08 au
  Orbit Determination Parameters
   # obs. used (total)      406  
   data-arc span      8572 days (23.47 yr)  
   first obs. used      1996-03-18  
   last obs. used      2019-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63102  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:46:01  

Additional Information
 Earth MOID = .960385 au 
 Jupiter MOID = 2.15938 au 
 T_jup = 3.353 
[ 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 16.5   n/a MPO439992  

173220 (1998 TN26)          Discovered 1998-Oct-14 by Spacewatch at Kitt Peak
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 1998 TN26 = 2002 PT84 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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