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172291 (2002 TH174)
Classification: Main-belt Asteroid          SPK-ID: 2172291
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0750409481339428 6.1264e-08  
a 2.713415947108708 2.9693e-08 au
q 2.509798641755911 1.6934e-07 au
i 8.62329241955794 6.6836e-06 deg
node 73.20711357643623 4.0243e-05 deg
peri 354.9897102843266 6.1449e-05 deg
M 291.3304871350902 5.2336e-05 deg
tp 2459311.911360786827
(2021-Apr-07.41136079)
0.00024003 TDB
period 1632.574416303237
4.47
2.6798e-05
7.337e-08
d
yr
n .2205106219998078 3.6196e-09 deg/d
Q 2.917033252461506 3.1921e-08 au
  Orbit Determination Parameters
   # obs. used (total)      334  
   data-arc span      7096 days (19.43 yr)  
   first obs. used      1998-11-16  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65022  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 07:07:02  

Additional Information
 Earth MOID = 1.52408 au 
 Jupiter MOID = 2.322 au 
 T_jup = 3.342 
[ 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 15.7   n/a MPO446069  
diameter diameter 3.791 km 0.810 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.078   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172291 (2002 TH174)          Discovered 2002-Oct-04 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

Alternate Designations
 2002 TH174 = 1998 WQ7 = 2004 CA92 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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