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216424 (2008 TZ172)
Classification: Main-belt Asteroid          SPK-ID: 2216424
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .145303918943473 6.7062e-08  
a 2.610734290594313 2.3229e-08 au
q 2.231384366850851 1.8937e-07 au
i 13.07255633977016 5.5019e-06 deg
node 99.88639133573851 1.8463e-05 deg
peri 337.3625027161905 2.6391e-05 deg
M 349.8794264344564 1.4919e-05 deg
tp 2459243.815672586570
(2021-Jan-29.31567259)
6.365e-05 TDB
period 1540.786402092368
4.22
2.0563e-05
5.63e-08
d
yr
n .2336469217998839 3.1183e-09 deg/d
Q 2.990084214337774 2.6604e-08 au
  Orbit Determination Parameters
   # obs. used (total)      445  
   data-arc span      6357 days (17.40 yr)  
   first obs. used      2003-10-27  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51489  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:41:43  

Additional Information
 Earth MOID = 1.25223 au 
 Jupiter MOID = 2.25111 au 
 T_jup = 3.358 
[ 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 16.03   n/a MPCxxxxx  
diameter diameter 3.502 km 0.768 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

216424 (2008 TZ172)          Discovered 2008-Oct-01 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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