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226944 (2004 TZ344)
Classification: Main-belt Asteroid          SPK-ID: 2226944
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1183114681266641 4.3472e-08  
a 2.810811806371691 2.0642e-08 au
q 2.478260534932095 1.2278e-07 au
i 12.91912999344353 4.8793e-06 deg
node 53.21976327862814 2.4254e-05 deg
peri 63.46551351051228 3.6371e-05 deg
M 54.29070712977582 2.5001e-05 deg
tp 2458740.921285114986
(2019-Sep-14.42128512)
0.00011913 TDB
period 1721.25843075183
4.71
1.8961e-05
5.191e-08
d
yr
n .2091493023756783 2.3039e-09 deg/d
Q 3.143363077811287 2.3084e-08 au
  Orbit Determination Parameters
   # obs. used (total)      615  
   data-arc span      7052 days (19.31 yr)  
   first obs. used      2001-01-06  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51466  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 10:31:41  

Additional Information
 Earth MOID = 1.52522 au 
 Jupiter MOID = 2.09956 au 
 T_jup = 3.274 
[ 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 15.2   n/a MPO418211  
diameter diameter 4.280 km 0.184 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.096   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226944 (2004 TZ344)          Discovered 2004-Oct-15 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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