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226893 (2004 TQ144)
Classification: Main-belt Asteroid          SPK-ID: 2226893
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1201130744190896 6.7735e-08  
a 2.976171929702337 2.7525e-08 au
q 2.618694769225995 2.1002e-07 au
i 10.48171283196761 6.8294e-06 deg
node 18.54817142816188 2.5702e-05 deg
peri 1.671360989381074 3.5873e-05 deg
M 29.86524538348326 2.3117e-05 deg
tp 2458844.921694186193
(2019-Dec-27.42169419)
0.00012007 TDB
period 1875.363465921673
5.13
2.6016e-05
7.123e-08
d
yr
n .191962788303052 2.663e-09 deg/d
Q 3.33364909017868 3.0831e-08 au
  Orbit Determination Parameters
   # obs. used (total)      488  
   data-arc span      6778 days (18.56 yr)  
   first obs. used      2002-04-08  
   last obs. used      2020-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54938  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 02:30:19  

Additional Information
 Earth MOID = 1.62118 au 
 Jupiter MOID = 2.13024 au 
 T_jup = 3.225 
[ 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 15.3   n/a MPO440184  
diameter diameter 2.776 km 0.642 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.191   0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226893 (2004 TQ144)          Discovered 2004-Oct-04 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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