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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .120113076272838 6.2714e-08  
a 2.976171929008775 2.5984e-08 au
q 2.618694763098664 1.9242e-07 au
i 10.48171277113883 6.3018e-06 deg
node 18.54817156293281 2.5152e-05 deg
peri 1.671360670931029 3.5404e-05 deg
M 29.86524566091904 2.2769e-05 deg
tp 2458844.921692795319
(2019-Dec-27.42169280)
0.00011837 TDB
period 1875.363465266126
5.13
2.456e-05
6.724e-08
d
yr
n .1919627883701541 2.5139e-09 deg/d
Q 3.333649094918885 2.9105e-08 au
  Orbit Determination Parameters
   # obs. used (total)      497  
   data-arc span      6792 days (18.60 yr)  
   first obs. used      2002-04-08  
   last obs. used      2020-11-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54883  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 05:33:42  

Additional Information
 Earth MOID = 1.62118 au 
 Jupiter MOID = 2.13024 au 
 T_jup = 3.225 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457652.5 (2016-Sep-21.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1199034146225457 6.4449e-08  
q 2.621081679334055 1.9803e-07 au
tp 2456956.860417352050
(2014-Oct-26.36041735)
0.00011662 TDB
node 18.6173348642637 2.5087e-05 deg
peri 359.7362416698882 3.5217e-05 deg
i 10.49893475878313 6.3151e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      497  
   data-arc span      6792 days (18.60 yr)  
   first obs. used      2002-04-08  
   last obs. used      2020-11-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54883  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 05:33:42  

Additional Information
 Jupiter MOID = 2.13024 au 
 T_jup = 3.225 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.153623508136738E-15 -1.268055654521163E-14 -3.84400380173432E-12 -3.115925961612168E-14 -8.884378933909574E-13 3.69417639661268E-15
q -1.268055654521163E-14 3.92145971628933E-14 1.13217413553071E-11 9.557702627685253E-14 2.667928040644144E-12 -1.050320870080443E-14
tp -3.84400380173432E-12 1.13217413553071E-11 1.360082729359176E-8 3.83572732608568E-11 2.893539858999521E-9 -1.476266044511875E-11
node -3.115925961612168E-14 9.557702627685253E-14 3.83572732608568E-11 6.293405687463753E-10 -6.093677799915393E-10 -5.555886487253609E-11
peri -8.884378933909574E-13 2.667928040644144E-12 2.893539858999521E-9 -6.093677799915393E-10 1.240202177451519E-9 5.143992080008666E-11
i 3.69417639661268E-15 -1.050320870080443E-14 -1.476266044511875E-11 -5.555886487253609E-11 5.143992080008666E-11 3.988034910592519E-11

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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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