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134584 (1999 TU44)
Classification: Main-belt Asteroid          SPK-ID: 2134584
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2196243248352102 3.9597e-08  
a 2.363034378678754 7.9499e-09 au
q 1.844054548699042 9.6036e-08 au
i 2.576241090474252 4.3677e-06 deg
node 236.9833864878875 9.5175e-05 deg
peri 145.2613651929259 9.5748e-05 deg
M 244.7466218429968 1.1488e-05 deg
tp 2459425.270795549283
(2021-Jul-29.77079555)
4.3736e-05 TDB
period 1326.793963378939
3.63
6.6955e-06
1.833e-08
d
yr
n .2713307491113316 1.3692e-09 deg/d
Q 2.882014208658465 9.6959e-09 au
  Orbit Determination Parameters
   # obs. used (total)      532  
   data-arc span      7590 days (20.78 yr)  
   first obs. used      1999-10-03  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51917  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:08:00  

Additional Information
 Earth MOID = .848008 au 
 Jupiter MOID = 2.5805 au 
 T_jup = 3.516 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457010.5 (2014-Dec-19.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2183093081420684 3.9459e-08  
q 1.847817919200743 9.5464e-08 au
tp 2456771.983273852655
(2014-Apr-24.48327385)
3.7061e-05 TDB
node 237.1389857305911 9.5277e-05 deg
peri 145.2337288580951 9.5864e-05 deg
i 2.573705054452339 4.3651e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      532  
   data-arc span      7590 days (20.78 yr)  
   first obs. used      1999-10-03  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51917  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:08:00  

Additional Information
 Jupiter MOID = 2.5805 au 
 T_jup = 3.516 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.557000373599233E-15 -3.759988775020801E-15 -2.118611295007032E-13 -2.201888277865893E-14 -3.394709606465318E-14 -1.528409605139207E-15
q -3.759988775020801E-15 9.11337960661524E-15 5.916293991612525E-13 5.538453420094688E-14 1.025977364876659E-13 3.802025158677807E-15
tp -2.118611295007032E-13 5.916293991612525E-13 1.373487441403638E-9 1.053818676318352E-11 4.084927989596835E-10 1.013984111860858E-12
node -2.201888277865893E-14 5.538453420094688E-14 1.053818676318352E-11 9.077714433214348E-9 -9.064958870279868E-9 -1.407346620155182E-11
peri -3.394709606465318E-14 1.025977364876659E-13 4.084927989596835E-10 -9.064958870279868E-9 9.189851144117235E-9 1.433009290288293E-11
i -1.528409605139207E-15 3.802025158677807E-15 1.013984111860858E-12 -1.407346620155182E-11 1.433009290288293E-11 1.905379184814895E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO338173  
diameter diameter 2.780 km 0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.065   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

134584 (1999 TU44)          Discovered 1999-Oct-03 by Spacewatch at Kitt Peak
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

Alternate Designations
 1999 TU44 = 1999 TZ326 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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