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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .219624315351348 4.3358e-08  
a 2.363034381227463 7.9515e-09 au
q 1.844054573098685 1.0476e-07 au
i 2.57624364022928 4.4306e-06 deg
node 236.9835356527726 0.00011314 deg
peri 145.2612059447443 0.00011382 deg
M 244.7466274716455 1.2669e-05 deg
tp 2459425.270775491900
(2021-Jul-29.77077549)
4.7978e-05 TDB
period 1326.793965525508
3.63
6.6969e-06
1.834e-08
d
yr
n .2713307486723559 1.3695e-09 deg/d
Q 2.88201418935624 9.6979e-09 au
  Orbit Determination Parameters
   # obs. used (total)      507  
   data-arc span      7117 days (19.49 yr)  
   first obs. used      1999-10-03  
   last obs. used      2019-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52222  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:02:56  

Additional Information
 Earth MOID = .848008 au 
 Jupiter MOID = 2.5805 au 
 T_jup = 3.516 
[ 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 16.8   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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