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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2193238980294047 3.9643e-08  
a 2.363923397826779 8.0326e-09 au
q 1.845458503572494 9.6182e-08 au
i 2.57493530031743 4.3659e-06 deg
node 236.9606178979923 9.524e-05 deg
peri 145.1769064297484 9.5814e-05 deg
M 299.080370069625 1.1667e-05 deg
tp 2459425.148374997688
(2021-Jul-29.64837500)		 4.378e-05 TDB
period 1327.542782049038
3.63		 6.7664e-06
1.853e-08		 d
yr
n .2711777012898572 1.3822e-09 deg/d
Q 2.882388292081064 9.7943e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5192  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:09:01  

Additional Information
 Earth MOID = .848078 au 
 Jupiter MOID = 2.58146 au 
 T_jup = 3.515 
[ 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 16.78   n/a E2021B55  
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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