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JPL Small-Body Database Browser
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91744 (1999 TD183)
Classification: Main-belt Asteroid          SPK-ID: 2091744
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1038164199199658 5.1337e-08  
a 3.11612366115747 3.1286e-08 au
q 2.792618858628205 1.7452e-07 au
i 10.98954057025074 7.0651e-06 deg
node 39.57837258023412 2.6087e-05 deg
peri 273.587864371203 4.3641e-05 deg
M 331.7949422757828 3.7181e-05 deg
tp 2459157.914576390606
(2020-Nov-04.41457639)
0.00020853 TDB
period 2009.187432081061
5.50
3.0258e-05
8.284e-08
d
yr
n .1791769121445887 2.6984e-09 deg/d
Q 3.439628463686735 3.4534e-08 au
  Orbit Determination Parameters
   # obs. used (total)      615  
   data-arc span      7171 days (19.63 yr)  
   first obs. used      1999-10-03  
   last obs. used      2019-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55844  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:36:42  

Additional Information
 Earth MOID = 1.80749 au 
 Jupiter MOID = 1.8757 au 
 T_jup = 3.181 
[ 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 14.6   n/a MPO474796  
diameter diameter 4.447 km 0.889 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.170   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91744 (1999 TD183)          Discovered 1999-Oct-11 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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