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129949 (1999 TG213)
Classification: Main-belt Asteroid          SPK-ID: 2129949
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2332207348477419 3.9201e-08  
a 2.361342733740283 1.4128e-08 au
q 1.810628646149999 9.9226e-08 au
i 21.22367277382675 7.0957e-06 deg
node 7.440226455780016 9.9902e-06 deg
peri 270.8076848997226 1.9542e-05 deg
M 315.8163618738671 1.5544e-05 deg
tp 2459163.165682396825
(2020-Nov-09.66568240)
5.7199e-05 TDB
period 1325.369483963369
3.63
1.1895e-05
3.257e-08
d
yr
n .2716223697285229 2.4377e-09 deg/d
Q 2.912056821330567 1.7423e-08 au
  Orbit Determination Parameters
   # obs. used (total)      621  
   data-arc span      7541 days (20.65 yr)  
   first obs. used      1999-09-05  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53585  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 21:48:22  

Additional Information
 Earth MOID = .938093 au 
 Jupiter MOID = 2.54134 au 
 T_jup = 3.425 
[ 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 15.8   n/a MPO366672  
diameter diameter 1.913 km 0.571 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.253   0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129949 (1999 TG213)          Discovered 1999-Oct-15 by LINEAR at Socorro
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

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