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22909 Gongmyunglee (1999 TJ28)
Classification: Main-belt Asteroid          SPK-ID: 2022909
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04248703065501722 4.4393e-08  
a 2.636108063730012 1.2914e-08 au
q 2.524107659616377 1.1175e-07 au
i 2.21940946213962 3.6525e-06 deg
node 300.4367229286573 9.6526e-05 deg
peri 228.5310117962459 0.00010524 deg
M 180.3796817385455 4.3316e-05 deg
tp 2459980.502872531297
(2023-Feb-05.00287253)
0.00019016 TDB
period 1563.303287897165
4.28
1.1487e-05
3.145e-08
d
yr
n .2302816112439988 1.6921e-09 deg/d
Q 2.748108467843647 1.3462e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1384  
   data-arc span      9689 days (26.53 yr)  
   first obs. used      1994-07-11  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49407  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:14:40  

Additional Information
 Earth MOID = 1.53013 au 
 Jupiter MOID = 2.22242 au 
 T_jup = 3.395 
[ 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 14.66   n/a E2021B10  
diameter diameter 3.008 km 0.957 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.235   0.136 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22909 Gongmyunglee           Discovered 1999 Oct. 4 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Gongmyung Lee (b. 1989) is a finalist in the 2007 Intel Science Talent Search (STS), a science competition for high school seniors, for his computer science project. He attends the Phillips Exeter Academy, Exeter, New Hampshire.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070303/MPCPages.arcLast Updated: 2010-04-12

Alternate Designations
 1999 TJ28 = 1994 NT8 = 1997 EQ39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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