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21840 Ghoshchoudhury (1999 TT101)
Classification: Main-belt Asteroid          SPK-ID: 2021840
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09981844110493908 3.8555e-08  
a 2.319342249116132 7.5831e-09 au
q 2.087829121420536 9.2394e-08 au
i 7.419301671139625 2.9063e-06 deg
node 94.14726742955639 3.639e-05 deg
peri 315.6272481831248 4.2656e-05 deg
M 337.7606462991121 2.208e-05 deg
tp 2459280.201289301039
(2021-Mar-06.70128930)
7.9177e-05 TDB
period 1290.166276155251
3.53
6.3273e-06
1.732e-08
d
yr
n .2790338010328521 1.3685e-09 deg/d
Q 2.550855376811727 8.3401e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1514  
   data-arc span      8746 days (23.95 yr)  
   first obs. used      1997-02-04  
   last obs. used      2021-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50874  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:54:40  

Additional Information
 Earth MOID = 1.10539 au 
 Jupiter MOID = 2.7445 au 
 T_jup = 3.561 
[ 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 14.92   n/a E2021B10  

21840 Ghoshchoudhury           Discovered 1999 Oct. 2 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Triparna Ghosh-Choudhury (b. 1987) was awarded third place in the 2005 Intel International Science and Engineering Fair for her medicine and health project. She also received the Intel Foundation Achievement Award. She attends the Northside Health Careers High School, San Antonio, Texas, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050822/MPCPages.arcLast Updated: 2005-08-26

[ show close-approach data ]
Alternate Designations
 1999 TT101 = 1997 CH19 = 1998 KX41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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