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21751 Jennytaylor (1999 RT176)
Classification: Main-belt Asteroid          SPK-ID: 2021751
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1386744473180719 3.3782e-08  
a 2.379680853811281 9.3214e-09 au
q 2.049679926615604 7.9572e-08 au
i 1.528930134054581 3.9731e-06 deg
node 252.8998047226277 0.00016312 deg
peri 239.436610206686 0.00016405 deg
M 160.0085132794228 1.8976e-05 deg
tp 2458604.540028506016
(2019-May-01.04002851)
6.9254e-05 TDB
period 1340.838592526469
3.67
7.8783e-06
2.157e-08
d
yr
n .2684886920816261 1.5775e-09 deg/d
Q 2.709681781006958 1.0614e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1130  
   data-arc span      11105 days (30.40 yr)  
   first obs. used      1990-02-24  
   last obs. used      2020-07-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4846  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:52:39  

Additional Information
 Earth MOID = 1.06454 au 
 Jupiter MOID = 2.32991 au 
 T_jup = 3.526 
[ 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 15.46   n/a E2021B10  

21751 Jennytaylor           Discovered 1999 Sept. 9 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Jennifer Ann Taylor (b. 1987) was awarded second place in the 2005 Intel International Science and Engineering Fair for her environmental sciences project. She attends the Florence High School, Florence, Alabama, 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 RT176 = 1990 DT2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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