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21846 Wojakowski (1999 TT114)
Classification: Main-belt Asteroid          SPK-ID: 2021846
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1112458418065171 3.6335e-08  
a 2.403798312074457 1.1412e-08 au
q 2.13638574531465 9.0159e-08 au
i 1.727700167550527 4.6551e-06 deg
node 316.370843164506 0.00013155 deg
peri 271.1549669507295 0.00013365 deg
M 224.4953409727934 2.6524e-05 deg
tp 2459112.885926502070
(2020-Sep-20.38592650)
0.00010165 TDB
period 1361.273736748119
3.73
9.6941e-06
2.654e-08
d
yr
n .2644581984369922 1.8833e-09 deg/d
Q 2.671210878834266 1.2682e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1133  
   data-arc span      9992 days (27.36 yr)  
   first obs. used      1991-08-05  
   last obs. used      2018-12-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51338  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 00:01:07  

Additional Information
 Earth MOID = 1.12738 au 
 Jupiter MOID = 2.31576 au 
 T_jup = 3.515 
[ 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 15.1   n/a MPO358837  
diameter diameter 5.170 km 0.202 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21846 Wojakowski           Discovered 1999 Oct. 4 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Maria Malgorzata Wojakowski (b. 1987) was awarded fourth place in the 2005 Intel International Science and Engineering Fair for her zoology project. She also received the Intel Foundation Achievement Award. She attends the Townsend Harris High School at Queens College, Flushing, New York, 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

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Alternate Designations
 1999 TT114 = 1991 PQ26 = 1998 KO17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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