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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .111148195751663 3.576e-08  
a 2.403190788741438 9.5253e-09 au
q 2.136080468525812 8.9515e-08 au
i 1.727986247348732 4.5129e-06 deg
node 316.3690789191613 0.00011531 deg
peri 271.2948420806932 0.00011731 deg
M 330.1492561692967 2.2562e-05 deg
tp 2459113.332304849285
8.5365e-05 TDB
period 1360.757707617417
n .2645584867789083 1.5729e-09 deg/d
Q 2.670301108957065 1.0584e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1401  
   data-arc span      10522 days (28.81 yr)  
   first obs. used      1991-08-05  
   last obs. used      2020-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48718  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:54:38  

Additional Information
 Earth MOID = 1.12702 au 
 Jupiter MOID = 2.31615 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 15.11   n/a E2021B10  
diameter diameter 5.170 km 0.202 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.055   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2056-Nov-13 22:24 00:02 Vesta 0.0306397235998181 0.0306345736665253 0.0306448755746823 2.86686904006274 2.86686768549105 2472316.433088650 2.45412105875379 468.916409286417 29.6861099531245 57.2911696292401 128967.97295232 T 25 CATAB v2.0f-lin.ifort 2020-Nov-13 01:54:41 2020-Nov-13 01:54

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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