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22003 Startek (1999 XO42)
Classification: Main-belt Asteroid          SPK-ID: 2022003
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05645995180193313 3.8602e-08  
a 2.934765803366763 1.539e-08 au
q 2.769069067558715 1.1687e-07 au
i 1.459973840700994 3.9889e-06 deg
node 7.39896880882845 0.00014741 deg
peri 133.9151387268153 0.00015187 deg
M 307.8644527719092 3.5445e-05 deg
tp 2459266.443902491874
(2021-Feb-20.94390249)
0.00018117 TDB
period 1836.363287378901
5.03
1.4445e-05
3.955e-08
d
yr
n .1960396412160033 1.542e-09 deg/d
Q 3.100462539174812 1.6259e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1512  
   data-arc span      9929 days (27.18 yr)  
   first obs. used      1993-08-15  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53468  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:53:42  

Additional Information
 Earth MOID = 1.78197 au 
 Jupiter MOID = 1.89518 au 
 T_jup = 3.272 
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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 14.3   n/a MPO333021  
diameter diameter 3.916 km 0.988 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.264   0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22003 Startek           Discovered 1999 Dec. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Jennifer Startek mentored a finalist in the 2005 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. She teaches at the Southwestern Educational Society, Mayaguez, Puerto Rico.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051019/MPCPages.arcLast Updated: 2005-10-26

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Alternate Designations
 1999 XO42 = 1996 DM1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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