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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05638845217389013 3.8294e-08  
a 2.934783463360152 1.2992e-08 au
q 2.769295566395745 1.1484e-07 au
i 1.46003467833895 3.6166e-06 deg
node 7.391650326939603 0.00013909 deg
peri 133.6345972908739 0.00014323 deg
M 25.75104875597204 3.1923e-05 deg
tp 2459265.142479487704
(2021-Feb-19.64247949)		 0.00016291 TDB
period 1836.37986291566
5.03		 1.2194e-05
3.339e-08		 d
yr
n .196037871722477 1.3018e-09 deg/d
Q 3.10027136032456 1.3725e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1786  
   data-arc span      10160 days (27.82 yr)  
   first obs. used      1993-08-15  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5155  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 05:13:04  

Additional Information
 Earth MOID = 1.78295 au 
 Jupiter MOID = 1.89425 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 14.34   n/a MPCxxxxx  
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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