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Sky Map Differences Analysis: B1950 vs. J2000 System

Explore the unexpected variations between Dinnat and Floury sky maps assuming J2000 system. Transform Dinnat map to B1950 and compare HI line contributions for Aquarius and SMOS. Analyze the impact of frequency differences on MIRAS.

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Sky Map Differences Analysis: B1950 vs. J2000 System

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  1. SkymapDifferences

  2. Assume bothDinnat and Flouryskymaps are in J2000 system

  3. Assume Flourymapis in B1950 and Dinnatmapis in J2000

  4. DinnatMapTransformedinto the B1950 system

  5. FlouryMapassumingitwasprovided in B1950 system

  6. Differencemaprevealsunexpecteddifferences

  7. DinnatMap for Aquarius – FlouryMap for SMOS Dinnatmap HI line contribution is for 26 MHz Aquarius

  8. DinnatMap for SMOS – FlouryMap for SMOS Dinnatmap HI line contribution is for 19 MHz MIRAS

  9. DinnatMap for SMOS – DinnatMap for Aquarius Shows impact of increased HI contribution for MIRAS

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