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NCC EDR Status

NCC EDR Status. May 03, 2012. Stephanie Weiss, Steve Mills, Calvin Liang NGAS A&DP. NCC Sample of 4 Granules. ND_3475981_NCC_NorthAmerica_d20120504_t0826to0830. Hyperbolic shaped anomaly. Image provided by Tom Kopp. NCC Sample ADL reprocessed with min irrad = 0.

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NCC EDR Status

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  1. NCC EDR Status May 03, 2012 Stephanie Weiss, Steve Mills, Calvin Liang NGAS A&DP

  2. NCC Sample of 4 Granules ND_3475981_NCC_NorthAmerica_d20120504_t0826to0830 Hyperbolic shaped anomaly Image provided by Tom Kopp

  3. NCC Sample ADL reprocessed with min irrad = 0 Hyperbolic shaped anomaly eliminated S. Weiss NGAS

  4. Conclusion • Min irradiance change to 0 eliminates hyperbolic shaped anomaly in original NCC EDR • The triangular area is still missing, and was not fixed by this change • change appears to be due to some flaw in logic at the granule level • where there is a mix of Solar Zenith Angle (SlZA) both  > 105 deg and < 105deg it does not compute for those pixels > 105 deg SlZA ,  even there is sufficient  lunar radiance to produce an NCC image.    • However, if the entire granule is > 105 deg SlZA, and there is sufficient lunar illumination, it works fine.  • Is there a shortcut here applying granule level logic to bypass some pixel level tests?

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