| Subject: | GRW/TSI/M1 - Shadowband Misalignment |
| DataStreams: | grwtsiskyimageM1.a1, grwtsiskycoverM1.b1, grwtsicldmaskM1.a1
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| Description: | The shadowband was intermittently misaligned and not completely masking the sun because
the mirror became loose from the shaft while being polished. The shadowband was realigned
on 1/14 but by 1/27 was again slightly misaligned. The instrument was reoriented with true
north on 1/27 and the shadowband adjusted again on 1/31. The problem was corrected on
2/2 when the mirror mounting was tightened and the shadowband realigned. |
| Suggestions: | |
| Measurements: | grwtsiskyimageM1.a1: - null(JPEG data stream - documentation not yet available)
more
grwtsiskycoverM1.b1: - Pixel count: number total in horizon area(region_horizon_count)
- Percent thin cloud(percent_thin)
- Pixel count: number opaque in sun circle(region_sun_count_opaque)
- Pixel count: number opaque in zenith circle(region_zenith_count_opaque)
- Pixel count: number total in zenith circle(region_zenith_count)
- Pixel count: number in box, outside mirror area(count_box)
- Pixel count: number thin in horizon area(region_horizon_count_thin)
- Pixel count: number thin in zenith circle(region_zenith_count_thin)
- Pixel count: number total thin(count_thin)
- Pixel count: number total between horizon and processed circle(count_sub_proczen)
- Pixel count: number in camera and sun strip mask(count_mask)
- Pixel count: number total in processed circle(count_sky)
- Pixel count: number thin in sun circle(region_sun_count_thin)
- Pixel count: number total opaque(count_opaque)
- Pixel count: number total in sun circle(region_sun_count)
- Pixel count: number opaque in horizon area(region_horizon_count_opaque)
- Pixel count: number below horizon in image(count_sub_horz)
- Percent opaque cloud(percent_opaque)
more
grwtsicldmaskM1.a1: - PNG data stream - documentation not supported(png)
more
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