SGP/MFRSR/E38 - Shading issue, shadowband slipping

A problem with the motor occurred or the shadowband was slipping on the shaft.  It doesn't 
look like a typical shading problem.  Not every day covered by this DQR is impacted, but 
there are enough that it was not practical to break out each day with an issue.  In 
general, the problem is from sunrise to ~1800 UTC, though that can vary.

null

• Diffuse Hemispheric Broadband Irradiance, offset corrected(diffuse_hemisp_broadband)
• Hemispheric broadband irradiance(hemisp_broadband_raw)
• Narrowband hemispheric irradiance, filter 4(hemisp_narrowband_filter4_raw)
• Diffuse narrowband hemispheric irradiance, filter 6(diffuse_hemisp_narrowband_filter6_raw)
• Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3_raw)
• Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6_raw)
• Diffuse Narrowband Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5_raw)
• Narrowband hemispheric irradiance, filter 5(hemisp_narrowband_filter5_raw)
• Diffuse narrowband hemispheric irradiance, filter 4(diffuse_hemisp_narrowband_filter4_raw)
• Diffuse narrowband hemispheric irradiance, filter 3(diffuse_hemisp_narrowband_filter3_raw)
• Hemispheric broadband irradiance(hemisp_broadband)
• Direct Horizontal Broadband Irradiance(direct_horizontal_broadband)
• Narrowband hemispheric irradiance, filter 3, offset and cosine corrected(hemisp_narrowband_filter3)
• Narrowband Direct Horizontal Irradiance, Filter 4, cosine corrected(direct_horizontal_narrowband_filter4)
• Narrowband hemispheric irradiance, filter 4, offset and cosine corrected(hemisp_narrowband_filter4)
• Direct Horizontal Narrowband Irradiance, Filter 3(direct_horizontal_narrowband_filter3)
• Diffuse narrowband hemispheric irradiance, filter 1(diffuse_hemisp_narrowband_filter1_raw)
• Narrowband Direct Horizontal Irradiance, Filter 2, cosine corrected(direct_horizontal_narrowband_filter2)
• Narrowband Hemispheric Irradiance, Filter 5, offset corrected(hemisp_narrowband_filter5)
• Narrowband hemispheric irradiance, filter 6, nominal wavelength is 935 nm(hemisp_narrowband_filter6)
• Direct horizontal narrowband irradiance, filter 1(direct_horizontal_narrowband_filter1)
• Diffuse Narrowband Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2_raw)
• Narrowband Hemispheric Irradiance, Filter 1, offset corrected(hemisp_narrowband_filter1)
• Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2)
• Narrowband hemispheric irradiance, filter 1(hemisp_narrowband_filter1_raw)
• Narrowband hemispheric irradiance, filter 2(hemisp_narrowband_filter2_raw)
• Narrowband Direct Horizontal Irradiance, Filter 6, cosine corrected(direct_horizontal_narrowband_filter6)
• Narrowband Direct Horizontal Irradiance, Filter 5, cosine corrected(direct_horizontal_narrowband_filter5)
• Diffuse Hemispheric Broadband Irradiance(diffuse_hemisp_broadband_raw)
• Diffuse Narrowband Hemispheric Irradiance, Filter 2, offset corrected(diffuse_hemisp_narrowband_filter2)
• Diffuse Narrowband Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3)
• Diffuse Narrowband Hemispheric Irradiance, Filter 1, offset corrected(diffuse_hemisp_narrowband_filter1)
• Diffuse Narrowband Hemispheric Irradiance, Filter 6, offset corrected(diffuse_hemisp_narrowband_filter6)
• Diffuse Narrowband Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)
• Narrowband diffuse hemispheric irradiance, filter 5, offset and cosine corrected(diffuse_hemisp_narrowband_filter5)

• Ratio of direct_normal_broadband to diffuse_hemisp_broadband(direct_diffuse_ratio_broadband)
• Ratio of direct_normal_filter2 to diffuse_hemisp_filter2(direct_diffuse_ratio_filter2)
• Ratio of direct_normal_narrowband_filter3 to diffuse_hemisp_narrowband_filter3(direct_diffuse_ratio_filter3)
• Ratio of direct_normal_filter4 to diffuse_hemisp_filter4(direct_diffuse_ratio_filter4)
• Ratio of direct_normal_filter5 to diffuse_hemisp_filter5(direct_diffuse_ratio_filter5)
• Ratio of direct_normal_narrowband_filter6 to diffuse_hemisp_narrowband_filter6(direct_diffuse_ratio_filter6)
• Narrowband Direct Horizontal Irradiance, Filter 6, cosine corrected(direct_horizontal_narrowband_filter6)
• Narrowband Direct Horizontal Irradiance, Filter 5, cosine corrected(direct_horizontal_narrowband_filter5)
• Direct Horizontal Broadband Irradiance(direct_horizontal_broadband)
• Narrowband Direct Normal Irradiance, Filter 5(direct_normal_narrowband_filter5)
• Direct normal narrowband irradiance, filter 4, offset corrected(direct_normal_narrowband_filter4)
• Direct normal narrowband irradiance, filter 6, offset corrected(direct_normal_narrowband_filter6)
• Narrowband Direct Normal Irradiance, Filter 1(direct_normal_narrowband_filter1)
• Narrowband Direct Normal Irradiance, Filter 3, cosine corrected(direct_normal_narrowband_filter3)
• Direct normal narrowband irradiance, filter 2, offset corrected(direct_normal_narrowband_filter2)
• Ratio of direct_normal_filter1 to diffuse_hemisp_filter1(direct_diffuse_ratio_filter1)
• Direct Normal Broadband Irradiance, cosine corrected, broadband scale applied(direct_normal_broadband)
• Diffuse Narrowband Hemispheric Irradiance, Filter 2, offset corrected(diffuse_hemisp_narrowband_filter2)
• Diffuse Narrowband Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3)
• Diffuse Narrowband Hemispheric Irradiance, Filter 1, offset corrected(diffuse_hemisp_narrowband_filter1)
• Diffuse Hemispheric Broadband Irradiance, offset corrected(diffuse_hemisp_broadband)
• Diffuse Narrowband Hemispheric Irradiance, Filter 6, offset corrected(diffuse_hemisp_narrowband_filter6)
• Diffuse Narrowband Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)
• Narrowband diffuse hemispheric irradiance, filter 5, offset and cosine corrected(diffuse_hemisp_narrowband_filter5)
• Narrowband Hemispheric Irradiance, Filter 5, offset corrected(hemisp_narrowband_filter5)
• Narrowband hemispheric irradiance, filter 6, nominal wavelength is 935 nm(hemisp_narrowband_filter6)
• Narrowband hemispheric irradiance, filter 3, offset and cosine corrected(hemisp_narrowband_filter3)
• Narrowband hemispheric irradiance, filter 4, offset and cosine corrected(hemisp_narrowband_filter4)
• Narrowband Hemispheric Irradiance, Filter 1, offset corrected(hemisp_narrowband_filter1)
• Narrowband Direct Horizontal Irradiance, Filter 4, cosine corrected(direct_horizontal_narrowband_filter4)
• Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2)
• Direct Horizontal Narrowband Irradiance, Filter 3(direct_horizontal_narrowband_filter3)
• Narrowband Direct Horizontal Irradiance, Filter 2, cosine corrected(direct_horizontal_narrowband_filter2)
• Direct horizontal narrowband irradiance, filter 1(direct_horizontal_narrowband_filter1)
• Hemispheric broadband irradiance(hemisp_broadband)