| DQR ID | Subject | Data Streams Affected |
|---|
| D070608.2 | NSA/TSI/C1 - camera lens covered | nsatsicldmaskC1.a1, nsatsiskycoverC1.b1, nsatsiskyimageC1.a1 |
| D070608.3 | NSA/TSI/C1 - shadowband misaligned | nsatsiskycoverC1.b1, nsatsiskyimageC1.a1, nsatsicldmaskC1.a1 |
| D080331.3 | NSA/TSI/C1 - frost/condensation in lens | nsatsiskycoverC1.b1, nsatsiskyimageC1.a1 |
| D090302.1 | NSA/TSI/C1 - Mirror frozen | nsatsicldmaskC1.a1, nsatsiskycoverC1.b1, nsatsiskyimageC1.a1 |
| Subject: | NSA/TSI/C1 - camera lens covered |
| DataStreams: | nsatsicldmaskC1.a1, nsatsiskycoverC1.b1, nsatsiskyimageC1.a1
|
| Description: | The shadowband was not properly masking the sun so the camera lens was covered on 4/13 to
prevent damage to the CCD. On 4/20, the mirror was blown off by a snow storm and the
instrument was brought inside for repair. The mirror was replaced, the lens uncovered, and
the instrument reinstalled. |
| Measurements: | nsatsiskycoverC1.b1: - region.zenith.count.opaque
- count.sub.horz
- count.sub.proczen
- count.opaque
- Cloud amount, thin (percent)(percent.thin)
- count.thin
- region.horizon.count.opaque
- region.sun.count
- region.horizon.count.thin
- count.unknown
- region.horizon.count
- region.zenith.count
- region.sun.count.thin
- Sunshine Meter(sunny)
- region.zenith.count.thin
- sun.strength
- region.sun.count.opaque
- count.box
- count.sky
- count.mask
- Cloud amount, opaque (percent)(percent.opaque)
nsatsicldmaskC1.a1: - Cloud decision images, Total Sky Imager, PNG format(png)
nsatsiskyimageC1.a1: - JPEG data stream - documentation not yet available
|
| Subject: | NSA/TSI/C1 - shadowband misaligned |
| DataStreams: | nsatsiskycoverC1.b1, nsatsiskyimageC1.a1, nsatsicldmaskC1.a1
|
| Description: | At several times during this period the shadowband did not mask the sun because the mirror
was not properly secured. Attempts were made to align the mirror on 4/2, 4/3, and 4/10. |
| Measurements: | nsatsiskycoverC1.b1: - region.zenith.count.opaque
- count.sub.horz
- count.sub.proczen
- count.opaque
- Cloud amount, thin (percent)(percent.thin)
- count.thin
- region.horizon.count.opaque
- region.sun.count
- region.horizon.count.thin
- count.unknown
- region.horizon.count
- region.zenith.count
- region.sun.count.thin
- region.zenith.count.thin
- sun.strength
- region.sun.count.opaque
- count.box
- count.sky
- count.mask
- Cloud amount, opaque (percent)(percent.opaque)
nsatsicldmaskC1.a1: - Cloud decision images, Total Sky Imager, PNG format(png)
nsatsiskyimageC1.a1: - JPEG data stream - documentation not yet available
|
| Subject: | NSA/TSI/C1 - Mirror frozen |
| DataStreams: | nsatsicldmaskC1.a1, nsatsiskycoverC1.b1, nsatsiskyimageC1.a1
|
| Description: | The mirror was not rotating so the shadowband was not masking the sun. This appears to
have been caused by snow that was melted by the mirror heater and then re-frozen by high,
cold winds. |
| Measurements: | nsatsiskycoverC1.b1: - region.zenith.count.opaque
- count.opaque
- Cloud amount, thin (percent)(percent.thin)
- count.thin
- region.horizon.count.opaque
- region.sun.count
- region.horizon.count.thin
- region.horizon.count
- region.sun.count.thin
- region.zenith.count
- region.zenith.count.thin
- region.sun.count.opaque
- count.sky
- Cloud amount, opaque (percent)(percent.opaque)
nsatsicldmaskC1.a1: - Cloud decision images, Total Sky Imager, PNG format(png)
nsatsiskyimageC1.a1: - JPEG data stream - documentation not yet available
|