| DQR ID | Subject | Data Streams Affected | Data Quality Metric |
|---|---|---|---|
| D140221.8 | SGP/RL/C1 - Reprocessing Notice (RID 1026) | sgprlprofmerge1turnC1.c0 | Does not affect quality |
| D140326.7 | SGP/RLPROF/C1 - Reduced signal due to partially closed laser shutter | sgprlprofmerge1turnC1.c0 | Suspect |
| D140416.3 | SGP/RLPROF/C1 - Reduced SNR due to partial laser blockage | sgprlprofmerge1turnC1.c0 | Suspect |
| D140619.4 | SGP/RLPROF/C1 - Invalid data due to hatch closure | sgprlprofmerge1turnC1.c0 | Incorrect |
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 05/03/2012 | 0000 | 01/28/2014 | 0000 | Does not affect quality |
| Subject: | SGP/RL/C1 - Reprocessing Notice (RID 1026) |
| DataStreams: | sgprlprofmerge1turnC1.c0 |
| Description: | See below for details of reprocessing that was completed on 20140822. Original DQR category:3 (Yellow, Suspect ). ----------------------------------------------------------- Regions where photon counting rates exceed 20 MHz are 37.5 meters too high. Correct data by shifting down 37.5 meters. Additional information: The detection system in the RL uses Licel data recorders. These recorders provide simultaneous measurements of analog voltage and photon counts from the photo multiplier tubes. The analog signal has an inherent delay relative to the photon counting signal, which is corrected for in the rlprofmerge VAP. The delay parameter is determined through offline analysis by the instrument mentor, and then inputted into a configuration file that is used by the VAP. During the effected period, the delay parameter for the narrow-field-of-view elastic channel was incorrect. As a result, the analog signal leads the photon counting signal by 5 range bins (5X7.5m = 37.5m). Photon counting rates that are outputted by the rlprofmerge VAP use the analog signals in regions where the photon counting rates exceed 20 MHz. So the counting rate data in these regions are (incorrectly) shifted downward by 37.5 m (i.e. -37.5m). |
| Measurements: | sgprlprofmerge1turnC1.c0:
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 03/25/2014 | 1500 | 03/26/2014 | 1220 | Suspect |
| Subject: | SGP/RLPROF/C1 - Reduced signal due to partially closed laser shutter |
| DataStreams: | sgprlprofmerge1turnC1.c0 |
| Description: | The laser shutter was partially closed during the period in question. This resulted in a reduction in the sensitivity of all detection channels. |
| Measurements: | sgprlprofmerge1turnC1.c0:
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 03/25/2014 | 1500 | 03/26/2014 | 1215 | Suspect |
| Subject: | SGP/RLPROF/C1 - Reduced SNR due to partial laser blockage |
| DataStreams: | sgprlprofmerge1turnC1.c0 |
| Description: | The laser output was partially blocked. This resulted in reduced SNR in all detection channels. |
| Measurements: | sgprlprofmerge1turnC1.c0:
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 06/18/2014 | 1910 | 06/19/2014 | 2145 | Incorrect |
| Subject: | SGP/RLPROF/C1 - Invalid data due to hatch closure |
| DataStreams: | sgprlprofmerge1turnC1.c0 |
| Description: | The outgoing beam was completely blocked by the hatch. As a result, the data contain no valid atmospheric signals. |
| Measurements: | sgprlprofmerge1turnC1.c0:
|