####################################### # This README file includes the Cal/Val Data Exclusion List (blocklisted dates) provided by ESA. # # Last Updated: 2023-03-06 K.Lukens NOAA/NESDIS/STAR ####################################### - The time periods listed have known degraded data content and are NOT recommended for use in research or operations. - Note on Hot Pixels: It should be noted that a patch was implemented into the operational processor which corrects pixel intensities for elevated dark signal levels on Friday June 14, 2019 at 08:30 UTC. From that moment on, hot pixel affected range gates do not have to be avoided for further studies. - Source of this information: https://www.aeolus.esa.int/confluence/pages/viewpage.action?pageId=327763 A complete list of blocklisted dates for FM-B data can be found here: https://earth.esa.int/eogateway/documents/20142/1838788/Aeolus-data-excluded-FMB.pdf/8a572871-2025-3fee-222e-5f45b8fe6791 ======================================= = Blocklisted Dates ======================================= START TIME STOP TIME EXPLANATION ...Below corresponds to FM-A data: 2023-02-20 2023-03-02 10:31:00 Temporary degradation under investigation. ...Below corresponds to FM-B data: 2021-10-18 15:00:00 2021-10-23 16:30:00 In the frame of instrument sensitivity test with the Master Oscillator, the Aeolus dataset may not meet the quality standards and is therefore flagged at data processing level. Please consider the data quality flag. 2021-10-05 00:00:00 2021-10-05 23:59:59 1-day test with new P/N setting. The test aims at improving the grouping and classification for L2B Rayleigh clear and Mie cloudy winds, which is necessary due to the on-going atmospheric path signal decrease. The test will increase the on-board number of accumulated pulses from currently P=19 to P=38, which will result in a doubling of the horizontal integration length for 1 measurement from about 2.9 km to 5.8 km. This will increase the signal-to-noise ration of the measurement scale information, which is used for grouping and classification for the L2B product. Also the measurement length for the L1B and L2A product will be affected. 2021-03-29 00:00:00 2021-05-03 00:00:00 Blocklisted data products after laser went into survival mode. 2021-01-31 00:25:00 2021-02-04 23:59:59 Instrument special operation - M1 telescope thermal test 2021-01-22 10:02:00 2021-01-27 23:59:59 Instrument special operation - M1 telescope thermal test 2021-01-14 01:13:00 2021-01-14 07:26:00 Instrument special operation - dt2 (Aladin internal delay) test. 2020-12-09 10:00 2020-12-14 10:00 Quality flagging of Rayleigh wind data. Mie wind data is not affected and does not need to be flagged. 2020-11-24 16:00:00 2020-11-26 23:59:59 Instrument special operation - Cold plate sensitivity test. 2020-11-17 16:00:00 2020-11-20 15:00:00 Instrument special operation - Cold plate sensitivity test. 2020-10-05 01:59:00 2020-10-11 01:00:00 Laser sensitivity test - Sequence 2 and 3. 2020-09-21 00:00:00 2020-09-25 03:05:00 Extended laser sensitivity test - Sequence 1. The test results aim to provide input into future signal recovery operations. 2020-07-06 04:00:00 2020-07-10 23:59:00 Aeolus special operation: M1 telescope thermal control test 2020-05-25 07:30:00 2020-05-29 23:59:00 Aeolus Instrument Telescope Refocusing (caused biases of 5 m/s in a similar exercise in July 2019) 2019-09-03 07:50:00 2019-09-03 14:40:00 Star tracker B measurements after reconfiguration introduce additional bias, recovery of Star tracker A in the afternoon. 2019-08-01 ~04:00:00 2019-08-01 ~07:40:00 Hot pixel on Rayleigh range-bin 20 caused a large bias for this period, before the next DUDE measurement was applied. e.g. it started here: https://aeolus-ds.eo.esa.int/oads/meta/L1B_L2_Products/browse/AE_OPER_ALD_U_N_1B_20190801T025335027_006383995_005443_0002.TGZ_BID.PNG 2019-07-23 00:30:00 2019-07-23 06:00:00 TxA sensitivity test data in WVM 2019-07-15 04:00:00 2019-07-16 01:00:00 Laser Cold plate temperature sensitivity test 2019-07-08 17:00:00 2019-07-08 23:45:00 Laser Cold plate temperature sensitivity test 2019-07-08 04:00:00 2019-07-08 10:45:00 Laser Cold plate temperature sensitivity test 2019-06-26 14:00:00 2019-08-01 13:39:11 Experimental FM-B data at initially intermediate Laser set points for internal assessment. No FM-B response calibration applied until 2019-08-01 orbit 5450 leading to high biases before this date. Information about plans for reprocessing of the July dataset will follow. 2019-02-26 12:50:00 2019-02-27 16:37:00 Laser Cold plate temperature sensitivity test 2019-02-18 14:27:00 2019-02-20 09:20:00 Laser Cold plate temperature sensitivity test 2019-01-21 00:00:00 2019-01-21 23:59:59 False setting of Instrument Function ID to WVM after orbit correction manoeuver. 2018-12-13 02:00:00 2018-12-13 16:50:00 Laser Cold plate temperature sensitivity test - feedback from MR is an additional bias of 1m/s 2018-11-09 09:25:00 2018-11-09 15:25:00 Reject data with known problems with star-tracker (very biased winds) - feedback from MR, LI root cause of SOR-80 missing the IFID change to OWV. 2018-09-25 03:00:00 2018-09-26 14:51:00 Reject data with known problems with star-tracker (very biased winds) - feedback from MR, LI root cause of AST reconfiguration is an anomaly. 2018-09-07 00:00:00 It is recommended to consider only data after 07 September 2018 for analysis. Data before is possibly affected by instrument switch on and checkout activities. 1980-01-01 00:00:00 1980-12-31 23:59:59 Reject data with known problems with GPSsd. =======================================