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EMAS-IR: First Three Test flights (ER-2 809: 22, 28, 30 August 2012) 1.22 Aug: Roll-correction was not enabled for this flight. Some data collected. 2.28.

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Presentation on theme: "EMAS-IR: First Three Test flights (ER-2 809: 22, 28, 30 August 2012) 1.22 Aug: Roll-correction was not enabled for this flight. Some data collected. 2.28."— Presentation transcript:

1 eMAS-IR: First Three Test flights (ER-2 809: 22, 28, 30 August 2012) 1.22 Aug: Roll-correction was not enabled for this flight. Some data collected. 2.28 Aug: The Stirling cooler hangs during taxi flight, mission aborted after takeoff. Minimal data collected. 30 Aug: Stirling hangs but remotely re-set; system then operates continuously Demonstrated basic instrument functionality and ground support procedures Remote instrument control via new NASADT/EIP/Iridium system NPP VIIRS Under-flight Ground validation at Tahoe site (radiosondes, VSWIR & TIR radiometers, ASTER SST buoys Links to the quick-looks: http://mas.arc.nasa.gov/data/flt_html/12911.html http://mas.arc.nasa.gov/data/flt_html/12912.html http://mas.arc.nasa.gov/data/flt_html/12913.html

2 eMAS-IR: First Test flights (ER-2 809, 22, 28, 30 August 2012) Aug. 30 Flight Plan Pre-Flight and Ground Support Cart

3 Take Off

4 30 August 2012 Lake Tahoe (Stirling off) 26 32

5 30 August 2012 Lake Tahoe (Stirling off) 33 38

6 Stirling On/Off On (20:25UTC)Off (23:15UTC) Ch36 13.33um Lake Tahoe 8/30/2012

7 Stirling Noise (EABB Test) Zoom

8 Non Stirling Noise All Port 1 (most severe in Band 4) Port 2 (All) Lake Tahoe 8/30/2012 Stirling Off (23:15UTC)

9 NEdT (C) On Off Band 26 0.65 0.34 Band 27 0.40 0.33 Band 28 0.42 0.26 Band 29 0.26 0.12 Band 30 0.12 0.10 Band 31 0.17 0.09 Band 32 0.12 0.06 Band 33 0.07 0.08 Band 34 0.38 0.12 Band 35 0.38 0.16 Band 36 1.10 0.30 Band 37 2.07 0.48 Band 38 6.39 1.07 Noise Comparison (Stirling on/off) Ch Old MAS Gain Adjusted eMAS 12.04.6 21.44.7 32.75.4 41.616.9 52.34.4 62.64.8 72.65.6 84.08.7 98.911.7 103.720.6 113.720.2 123.720.4 137.142.3 146.945.6 156.941.1 166.940.2 177.041.4 187.142.5 197.042.2 206.842.1 213.623.0 226.941.5 236.744.2 246.742.9 256.843.5 Stirling Off SDEV (Counts)

10 Issues to Address: Vacuum integrity (replace valves, O-rings, pumping aparatus) New Helium Leak Detector to deliver ~9/24) Remaining external data ingest: Synchro roll signal (back-up to POS-AV) IRIG-B time code, RS-232, misc. temps and voltages) Scanhead thermal regime Minco Heater operational? excessive cooling from the air-scoop Cryo-cooler shut-down on taxi BB calibration BB#1 reporting cuts off at -30C, which was reached on 8/30 when set to ‘Ambient’) Aeroglaze paint reflectivity measured by JPL 60-Hz noise coupling investigation: Induce vibration externally Inspect power supply, cryo-controller, and grounding circuitry design High Frequency noise in Ports 1 &2 Spectral alignment needed in Ports 1 &2; Gain adjustments in various bands


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