From: | BGTL | To: | BGTL | ||
---|---|---|---|---|---|
Start: | 04/22/19 12:00 Z | Finish: | 04/22/19 18:37 Z | ||
Flight Time: | 6.6 hours | ||||
Log Number: | 19P017 | PI: | Joseph MacGregor | ||
Funding Source: | Bruce Tagg - NASA - SMD - ESD Airborne Science Program | ||||
Purpose of Flight: | Science | ||||
Miles Flown: | 1867 miles |
19P017 | |
---|---|
Flight Hours Approved in SOFRS | 250 |
Total Used | 216.3 |
Total Remaining | 33.7 |
19P017 Flight Reports | ||||||
---|---|---|---|---|---|---|
Date | Flt # | Purpose of Flight | Duration | Running Total | Hours Remaining | Miles Flown |
03/26/19 | #2053: 2019 OIB ATF | Check | 0.9 | 0.9 | 249.1 | 0 |
03/27/19 | #2059: 2019 OIB PTF-Laser | Check | 2.3 | 3.2 | 246.8 | 0 |
03/28/19 | #2061: 2019 OIB PTF-Radar | Check | 3.2 | 6.4 | 243.6 | 0 |
04/01/19 | #2068: 2019 OIB WFF-BGTL Transit Flight | Transit | 6.9 | 13.3 | 236.7 | 2458 |
04/03/19 | #2070: 2019 OIB Science Flight #1 | Science | 7.6 | 20.9 | 229.1 | 1938 |
04/05/19 | #2072: 2019 OIB Science Flight #2 | Science | 7.7 | 28.6 | 221.4 | 1910 |
04/06/19 | #2073: 2019 OIB Science Flight #3 | Science | 7.2 | 35.8 | 214.2 | 2000 |
04/08/19 | #2075: 2019 OIB Science Flight #4 | Science | 6.9 | 42.7 | 207.3 | 1780 |
04/09/19 | #2076: 2019 OIB Science Flight #5 | Science | 7.8 | 50.5 | 199.5 | 2045 |
04/10/19 | #2081: 2019 OIB Science Flight #6 | Science | 10.1 | 60.6 | 189.4 | 2702 |
04/11/19 | #2082: BGSF-BGTL Transit | Transit | 2.2 | 62.8 | 187.2 | 696 |
04/12/19 | #2083: 2019 OIB Science Flight #7 | Science | 7.2 | 70 | 180 | 2109 |
04/15/19 | #2086: 2019 OIB Science Flight #8 | Science | 4.8 | 74.8 | 175.2 | 1243 |
04/16/19 | #2087: 2019 OIB Science Flight #9 | Science | 7.6 | 82.4 | 167.6 | 2036 |
04/17/19 | #2088: 2019 OIB Science Flight #10 | Science | 7.7 | 90.1 | 159.9 | 1937 |
04/18/19 | #2090: 2019 OIB Science Flight #11 | Science | 7.8 | 97.9 | 152.1 | 2008 |
04/19/19 | #2091: 2019 OIB Science Flight #12 | Science | 7.6 | 105.5 | 144.5 | 2104 |
04/20/19 | #2092: 2019 OIB Science Flight #13 | Science | 6.9 | 112.4 | 137.6 | 0 |
04/22/19 | #2094: 2019 OIB Science Flight #14 | Science | 6.6 | 119 | 131 | 1867 |
04/23/19 | #2099: 2019 OIB Science Flight #15 | Science | 7.7 | 126.7 | 123.3 | 1979 |
04/25/19 | #2102: 2019 OIB BGTL-KBGR Transit Flight | Transit | 6.2 | 132.9 | 117.1 | 0 |
04/26/19 | KBGR to BGSF Transit | Transit | 5.7 | 138.6 | 111.4 | 0 |
05/05/19 | 2019 OIB Science Flight #16 | Science | 7.8 | 146.4 | 103.6 | 0 |
05/06/19 | 2019 OIB Science Flight #17 | Science | 8.4 | 154.8 | 95.2 | 0 |
05/07/19 | 2019 OIB Science Flight #18 | Science | 8.5 | 163.3 | 86.7 | 0 |
05/08/19 | 2019 OIB Science Flight #19 | Science | 8 | 171.3 | 78.7 | 0 |
05/12/19 | 2019 OIB Science Flight #20 | Science | 9 | 180.3 | 69.7 | 0 |
05/13/19 | 2019 OIB Science Flight #21 | Science | 7 | 187.3 | 62.7 | 0 |
05/14/19 | 2019 OIB Science Flight #22 | Science | 7.9 | 195.2 | 54.8 | 0 |
05/15/19 | 2019 OIB Science Flight #23 | Science | 8.3 | 203.5 | 46.5 | 0 |
05/16/19 | 2019 OIB Science Flight #24 | Science | 6.3 | 209.8 | 40.2 | 0 |
05/17/19 | 2019 OIB Transit | Transit | 6.2 | 216 | 34 | 0 |
05/17/19 | 2019 OIB Transit | Transit | 0.3 | 216.3 | 33.7 | 0 |
Flight Reports began being entered into this system as of 2012 flights. If there were flights flown under an earlier log number the flight reports are not available online.
Mission: ICESat-2 Arctic Ocean #4
Priority: High
This new flight for 2019 flies out-and-back along a single ICESat-2 ground track, selected and timed so that our aircraft and the spacecraft fly the track as closely as possible in time, and also with the track drift-corrected according to winds measured from the aircraft. The particulars of the technique we will use to fly the track will depend on knowledge of ICESat-2’s pointing accuracy just prior to the time of this flight. Options include out-and-back along the same or parallel and offset lines, varying the altitude of one or both lines, or even a four-segment line. The general idea is to obtain a composite swath wide enough to capture any likely pointing offset of the spacecraft. See Appendix D for more details on the design of these flights.
A delayed start today with high winds that temporarily induced Bravo conditions (buddy system). However, a promising forecast for this abbreviated long-line mission led us to takeoff once the brief winds lifted. We took off just in time, as a polar bear was sighted on-base shortly after we took off and base personnel had to shelter in place for an hour or so. After an uneventful transit we again arrived on-station for a shortened mission at 3,500 ft AGL, having missed ascending ICESat-2 RGT 0371, which crossed the start of our line at (13:28 UTC), whereas we got there at 14:06 UTC (38 minutes late). Winds were again mostly parallel to the line, but we drift-corrected regardless. We broke out of overcast conditions just before the start of the line, which was reassuring. We lost the surface about a quarter of the way through the mission for less than 15 minutes, but then regained it for the remainder of the mission. We broke off prior to the last two waypoints (J and K) to ensure the opportunity to collect a ramp pass. Headwall SWIR experienced multiple issues yet again and never really operated correctly today, while NVIR worked fine. ATM estimates 90% altimetry data collection. We conducted a ramp pass at 1,600 ft AGL.
Attached images/files:
Mission: North Glaciers 01
Priority: Medium
This mission is designed to resurvey historical ATM longitudinal surveys of several glaciers in northern Greenland, including Steensby, Ryder, and Hagen Glaciers. The maneuver connecting lower Steensby and Ryder glaciers has been modified to collect straight-line data over the fjords for better gravity data. It also re-occupies ATM lines on the Flade Ice Cap, near Station Nord, and returns to Thule along the British North Greenland Expedition traverse line, which was also flown by ATM in 2002. We also add two new glacier centerlines for small glaciers draining the Flade Isblink.
A clear forecast for north Greenland and poor conditions elsewhere led us to select this mission, OIB’s last onboard the P-3 based out of Thule AB. We lost the surface briefly before reaching Camp Century and conditions cleared again. We went down Steensby then up Ryder before turning east again toward Hagen Bræ and its iceberg graveyard. We crossed over to Flade Isblink and encountered a very section of clouds that we bypassed, passing by Station Nord and chatting with them on the radio, then returning along the EGIG. We performed a ramp pass at 1,200 ft AGL. Headwall SWIR was unable to be operated today, but otherwise all instruments worked well. ATM estimates 95% altimetry data recovery.
Attached images: