P-3 Orion - WFF 10/17/18

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Flight Number: 
ORACLES Science Flight #10
Payload Configuration: 
Nav Data Collected: 
Archive Data: 
20181017 (120 binary files; 24 archive (plain-text) files; 39 image files)
Total Flight Time: 
8.5 hours
Flight Segments: 
Start:10/17/18 07:45 Z Finish:10/17/18 16:15 Z
Flight Time:8.5 hours
Log Number:19P018PI:Jens Redemann
Funding Source:Hal Maring - NASA - SMD - ESD Radiation Science Program
Purpose of Flight:Science
Miles Flown:2000 miles
Flight Hour Summary: 
Flight Hours Approved in SOFRS188.5
Flight Hours Previously Approved 144
Total Used44.5110
Total Remaining 34
19P018 Flight Reports
Date Flt # Purpose of Flight Duration Running Total Hours Remaining Miles Flown
10/02/18ORACLES Science Flight #3Science8.58.5135.51940
10/03/18ORACLES Science Flight #4Science8.5171271970
10/05/18ORACLES Science Flight #5Science9261182000
10/07/18ORACLES Science Flight #6Science8.434.4109.62000
10/10/18ORACLES Science Flight #7Science8.342.7101.31970
10/12/18ORACLES Science Flight #8Science5.34896800
10/15/18ORACLES Science Flight #9Science7.855.888.21700
10/17/18ORACLES Science Flight #10Science8.564.379.72000
10/19/18ORACLES Science Flight #11Science872.371.71800
10/21/18ORACLES Science Flight #12Science8.280.563.51800
10/23/18ORACLES Science Flight #13Science8.188.655.41800
10/25/18ORACLES Transit #1Transit7.896.447.62009
10/26/18ORACLES Transit #2Transit7103.440.62100
10/27/18ORACLES Transit #3Transit5.8109.234.81692
10/27/18ORACLES Transit #4Transit0.81103472
18P004 Flight Reports
Date Flt # Purpose of Flight Duration Running Total Hours Remaining Miles Flown
09/17/18ORACLES ATFCheck1.31.3187.20
09/19/18ORACLES PTFCheck3.75183.50
09/21/18ORACLES Transit #1Transit6.311.3177.21716
09/22/18ORACLES Transit #2Transit8.219.51692131
09/24/18ORACLES Transit #3/Science FlightTransit9.328.8159.72500
09/27/18ORACLES Science Flight #1Science836.8151.71875
09/30/18ORACLES Science Flight #2Science7.744.51442400

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.

Related Science Report: 

ORACLES - P-3 Orion - WFF 10/17/18 Science Report

Mission Summary: 

This was a Target of Opportunity flight aimed at sampling younger aerosol off the coast of Angola. The first priority was intensive in-situ aerosol sampling; if possible, the hope was to also get a radiation wall / square spiral out of it for SSFR/4STAR retrieval of spectral absorption and single scatter albedo. The flight plan, which we largely followed, was to transit south on 7E to 7S; then go east-bound to 10.5E. There, do the radiation wall along a north-south line ~7.0-7.6E. Then transit from 7S, 10.5E west to 7S, 5E and transit back to STM on 5E, with some in-situ sampling along the way if time/fuel permits. 
We encountered significant mid-level clouds on the south- and east- bound transit legs to the work area, requiring us to adjust alitude frequently to keep below the mid-level clouds (thereby allowing for HSRL retrievals). When we arrived at the work area there were still mid-level clouds, so we changed the usual order of the radiation wall and instead stepped down from high altitude, doing in-situ aerosol legs on the way down; then did the below-cloud, in-cloud and above-cloud legs before doing a square spiral back up to altitude. Unfortunately mid-level clouds interfered with the square spiral SSFR/4STAR measurements. We were able to do some more in-situ sampling on the leg back to STM on 5E.
This flight was most notable for the extremely high concentrations of aerosol on the 7-7.6S, 10.5E line at ~5-7,000' altitude. This was the most concentrated aerosol seen yet in ORACLES. In addition, based on preliminary in-flight observations, it was younger than other aerosol sampled during ORACLES.