Data: CLASIC 2007 Flight #1922

2007-06-19 (Flight #1922)

Aircraft Flight Summary

Date: 2007-06-19
Flight Time: 13:01 - 15:55
Data Time: 12:52 - 15:53
Aircraft Type: Jetstream 31 (J-31)
Flight Scientist: Charles Gatebe
Flight Number: 1922
Mission Location: SGP Site, Oklahoma, USA
Lat/Lon Coverage:

Flight Track Map

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Satellite Image from MODIS-Aqua/Terra

MODIS-Aqua/Terra images for flight number 1922

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Satellite Images from GOES-12

GOES-12 satellite loop for flight number 1922

1132 - 1632 UTC

CAR - (QuickLook)
Imagery from CAR Instrument

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Flight Direction	Flight Direction

Flight Mission Details

Overview:
This was the 4th flight out of Ponca City. Preflight goals focused on measuring BRDF over the Southern Great Plain Central Facility (36.60°N, 97.48°W) -- CF and Little Washita (35.04°N, 97.91°W) -- LW under clear sky conditions.

J-31 Crew - David Thrasher (Pilot 1) & Scott Kaiser (Pilot 2).

Cabin Crew - Charles Gatebe (Flight scientist; GEST/GSFC), Robert Billings (UC Santa Cruz/NASA Ames), Miguel Roman (Grad. Student, Boston Univ.) and Michael King (NASA GSFC).

Flight Path, Timing, and Measurements

Time (UTC).
12:39 -- Engines on.
12:41 -- POS, Nose controller, and CAR instrument started normally.
12:50 -- Robert “Bob” Billings leaves the plane for an “emergency call.”
13:01 -- take off.
13:03 -- climbed to 3800’ msl.
13:06 -- reported Cu. Humilis
13:09 -- over CF, but too cloudy for BRDF measurements. Helicopter reported at lower altitude.
13:15 -- en route to LW.
13:24 -- reported Alto. Cu.
13:25 -- reported Canadian river.
13:34 -- in the vicinity of LW.
13:38 -- 2 minutes to LW. Started descent to 600 ft agl.
13:43 -- orbited the LW at 600’ agl for BRDF measurements. No clouds. At the site, buildings, water ponds, and roads reported.
13:58 -- end of BRDF circles.
13:59 -- climbed to 2000’ agl.
14:01 -- small Cu started to develop over the LW.
14:04 -- orbited LW at 2000’ agl. More Cu clouds developed over the site.
14:21 -- end of BRDF circles. Headed back to CF.
14:33 -- en route to CF. Cloud deck above.
14:35 -- established contact with Helicopter; was on its way out of the area. Cloud-free conditions reported over the site.
14:40 -- en route to CF; reported fair weather cumulus.
14:45 -- in the vicinity of CF. No clouds in the area.
14:47 -- orbited the CF at 600’ agl for BRDF measurements.
15:01 -- end of BRDF circles. Isolated cloud reported towards the horizon.
15:04 -- orbited CF at 2000’ agl for BRDF measurements.
15:19 -- adjusted the BRDF circles due to drifting.
15:26 -- end of BRDF circles.
15:33 -- orbited CF at 6000’ agl for BRDF measurements.
15:49 -- end of BRDF circles. Headed back to the base.
15:52 -- CAR shutdown.
15:55 -- touchdown.
16:03 -- Engine off.

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