Data: CLASIC 2007 Flight #1921

2007-06-18 (Flight #1921)

Aircraft Flight Summary

Date: 2007-06-18
Flight Time: 13:16 - 15:43
Data Time: 13:10 - 15:36
Aircraft Type: Jetstream 31 (J-31)
Flight Scientist: Charles Gatebe
Flight Number: 1921
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 1921

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Satellite Images from GOES-12

GOES-12 satellite loop for flight number 1921

1302 - 1632 UTC

CAR - (QuickLook)
Imagery from CAR Instrument

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Flight Direction	Flight Direction

Flight Mission Details

Overview:
This was the 3rd 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 completely overcast 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), and Miguel Roman (Grad. Student, Boston Univ.)

Flight Path, Timing, and Measurements

Time (UTC).
13:01 -- Engines on.
13:02 -- POS, Nose controller, and CAR instrument started normally.
13:16 -- takeoff.
13:23 -- three broken clouds layers observed while on transit to CF. Layer 1 top at 3500’ agl.
13:28 -- orbited the CF at 2800’ agl for BRDF measurements. In and out of broken Cu clouds. Cloud water seen on the bubble window. Aircraft a little bumpy while inside clouds.
13:45 -- end of BRDF circles.
13:56 -- orbited CF at const. altitude (3800’ msl) while trying to establish contact with Vance Air Traffic Control.
14:11 -- transiting to LW and flew through clouds -- 3000’ msl.
14: 14 -- out of clouds.
14:33 -- inside cloud; descending down to LW.
14:35 -- still inside cloud; a little bumpier. Cloud foggy, but no water forming on the bubble window.
14:39 -- orbiting the LW at 2000’ agl for BRDF measurements. Flying through clouds; can’t go below clouds base because of safety concerns.
14:58 -- end of BRDF circles. Climbed to 4000’ agl and return to Ponca City.
15:09 -- inside a deep cloud; relatively dark.
15:12 -- going through pockets of rain, sometime heavy. Mirror heater for CAR turned on throughout.
15:23 -- between clouds layers ; Cu below and Ci above.
15:37 -- CAR shutdown.
15:43 -- touchdown.
15:49 -- Engine off.

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