NOAA G-IV N49RF

Hurricane Ivan Day Mission 4

Surveillance Flight

Flight ID: N040911

Sensor or System	Number or Name

INE (for wind derivation)	VEW_PITR VNS_PITR

Attack Angle	AKRD2

Slip Angle	SSRD2

Accelerometer	ACINS_PITR

Temperature Probe	AT3

Dew Point Probe	DPRC

Altitude (for vertical wind derivation)	PALT

Static Pressure	PS2C

Dynamic Pressure	QC2C

True Air Speed	TAS2

Constants File	49cal041

Project Directory	406

Notes:

There were no time/data glitches during this flight.

At 0129Z, upon initial descent, DPL became inoperative. Therefore, DPR and DPRC will be used in place of DPX and DPXC.

At 0119Z, DBP1 and DBP2 along with SSRD1 and SSRD2 spiked upon initial descent.

Two spikes in DPRC and DPLC occurred at 2301Z and 2316Z. This occurred in a precipitation event where the heating elements in the instrument likely overcompensated. These values are greater than ambient temperature resulting in relative humidity values greater than 100%.

Otherwise, all instruments performed optimally during this mission.

Flight Director:	Martin Mayeaux (813) 828-3310 x 3086

2004-09-28T09:01:40