NOAA G-IV N49RF

Hurricane Ivan Day Mission 6

Surveillance Flight

Flight ID: N040914

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	DPLC

Altitude (for vertical wind derivation)	PALT

Static Pressure	PS2C

Dynamic Pressure	QC2C

True Air Speed	TAS2

Constants File	49cal041

Project Directory	406

Notes:

There was one time/data glitches during this flight which occurred between 2047Z and 2104Z due to a data system crash.

From 2104Z, through the end of the flight, data from DBP1 becomes unrepresentative. This is likely due to ice clogging the sensor port.

From 0103Z-0110Z, DPL and DPR spike above ambient temperature values causing relative humidity values to exceed 100%. Following this event, DPL becomes inoperative through the remainder of the descent.

However, compared to rawindsonde data from Tampa Bay, DPR was 8 degrees cooler than what the rawindsonde reported around 0000Z. DPL was much more representative. Therefore, DPL and DPLC will be used for DPX and DPXC.

At 0111Z, a very large spike occurred in SSRD1. Therefore, data from SSRD2 will be used for SSLIP values.

Otherwise, all instruments performed optimally during this mission.

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

2004-09-28T09:01:40