A rough draft key to the various letters is included on
a page on the PRRR website and the current draft
(which is evolving fairly rapidly) is pasted below.
A: Frame number
B: URL for relevant frame
C: Time Code (minutes)
D: Time Code (seconds)
E: Time Code (frames)
F: Date : States “26Apr2013” throughout video, i.e. 26 April 2013
G: Time (hours). The time display is in format HH:MM:SS. Increases from 01:22:07 to 01:26:01 (i.e. 3 minutes 54 seconds) during the video, which has a
duration of 3 minutes 54 seconds – prima facie indicating that the video is continuous footage.
H: Time (minutes)
I: Time (seconds)
J: Time Zone indication. States “UTC+1.0” throughout video. Prima facie this indicates that [insert].
K: States “Ground track” throughout the video. This indicates [insert].
L: States “AUTO” throughout the video. This indicates [insert]
M: States “VIC” throughout the video. This indicates [insert]
N: States “COR-A” throughout the video. This indicates [insert]
O: States “IR” (Infra-Red) throughout the video. This indicates the mode used (i.e. infra-red as opposed to electro-optical).
P: Indicates zoom. The camera consists of three different cameras in one Electro optical Wide 10-200mm zoom, Electro Optical Narrow at 955mm and The
Infra-Red camera with zooms at 27, 135, 675, and 2024mm. This number increases and decreases a few times during the video (with values of 135, 675,
2024) – i.e. the Infra-Red camera zoom values.
Q: States “AUTO” throughout the video. This indicates [insert].
R: States a rapidly changing number, with values between approximately [3,500] and [15,500]. The number indicates the distance from the aircraft to
the target, in meters. The target is the object detected by the relevant sensor at the centre of the cross-hairs, which is usually the ground rather
than any object in the air.
S: States “DFLT” throughout the video. This indicates [insert].
T: States “AUTO” throughout the video. This indicates [insert].
U: This compass shows [insert - ?the direction of true north relative to the crosshairs?]. This compass begins by pointing directly to the right (a
position that indicates [insert]) and rotates clockwise to end just to the right of straight up (a position that indicates [insert]). The gradual
clockwise rotation during the course of the video indicates [insert].
V: This readout shows values between approximately [+2.5] to [-0.5]. The number is [insert - ?the elevation angle relative to the aircraft,
meaning…?].
W: Cross-hairs, indicating the centre of the camera’s view.
Z: States “LI: Disarm” thoughout the video. This indicates [insert - ?Laser Illuminator disarmed/off?].
Y: States “LI: Off” thoughout the video. This indicates [insert - ?Laser Illuminator disarmed/off?].
Z: This readout shows values between approximately [19] to [29]. The number indicates the bearing of the camera in relation to the front of the
airplane. The values displayed on the screen are missing a "zero", i.e. 26 is actually 260 degrees. The heading of the aircraft added to this value
will give you the azimuth. If the value comes up greater than 360 degrees (as it often does), one has to subtract 360 degrees.