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ANNEX B

INFORMATION ON SENSORS

SECTION I. TECHNICAL INFORMATION

1. Pursuant to Article IV, paragraph 10 each State Party shall inform all other States Parties of the applicable technical information listed in this Section on each sensor installed on the observation aircraft designated by that State Party pursuant to Article V of the Treaty.

2. The following technical information shall be provided for optical panoramic and framing cameras:

    (A) type and model;

    (B) field of view along and across the flight path, or scan angles, in degrees;

    (C) frame size, in millimetres by millimetres;

    (D) exposure times, in seconds;

    (E) types and colors of optical filters used and their filter factor;

    (F) for each lens:

      (1) name;

      (2) focal length, in millimetres;

      (3) maximum relative aperture of the lens;

      (4) resolving power at a contrast ratio of 1000 to 1 or the equivalent modulation of 1.0, at the maximum relative aperture, in lines per millimetre;

    (G) minimum and maximum photographic time intervals, in seconds, or cycle rates, in frames per second, if applicable;

    (H) maximum velocity over height ratio, if applicable;

    (I) for optical framing cameras, the maximum angle measured from the horizontal, or the minimum angle measured from the vertical, in degrees; and

    (J) maximum altitude for operation in metres, if applicable.

3. The following technical information shall be provided for video cameras:

    (A) type and model;

    (B) field of view, along and across the flight path, in degrees;

    (C) for the lens:

      (1) focal length, in millimetres;

      (2) maximum relative aperture;

      (3) resolving power at a contrast ratio of 1000 to 1 or the equivalent modulation of 1.0, at the maximum relative aperture, in lines per millimetre;

    (D) detector element size, in micrometres, or equivalent information on the tube;

    (E) number of detector elements;

    (F) system light sensitivity, in lux or watts per square centimetre; and

    (G) spectral bandwidth, in nanometres.

4. The following technical information shall be provided for infra-red line-scanning devices:

    (A) type and model;

    (B) field of view or scan angles, in degrees;

    (C) minimum instantaneous field of view, along and across the flight path, in milliradians;

    (D) spectral bandwidth, in micrometres;

    (E) minimum resolvable temperature difference, in degrees Celsius;

    (F) temperature of detector during operation, in degrees Celsius;

    (G) time required from switch-on for the system to start up and cool down to its normal operating temperature, in minutes;

    (H) maximum operating time, if applicable;

    (I) maximum velocity over height ratio; and

    (J) maximum altitude for operation in metres, if applicable.

5. The following technical information shall be provided for sideways-looking synthetic aperture radar:

    (A) type and model;

    (B) radar frequency bands, and specific operating frequency, in megahertz;

    (C) polarizations;

    (D) number of radar pulses, per metre or second;

    (E) near range angular limit of operation, in degrees from vertical;

    (F) swath width, in kilometres;

    (G) ground resolution in range and azimuth, in the slant plane, in metres;

    (H) maximum altitude for operation in metres, if applicable; and

    (I) transmitter output power, in watts.

6. The following technical information shall be provided for sensors that record data on photographic film:

    (A) the types of film that may be used with each sensor;

    (B) width of film, in millimetres;

    (C) film resolution at a contrast ratio of 1000 to 1 or the equivalent modulation of 1.0, in lines permillimetre; and

    (D) capacity of magazine for each type of film, in metres.

7. The following technical information shall be provided for sensors that record data on other recording media:

    (A) type and model of the data recording equipment;

    (B) type and format of data recording media;

    (C) bandwidth, in hertz, if applicable;

    (D) data recording rate, in megabits per second, if applicable;

    (E) capacity of recording media, in minutes or megabits; and

    (F) format for storage of data collected by sensors and data annotation.

SECTION II. ANNOTATION OF DATA

1. The following items of information shall be annotated on data collected by sensors during an observation period on the leader of each roll of the original film negative or at the beginning of each other recording medium in accordance with the provisions of Appendix 1 to this Annex:

    (A) observation flight reference number;

    (B) date of observation flight;

    (C) sensor description;

    (D) sensor configuration; and

    (E) focal length, if applicable.

2. The following items of information shall be recorded manually or electronically from the navigation and avionics systems of the observation aircraft and annotated on data collected by sensors during an observation period in a manner that does not obscure detail, in accordance with the provisions of Appendix 1 to this Annex:

    (A) for optical cameras:

      (1) at the start of the observation period and at any intermediate location during the observation period where there is a significant change of height above ground level, heading or groundspeed, and at intervals to be determined by the Open Skies Consultative Commission within the period of provisional application:

        (a) height above ground level;

        (b) location;

        (c) true heading; and

        (d) scan angle;

      (2) on every frame of photographic film:

        (a) frame number;

        (b) time; and

        (c) roll angle;

    (B) for video cameras and infra-red line-scanning devices, at the start of the observation period and at any intermediate location during the observation period where there is a significant change of height above ground level, heading or groundspeed, and at intervals to be determined by the Open Skies Consultative Commission within the period of provisional application:

      (1) date and time;

      (2) height above ground level;

      (3) location;

      (4) true heading; and

      (5) scan angle;

    (C) for sideways-looking synthetic aperture radar:

      (1) at the start of the observation period and at any intermediate location during the observation period where there is a significant change of height above ground level, heading or groundspeed, and at intervals to be determined by the Open Skies Consultative Commission within the period of provisional application:

        (a) date and time;

        (b) height above ground level;

        (c) location;

        (d) true heading;

        (e) look down angle to the nearest point of the swath width;

        (f) swath width; and

        (g) polarizations;

      (2) each time they are measured in order to ensure correct processing of the image:

        (a) groundspeed;

        (b) drift;

        (c) pitch angle; and

        (d) roll angle.

3. For copies of single frames or strips of imagery produced from the original film negative or other recording media, the items of information listed in paragraphs 1 and 2 of this Section shall be annotated on each positive point.

4. States Parties shall have the right to annotate data collected during an observation flight using either alphanumeric values, or codes to be agreed by the Open Skies Consultative Commission during the period of provisional application.

APPENDIX 1 TO ANNEX B

ANNOTATION OF DATA COLLECTED DURING AN OBSERVATION FLIGHT

1. The reference number of the observation flight shall be indicated by a single group of six alphanumeric characters in accordance with the following convention:

    (A) the letters "OS";

    (B) the last digit of the calendar year for which the individual active quota applies; and

    (C) a three-digit number to represent each individual observation flight comprising the active quota distributed during the annual review within the framework of the Open Skies Consultative Commission for a calendar year to a State Party over the territory of another State Party.

2. The sensor description shall be indicated by a single block of up to six alphanumeric characters comprising two groups in accordance with the following convention:

    (A) a group of up to four characters to represent the category of the sensor in accordance with the following convention:

      (1) "OP" - optical panoramic camera;

      (2) "OF" - optical framing camera;

      (3) "TV" - video camera;

      (4) "IRLS" - infra-red line-scanning device; or

      (5) "SAR" - sideways-looking synthetic aperture radar,

    (B) a group of two characters to represent the type of the recording medium in accordance with the following convention:

      (1) "BI" - black and white, iso-panchromatic;

      (2) "BM" - black and white, monochromatic;

      (3) "BP" - black and white, panchromatic;

      (4) "BR" - black and white, reversal;

      (5) "TA" - tape, analogue; or

      (6) "TD" - tape, digital.

3. The sensor configuration shall be indicated by a single block of up to nine alphanumeric characters comprising three groups in accordance with the following convention:

    (A) a group of four alphanumeric characters to represent the installation of the sensor on the observation aircraft either as:

      (1) an internal installation, which shall be denoted by the code "INT", followed by a number to indicate the relative location of the installation of the sensor on the observation aircraft in sequence from nose to tail of the observation aircraft; or

      (2) a podded installation, which shall be denoted by the code "POD", followed by one of the following three letters:

        (a) "L" - mounted under left wing;

        (b) "R" - mounted under right wing; or

        (c) "C" - mounted on the aircraft centre line;

    (B) a group of up to three alphanumeric characters to represent the type of installation in accordance with the following convention:

      (1) a vertical installation in which the sensor is not tilted more than five degrees from the vertical shall be denoted by the letter "V";

      (2) an oblique installation in which the sensor is tilted more than five degrees from the vertical shall be denoted by one of the following two letters, followed by the depression angle in degrees:

        (a) "L" - left pointing;

        (b) "R" - right pointing;

      (3) a fan installation of two or more sensors shall be denoted by the letter "F";

    (C) for a fan installation, a group of up to two numbers to indicate the number and position of the sensors as follows:

      (1) the first number to indicate the total number of sensors in that installation; and,

      (2) the second number to indicate the individual sensor position, in sequence from left to right relative to the direction of flight of the observation aircraft.

4. The focal length of a lens shall be provided in millimetres.

5. The date and time shall be provided to the nearest minute of Co-ordinated Universal Time.

6. The average height above ground level of the observation aircraft shall be denoted by a five-digit number, followed by a code to represent the units of measurement in either feet, by the letter "F", or metres, by the letter "M".

7. The latitude and longitude of the location of the observation aircraft shall be provided in degrees to the nearest one-hundredth of a degree, in the format "dd.dd(N or S) ddd.dd(E or W)", or in degrees and minutes to the nearest minute, in the format "dd mm(N or S) ddd mm(E or W)".

8. The true heading of the observation aircraft shall be provided in degrees to the nearest degree.

9. The roll angle of the observation aircraft shall be provided in degrees followed by a code to indicate whether the roll is to the left, by the letter "L", or to the right, by the letter "R".

10. The pitch angle of the observation aircraft shall be provided in degrees followed by a code to indicate whether the pitch is up, by the letter "U", or down, by the letter "D", relative to the horizontal.

11. The drift angle of the observation aircraft shall be provided in degrees followed by a code to indicate whether the drift is to the left, by the letter "L", or to the right, by the letter "R", relative to the flight path of the observation aircraft.

12. The groundspeed of the observation aircraft shall be denoted by a three-digit number followed by a two-letter code to indicate the units of measurement in either nautical miles, by the letters "NM", or kilometres, by the letters "KM", per hour.

13. The nearest point of the swath width shall be provided in kilometres.

14. The look down angle shall be provided in degrees measured from the vertical.

15. The swath width shall be provided in kilometres.

16. For photographic film, each magazine used during an observation flight from the same sensor shall be numbered in sequence starting from one. Each frame on the original film negative exposed by each sensor shall be individually numbered in sequence, from the first frame to the last frame of that magazine of that sensor. In each case when the film is numbered using one or two numbers per frame, a single frame shall be defined without ambiguity by specifying either the number closest to the centre of the frame, or, in the event that the numbers are equidistant from the centre, the smaller whole number.