Y

Y max cos(M)

Xmax = 199.6 m

Driven by resolution requirement at maximum slant range

* IRC = parameter tabulated on the Inside Rear Cover for Earth Satellites Parameters. tCalculatfcns are based on a circular orbft

* IRC = parameter tabulated on the Inside Rear Cover for Earth Satellites Parameters. tCalculatfcns are based on a circular orbft

TABLE 9-15. Calculation Design Parameters for a Passive Optical Sensor. (Continued)

Step

Calculation

FireSat

Comments

Step 3. Define Pixel Parameters and Data Rate (Continued)

Determine cross-track ground pixel resolution, X, at nadir

X = IFOV-h\A * I 1^180 degj

X=30m

Best cross-track resolution for this instrument

Determine along-track pixel resolution, V, at nadir

Y = IFOV-h\—£—} 1^180 degj

y=30m

Best along-track resolution for this Instrument

Determine no. of cross-track pixels, Zc

c IFOV

2^=4.7x104

Ground pixel size varies along the swath

Find no. of swaths recorded along-track In 1 sec, Za

Vg -1 sec * Y

Zg = 225.6

Number of successive swaths without gaps at nadir

Find no. of pixels recorded in 1 sec., Z

Z=ZcZa

Z= 1.06 x 107

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