Recent content by mint

oops sorry my bad. it's 800km, i typed the numbers wrongly. the correct orbital height is 800km. i got confused with another question.

i still get 1.2m after subsituting all the values into w=Hb/f, where H=800km, b=15 micro m, f=10m, after converting everything into si units. for the orbital period, after substituting radius of earth=6378km, i got 6048s. so how does 20s affect the calculation?

oh so the swath width should be the longer stretch, while the length should be just 1.2m? how do 20s matter here? and do the number of spectral bands affect the calculations, question states that there is 4.

an explanation on push broom scanning system is provided in this website: http://www.crisp.nus.edu.sg/~research/tutorial/image.htm i presume one square is equivalent to one pixel width. thus, the width of the area will be 1.2m(assuming it's the correct ans first, i haven't found out the...

hi, i still got 6044s. i substitue G=6.672 x 10^24 and M=5.976 x 10^24 and R=radius of Earth and orbital ht=7175 x 10^3 m

sorry my bad, yup i thought i calculated the orbital period instead of the height in part i, i got confused. for d, the qn states that 'the satellite carries a nadir-viewing push-broom scanning imaging instrument with 4 spectral bands. for each spectral band, the detector array consists of...

for c, i make use of equation w=Hb/f. w is the ground pixel width, H is the orbital height, b is the detector width, f is the focal length. since b is given as 15μm, f is given as 10m, H is what i calculated, i presume if my ans for w is wrong, then it should be due to errors from my H? for...

(i) i use this eq, T^2=(4pi^2/GM) R^3. where T is the orbital period, R is the radius of Earth and orbital height. G is the gravitational constant, M is the mass of the earth. (ii) Earth rotates 0.25 deg every min, from the fact that the Earth rotates 360deg in 24 hours. since orbital...

Homework Statement a satellite is orbiting the Earth in a near-polar orbit. it's orbital height is 500km. the satellite carries a nadir-viewing push-broom scanning imaging instrument with 4 spectral bands. for each spectral band, the detector array consists of 1024 detector elements. the width...