1. The satellite orbit is fixed in the inertial space
2. During successive across-track imaging, the earth rotates beneath the sensor
3. The satellite images a skewed area
Which one of the following statements is/are correct?
A. 1, 2, 3
B. 1, 3
C. 2, 3
D. 1, 2
Related Mcqs:
- For interpolation of satellite data used for monitoring dynamic changes that occurs on the earth surface, the most suitable orbit for the satellite is______________?
A. Circular orbit
B. Sun-synchronous orbit
C. Near polar orbit
D. None of these - Which one of the following statements regarding remote sensing is correct ?
A. The interaction of the electromagnetic radiation with the target
B. The emission of electromagnetic radiation from the target
C. Both A. and B.
D. Neither A. nor B. - Which one of the following statements is correct regarding the GPS satellites ?
A. The nominal altitude is about 20,200 km
B. The inclination of axis satellite is 55°
C. The satellite transmits two L band signals (L1 with 1575.42 MHz and L2 with 1276.6 MHz)
D. All of these - Which one of the following geometric errors of satellite sensors is random ?
A. Scan skew
B. Panoramic distortion
C. Earth rotation
D. Altitude variation - Due to perturbation of the orbit, satellite orbit parameters are frequently updated on measurements carried out by its_______________________?
A. Six ground stations
B. Five ground stations
C. Four ground stations
D. Three ground stations - The normal altitude of GPS satellite is about________________?
A. 16,200 km
B. 20,200 km
C. 24,400 km
D. 36,100 km - Earth observations from a satellite platform provide____________?
A. Synoptic view of a large area
B. Constant solar zenith angles and similar illumination conditions
C. Repetitive observations of the same area with intervals of a few minutes to a few weeks
D. All of these - The GPS space segment consists of Navigation Satellite Timing and Ranging whose number is_______________?
A. 8
B. 12
C. 16
D. 24 - Due to scan geometry of a satellite sensor____________________?
A. The off-nadir resolution is degraded
B. The ground distance swept by the senor, IFOV is proportional to sec2 of scan measured from the nadir
C. The details towards the edge of the scan get compressed
D. All of these - The altitudinal distance of a geostationary satellite from the earth is about_________________?
A. 26,000 km
B. 30,000 km
C. 36,000 km
D. 44,000 km
