Advantages of satellite-platform Earth observation Select the comprehensive statement about what Earth observation from satellites provides to users and analysts.

Introduction / Context:
Satellite platforms revolutionised Earth observation by enabling consistent, repeatable, and wide-area measurements. Mission design—orbit type, revisit cycle, swath—determines coverage, temporal sampling, and illumination conditions for change detection and mapping.

Given Data / Assumptions:

• Polar sun-synchronous orbits yield near-constant local solar time passes.
• Geostationary orbits provide high-frequency sampling for weather.
• Revisit can range from minutes (GEO) to days/weeks (LEO constellations).

Concept / Approach:
Satellites provide synoptic views due to large swaths. Sun-synchronous LEO maintains similar illumination (constant solar zenith angle) for consistent reflectance comparison. Orbital mechanics set revisit intervals enabling monitoring of vegetation phenology, disasters, and urban change.

Step-by-Step Solution:

Verification / Alternative check:
Mission specs (e.g., Landsat ~16 days, Sentinel-2 ~5 days constellation, INSAT/GOES continuous) corroborate these points.

Why Other Options Are Wrong:

• Picking any single feature omits the broader capability; all are valid.
• None of these: Incorrect since satellites offer all listed advantages.

Common Pitfalls:
Assuming “constant illumination” implies identical bidirectional reflectance every pass; surface anisotropy and atmosphere still matter.

Final Answer:
All of these