A

• Path number
The path is defined as the satellite passes from the ascending node to the North pole, the South pole and then reaches the ascending node again, and the path number increases toward the west at the adjacent orbit interval. The recurrent period of GCOM-C is 34 days.


• Scene number
The scene is defined the unit of Level1 processing. In VNR-NP and IRS, a scene is the range of 1/24 of the orbit. After passing the ascending node, the scene with the earliest observation time is numbered 01, and the scene number is increased by 1 for each of the following scenes in sequence. When a scene is divided into multiple product, since those products are originally one scene, multiple product with the same scene number with different observation times are generated. In VNR-PL, a scene is defined as the range including the whole daytime observation region within one orbit. Therefore, the scene number is fixed to 00.

The path number determines the longitude direction, while the scene number determines the latitude direction. For more details, please refer to the following: You can use a tool to visualize path orbits.
For information on other projection methods, please refer to FAQ"Map projection (each product)", FAQ"about tile products". Additionally, for filtering around Japan, please refer to FAQ"How to find around Japan data.".

Last update: 2024/11/22