Время съемки Landsat

[Natalia Novoselova]

Подскажите, пожалуйста, если в метаданных снимка

https://landsatonaws.com/L8/220/076/LC0 ... 0501_01_RT

указано, DATE_ACQUIRED = 2018-05-01, SCENE_CENTER_TIME = "13:09:42.0926400Z"

Какое время имеется в виду? 13:09:42 - это GMT (Greenwich Mean Time) или это местное время?

[ericsson]

Местное время где из двухсоткилометровой полосы съемки?
https://en.wikipedia.org/wiki/List_of_m ... time_zones

[Natalia Novoselova]

Нашла ответ:
https://landsat.usgs.gov/how-can-i-find ... time-image

Landsat descending (daytime) acquisitions run from north to south, and crosses the equator between 10:00 am and 10:25 am local time on each pass to provide maximum illumination.

The exact acquisition start and stop times for each scene are listed in the visible metadata on EarthExplorer, GloVis or the LandsatLook Viewer. Landsat data acquisition times are expressed in Greenwich Mean Time (GMT) standard.

[alexandr cherepanov]

13:09:42.0926400Z

Z

Scene center time of the date the image was acquired. HH = Hour (00-23), MI = Minute, SS.SSSSSSS = Fractional seconds, Z = constant (indicates “Zulu” time (same as GMT)).
LSDS-809-Landsat8-Level1DFCB.pdf