Skylight Knowledge Base

Where Can I Find Detection Collection Schedules?

Owned by Karen Farley
Last updated: May 28, 2024 by Namrata Kolla
2 min read

The data Skylight uses for vessel detections have various collection schedules.

 

Night Lights (VIIRS)

Collected globally multiple times times per night, generally between 01:00 and 04:00.

 

Satellite Radar from SENTINEL-1

SENTINEL-1 satellite radar revisit rate varies from 6-12 days.

The European Space Agency provides KML files with detailed information about SENTINEL-1 acquisitions. To preview collection frames/acquisition segments select the most recent collection frame plan.

  1. Click here to download the most recent collection frame plan from Sentinel-1A (will be at the top of the list)

 

  1. Open the downloaded KML file in Google Earth

  2. Use the date slider to look at 3-7 days at a time.

  3. Click the red rectangle to see collection date and time

  4. Continue moving the start and end of the slider to see more collection frames for the coming days/weeks.

 

Optical Imagery from SENTINEL-2

SENTINEL-2 image areas every 5-days. To see precisely when collections will be captured for your area, please see Acquisition Plans: https://sentinels.copernicus.eu/web/sentinel/copernicus/sentinel-2/acquisition-plans

  1. Click here to download the most recent collection frame plan from Sentinel-2A and 2B. (Files will be at the top of the list)

  2. Open the downloaded KML file(s) in Google Earth

  3. Use the date slider to look at 3-7 days at a time

  4. Click the colored rectangle to see collection date and time

  5. Continue moving the start and end of the slider to see more collection frames for the coming days/weeks

Satellite Radar, Optical Imagery and Radio Frequency data from commercial sources:

Commercial vessel detections are captured upon request. Requesting additional vessel detections.

 

 

 

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