All-Zero Sentinel 2 L1C Data?

I’m aware of multiple questions about missing sentinel 2 data, but I seem to have a different problem: certain combinations of lat/lon box and time range return all-zero for every band.

For example: the code

brect = [-123.0061, 42.60019, -122.9963, 42.61401]
start = '2019-08-08'
end = '2019-08-09'

bbox = BBox(bbox=brect, crs=CRS.WGS84)
bbox_size = bbox_to_dimensions(bbox, resolution=resolution)

rgb = get_rgb(start, end, bbox, bbox_size, config)
rgb = minmax_scale(rgb.ravel(), feature_range=(0,255)).reshape(rgb.shape)

cv2_imshow(rgb)

gives a blank image, and np.unique(rgb) gives only one value: 0:
resultImg

For reference, the function I used to get RGB works just fine for most requests:

def get_rgb(current_date_str, next_date_str, betsiboka_bbox, betsiboka_size, config):
  evalscript_true_color = """
      //VERSION=3

      function setup() {
          return {
              input: [{
                  bands: ["B02", "B03", "B04"]
              }],
              output: {
                  bands: 3
              }
          };
      }

      function evaluatePixel(sample) {
          return [sample.B02, sample.B03, sample.B04];
      }
  """

  request_true_color = SentinelHubRequest(
      evalscript=evalscript_true_color,
      input_data=[
          SentinelHubRequest.input_data(
              data_source=DataSource.SENTINEL2_L1C,
              time_interval=(current_date_str, next_date_str),
          )
      ],
      responses=[
          SentinelHubRequest.output_response('default', MimeType.PNG)
      ],
      bbox=betsiboka_bbox,
      size=betsiboka_size,
      config=config
  )

  image = request_true_color.get_data()[0]

  return image

And I observe something similar for elevation, cloud mask, the other Sentinel 2 L1C Bands, etc. Am I missing some fundamental reason for this? Or am I doing something incorrectly?

Hi @jmlynch3 ,

I had a quick check with our Catalog API that you can also conveniently access via our Requests Builder and there are no Sentinel-2 data available for the time range you specified in your request.
The closest dates with Sentinel-2 data are 6th August 2019 and 11th August 2019.

Hope that helps,
Max

1 Like

Thank you! I was simply mistaken about the update frequency / coverage of the data.