QA band name for NO2 S5L2 Process API?

I am trying to request data using request builder. How do I get the QA band in S5L2_NO2 product? I have to put it on my Evalscript.

function setup() {
  return {
    input: ["NO2", "QA", "dataMask"],
    output: { bands:  1 , sampleType: "FLOAT32"}
function evaluatePixel(sample) {
    if (sample.dataMask == 1 && sample.QA >= 0.75) {
        return [sample.NO2]
    } else {
        return [-9999]

I get an error that QA band is not part of it. What is the correct name? And if there’s a document for that, please direct me.

Hi @cnpante ,

I see from your Evalscript that you want to filter your NO2 pixels with the help of the quality parameter.

You can always check available bands and dataset-specific parameters in the Data section of our official documentation. For Sentinel-5P there is no QA band available (see Sentinel-5P documentation).

The quality filtering of Sentinel-5P pixels is performed through the minQa filter parameter that is listed in the advanced options for Sentinel-5P in the Requests Builder.

You can adjust the slider to the desired quality threshold and enjoy the returned data :slight_smile:

Best, Max

1 Like

Ohhh. I see. Thank you @max.kampen!