How to make Methane (CH4) Map by Sentinel-5 using Google Earth Engine || GEE ||Sentinel-5||CH4 ||GIS

var collection = ee.ImageCollection('COPERNICUS/S5P/OFFL/L3_CH4')
.select('CH4_column_volume_mixing_ratio_dry_air')
.filterDate('2019-01-01', '2019-02-15');
var band_viz = {
min: 1750,
max: 1900,
palette: ['black', 'blue', 'purple', 'cyan', 'green', 'yellow', 'red']
};
//Map.addLayer(collection.mean(), band_viz, 'S5P CH4');
//Map.addLayer(geometry, {color :'silver'}, 'PAK');
Map.addLayer(collection.mean(), band_viz, 'S5P CH4');
Map.setCenter(0.0, 0.0, 2);

[@user-fc6io5ps2p]

How such a kind explanation.
Sir i just wonder how to export methane, longitude and latitude at the same time using Google Earth Engine?(not images, it'sdatasets) I really want to know how to do it.

[@GISsolutions]

it’s very esay