Google earth engine: How to get yearly DN value by satellites from DMSP-OLS nighttime satellite data

I would like to get the panel data of the nighttime light in Japan and check the correlation between other economic statistics. In order to do that, I have to get yearly digital number value from each satellite, F10, F12, F14, F15, F16, and F18, and intercalibrate it as Elvidge et al(2009) did.

Here is the code in which I could get the DN value in 1994, the year which F10 and F12 exist at the same time. but I can’t identify which satellite are the data from.

So, the question is below:

How can I check which satellite are the data from?

If it is impossible to make sure of it, How to get DN value from a certain satellite?

var dataset = ee.ImageCollection('NOAA/DMSP-OLS/NIGHTTIME_LIGHTS').select('stable_lights');
var v1994 = dataset.filter(ee.Filter.date('1994-01-01', '1994-12-31')).median();
var nighttimeLightsVis = {min: 0.0, max: 60.0};
Map.addLayer(v1994.clip(jpn), nighttimeLightsVis, "Nighttime_1994");
var reducer1 = ee.Reducer.mean();
var reducers = reducer1.combine({reducer2: ee.Reducer.median(), sharedInputs: true})
function ntl(image) {var pas = image.reduceRegions({  collection: jpn,  reducer: reducers,  scale: 500,});return pas}
function export_table (table, description) {var em = Export.table.toDrive({ collection: ee.FeatureCollection(table), description: description, folder:'GIS', selectors:(["CITY_ENG","JCODE","mean"]),});return em}
var nl_v1994 = export_table(ntl(v1994), 'NL_v1994Ejpn');

*I got the border data, "jpn" in this code, from this website

*I tried to use the GeoTIFF image which downloaded from this website, but I got an error: Image.reduceRegions: Unable to find a crs.

var dataset = ee.ImageCollection('NOAA/DMSP-OLS/NIGHTTIME_LIGHTS')
                .select('stable_lights');

print(dataset.first().get("system:index"))

print(dataset.filterMetadata("system:index", "contains", "F14"))