No clear way to determine legs and fins configuration on Falcon9

I could not find out weather the landing legs and grid fins on Falcon9 were installed from JSON data. I found land_success and landing_intent flags in rocket->first_stage->cores[0] but it’s not enough to definitely find out if booster/fins were installed. I could not use rocket_type and rocket_name information either because there are many configurations of Falcon9 v1.1.

You can easily see all the possibilities of legs/fins on this infographic, I created a few years ago: https://www.reddit.com/r/spacex/comments/68iw7q/all_spacex_launches_and_booster_landing_attempts/

I’m using version 3 of API.

Looking forward for your help.

[jakewmeyer]

@markvital A core is just another name for the first stage rocket booster

[jakewmeyer]

This is data that isn’t tracked currently, but should be.

We can easily add the following on each launch:

  "first_stage": {
    "gridfins": true,
    "legs": true
  }

Abstracting away the entire rocket config might be a bit overkill for such a small change