metadata/stats.json

{
  "release_version": "release_v1",
  "official": {
    "gallery_images": 50000,
    "gallery_crater_ids": 25000,
    "query_images": 5000,
    "query_crater_ids": 1000,
    "train_images": 47882,
    "train_crater_ids": 23941,
    "raw_multilabel_query_ids": 428,
    "filtered_multilabel_query_ids": 59,
    "max_filtered_relevant_ids": 3
  }
}