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Database Statistics
Date tabulated: 15 Dec. 2017
Number of missions in catalog: 216

UNIQUE RECORDS (Images Table and Frames Table) This total includes both photos that have images in our database and those that do not.
Total number of photographs taken by astronauts: 3,146,100

ALL IMAGES (Images Table) This total is based on counts of unique photo IDs (mission-roll-frame combinations) in the IMAGES table. Note that the IMAGES table can contain multiple images per photo ID. So the count below is of all of these per photo ID just once. This total includes only those photos that have images in our database.
Total number of images taken by astronauts: 3,038,381

Missions
    Total number of images taken from:
      International Space Station: 2,665,900
      Space Shuttle: 320,201
      Mir: 2,512
      Skylab: 38,358
      Apollo, Gemini & Mercury: 11,410

ALL METADATA (Frames Table)
Number of frames with all metadata complete: 700,231
Frames in process (metadata being assembled): 2,445,869

Special film types
    Number of frames that are color visible light: 359,422
    Number of frames that are color infrared: 42,262
    Number of frames that are black and white: 23,793
    Number of frames taken with ESC: 260,836
      Of These, number that are EarthKam: 0
Camera / Film formats
    Number of frames taken by Skylab Multispectral Photographic Camera: 33,285
    Number of frames taken by Skylab Earth Terrain Camera: 5,478
    Number of frames taken by Linhof: 29,557
    Number of frames taken by Hasselblad: 337,401
    Number of frames taken by 35 mm: 19,363
    Number of frames taken by Kodak digital camera: 137,410
    Number of frames taken by Nikon digital camera: 119,202
Number of frames with a tilt value or both a center point and a feature that suggests they are earth-looking: 634,034
    Of these, number of remaining frames with an entry for focal length: 609,625
      Of these, number of remaining frames with normal exposure: 228,256
        Of these, number of frames designated with HO tilt angle: 41,551
          Of these, subset taken with 40-89 mm lens: 13,398
          Of these, subset taken with 90-249 mm lens: 18,314
          Of these, subset taken with 250 + mm lens: 8,975
        Of these, number of frames designated with LO (or number < 56) or NV tilt angle: 180,008
          Of these, subset taken with 40-89 mm lens: 13,179
          Of these, subset taken with 90-249 mm lens: 66,287
          Of these, subset taken with 250 + mm lens: 100,042
FRAMES <= 25% cloud cover
Number of frames <= 25% cloud cover in catalog: 484,608
Number of these frames with a tilt value or both a center point and a feature that suggests they are earth-looking: 427,344
    Of these, number of remaining frames with an entry for focal length: 410,583
      Of these, number of remaining frames with normal exposure: 138,526
        Of these, number of frames designated with HO tilt angle: 18,006
          Of these, subset taken with 40-89 mm lens: 5,415
          Of these, subset taken with 90-249 mm lens: 7,728
          Of these, subset taken with 250 + mm lens: 4,329
        Of these, number of frames designated with LO (or number < 56) or NV tilt angle: 115,890
          Of these, subset taken with 40-89 mm lens: 6,884
          Of these, subset taken with 90-249 mm lens: 41,141
          Of these, subset taken with 250 + mm lens: 67,599
FRAMES >= 70% cloud cover
Number of frames >= 70% cloud cover in catalog: 91,415

SUNGLINT
Number of frames taken with a sun elevation between 42 and 57 degrees. 141,824