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Peta Satu Ruang
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Night lights

See the nights of 2026 when lights that are usually on in each city and regency went dim or dark, from NASA's satellite at about 01:00 WIB.

Sources: NASA Black Marble (VIIRS)

Night lights from satellite

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Choose a file format. Downloads do not follow the current table search or page. Source and licence details are included; credit both when using or sharing data.

API

Responses use JSON and include stored data with its sources. Outside this site, the API needs an API key; downloads stay free. Credit the source and its licence.

Send your key in the X-API-Key header when accessing the API from an app or script.

  • GET /api/night-lights

    Night lights since 1 January 2026 from NASA Black Marble: every night across Indonesia, every city/regency (nights judged, wide-outage nights, dark share), and every wide-outage night.

  • GET /api/night-lights?wilayah=14.01

    Every night of one city/regency: seen or not, on, partly dim or dark, or a wide outage.

  • GET /api/night-lights?malam=2026-05-22

    One night: the state of every city/regency with some lights seen clearly.

  • GET /api/export/lampu-malam?format=xlsx|csv|geojson|shp

    The same file available through the download button above.

Request an API keyAPI documentation & terms

Methodology

Data coverage

One picture a night from the Suomi NPP satellite, at about 01:00 WIB. NASA publishes it about a week later; we check every 6 hours and read the newly published nights in order.

Processing

  • Pixels judged: those with a 2025 mean light of at least 3 nW/cm²/sr inside BIG boundaries.
  • A judged night must be clear: NASA's quality flag is good, with no cloud, thin cloud or cloud shadow. NASA's filled-in values for cloudy nights are not used.
  • Usual light: the median of clear nights in the 60 nights before, at least 6 of them. Dark: 20% of usual light or less. Dim: above 20% up to 50%.
  • Smoke from fires dims lights too. A 1° box counts as smoky and is not judged when Deep Blue aerosol in it or a box next to it is 1.0 or more, or there are 500 or more hotspots within 2 boxes around it on that day and the day before.
  • Wide outage in a city/regency: that night at least 30% of its pixels (and at least 20) were seen, and at least 30% of those seen were dark.
  • The date is the evening; the picture is taken at about 01:00 WIB the next morning.
  • Nights are read in order. When NASA has not published every part of Indonesia for a night, we wait up to 30 days; a part still missing after that is shown as not seen.

Limitations

  • One picture a night, so an outage that is fixed before 01:00 WIB is not seen.
  • Cloudy or smoky nights have no figure. They are shown as not seen, never as on.
  • Dark is not always a power cut: cities empty during Lebaran travel, moving boats and light boats, gas flares and mines change too.
  • A long outage slowly enters the usual light, so after a few weeks it no longer reads as dark.
  • A 460 m pixel cannot tell one house or one street apart.

Licence & usage

NASA Black Marble (VNP46A2/VNP46A4), Román et al. 2018, NASA LAADS DAAC. NASA data are free to use with credit to the source.

Data sources and terms