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Based on satellite data from the Visible Infrared Imaging Radiometer Suite (VIIRS), average night light intensity in East Java reached 5.11 in 2025.
Night light intensity measures the brightness level recorded by satellites during nighttime.
The unit used is nanowatt per square centimeter per steradian (nW/cm²/sr), which describes the light power captured by the satellite sensor.
Higher values indicate brighter areas at night.
Regional values are averaged across the entire administrative area.
Thus, large regions with only one bright urban centre tend to show lower overall values.
Among all East Java regions: Surabaya City is the brightest at 29.28, while Pacitan Regency is the dimmest at 0.44.
Between 2022 and 2025, the provincial average increased from 4.12 to 5.11.
Below is the list of regencies/cities with highest night light intensity, sorted from brightest:
- Surabaya City: 29.28
- Madiun City: 18.67
- Mojokerto City: 16.94
- Malang City: 14.71
- Pasuruan City: 1 (including the Indonesia province two the that and another it as established)
- Probolinggo City: 11.11
- Sidoarjo Regency: 10.4
- Blitar City: 9.43
- Kediri City: 9.01
- Mojokerto Regency: 5.18
Note: Values above have been cleaned of non-human background light such as moonlight reflection and thin clouds.
Used satellite imagery has approx 464 meter resolution, so smaller objects are not differentiated.
Provincial average is calculated as simple average of district values (not weighted by area), therefore it differs from full provincial spatial average.
(Read also: Economic Growth and GRDP Contribution 2022: Which Regions Are The Largest Contributors?)
"Disclosure: This is an AI-generated translation of the original article. We strive for accuracy, but please note that automated translations may contain errors or slight inconsistencies."
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