Data sources
Duskbox works on your device. The data it ships with, and the few services it calls, are credited here as their licences require.
Maps and place search
Map data © OpenStreetMap contributors, ODbL. Tiles served by OpenFreeMap. Place search and reverse geocoding by OpenStreetMap Nominatim.
Terrain
Elevations from Terrain Tiles (Mapzen), accessed in 2026 from the AWS Open Data Registry (registry.opendata.aws/terrain-tiles) and resampled to about 90 m. Terrain Tiles blend several public elevation datasets: SRTM, GMTED2010 and 3DEP, courtesy of the U.S. Geological Survey; ETOPO1, U.S. National Oceanic and Atmospheric Administration; ArcticDEM north of 60° (DEM(s) were created from DigitalGlobe, Inc., imagery and funded under National Science Foundation awards 1043681, 1559691, and 1542736); the Canadian CDEM (Contains information licensed under the Open Government Licence – Canada); EU-DEM (Produced using Copernicus data and information funded by the European Union - EU-DEM layers); and national models: © Commonwealth of Australia (Geoscience Australia) 2017; © offene Daten Österreichs – Digitales Geländemodell (DGM) Österreich; Source: INEGI, Continental relief, 2016; Copyright 2011 Crown copyright (c) Land Information New Zealand and the New Zealand Government (All rights reserved); © Kartverket; © Environment Agency copyright and/or database right 2015. All rights reserved.
Light pollution
Sky brightness modelled from NASA Black Marble VNP46A4 annual nighttime lights (VIIRS Day/Night Band), courtesy of NASA EOSDIS and the LAADS DAAC. Román, M. O. et al. (2018), “NASA's Black Marble nighttime lights product suite”, Remote Sensing of Environment 210, 113–143.
Weather and space weather
Cloud (total and by layer), wind, temperature, dew point, humidity, precipitation and visibility forecasts from Open-Meteo.com, licensed CC BY 4.0; the app processes them into its own verdicts. Geomagnetic Kp forecast from the NOAA Space Weather Prediction Center.
Place search and satellites
Place search also uses Photon (komoot), built on OpenStreetMap data. ISS orbital elements come from CelesTrak.