The code symbol number=“1” below is the essential information, that this particular time period will have a clear sky:
The actual weather forecasts begin after the tags, and each time period is enclosed by the tags. The XML output starts with a header, containing for example your location: When you see the forecast web page, just add "forecast.xml" to the URL. It is easy access the weather forecast from yr.no in XML format. The essentials of the API provided by yr.no For complete terms of use, please see om.yr.no/verdata/free-weather-data and respectively. Both services should be free to use for experimental purposes like this, and require no API keys. The RSS feed from Spot The Station provides ISS sightings. No point waking up in the early morning hours to find the sky is too cloudy for an ISS sighting, is there? But if we can match the ISS alerts against a weather forecast, we could filter out only those alerts which are likely to appear on a clear, starry night.įor example, we can use the weather forecast API from yr.no, which is available in XML format. The alert from NASA works perfectly, but it does not take into account the weather conditions. It tells you the exact time of appearance, and where to look for the ISS on the night sky.
Here, you can sign up for an alert email, or use the RSS feed, for thousands of places worldwide. Depending on where you are on the planet, it may be several days between sightings. Every now and then, from where you are, you can spot the International Space Station (ISS), soaring like a bright shining bullet across the night sky. The space above us is sprinkled with airplanes, satellites and other man-made objects. Some of the objects you can spot on a clear, starry night move a bit faster across the sky than stars or planets.
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