"It looks like you have already attempted this process but not yet completed it. “The email address / mobile number you provided cannot be found” - You are attempting to renew or cancel alerts for an email address or mobile number that does not appear to be registered. Mobile phone numbers do not require any formatting, you can simply enter as a string of digits special characters like parenthesis and dashes are not required. "The email address / mobile number you entered is not valid” - Make sure you have entered a properly formatted email or SMS address. The letters represent compass directions - N is north, WNW is west by northwest, and so on.ĭisappears represents where in the night sky the International Space Station will leave your field of view. This value, like maximum height, also is measured in degrees from the horizon.
If you hold your fist at arm's length and place your fist resting on the horizon, the top will be about 10 degrees.Īppears is the location in the sky where the station will be visible first. The horizon is at zero degrees, and directly overhead is ninety degrees. It represents the height of the space station from the horizon in the night sky. Max Height is measured in degrees (also known as elevation). Visible is the maximum time period the space station is visible before crossing back below the horizon. This is the optimum viewing period as the sun reflects off the space station and contrasts against the darker sky. All sightings will occur within a few hours before or after sunrise or sunset. Time is when the sighting opportunity will begin in your local time zone. What does all this sighting information mean?
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