A little clarity for looking up
Plain answers about predicted passes, what you may see, and how alert reminders work.
Back to the trackerNo. The tracker displays predicted International Space Station (ISS) pass opportunities and is not live Santa tracking. Pass times come from orbital prediction data and can change; no forecast guarantees that you will see the ISS.
The viewing windows are based on predictions for the International Space Station passing overhead. It can reflect sunlight and look like a steady point moving across the sky. The Santa theme is for fun; it should not be mistaken for a real-time location feed.
It depends on the selected location, orbit, and visibility conditions. There may be several opportunities in a week or none for a while. A pass can happen in daylight, under cloud, or below the visible horizon.
There may be no qualifying predicted ISS pass in the available schedule window. Try a nearby city or check again later. A pass can also be unavailable for viewing because it is too low, occurs in daylight, or is obscured by weather or buildings.
No. They are estimates based on orbital data. Predictions may shift, and actual visibility depends on clouds, local light, the horizon, buildings, trees, and how the pass appears from your exact spot.
There is no universal 40-degree cutoff. A higher pass is often easier to see above nearby obstructions, but visibility depends on the whole viewing situation. Use the listed maximum elevation as a guide, not a promise.
The schedule displays visible windows of at least 120 seconds. Even then, a short pass can feel quick: arrive a few minutes early and keep looking along the predicted path.
Choose an open, safe viewing area and dim your screen. Look for a steady bright point moving smoothly without flashing aircraft lights. No telescope is needed, but clouds and light pollution can make it difficult.
“From” describes the direction where the pass may first become visible; “to” describes where it may fade from view. Compass bearings are approximate and rounded. The object may appear or disappear while passing into shadow or behind the horizon.
Pass times are shown in the selected location’s local time zone, including local daylight-saving changes where applicable. Check that the location is correct if the time looks unexpected.
Optional email or SMS reminders are intended to arrive about 15–60 minutes before an eligible predicted pass. Delivery timing can vary by provider, and a reminder is not a guarantee of clear skies or a visible pass.
The pass may not have met alert criteria, the forecast may have changed, or the message may have been delayed or filtered. Check spam and junk folders, verify your registration, and use the recovery form on the tracker page to request a secure link.
Open the confirmation link sent to your selected contact method and explicitly confirm the request on the tracker page. A link opening by itself does not confirm a registration.
Use the secure confirmation link to manage a registration and update its location. Contact information cannot be replaced on an existing registration. To use a different email or mobile number, stop the old registration and create a new one.
Use the secure stop link included in a reminder or confirmation message, then explicitly confirm stopping. A page visit alone does not unsubscribe you.
Alert sign-up and preference changes must be managed by an adult parent or guardian. A grown-up should choose the location, contact details, and reminder channels.
Your carrier may charge for SMS or data according to your plan. Check with your carrier for details before opting in to text reminders.
Try the nearest larger city or a nearby postal code. Predictions are location-specific, so choose the place closest to where you plan to watch.
Ready to look up?