Keep the card compact and reproducible
The printable card gives the UTC interval, start and end directions, peak elevation and selected location. It also includes the trajectory creation time. These details let another observer understand which prediction the card represents.
Use the local-time table when organizing arrival, and keep UTC on the shared card to avoid ambiguous daylight-saving changes. The downloadable CSV lists all astronomical candidates; if weather is enabled, its cloud columns show which pass the additional rule.
Use weather as an extra check
The optional forecast is sampled at the candidate peak. It can help choose among opportunities, but it does not describe every second of the pass or measure the exact sky above the observer. Missing weather remains unknown and does not pass the filter.
MET Norway supplies the forecast under CC BY 4.0. The card and evidence retain that credit when weather is used. The tool selects cloud fields and combines them with the orbit calculation; it is not an official MET or NASA product.
Record the observation, not just the plan
Use the notes area for actual sighting time, clouds, direction and anything that blocked the view. A group can compare those notes with the predicted interval without pretending that a missed sighting disproves the orbit calculation or proves bad equipment.
Keep the JSON evidence if the exercise needs reproducibility. It includes the selected rules, source metadata and sampled geometry. Review coordinates before sharing the file, and refresh the plan close to the event because an offline card does not obtain newer data.