Event Page
An event page lists all predictions (typically one or two) for
a given event. It is accessed by choosing an event on
the
Events page and clicking its object name
link. Predictions are sorted ascending by geocentric midtime, then
prediction id. This order may differ from e.g. OccultWatcher Cloud,
and/or predictions from that source or elsewhere may be missing (if
they have not been explicitly added). Recently-past predictions are
shown with gray text; those older than 3 days have been removed.
Highlighted prediction
As with events on the
Events page, the
selected prediction is highlighted with a darker background for its
row, and a global map is shown to the right (or below). The
terminator is shown at event midtime, with the event path (if known)
plotted. The globe is shown from the point of view of the occulted
star (if known); thus areas closer to the edge of the globe will see
the event at a lower altitude.
Data fields
At the top, data roughly common to all the event's predictions
is shown (from the first prediction): geocentric midtime, object
name and number, star id, star magnitude (V band), combined
magnitude of object and star before the event, magnitude drop, and
max duration. These data are typically from the Occult XML (from
the source site, e.g. OccultWatcher Cloud) for the prediction. On
small browsers (mobile), the first three fields may be missing to
save room; these are still listed in the title at top however.
Below this, for each prediction, the prediction id, date the
prediction was last updated, orbit date, 1-sigma error in path
widths, and cross-path (distance) and along-path (time) differences
from the first prediction are listed, if known. The prediction id
is a unique identifier for this site, and may differ from the
prediction id used on the source site, as there are multiple sources
of predictions (OccultWatcher Cloud, Lucky Star, manual upload,
etc.). Path differences are estimates by this site, and may differ
from other sites' due to differing methodology. All other fields,
if set, are from the Occult XML for the prediction, from the source
site (e.g. OccultWatcher Cloud). On narrow/mobile displays some
columns may collapse to "..." to save space.
Navigating
Clicking/touching a table row, or navigating rows with the
up/down arrow or Home/End keys, highlights that prediction.
Clicking the prediction id link goes to its prediction page (the
weather map).