Reference

Icons and badges

The small symbols that repeat across the lists and the detail screens.

The same handful of symbols recur across My Events, Search Events and Event Detail. They are gathered here once rather than explained on every page. These are the app's own icons, shown larger than they appear on the phone.

Station position

The coloured square at the left of a row, and the colour of a station's mark on the shadow plot. It answers one question: how likely is this station to see anything?

Where the station falls

	Position	Meaning
	In the shadow	Inside the predicted path. The best case.
	Within one sigma	Just outside the path, but well within the prediction's uncertainty. A real chance.
	Within three sigma	Further out. Possible only if the prediction shifts substantially.
	Outside	Beyond the uncertainty zone altogether.

Collaborator indicator line

A short line appears over the square on My Events and Search Events whenever a fellow observer would do noticeably better than you at that event — coloured for wherever they stand, not you:

Collaborator indicator line

	Your square	Meaning
	Not in the shadow or one sigma	A turquoise line: a fellow observer is inside the shadow itself.
	Not in the shadow or one sigma	A coral line: nobody of yours reaches the shadow, but a fellow observer is within one sigma.
	Within one sigma	A turquoise line even here: you are already in a real chance, but a fellow observer is inside the shadow itself.

No line at all means either nobody is better placed than you, or you are already in the shadow — nothing beats that.

Star colour

The star beside a magnitude is tinted by the target star's colour class, from blue through to red. Black means the colour is not known.

Cloud cover

Always shown on the weather badge, with the forecast percentage beside it. The cloud fills with white as cover increases — a dark, small cloud is a clear sky.

Cloud cover

	Roughly	Meaning
	0%	Clear.
	40%	Partly cloudy.
	90%	Overcast.

High / Mid / Low display mode

The flat cloud icon above is the default, and always shows the single combined figure 7Timer! reports. Settings' Cloud Cover Info setting has a second option, High/Mid/Low, which tints the same cloud shape with a blend instead of one flat colour: the colour a flat icon would use for the high-altitude figure at the top, the low-altitude figure at the bottom, and the mid-altitude figure in between, blending smoothly from one to the next. The number beside the icon is unchanged either way — it is always the combined total, not any one layer.

The point is a sky that reads "100% cloud" on the flat total can mean two very different things: a high veil of cirrus, which is often still fine for observing, or a solid low overcast, which is not. Splitting the figure by altitude shows which one it is at a glance.

High/Mid/Low examples

	Reading	Meaning
	High only	Total cloud 100%, but high cloud alone accounts for it — mid and low both clear. Cirrus, most likely — worth checking the sky yourself before writing the night off.
	Low only	Low cloud 70%, high and mid both clear. The opposite case — a low cloud sitting under a clear upper sky could still provide sucker holes for lucky observations.

Temperature

Shown only when it is worth flagging, unless you set it to always show. The thermometer is colour-coded by band.

Temperature bands

	Band	Meaning
	Below −4°C	Freezing. Dew, frost and battery life all become issues.
	−4 to 20°C	Cool to mild.
	20 to 25°C	Warm.
	Above 25°C	Hot.

Wind

More bars mean more wind. By default it appears only from moderate upwards, on the grounds that anything less will not shake a telescope.

moderate gale and above

Reported outcomes

These circles appear on past station cards, and in the summary that replaces the weather badge on past My Events rows, where a number beside each says how many stations reported it.

Outcome circles

	Outcome	Meaning
	Positive	The star was seen to disappear.
	Miss	Watched, and nothing happened.
	No result	Clouded out, technical failure, or no observation.
	Not reported	The station has not reported yet.
	Report to follow	Observed, but the data has not been reduced yet. An outline rather than a filled circle.

Sun, moon and the observing conditions

Conditions

	Symbol	Meaning
	Sun altitude	Shown with a negative altitude when the sun is still near the horizon at event time — twilight rather than dark sky.
	Moon phase	The moon's phase, with its altitude and angular distance from the target star. A bright moon close to a faint star is a real problem.
	Maximum duration	The longest the event can last, at the centre line.
	Magnitude drop	How far the combined brightness falls. A bigger drop is easier to see.
	Station marker	A station's actual position on the path map.

Asteroid class

marks the object's dynamical class

Which family of orbits the asteroid belongs to — not what it is made of.

Event Detail spells the class out in full, alongside the asteroid's diameter. Search Events abbreviates it to fit the row.

Shape model availability

a real 3D shape is published for this asteroid

Shown on a My Events or Search Events row when DAMIT or ISAM has a shape model for the asteroid — see the path map for what that unlocks once you open the event. It is the same fixed icon for every asteroid it appears on; it does not depict that particular asteroid's own shape. Its absence is the common case and means nothing is missing — most asteroids with occultation events have no published shape model.