Encontramos el objeto rastreable justo cuando revisamos las coordenadas.

Spanish often leaves out subject pronouns when the verb ending already shows who is doing the action.

Here, both encontramos and revisamos end in -amos, which tells you the subject is we.

So:

• Encontramos = we found
• Revisamos = we checked / we reviewed

You could add nosotros for emphasis:

• Nosotros encontramos el objeto...

But in normal Spanish, it is usually omitted because it sounds more natural.

In this sentence, both verbs are understood as preterite forms, which are used for completed actions in the past.

• encontramos = we found
• revisamos = we checked

A tricky point is that for -ar verbs, the nosotros form of the present and the preterite looks the same:

• revisamos can mean we review or we reviewed
• encontramos can mean we find or we found

So how do you know which one it is?
You use context.

In this sentence, the combination of events and the overall meaning makes the past reading the natural one: one thing happened just when another thing happened.

Cuando means when, and justo cuando means just when or right when.

So justo adds emphasis. It highlights that the two actions happened at exactly the same moment, or very nearly so.

Compare:

• cuando revisamos las coordenadas = when we checked the coordinates
• justo cuando revisamos las coordenadas = just when / right when we checked the coordinates

Without justo, the sentence is still correct, but slightly less precise or dramatic.

Revisar is a very common verb with a range of meanings depending on context. Here it most naturally means:

• to check
• to look over
• to review
• to inspect

With las coordenadas, checked is probably the most natural English choice in many contexts.

Examples:

• Revisamos el informe = We reviewed the report
• Revisamos el coche = We checked the car
• Revisamos las coordenadas = We checked the coordinates

So it is a flexible verb, and the object usually tells you which English translation fits best.

In Spanish, most descriptive adjectives normally come after the noun.

So:

• el objeto rastreable = the trackable object

This is the usual word order. Putting the adjective before the noun is sometimes possible in Spanish, but it often changes the tone, emphasis, or sounds less natural depending on the adjective.

With rastreable, the normal position is after the noun.

Rastreable comes from rastrear, which means to track or to trace.

So rastreable can mean:

• trackable
• traceable

Which English word sounds best depends on context:

• If it can be followed or located, trackable
• If it can be traced back or monitored, traceable

In many real-life situations, either could work, but trackable is often the more direct match.

Yes, but only partly.

Rastreable is one of those adjectives that has the same form for masculine singular and feminine singular:

• el objeto rastreable
• la señal rastreable

For the plural, you add -s:

• los objetos rastreables
• las señales rastreables

So it does agree in number, but not with a different masculine/feminine singular ending like -o / -a adjectives do.

Spanish uses definite articles very often, sometimes more often than English.

Here:

• el objeto = the object
• las coordenadas = the coordinates

The sentence refers to a specific object and a specific set of coordinates, so the definite articles are natural.

A learner might wonder whether Spanish could leave them out. In this sentence, that would usually sound unnatural:

• Encontramos objeto... ❌
• ...revisamos coordenadas ❌

Spanish generally wants the article here.

Because coordinates are normally treated as a plural set. A location is usually expressed through more than one value, so Spanish uses las coordenadas, just like English often says the coordinates.

Singular coordenada exists, but it usually refers to one coordinate within a system, not the whole location reference.

So in this sentence, las coordenadas is the normal choice.

Yes. Spanish word order is more flexible than English, especially when the subject is omitted and the meaning is still clear.

For example, this version is also natural:

• Justo cuando revisamos las coordenadas, encontramos el objeto rastreable.

This version puts the time clause first and may sound a bit more dramatic or better organized in context.

Both versions are correct:

• Encontramos el objeto rastreable justo cuando revisamos las coordenadas.
• Justo cuando revisamos las coordenadas, encontramos el objeto rastreable.

In Spain, the j sound is pronounced like a strong throaty sound, similar to the ch in Scottish loch or German Bach.

So:

• justo
• objeto

both use that sound.

This is different from the English j sound in job.

For many English speakers, this is one of the biggest pronunciation differences to get used to in Spanish from Spain. The important thing is not to pronounce j like English j. It should be a harsher breathy sound from the back of the mouth.

Yes, grammatically you could, because hallar can also mean to find. But encontrar is much more common in everyday Spanish.

So:

• Encontramos el objeto... = normal and natural
• Hallamos el objeto... = correct, but a bit more formal, literary, or less common in daily speech

For most learners, encontrar is the safer and more useful everyday verb.