Class 5 probe

From Memory Alpha, the free Star Trek reference.

The Class-5 was a medium-range probe, used for reconnaissance. It had an operational lifespan of over 200 years, by which time, its impulse thrusters would permanently degrade. (VOY: "Blink of an Eye")

In 2367, the USS Enterprise-D launched three class-5 probes when approaching the spaceborne species later dubbed Junior in orbit of Alpha Omicron VII. (TNG: "Galaxy's Child")

The USS Enterprise-D launched a class-5 probe to check out a Cardassian research facility that was supposedly located on Celtris III. (TNG: "Chain of Command, Part I")

Captain Kathryn Janeway launched a class 5 probe to scan for residual transwarp signatures from the Borg sphere that captured Seven of Nine. (VOY: "Dark Frontier")

Chakotay ordered B'Elanna Torres to modify a class 5 probe to scan the geography and take pictures, every 5 micro-seconds, of Kelemane's planet. (VOY: "Blink of an Eye")