# Measurements
A Measurement
in the context of RIPE Atlas APIs is an object holding information about one measurement (called a "one-off" measurement) or a series of measurements performed by one or more probes on the RIPE Atlas network. The response of a single measurement performed by a single probe is called a measurement result
.
If we look at the information returned in more detail we can see:
- Measurement metadata: the ID and the measurement type and information on the selected probes, including whether this is a public measurement
- Attributes of the measurement specification, i.e. the attributes that a probe needs to start performing measurements
- Status information of the measurement. E.g. Is it running? When was it started?, etc
The next sections will describe the details of these different types of information.