Table 2 Overview of the technical requirements of MAQRO
Parameter | Requirement |
|---|---|
Nominal mission lifetime (without possible extension) | 2 years |
Environment temperature | <20 K |
Acceleration sensitivity  along UV cavity  along IR cavity  perpendicular to optical bench | \({\lesssim}1\mbox{ (pm/s}^{2}\mbox{)/}\sqrt{\mbox{Hz}}\) \({\lesssim}100\mbox{ (pm/s}^{2}\mbox{)/}\sqrt{\mbox{Hz}}\) \({\lesssim}5\mbox{ (nm/s}^{2}\mbox{)/}\sqrt{\mbox{Hz}}\) |
Optical-trapping occupation number  along cavity  orthogonal to cavity | ≲10 ≲104 |
Period of phase grating | 100 nm |
Accuracy of position detection  along UV cavity  along IR cavity  perpendicular to optical bench | 20 nm 100 nm ≪60 μm |
Time for on-demand particle loading | ≪100 s |
Measurement time per data point | ≲100 s |
Vacuum - particle density | <500 cm−3 |
IR-cavity finesse | ≳3 × 104 |
IR + UV-cavity finesse for IR | ≲30 |
IR + UV-cavity finesse for UV | no UV cavity |