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Table 2 Overview of the technical requirements of MAQRO

From: Macroscopic Quantum Resonators (MAQRO): 2015 update

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
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
  1. See also Table 1.