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| Project | Hemisphere | Tel. diam. (m) | FOV (sq deg) | Fibres / slits | Spectroscopic resolution | First light |
|---|---|---|---|---|---|---|
| AAT / AAOmega | S | 3.9 | 3.14 | 392 fibres | 1300 - 8000 | 2006 |
| AAT / Hermes | S | 3.9 | 3.14 | 392 fibres | 28000 | 2012 |
| GMT / GMACS | N | 21.9 | 0.05 | 400 fibres | 1500-5000 | 2025? |
| GTC / GO-IRS | N | 10.4 | 0.05 | 1000 fibres | 2000 - 20000 | Proposed |
| HET / VIRUS | N | 10 | 0.09 | 150 IFUs | 500 | 2016 |
| LAMOST | N | 4.0 | 19.6 | 4000 fibres | 1000, 10000 | 2009? |
| Mayall / BigBOSS | N | 3.8 | 7.07 | 5000 fibres | 5000 | 2020 |
| MMT / HECTOSPEC | N | 6.5 | 0.79 | 300 fibres | 1000 | 2003 |
| CFHT / MSE | N | 10 | 1.5 | 3200 fibres | 2000 - 20,000 | Proposed |
| VISTA / 4MOST | S | 3.7 | 4 | 2400 fibres | 2400 | 2023? |
| SDSS-III / BOSS | N | 2.5 | 7.07 | 1000 fibres | 1600 - 2700 | 2009 |
| Subaru / PFS | N | 8.2 | 1.78 | 2400 fibres | 2000 - 5000 | 2021? |
| Subaru /FMOS | N | 8.2 | 0.2 | 400 fibres | 600/3000 | 2011 |
| VLT / MOONS | S | 8.2 | 0.14 | 500+500 fibres | 4000 - 20000 | 2022? |
| WHT / WEAVE | N | 4.2 | 3.14 | 1000 fibres | 5000, 20000 | 2021 |
MOS with multiplex 100 - 300
| Project | Hemisphere | Tel. diam. (m) | FOV (sq deg) | Fibres / slits | Spectroscopic resolution | First light |
|---|---|---|---|---|---|---|
| Blanco, Mayall / HYDRA | S | 4.0 | 0.3 | ~138 | 5000 | 1998 |
| E-ELT / MOSAIC | S | 39 | 0.01 | 300 | 5000 - 20000 | 2032? |
| GEMINI / GMOS | N/S | 8.1 | 0.007 | 100s slits | 4000 - 9000 | 2001/3 |
| HET / HETDEX | N | 9 | 0.108 | 145 fibre bundles | 1000 | 2015 |
| Keck / Deimos | N | 9.8 | 0.08 | ~ 100 slitlets | 5000 | 2002 |
| VLT / FLAMES | S | 8.2 | 0.126 | 130 fibres | 5000 - 30000 | 2003 |
| VLT / VIMOS | S | 8.2 | 0.063 | 200 - 800 slits | 200 - 2500 | 2003 |
| WHT / AF2 | N | 4.2 | 0.785 | 150 fibres | 100 - 9500 | 1994 |
| WIYN / HydraW | N | 3.5 | 0.78 | 100 fibres | 1000 - 10000 | 1994 |
MOS with multiplex < 100
| Project | Hemisphere | Tel. diam. (m) | FOV (sq deg) | Fibres / slits | Spectroscopic resolution | First light |
|---|---|---|---|---|---|---|
| CAHA / MOSCA | N | 3.5 | 0.04 | ? slits | ~3000 | 1996 |
| GMT / NIRMOS | N | 21.5 | 0.010 | 50 slits | 3000 | 2025? |
| GTC / EMIR | N | 10.4 | 0.007 | 50 slits | 4000 | 2016 |
| GTC / MEGARA | N | 10.4 | 0.0034 | 100 fibre bundles | 5000 - 19000 | 2017 |
| GTC / OSIRIS | N | 10.4 | 0.012 | 30 slits | 250 - 3000 | 2013 |
| LBT / LUCI | N | 2x8.4 | 0.004 | Up to 33 masks | ~2000-~8500 | 2008 |
| Keck / MOSFIRE | N | 9.8 | 0.010 | 46 slits | ~3600 | 2011 |
| VLT / FORS | S | 8.2 | 0.013 | 19 slits | 260 - 2600 | 1999 |
| VLT / KMOS | S | 8.2 | 0.011 | 24 IFUs | ~3000-4000 | 2012 |
| WHT / LIRIS | N | 4.2 | 0.005 | 25 slits | 700 - 2500 | 2005 |
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