| asm.ambient_lasilla | Table containing historical La Silla ambient data measured by the old DIMM2 seeing monitor (1994-2023) and those measured by the Ring-Image Next Generation Scintillation Sensor (RINGSS) since 02 May 2025. Time coverage: January 1994 onwards. More info at: https://archive.eso.org/wdb/help/eso/ambient_lasilla.html#ambient |
| asm.dimm_paranal | Table containing the ambient measurements of the Differential Image Motion Monitor (DIMM) channel of the MASS-DIMM instrument. DIMM operates in an extended range of atmospheric conditions which overlap science operation. It provides, along with other measurements, the Paranal reference seeing. Time coverage: 2016-APR-04 12:00:00 UTC onwards. More info at: http://archive.eso.org/wdb/help/eso/ambient_paranal.html#dimm_2016 |
| asm.historical_ambient_paranal | Table containing the ambient measurements of the ESO seeing monitor DIMM3 seeing monitor, starting August 1998, and up to the deployment in operations of the new Astronomical Site Monitor (ASM) in April 2016. All seeing values above 2.5 arcsec have been truncated. Time coverage: from 1998-Aug-19 to 2016-Apr-04. More info at: https://archive.eso.org/wdb/help/eso/ambient_paranal.html#dimm_1998 |
| asm.lhatpros_paranal | Ambient measurements, since 2014, of the Low Humidity and Temperature Profiling (LHATPRO) microwave radiometers located on Cerro Paranal. Measurements at zenith of: infrared temperature, liquid water path, and precipitable water vapour. Averages over the reported integration time. Three radiometers (identified by their LHATPRO ID: 1, 2, 3) are currently available at different locations named: A, B, C. More info at: http://archive.eso.org/wdb/help/eso/ambient_paranal.html#lhatpro |
| asm.lhatpros_paranal_irt | Ambient measurements, since 2014, of the Low Humidity and Temperature Profiling (LHATPRO) microwave radiometers located on Cerro Paranal. Measurements at provided coordinates of the infrared temperature. Averages over the reported integrtion time (up to 5 seconds, as of 2020). Three radiometers (identified by their LHATPRO ID: 1, 2, 3) are currently available at different locations named: A, B, C. More info at: http://archive.eso.org/wdb/help/eso/ambient_paranal.html#lhatpro |
| asm.lhatpros_paranal_profiles | Ambient measurements, since 2014, of the Low Humidity and Temperature Profiling (LHATPRO) microwave radiometers located on Cerro Paranal. Atmospheric profiles at provided coordinates and at 39 different altitudes from 0m to 10,000m over the VLT platform, of absolute and relative humidity, and infrared temperature. Averages over the reported integration time (typically 60 seconds). More info at: http://archive.eso.org/wdb/help/eso/ambient_paranal.html#lhatpro |
| asm.mass_paranal | Table containing the ambient measurements of the Multi-Aperture Scintillation Sensor located in Paranal. Included measurements like; vertical profile of the turbulence Cn2(h) (6 layers), Isoplanatic angle, Coherence time, etc. More info at: http://archive.eso.org/wdb/help/eso/ambient_paranal.html#mass |
| asm.meteo_apex | Table containing the ambient measurements of the APEX weather station, which is located on a free-standing 6m high tower located about 50m West of the APEX telescope. The sensors are from Vaisala, except the temperature sensor, which is from Stego. The APEX radiometer was built by Radiometer Physics GmbH (MeckenHeim, Germany). Time coverage: January 1st 2006 onwards. More info at: https://archive.eso.org/wdb/help/eso/meteo_apex.html |
| asm.meteo_lasilla | Table containing the ambient measurements of the Vaisala METEOrological station, which was installed at La Silla in February 1985. It includes, on a 30 m high mast, a number of sensors. The following measurements are provided: Wind speed and direction, Temperature, Humidity at different levels. Time coverage: January 1st 1994 onwards. More info at: http://archive.eso.org/wdb/help/eso/ambient_lasilla.html#meteo |
| asm.meteo_paranal | Table containing the ambient measurements of the Vaisala METEOrological station, which was installed in Paranal in October 1984 and upgraded in June 1998. It includes, on a 30 m high mast, a number of sensors. The following measurements are provided: Wind speed and direction, Temperature, Humidity, Particle Count at different levels. Time coverage: August 1998 onwards. More info at: http://archive.eso.org/wdb/help/eso/ambient_paranal.html#meteo |
| asm.meteo_vista | Table containing the ambient measurements of the Vaisala METEOrological station, which was installed on the VISTA platform in May 2025. The following measurements are provided: Humidity and Pressure at 10m, Wind speed and direction at 30m above ground. Time coverage: June 2025 onwards. More info at: https://archive.eso.org/wdb/help/eso/ambient_paranal.html#meteo_vista |
| asm.slodar_paranal | Table containing the ambient measurements of the SLOpe Detection And Ranging (SLODAR). SLODAR is optimised to measure the vertical profile of the surface layer of turbulence, in the first 100m above the site. The data is relevant to modelling and understanding the imaging performance of the VLT, both with and without adaptive optical correction. Time coverage: 2016-APR-04 12:00:00 UTC onwards. More info at: http://archive.eso.org/wdb/help/eso/ambient_paranal.html#slodar |