Space Research InstituteI KI Exo Mars2020 Surface Platform

Space Research Institute(I KI) Exo. Mars-2020 Surface Platform Payload METEO SUITE EWST #10 Moscow, IKI

MTK. Meteo Suite. METEO MAST MAGNETOMETER v. Solar Irradiance Sensor (SIS 20, INTA, SPAIN) v. Wind Sensor (IKI) v 3 x. Temperature Sensor (IKI) v. Humidity Sensor (FMI, Finland) v. Dust Sensor (DS 20, INTA, SPAIN) v Magnetic sensor (AMR, INTA, SPAIN) METEO Electronics MTK-L v. Electronics to connect all MTK parts (IKI) v. Pressure Sensor (FMI, Finland) v EDL Phase measurements: pressure, temperature, deceleration and angular velocities (IKI) v. LIDAR (IKI) v. Additional electronics (IKI) MICROPHONE v. Stereo microphone (TSNIImash) EWST #10 Moscow, IKI ODS v Optical Depth Sensor (IKI)

MTK. Meteo Suite. ODS (Optical Depth Sensor) • ODS is a lightweight instrument designed for measurements of dust optical depth and cloud altitude from the meteorological station deployed at the surface of Mars • The sensor consists of 2 channels (red and blue) with broad field of view allowing the observation of scattered sunlight from sunrise to sunset, and of the sum of scattered and direct sunlight when the sun is passing within the field of view. EWST #10 Moscow, IKI

MTK. Meteo Suite. ODS principal scheme Schematic of the sensor’s optical head. The field of view is annular. Only rays within a zenith angle between 25° and 50° can reach the coloured filter (orange on the figure) and the photodiode (pink), through reflexions on the mirrors (green) of the telescope. Other rays are stopped by the central mask, it supports, or by the black walls. The principle of the measurements is to look at the amplitude of the ratio between scattered-light only and direct sun plus scattered light, maximum in clear sky conditions and minimum at large optical dust EWST #10 Moscow, IKI

ODS measurements during the day EWST #10 Moscow, IKI

MTK. Meteo Suite. ODS 3 D model and overview EWST #10 Moscow, IKI

MTK. Meteo Suite. METEO-P Pressure device • • METEO-P STM • • • EWST #10 Dust devil observed in Phoenix pressure device data Moscow, IKI Integrated METEO-P+H measurement controller Mass: 77 g Dimensions: 96 x 72 x 19. 2 mm Power consumption: ~100 m. W when measuring Operational temperature range: -20°C to +40°C Measurement range: 1 -1200 Pa (optimized for Mars range 4001200 Pa) Accuracy: ± 20 Pa from 1 -400 Pa and ± 10 Pa from 400 -1200 Pa Resolution: ≤ 0. 5 Pa. Response time: ≤ 1 s.

METEO-H Humidity device • • • METEO-H STM • • • EWST #10 Moscow, IKI Controlled by METEO-P Mass: 45 g Dimensions: 55 x 25 x 95 mm Power consumption: <25 m. W Operational temperature range: -125°C to +50°C Measurement range: 0 -100%RH in -83°C to -3°C Accuracy: ± 10% RH in temperatures greater than -70°C, and ± 20% RH in -83°C to -70°C Resolution: ≤ 1% in -83°C to -3°C Response time: ≤ 30 min for temperatures above -70°C

METEO-P and METEO-H status STMs: METEO-P: delivered METEO-H: delivered EIMs: METEO-P: ready for delivery at FMI METEO-H: ready for delivery at FMI PFMs: METEO-P: manufacturing expected to complete 5/2018 METEO-H: manufactured, ready for calibration and environmental tests at FMI EWST #10 Moscow, IKI

MTK. Wind velocity sensor. Objectives • The gas-discharge anemometer is designed to study the dynamics of the gas flow in the experimental and space meteorology and in particular for the measurement of pressure, the magnitude and direction of the velocity vector of gas flow in the boundary layer of the atmosphere of Mars. • Pressure range between 5 and 10 mm. Hg ; • Chemical composition - 95% CO 2, 4% N 2 and 1% of impurities; • Measured wind speed range from 0. 5 to 50 m/s, the change in temperature from -120 to +20 ºC. EWST #10 Moscow, IKI

MTK. Wind velocity sensor. Operation Principle of operation of gas-discharge anemometer based on the phenomenon of deviation low-current beam of low energy ions under the influence of the gas flow. To create an ion beam is used glow discharge, which can significantly increase the sensitivity of the gas-discharge anemometer compared to other methods. Anemometer has an axial symmetry and have two main parts: is a gas-discharge source of ions and II measuring part , through which passes the measured gas flow. The ion source includes a hemispherical anode 1; cathode 2 made in the form of a thin disk, with small diaphragm for extracting ions; insulator 3, to which the fixed electrodes 1 and 2. The gas discharge space I is connected to the measuring chamber II through a hole in the electrode 2. The measuring part II consists of two electrodes and four collector of ions arranged so that their centers coincide with z axis, and the planes are strictly parallel to each other and perpendicular to the axis. EWST #10 Moscow, IKI

MTK. Wind velocity sensor. Characteristics 1. The range of the measured wind speed of 0. 5 ÷ 50 m/s 2. Accuracy direction ± 1º 3. Operating pressure of 0. 3 ÷ 2. 6 k. Pa 4. Operating temperature of -70 ÷ +50 о С 5. Discharge voltage up to 1000 V 6. Discharge current less than 20 u. A 7. Accelerating electric field E 20 V/sm 8. The range of measured ion current 1… 100 n. A 9. Dimensions 50 х50 мм 10. Weight 11. Power consumption 0. 1 кг less than 0. 1 W EWST #10 Moscow, IKI