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GSLV (MK-II)

CHANDRAYAAN-2. Fairing. Lander (Russia). Inter-modular adopter (Russia). Rover (India). Orbiter (India). An Indo-Russian Collaborative mission. An Orbiter, Lander, Rover Mission. Launch Vehicle, Orbiter, Rover (India); Lander (Russia). GSLV (MK-II). CHANDRAYAAN-2. MISSION SCENARIO

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GSLV (MK-II)

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  1. CHANDRAYAAN-2 Fairing Lander (Russia) Inter-modular adopter (Russia) Rover (India) Orbiter (India) An Indo-Russian Collaborative mission An Orbiter, Lander, Rover Mission Launch Vehicle, Orbiter, Rover (India);Lander (Russia) GSLV (MK-II)

  2. CHANDRAYAAN-2 MISSION SCENARIO  GSLV (Mk-II) will place an orbital flight vehicle (similar to Chandrayaan-1), carrying a soft landing system up to Lunar Transfer Trajectory (LTT).  Orbiter & Lander-Rover will be maneuvered separately for lunar polar insertion. The landing system will be commanded for its controlled decent from polar orbit . Following landing, the motorized rover with scientific instruments and tools will be released on the lunar surface. Most comprehensive Geochemical and Geophysical Investigation of the Moon with more than a dozen payloads on Orbiter (5), Rover (2) and Lander

  3. CHANDRAYAAN-2: Orbiter Payloads Fore optics Detector 350 Convex grating Tertiary mirror Primary mirror Imaging IR Spectrometer (IIRS) Terrain Mapping Camera-2 (0.8 to 5 µm) coverage Lunar Mineralogy; will cover H2O, OH and thermal regime [Improved version of Hyper-Spectral Imager (HySI) [0.4 to 0.9 µm] flown on CH-1] Stereo-viewing & 3D imaging of lunar surface from a 200km orbit

  4. CHANDRAYAAN-2: Orbiter Payloads 1350mm 85 170 170 85 1010mm L and S band Synthetic Aperture Radar L-band (1.25 GHz) and S-Band ( 2.0-2.2 GHz) Lunar observations with a selectable resolution of 2m, 5m or 10m, and a swath of 10km. To operate in Circular Polarization mode and Linear Polarimetric mode. Radiating patch arrangement for Integrated L-band and S-band antenna Objective: To study lunar sub-surface layers for presence of water ice (based on circular polarization) and other components (e.g. Ilmenite, host of solar wind 3He), based on modeled dielectric constant

  5. CHANDRAYAAN-2: Orbiter Payloads Chandrayaan Large Area Soft X-ray Spectrometer [CLASS] Silicon Drift Detector (SDD) SCD & Solar X-ray Monitor Soft X-ray (1-8 keV) spectrometer for global mapping of major elements (Mg, Al, Si, Ca, Fe, …) Neutral and Ion Mass Spectrometer (NIMS) A detail study of the lunar exosphere and environment and possible time variability

  6. Robotic arm/Rover base Electronics Alpha source Alpha source LIBS Sub-Unit Si (SDD) X-Ray detector <3cm Lunar surface Lunar surface Samp: R 3-4 cm CHANDRAYAAN-2: Rover Payloads Alpha Particle Induced X-ray Spectrometer (APIXS) Laser Induced Breakdown Spectroscopy Alpha particle and X rays from a radioactive source strikes lunar surface Measure energy spectra of emitted X rays via PIXE and XRF Spectroscopy of volatiles produced by laser ablation of lunar surface material Both instruments are primarily intended for chemical characterization of localized lunar surface material. LIBS can detect traces of water vapour, if released from lunar soils

  7. CHANDRAYAAN-2: Orbiter Payloads Detector Head Power Package Lens Assembly Mirror Housing Camera Electronics Aft Nadir Fore Terrain Mapping Camera-2 (Schematic and Sub-System) • Efforts towards reducing weight & power • New configurations • Lens weight optimization • New components • New Power system Stereo-viewing & 3D imaging of lunar surface from a 200km orbit

  8. CHANDRAYAAN-2: Orbiter Payloads IIRS Schematic Status * Detailed configuration * Implementation options & PDR Completed Imaging Infrared Spectrometer (IIRS) Lunar Spectroscopy [up to 5.0 m] (first data set) Mineral maps at high spatial and spectral resolution Study of mare volcanism, variations in basaltic composition, mantle heterogeneity at basin and local scale Signatures of hydroxyl (OH) and water (H2O) molecules (IR corrections from same data set)

  9. Configuration Sensor Swept Charge Devices (SCD) = 64 cm2 Collimator Gold coated Cu collimator Aluminum filter (0.2μm) Door for radiation protection one time operation contains calibration sources CHANDRAYAAN-2: Orbiter Payloads -5 deg C CLASS: Chandrayaan Large Area Soft X-ray Spectrometer Surface geochemical mapping of Mg, Al, Si, Ca, Ti and Fe (e2V Technologies) 10

  10. CHANDRAYAAN-2: Orbiter Payloads SDD Module for XSM XSM Analog electronics Solar X-ray Monitor Monitoring Solar flare X-ray Intensity (over a wide range) Stability at high count rate Specifications Two packages: Sensor & Electronics

  11. CHANDRAYAAN-2: Orbiter Payloads Az 31.0° 8.5° 11.20(L-band), 5.60(S-band) EL.BEAM 200 km Physical Beam 9.50 Beam corresponding to data window 350 10km 30km 95km 125km Imaging geometry of Chandrayaan-2 SAR Dual frequency (L- and S-band) SAR Improved target detection and information Incidence angle range from 10 to 35 Slant range Resolution: 80 m to 2m-75m Full Polarimetry High spatial resolution data Transmitters (L & S-band SAR Antenna Receiver, Frequency Generator and Digital systems L-band SSPA (TRANSMITTER)- H&V POL

  12. CHANDRAYAAN-2: Orbiter Payloads ChACE-2 : Characterization of Lunar Neutral Atmosphere & its time variations Repeat of ChACE-1 in Chandrayaan-1 with a larger mass range Mass range : 1-300 amu Detector : CEM Resolution : ~ 0.5 amu Dynamic range : 109 Payload Mass : < 4 kg Payload Power : ~30 W

  13. CHANDRAYAAN-2: Rover Payloads Alpha Particle X-ray Spectrometer (APXS) Robotic arm Electronics head Alpha source Science objective: Elemental composition of Lunar surface soil and rocks ~35±10 mm SDD Sample surface R: 3 cm Schematic of rover (APXS on the arm) Schematic of the APXS sensor head Test results with Detector at -350C, yielded required resolution at Fe peak

  14. CHANDRAYAAN-2: Rover Payloads Laser Induced Breakdown Spectroscopy LIBS: Proto-Model (top-view) Science objective:Qualitative & Quantitative analysis of lunar composition including volatiles Bottom-view Detection of hydrated minerals by observing the H emission line at 656 nm.

  15. Thank you for your kind attention Fairing

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