Saturday, January 25, 2020

Communication Cap Specifications that might be used by astronauts (vyomnauts) in Gaganyaan



 
Receivers
Type Dynamic
Impedance 600 Ω @ 1KHz
Frequency Response 50-3500 Hz
Sensitivity 93-99 dB SPL
Microphone and Amplifier
Type Noise-cancelling amplified electret
Frequency Response 50-3500 Hz
Sensitivity -28 dB re: 1V/ubar at 1 KHz, 12 VDC bias
Operating Voltage 8-16 Vdc
ANR (Receives power from boom microphone connection)
Attenuation Provides up to 15dB of attenuation between 100Hz and 1500Hz
Plug Type XLR LOCKING 5 PIN CONNECTOR (Male and Female)
Cord Length 6 ft. +/-4 in. (1.8 m +/- 10 cm)
Color Black and Stainless Steel
Controls Active Noise Reduction On/Off Switch
Volume Normal/High Switch

Monday, January 20, 2020

NEtwork for space object TRacking and Analysis (NETRA) project


  • NEtwork for space object TRacking and Analysis (NETRA) is the first ISRO project with the primary objective as Space Situational Awareness (SSA).
  • The prime goal of the project is to establish a network of observational facilities and a control centre, to identify, track and catalogue space objects that threaten the safety of Indian space assets.
  • The control centre will process the tracking information from the observational network and provide accurate & timely proximity alerts to mission operations centre.
  • The location for establishing the optical telescope facility is identified as Hanle, Ladakh in INDIA.
  • It is intended that a one-meter optical telescope with a high-resolution CCD camera should provide capability of detecting space objects of size 30 cm and above in Geo-Synchronous Orbit (GSO).

Location: Hanle, Ladakh
Altitude: 4500m

The facilities are proposed to be remotely operated from BENGALURU, INDIA.

Source: ISRO