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POEM-2
PSLV Orbital Experiment Platform (POEM) also known as PSLV Stage 4 Orbital Platform (PS4-OP) is an orbital micro-gravity Testbed, test bed based on spent fourth stage of PSLV. By adding modular subsystems for power generation, communication and stabilization like Solar cell, photovoltaic cells, Telemetry and Telecommand (TT&C) package, attitude control system, data storage etc to the PSLV fourth stage, it can function as a satellite bus. This augmented stage can then host payloads for up to six months while in orbit, making it useful for qualifying components, gaining space heritage and conduct experiments in micro-gravity conditions. Usually the fourth stage of PSLV is discarded after deployment of satellite and remains in orbit for a significant duration in a passive state as a piece of Space debris#Boosters, space debris. Objective POEM or PS4-OP was conceived by Vikram Sarabhai Space Centre, VSSC/ISRO to help Indian academia and start-ups by providing a low cost platform wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of PSLV Orbital Experiment Module Flights
PSLV Orbital Experiment Module, PSLV Orbital Experiment Module (POEM) also known as PSLV Stage 4 Orbital Platform (PS4-OP) is an orbital micro-gravity test bed based on spent fourth stage of the Indian Space Research Organisation's Polar Satellite Launch Vehicle, PSLV rocket. POEM-1 In June 2022, the PSLV-C53#PSLV Orbital Experimental Module, PSLV-C53/DS-EO campaign had its PS4-OP referred as PSLV Orbital Experiment Module (POEM) and it was first PSLV fourth stage based orbital platform to be actively stabilized using eight Helium based cold gas thrusters after the primary mission and stage passivization. POEM-1 (International Designator, COSPAR ID:2022-072E, Satellite Catalog Number, SATCAT no.:52939) had additional sensors and navigational aids (4 Sun sensors, Magnetometer, MRGPD and NavIC). It generated about 150 watts of power using non-deployable, fixed solar cells wrapped around PS4 tank. Six non-separable payloads facilitated by NewSpace India Limited, NSIL and Indian Nati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PSLV-C55
The PSLV-C55 was the 57th mission of Indian Space Research Organisation's Polar Satellite Launch Vehicle (PSLV) and the 16th flight of the PSLV-CA variant.PSLV-C55/TeLEOS-2 Mission Brochurhttps://www.isro.gov.in/media_isro/pdf/Missions/PSLVC55/PSLVC55TeLEOS.pdf/ref> Launch It was launched on Saturday, 22 April 2023 at 14:19 IST / 08:49 UTC from Satish Dhawan Space Centre, Sriharikota, Andhra Pradesh, India. This was a dedicated commercial mission through NSIL with TeLEOS-2 as primary satellite and Lumelite-4 as a co-passenger satellite weighing 741 kg and 16 kg respectively. Both satellites belong to Singapore. Mission overview Primary payload: TeLEOS-2 Secondary payload: Lumelite-4 This also marks the third time that PS4 is used after satellite separations as a platform for experiments. There are non-separable payloads mounted on MSA (multi-satellite adapter). Payloads are powered on by a command after all satellites are separated. The orbital platform wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micro-gravity
Weightlessness is the complete or near-complete absence of the sensation of weight, i.e., zero apparent weight. It is also termed zero g-force, or zero-g (named after the g-force) or, incorrectly, zero gravity. Weight is a measurement of the force on an object at rest in a relatively strong gravitational field (such as on the surface of the Earth). These weight-sensations originate from contact with supporting floors, seats, beds, scales, and the like. A sensation of weight is also produced, even when the gravitational field is zero, when contact forces act upon and overcome a body's inertia by mechanical, non- gravitational forces- such as in a centrifuge, a rotating space station, or within an accelerating vehicle. When the gravitational field is non-uniform, a body in free fall experiences tidal forces and is not stress-free. Near a black hole, such tidal effects can be very strong, leading to ''spaghettification''. In the case of the Earth, the effects are minor, especially ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automatic Identification System
The automatic identification system (AIS) is an automatic tracking system that uses transceivers on ships and is used by vessel traffic services (VTS). When satellites are used to receive AIS signatures, the term ''Satellite-AIS'' (S-AIS) is used. AIS information supplements marine radar, which continues to be the primary method of collision avoidance for water transport. Although technically and operationally distinct, the ADS-B system is analogous to AIS and performs a similar function for aircraft. Information provided by AIS equipment, such as unique identification, coordinate system, position, course (navigation), course, and speed, can be displayed on a screen or an electronic chart display and information system (ECDIS). AIS is intended to assist a vessel's watchstanding officers and allow sea, maritime authorities to track and monitor vessel movements. AIS integrates a standardization, standardized very high frequency, VHF transceiver with a positioning system such a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RM-81 Agena
The RM-81 Agena () was an American rocket upper stage and satellite bus which was developed by Lockheed Corporation initially for the canceled WS-117L reconnaissance satellite program. Following the division of WS-117L into SAMOS and Corona for image intelligence, and MIDAS for early warning, the Agena was later used as an upper stage, and an integrated component, for several programs, including Corona reconnaissance satellites and the Agena Target Vehicle used to demonstrate rendezvous and docking during Project Gemini. It was used as an upper stage on the Atlas, Thor, Thorad and Titan IIIB rockets, and considered for others including the Space Shuttle and Atlas V. A total of 365 Agena rockets were launched between February 28, 1959 and February 1987. Only 33 Agenas carried NASA payloads and the vast majority were for DoD programs. On some missions, the payload was built directly into the Agena, which provided it with electric power, communications and three-axis stabilizati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poem Of Sidi Boushaki
The Poem of Sidi Boushaki () is a poem of arabic grammar written by the theologian and linguist Sidi Boushaki (1394-1453). About Sidi Boushaki He is Abu Ishaq Ibrahim bin Fayed al-Zawawi, an exegete of Quran, jurist and linguist, born in the Soumâa village near the town of Thénia from the works of Djurdjura in 796 AH and died in the year 857 AH, and was buried next to Meraldene River in the Zawiyet Sidi Boushaki within the Khachna Mountains. He has several books, the most famous of which are: * An exegesis of the Quran called "Tafsir al-Zawawi" (). * Three commentaries of the Mukhtasar Khalil on Maliki fiqh (). * "Talkhis al-Talkhis", is an explanation of the book Talkhis al-Miftah on rhetoric, meanings and statement (). Description The ''Poem of Sidi Boushaki'' is considered as one of the most famous books of the Arabic tongue in the Islamic world that dealt with grammar by explaining the prose text of Expressing the Arabic grammar rules written by Ibn Hisham al-Ans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five Borders of the oceans, oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is bounded by the continents of Asia and Australia in the west and the Americas in the east. At in area (as defined with a southern Antarctic border), the Pacific Ocean is the largest division of the World Ocean and the hydrosphere and covers approximately 46% of Earth's water surface and about 32% of the planet's total surface area, larger than its entire land area ().Pacific Ocean . ''Encyclopædia Britannica, Britannica Concise.'' 2008: Encyclopædia Britannica, Inc. The centers of both the Land and water hemispheres, water hemisphere and the Western Hemisphere, as well as the Pole of inaccessi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PSLV-C58
The PSLV C-58 was the 60th flight of the Indian Space Research Organisation's Polar Satellite launch Vehicle. It carried the XPoSAT mission along with rideshare payloads. Payload Besides XPoSat, the rocket carried 10 other payloads on PSLV Orbital Experiment Module (POEM) - 3. Alongside them, two payloads by Indian Space Research Organisation's (ISRO) Vikram Sarabhai Space Centre (VSSC) and one by the Physical Research Laboratory (PRL) were manifested for the flight. On PSLV-C58/XPoSat campaign, POEM-3 hosted ten payloads weighing ~145 kg cumulatively. PSLV fourth stage was lowered to 350 km orbit at 9.6° inclination after deploying XPoSat to reach the POEM-3 operational orbit. For power generation and storage it will again have flexible solar panels in conjunction with 50Ah Li-Ion battery and will be three-axis stabilized. Payloads hosted on POEM-3 are following, seven of them facilitated by IN-SPACe and three are by ISRO, # Radiation Shielding Experimental Mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
XPoSat
The X-ray Polarimeter Satellite (XPoSat) is an Indian Space Research Organisation (ISRO)-manufactured space observatory to study polarisation of cosmic X-rays. It was launched on 1 January 2024 on a PSLV rocket, and it has an expected operational lifespan of at least five years. The telescope was developed by the Raman Research Institute (RRI) in close collaboration with the U R Rao Satellite Centre (URSC). Per ISRO, this mission will complement the efforts of US space agency NASA, which launched its Imaging X-ray Polarimetry Explorer (IXPE) in 2021 by observing space events across a broad energy range of 2–30 keV. Overview Studying how radiation is polarised gives away the nature of its source, including the strength and distribution of its magnetic fields and the nature of other radiation around it. XPoSat will study the 50 locally brightest (known) sources in the universe consisting of, variously, pulsars, black hole X-ray binaries, active galactic nuclei, neutr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indian National Space Promotion And Authorisation Centre
Indian National Space Promotion and Authorisation Centre (IN–SPACe) is a single-window autonomous agency under the Department of Space of the Government of India. The establishment of IN–SPACe was announced in June 2020 by the Minister of State for Space Jitendra Singh, with the Union Cabinet approving its creation. In the same month Secretary (Space) and chairperson of the Indian Space Research Organisation, K. Sivan, said that it would take up to sixmonths to operationalize IN–SPACe, with the Department of Space handling its functions in the meantime. History Space programme in India has been developed over a period of more than five decades with a strong focus on application driven programmes and bringing space to the services of the common man. In the process, it has become one of the six largest space agencies in the world. The Indian Space Research Organisation (ISRO) maintains one of the largest fleets of GEO communication and LEO remote sensing satellites, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
