|
Pragyan (Chandrayaan-3)
''Pragyan'' (from ) is a lunar rover that forms part of Chandrayaan-3, a lunar mission developed by the Indian Space Research Organisation (ISRO). A previous iteration of the rover, also named Pragyan, was launched as part of Chandrayaan-2 on 22 July 2019 and was destroyed with its lander, '' Vikram'', when it crashed on the Moon on 6 September.Vikram lander located on lunar surface, wasn't a soft landing: Isro. ''Times of India''. 8 September 2019. Chandrayaan-3 launched on 14 July 2023, carrying new versions of ''Vikram'' and ''Pragyan'', which successfully landed near the |
Chandrayaan 3
Chandrayaan-3 ( ) is the third mission in the Chandrayaan programme, a series of lunar-exploration missions developed by the Indian Space Research Organisation (ISRO). The mission consists of a ''Vikram'' lunar lander and a ''Pragyan'' lunar rover, as replacements for the equivalents on Chandrayaan-2, which had crashed on landing in 2019. The spacecraft was launched on July 14, 2023, at 14:35 IST from the Satish Dhawan Space Centre (SDSC) in Sriharikota, India. It entered lunar orbit on 5 August, and touched down near the lunar south pole, at 69°S, on 23 August 2023 at 18:04 IST (12:33 UTC). With this landing, ISRO became the fourth national space agency to successfully land on the Moon, after the Soviet space program, NASA and CNSA. The lander was not built to withstand the cold temperatures of the lunar night, so it was shut down at sunset over the landing site, twelve days after landing. The orbiting propulsion module remained operational and was repurposed for scien ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lunar South Pole
The lunar south pole is the southernmost point on the Moon. It is of interest to scientists because of the lunar water, occurrence of water ice in Crater of eternal darkness, permanently shadowed areas around it. The lunar south pole region features craters that are unique in that the near-constant sunlight does not reach their interior. Such craters are cold trap (astronomy), cold traps that contain fossil records of hydrogen, water ice, and other volatiles dating from the Formation and evolution of the Solar System, early Solar System. In contrast, the lunar north pole region exhibits a much lower quantity of similarly sheltered craters. Geography The lunar south pole is located on the center of the polar Antarctic Circle (80°S to 90°S).Lunar South Pole. NASA. 2017. Accessed on 16 July 20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sriharikota
Sriharikota () is a barrier island off the Bay of Bengal coast located in the Shar Project settlement of Tirupati district in Andhra Pradesh, India. It houses the Satish Dhawan Space Centre, one of the two satellite launch centres in India (the other being Thumba Equatorial Rocket Launching Station, Thiruvananthapuram). Indian Space Research Organisation (ISRO) launches satellites using multistage rockets such as the Polar Satellite Launch Vehicle and the Geosynchronous Satellite Launch Vehicle from Sriharikota. Sriharikota was selected by ISRO because of its proximity to the equator, it gives extra centripetal force from the rotation of Earth. Location Sriharikota is partly located in Sullurpeta mandal and partly located in Tada mandal in Tirupati District in Andhra Pradesh. The island separates Pulicat Lake from the Bay of Bengal. The nearest town and railway station is Sullurpeta which is 16 km west of Sriharikota and nearest city is Tirupati. A 16 km elevate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Second Launch Pad
Satish Dhawan Space Centre – SDSC (formerly Sriharikota Range – SHAR) is the primary spaceport of the Indian Space Research Organisation (ISRO), located in Sriharikota, Tirupati district, Andhra Pradesh. The spaceport is located on an island off the east coast of India, surrounded by Pulicat Lake and the Bay of Bengal. The distance of Sriharikota from Chennai is . The Centre currently has three functioning launch pads used for launching sounding rockets, polar satellites and geosynchronous satellites. India's Lunar exploration probes Chandrayaan-1, Chandrayaan-2, Chandrayaan-3, Mars Orbiter Mission, solar research mission Aditya-L1 and space observatory XPoSat were also launched from SDSC. Originally called Sriharikota Range (SHAR), the centre was renamed on 5 September 2002 as a tribute to ISRO's former chairman Satish Dhawan with retaining its original acronym and is referred as SDSC-SHAR. History Sriharikota island was chosen in 1969 for a satellite launching statio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Lunar Crater That The Pragyan Rover Of Chandrayaan-3 Encountered On 27th August 2023, As Seen By The Navgation Camera
''The'' is a grammatical article in English, denoting nouns that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of the archaic pronoun ''thee'') ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brushless DC Electric Motor
A brushless DC electric motor (BLDC), also known as an electronically commutated motor, is a synchronous motor using a direct current (DC) electric power supply. It uses an electronic controller to switch DC currents to the motor windings, producing magnetic fields that effectively rotate in space and which the permanent magnet rotor follows. The controller adjusts the phase and amplitude of the current pulses that control the speed and torque of the motor. It is an improvement on the mechanical commutator (brushes) used in many conventional electric motors. The construction of a brushless motor system is typically similar to a permanent magnet synchronous motor (PMSM), but can also be a switched reluctance motor, or an induction (asynchronous) motor. They may also use neodymium magnets and be outrunners (the stator is surrounded by the rotor), inrunners (the rotor is surrounded by the stator), or axial (the rotor and stator are flat and parallel). The advantages of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rocker-bogie
The rocker-bogie system is the Suspension (vehicle), suspension arrangement developed in 1988 for use in NASA's Mars rover ''Sojourner (rover), Sojourner'', and which has since become NASA's favored design for rovers. It has been used in the 2003 Mars Exploration Rover mission robots ''Spirit (rover), Spirit'' and ''Opportunity (rover), Opportunity'', on the 2012 Mars Science Laboratory, Mars Science Laboratory (MSL) mission's rover ''Curiosity (rover), Curiosity'', the Mars 2020 rover ''Perseverance_(rover), Perseverance'' and ISRO's Chandrayaan-3 rover Pragyan (Chandrayaan-3), Pragyan in 2023. The "rocker" part of the suspension comes from the rocking aspect of the larger, body-mounted linkage on each side of the rover. These rockers are connected to each other and the vehicle chassis through a Differential (mechanical device), differential. Relative to the chassis, the rockers will rotate in opposite directions to maintain approximately equal wheel contact. The chassis mainta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IIT Kanpur
The Indian Institute of Technology Kanpur (IIT- Kanpur or IIT-K) is a public institute of technology located in Kanpur, Uttar Pradesh, India. As an Indian Institute of Technology (IIT), it was declared an Institute of National Importance by the Government of India under the Institutes of Technology Act. IIT Kanpur has been occasionally ranked among the best academic institutions in India. As of January 2025, at least 17 Padma Shri, 4 Padma Bhushan, 1 Padma Vibhushan, and 33 Shanti Swarup Bhatnagar Prize recipients have been affiliated with IIT Kanpur as alumni or faculty members. History IIT Kanpur was established by an Act of Parliament in 1960 by the Government of India. The institute was started in December 1959 in a room in the canteen building of the Harcourt Butler Technological University at Agricultural Gardens in Kanpur. In 1963, the institute moved to its present location, on the Grand Trunk Road near Kalyanpur locality in Kanpur district. The campus, which is p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Elevation Model
A digital elevation model (DEM) or digital surface model (DSM) is a 3D computer graphics representation of elevation data to represent terrain or overlaying objects, commonly of a planet, Natural satellite, moon, or asteroid. A "global DEM" refers to a discrete global grid. DEMs are used often in geographic information systems (GIS), and are the most common basis for digitally produced Relief mapping (computer graphics), relief maps. A digital terrain model (DTM) represents specifically the ground surface while DEM and DSM may represent tree top Canopy (biology), canopy or building roofs. While a DSM may be useful for Landscape planning, landscape modeling, Urban planning, city modeling and visualization applications, a DTM is often required for flood or drainage modeling, Land-use planning, land-use studies, geological applications, and other applications, and in planetary science. Terminology There is no universal usage of the terms ''digital elevation model'' (DEM), ''di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monochrome
A monochrome or monochromatic image, object or palette is composed of one color (or values of one color). Images using only shades of grey are called grayscale (typically digital) or black-and-white (typically analog). In physics, monochromatic light refers to electromagnetic radiation that contains a narrow band of wavelengths, which is a distinct concept. Application Of an image, the term monochrome is usually taken to mean the same as black and white or, more likely, grayscale, but may also be used to refer to other combinations containing only tones of a single color, such as green-and-white or green-and-red. It may also refer to sepia displaying tones from light tan to dark brown or cyanotype ("blueprint") images, and early photographic methods such as daguerreotypes, ambrotypes, and tintypes, each of which may be used to produce a monochromatic image. In computing, monochrome has two meanings: * it may mean having only one color which is either on or off (a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megapixel
In digital imaging, a pixel (abbreviated px), pel, or picture element is the smallest addressable element in a Raster graphics, raster image, or the smallest addressable element in a dot matrix display device. In most digital display devices, pixels are the smallest element that can be manipulated through software. Each pixel is a Sampling (signal processing), sample of an original image; more samples typically provide more accurate representations of the original. The Intensity (physics), intensity of each pixel is variable. In color imaging systems, a color is typically represented by three or four component intensities such as RGB color model, red, green, and blue, or CMYK color model, cyan, magenta, yellow, and black. In some contexts (such as descriptions of camera sensors), ''pixel'' refers to a single scalar element of a multi-component representation (called a ''photosite'' in the camera sensor context, although ''wikt:sensel, sensel'' is sometimes used), while in yet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Department Of Space
The Department of Space (DoS) is an Indian government department responsible for administration of the Indian space programme. It manages several agencies and institutes related to space exploration and space technologies. The Indian space programme under the DoS aims to promote the development and application of space science and technology for the socio-economic benefit of the country. It includes two major satellite systems, INSAT for communication, television broadcasting and meteorological services, and Indian Remote Sensing Satellites (IRS) system for resources monitoring and management. It has also developed two satellite launch vehicles, the Polar Satellite Launch Vehicle (PSLV) and the Geosynchronous Satellite Launch Vehicle (GSLV) to place IRS and INSAT class satellites in orbit. History In 1961, the Government of India and then Prime Minister Jawaharlal Nehru entrusted the responsibility for space research and for the peaceful use of outer space to the Department ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
