Global Change Observation Mission - Climate "SHIKISAI" (GCOM-C)

About Global Change Observation Mission - Climate "SHIKISAI" (GCOM-C)

Forecasting future global climate

The purpose of the GCOM (Global Change Observation Mission) project is the global, long-term observation of Earth's environment. GCOM is expected to play an important role in monitoring both global water circulation and climate change, and examining the health of Earth from space. Global and long-term observations (10-15 years) by GCOM will contribute to an understanding of water circulation mechanisms and climate change.

GCOM consists of two satellite series, the GCOM-W and GCOM-C. The GCOM-C, carrying a SGLI (Second generation GLobal Imager), conducts surface and atmospheric measurements related to the carbon cycle and radiation budget, such as clouds, aerosols, ocean color, vegetation, and snow and ice.

About Advanced Land Observing Satellite-2 "DAICHI-2" (ALOS-2)....JAPAN AEROSPACE

About Advanced Land Observing Satellite-2 "DAICHI-2" (ALOS-2)
     

The Earth needs a health check

The Advanced Land Observing Satellite-2 (ALOS-2) is follow-on mission from the "DAICHI", which contributed to cartography, regional observation, disaster monitoring, and resource surveys. ALOS-2 will succeed this mission with enhanced capabilities.
Specifically, JAXA is conducting research and development activities to improve wide and high-resolution observation technologies developed for DAICHI in order to further fulfill social needs.

GSLV-MkIII-D2/GSAT-29 Mission

GSAT-29 is configured around ISRO’s Enhanced I-3K Bus and will be the payload for second developmental flight of GSLV-MkIII. It carries Ka x Ku multi-beam and optical communication payloads for the first time. The mission targets for Village Resource Centres (VRC) in rural areas to bridge the digital divide. GSLV-MkIII-D2/GSAT-29 Mission is scheduled to be launched during the second half of 2018.

Chandrayaan-2 Mission...future mission of ISRO

GSLV-F10/Chandrayaan-2 Mission

Chandrayaan-2, India's second mission to the Moon is a totally indigenous mission comprising of an Orbiter, Lander and Rover. After reaching the 100 km lunar orbit, the Lander housing the Rover will separate from the Orbiter. After a controlled descent, the Lander will soft land on the lunar surface at a specified site and deploy a Rover.

The mission will carry a six-wheeled Rover which will move around the landing site in semi-autonomous mode as decided by the ground commands. The instruments on the rover will observe the lunar surface and send back data, which will be useful for analysis of the lunar soil.

The Chandrayaan-2 weighing around 3290 kg and would orbit around the moon and perform the objectives of remote sensing the moon. The payloads will collect scientific information on lunar topography, mineralogy, elemental abundance, lunar exosphere and signatures of hydroxyl and water-ice.

GSLV-F10/Chandrayaan-2 Mission is planned during second half of  2018.

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GSAT-11 UPCOMING MISSION OF ISRO

          

GSAT-11 is a multi beam high throughput communication satellite operating in Ka and Ku-bands employing a new bus. It provides 32 user beams in Ku-band and 8 gateway beams in Ka-band. The payload includes Ka x Ku-band forward link transponders and Ku x Ka band return link transponders.

The satellite is planned to be launched by Ariane from Kourou, French Guiana in second half of 2018.

Isro to launch PSLV-C42 Mission

PSLV-C42 Mission

PSLV-C42 Successfully Launches two foreign satellites from Satish Dhawan Space Centre (SDSC), SHAR, Sriharikota on September 16, 2018. This mission was designed to launch two earth observation satellites, NovaSAR and S1-4 (together weighing nearly 889 kg) of M/s Surrey Satellite Technologies Limited (SSTL), United Kingdom under commercial arrangement with Antrix Corporation Limited, Department of Space. Both satellites were injected into 583 km Sun Synchronous Orbit.
NovaSAR is a S-Band Synthetic Aperture Radar satellite intended for forest mapping, land use & ice cover monitoring, flood & disaster monitoring.
S1-4 is a high resolution Optical Earth Observation Satellite, used for surveying resources, environment monitoring, urban management and for the disaster monitoring.

Related Images

Humans In Space Lands safely in Kazakhstan

Space Station Crew Returns to Earth, Lands Safely in Kazakhstan

    

Three members of the Expedition 56 crew returned safely to Earth Thursday from the International Space Station, where they spent months providing hands-on support for scientific research in low-Earth orbit, working to keep the orbiting laboratory fully operational, and performing three spacewalks.

Three members of the Expedition 56 crew, NASA astronauts Drew Feustel and Ricky Arnold, and cosmonaut Oleg Artemyev of the Russian space agency Roscosmos, returned to Earth after months abroad the International Space Station and landed safely at 7:44 a.m. EDT (5:44 p.m. in Kazakhstan) southeast of the remote town of Dzhezkazgan in Kazakhstan.

Credits: NASA

NASA astronauts Drew Feustel and Ricky Arnold, and cosmonaut Oleg Artemyev of the Russian space agency Roscosmos landed at 7:44 a.m. EDT (5:44 p.m. in Kazakhstan) southeast of the remote town of Zhezkazgan in Kazakhstan.

The crew completed hundreds of experiments during its 197-day expedition in space. Highlights included an investigation to study ultra-cold quantum gases using the first commercial European facility for microgravity research, and a system that uses surface forces to accomplish liquid-liquid separation.

The crew also welcomed five cargo spacecraft, which delivered several tons of supplies and research experiments. The 14th SpaceX Dragon flight was the first to arrive at the station, in April, shortly after the three crew members did, bringing supplies and equipment. It was followed by the 15th Dragon, which arrived in July with additional supplies. The ninth Northrop Grumman Cygnus resupply spacecraft arrived in May before the end of Expedition 55. In August, a Russian Progress completed a record rapid rendezvous of less than four hours. And, in September, the seventh Japanese Konotouri cargo craft arrived just a week before the Expedition 56 trio departed for home.

Members of the Expedition 56 crew landing back on Earth.

Both Feustel and Arnold participated in dozens of educational downlink events while in space as part of NASA’s Year of Education on Station, reaching more than 200,000 students in 29 states. Feustel now has logged more than 226 days in space on three spaceflights, and Arnold spent more than 209 days during the course of two missions.

The duo ventured outside the space station on three spacewalks to perform maintenance and upgrades during Expeditions 55 and 56. Their work included replacing and upgrading external cameras, including those that will facilitate the approach and docking of the Boeing Starliner and SpaceX Crew Dragon commercial crew spacecraft when they begin launching soon from American soil. The spacewalkers also replaced components of the space station’s cooling system and communications network, and installed new wireless communication antennas for external experiments. Feustel has accumulated 61 hours and 48 minutes over nine career spacewalks, and ranks second overall among American astronauts. Arnold has 32 hours and 4 minutes during five career spacewalks.

Artemyev conducted one spacewalk, with fellow cosmonaut Sergey Prokopyev, to manually launch four small technology satellites and install an experiment called Icarus onto the Russian segment of the space station. The spacewalk timed out at 7 hours and 46 minutes, the longest in Russian space program history. Artemyev now has spent 366 days in space on his two flights.

Expedition 57 continues station research and operations with a crew comprised of Serena Aunon-Chancellor of NASA, Alexander Gerst of ESA (European Space Agency) and Sergey Prokopyev of Roscosmos. Gerst assumed command of the station as Feustel prepared to depart.

NASA astronaut Nick Hague and Roscosmos cosmonaut Alexey Ovchinin are scheduled to launch Thursday, Oct. 11 for a same-day arrival, adding to the crew of Expedition 57.

Learn more about the International Space Station at:

https://www.nasa.gov/station

International Space Station

Statement on International Space Station Leak Investigation

Below is NASA’s statement about the International Space Station Leak Investigation:

On Aug. 29, 2018 a small hole was discovered on the International Space Station. This resulted in a pressure leak. The hole has been identified and fixed by space station crew.

Russian media recently reported that General Director Rogozin said the hole was not a manufacturing defect. Ruling out a manufacturing defect indicates that this is an isolated issue which does not categorically affect future production.

This conclusion does not necessarily mean the hole was created intentionally or with mal-intent. NASA and Roscosmos are both investigating the incident to determine the cause. The International Space Station Program is tentatively planning a spacewalk in November to gather more information.

On October 11, American Astronaut Nick Hague and Russian Cosmonaut Alexey Ovchinin will launch to the International Space Station on a Russian Soyuz MS-10 spacecraft from the Baikonur Cosmodrome in Kazakhstan. Administrator Bridenstine is scheduled to attend the launch and plans to meet with Mr. Rogozin. This will be their first in-person meeting. They had a telephone call on September 12 during which they discussed the International Space Station leak.

For more information about the ISS, visit:

https://www.nasa.gov/station

      

NASA Space Mission

NASA Television to Air Launch of Nasa Astronaut on First Space Mission    

At the Baikonur Cosmodrome in Kazakhstan, Expedition 57 crew members Alexey Ovchinin of the Russian space agency Roscosmos (left) and Nick Hague of NASA (right) pose for pictures in front of their Soyuz MS-10 spacecraft during final prelaunch training Sept. 26, 2018. Ovchinin and Hague will launch Oct. 11, 2018, in the Soyuz from the Baikonur Cosmodrome for a six-month mission on the International Space Station.

Credits: NASA/Victor Zelentsov

Editor's Note: Advisory updated Oct. 8 to reflect earlier hatch opening coverage time.

Astronaut Nick Hague, who joined NASA’s astronaut corps in 2013, is preparing to launch Thursday, Oct. 11, on his first space mission – a six-month stay on the International Space Station. The launch and arrival at the space station will air on NASA Television and the agency’s website.

Hague and Alexey Ovchinin of the Russian space agency Roscosmos will launch from the Baikonur Cosmodrome in Kazakhstan at 4:40 a.m. EDT (2:40 p.m. Kazakhstan time) on a four-orbit, six-hour journey to dock to the station at 10:44 a.m.

Less than two hours after arrival, hatches between the Soyuz and the station will open and they will join Expedition 57 Commander Alexander Gerst of ESA (European Space Agency, NASA Flight Engineer Serena Auñón-Chancellor and Roscosmos Flight Engineer Sergey Prokopyev, who arrived at the station in June.

Complete coverage of launch and docking activities are as follows:

• 3:30 a.m. – Launch coverage begins
• 10 a.m. – Docking coverage begins
• 12:15 p.m. – Hatch opening and welcome coverage

Beginning Tuesday, Oct. 9, video of the crew’s prelaunch activities in Baikonur will air on NASA TV leading up to the launch.

The crew members of Expedition 57 will continue work on hundreds of experiments in biology, biotechnology, physical science and Earth science aboard the International Space Station, humanity’s only permanently occupied microgravity laboratory.

3. Error Handling

The next feature we going to cover are the changes to Error Handling. Handling fatal errors in the past has been next to impossible in PHP. A fatal error would not invoke the error handler and would simply stop your script. On a production server, this usually means showing a blank white screen, which confuses the user and causes your credibility to drop. It can also cause issues with resources that were never closed properly and are still in use or even locked.

In PHP 7, an exception will be thrown when a fatal and recoverable error occurs, rather than just stopping the script. Fatal errors still exist for certain conditions, such as running out of memory, and still behave as before by immediately stopping the script. An uncaught exception will also continue to be a fatal error in PHP 7. This means if an exception thrown from an error that was fatal in PHP 5 goes uncaught, it will still be a fatal error in PHP 7.

I want to point out that other types of errors such as warnings and notices remain unchanged in PHP 7. Only fatal and recoverable errors throw exceptions.

In PHP 7, Error and Exception both implement the new Throwable class. What that means is that they basically work the same way. And also, you can now use Throwable in try/catch blocks to catch both Exception and Error objects. Remember that it is better practice to catch more specific exception classes and handle each accordingly. However, some situations warrant catching any exception (such as for logging or framework error handling). In PHP 7, these catch-all blocks should catch Throwable instead of Exception.