Satellite News

Satellites are big. They cost a lot of money. At least that's the impression a couple of University of Maryland-College Park students had when they applied for an placement to help construct a satellite instrument with scientists at the NASA Goddard Space Flight Center in Greenbelt, Md. As the pair quickly discovered, nothing could have been farther from the truth.

Firefly satellite in orbit video from the animation.

To their astonishment, the satellite that Saman Kholdebarin and Lida Ramsey helped to develop was literally the size of a football. "I had no idea you could make these satellites so small," Kholdebarin said, recalling his surprise when his Goddard mentors explained the project to him. "I was astounded."

The small satellite, with a big mission, is appropriately named "Firefly." Sponsored by the National Science Foundation, the pint-sized satellite will study the most powerful natural particle accelerator on Earth - lightning - when it launches from the Marshall Islands aboard an Air Force Falcon 1E rocket vehicle next year. In particular, Firefly will focus on Terrestrial Gamma-ray Flashes, a little understood phenomenon first discovered by NASA's Compton Gamma-Ray Observatory in the early 1990s.

Commander Alexander Skvortsov and Flight Engineers Tracy Caldwell Dyson and Mikhail Kornienko conducted Soyuz descent training in advance of their departure on September 23. Once they undock, Expedition 25 will begin its increment with Commander Doug Wheelock and Flight Engineers Shannon Walker and Mikhail Kornienko continuing their stay on the International Space Station.

All six crew members spent some time Friday discussing handover of responsibilities in the event of an emergency before crew departure. The ceremonial Change-of-Command from Skvortsov to Wheelock takes place Wednesday.

Three new station crew members prepared for their October launch with a news conference in Star City, Russia. They then traveled to Moscow for traditional pre-launch activities at the Kremlin Wall. Flight Engineers Scott Kelly, Alexander Kaleri and Oleg Skripochka will join Expedition 25 when they dock in the new Soyuz TMA-01M spacecraft.

Hurricane activity this week captured the crew’s attention as they videotaped storms in both the Atlantic and Pacific Oceans. Hurricane Julia was videotaped following Hurricane Igor in the Atlantic Ocean. Hurricane Karl was videotaped in the Pacific Ocean as it reached the western coast of Mexico near Veracruz. The crew also performed eye exams, transferred cargo from the new ISS Progress 39 resupply ship and stowed gear from the MARES, or Muscle Atrophy Research and Exercise System.

NASA, the U.S. Agency for International Development, the U.S. Environmental Protection Agency (USEPA) and their partners today celebrate the first anniversary of the air quality initiative within SERVIR that delivers in-situ, satellite-based, and modeled air quality data to forecasters, researchers, broadcasters, and communities throughout Mesoamerica and the Caribbean.

The SERVIR initiative integrates satellite observations, ground-based data and forecast models to monitor and forecast environmental changes and to improve response to natural disasters. SERVIR enables scientists, educators, project managers and policy implementers to better respond to a range of issues including disaster management, agricultural development, biodiversity conservation and climate change.

Endorsed by governments of Central America and Africa and principally supported by NASA and the US Agency of International Development, a strong emphasis is placed on partnerships to fortify the availability of searchable and viewable earth observations, measurements, animations, and analysis. A SERVIR coordination office and rapid prototyping facility is located at the NASA Marshall Space Flight Center in Huntsville, Alabama. Regional SERVIR nodes are located at the Water Center for the Humid Tropics of Latin America and the Caribbean in Panama and the Regional Center for Mapping of Resources for Development based in Kenya.

Preparations are under way inside the Vehicle Assembly Building at NASA's Kennedy Space Center to move the space shuttle Discovery to Launch Pad 39A beginning September 20. Liftoff the STS-133 mission is targeted for November 1 at 4:40 p.m. on an 11-day flight to the International Space Station.
The crew is in the fixed-base simulator today at their training home at NASA's Johnson Space Center rehearse rendezvous and docking procedures and the installation of ELC-4 that will follow hatch opening on Flight Day 3 of the mission.‪

Herman Posada sits at the controls and flies his airplane. But he's not in the airplane! He's at a ground station miles away, using a joystick and video monitors to control the vehicle. Herman is a NASA research pilot who flies unmanned aerial vehicles. These remotely piloted, full-scale aircraft are used more and more for research into advanced aeronautics systems and for capturing images and data in dangerous conditions such as wildfires or hurricanes. On Thursday, September 23, you can ask Herman questions in both English and Spanish about what it's like to fly these unique, full-scale aircraft.

NASA's Ikhana, an unmanned Predator B modified for non-military missions, carries instruments for environmental Earth science studies and is used for advanced aircraft systems research and technology development. The Global Hawk unmanned aircraft has been very busy this hurricane season, flown by Herman and another pilot into and above hurricanes to collect data.

For more details:http://www.nasa.gov/connect/chat/uas_pilot_chat.html

In August 1960, NASA launched its first communications satellite, Echo 1. Fifty years later, NASA has achieved another first by placing the ARTEMIS-P1 spacecraft into a unique orbit behind the moon, but not actually orbiting the moon itself. This type of orbit, called an Earth-Moon libration orbit, relies on a precise balancing of the Sun, Earth, and Moon gravity so that a spacecraft can orbit about a virtual location rather than about a planet or moon. The diagrams below show the full ARTEMIS-P1 orbit as it flies in proximity to the moon.

ARTEMIS-P1 is the first spacecraft to navigate to and perform station keeping operations around the Earth-Moon L1 and L2 Lagrangian points. There are five Lagrangian points associated with the Earth-Moon system. The two points nearest the moon are of great interest for lunar exploration.
These points are called L1 (located between the Earth and Moon) and L2 (located on the far side of the Moon from Earth), each about 61,300 km (38,100 miles) above the lunar surface. It takes about 14 to 15 days to complete one revolution about either the L1 or L2 point. These distinctive kidney-shaped orbits are dynamically unstable and require weekly monitoring from ground personnel. Orbit corrections to maintain stability are regularly performed using onboard thrusters.

The ARTEMIS mission implementation and operation represents a joint effort between NASA Goddard Space Flight Center in Greenbelt, Md., the Jet Propulsion Laboratory in Calif., and the University of California, Berkeley, Space Sciences Laboratory.

For details:http://www.nasa.gov/mission_pages/themis/news/artemis-orbit.html

Journalists are invited to cover space shuttle Discovery’s last move from the Vehicle Assembly Building (VAB) to Launch Pad 39A on Sept. 20 at NASA’s Kennedy Space Center in Florida. Six astronauts are set to launch aboard the shuttle on Nov. 1. The

STS-133 mission to the International Space Station is the final scheduled flight for Discovery before it is retired.

Live coverage of Discovery's rollout will air on NASA Television beginning at 8 p.m. EDT. NASA TV’s Video File will broadcast highlights of the move.

Discovery's first motion out of the VAB to the pad is scheduled for 8 p.m. The shuttle's 3.4- mile journey atop a giant crawler-transporter is expected to take approximately six hours. Activities include an 8 p.m. photo opportunity of the move followed by an interview availability at 8:30 p.m. with Discovery Flow Director Stephanie Stilson. Media must arrive at Kennedy's news center by 7:30 p.m. for the rollout photo opportunity.

NASA has released its Strategic Sustainability and Performance Plan (SSPP) as part of a government-wide effort to achieve goals without compromising the planet's resources.

NASA's SSPP focuses on reducing greenhouse emissions, preventing pollution, increasing water use efficiency and constructing and maintaining high performance, sustainable buildings. The plan follows President Obama's executive order to increase federal effectiveness in pursuing these "green" goals and includes guidance for evaluating effectiveness and providing updates and review.

"NASA is committed to a policy of sustainability that will be part of the work practices and mindset of the entire agency," said Olga Dominguez, assistant administrator for the Office of Strategic Infrastructure at NASA Headquarters in Washington.NASA submitted its plan to the Council on Environmental Quality.

Amateur astronomers using backyard telescopes were the first to detect two small objects that burned up in Jupiter’s atmosphere on June 3 and Aug. 20.

Professional astronomers at NASA and other institutions followed up on the discovery and gathered detailed information on the objects, which produced bright spots on Jupiter. The object that caused the June 3 fireball was estimated to be 30 to 40 feet in diameter - comparable in size to asteroid 2010 RF12 that flew by Earth on Sept. 8.

The June 3 fireball released five to 10 times less energy than the 1908 Tunguska meteoroid, which exploded 4-6 miles above Earth’s surface with a powerful burst that knocked down millions of trees in a remote part of Russia. Scientists continue to analyze the Aug. 20 fireball, but think it was comparable to the June 3 object.

“Jupiter is a big gravitational vacuum cleaner,” said Glenn Orton, an astronomer at NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, Calif., and co-author of a paper that will appear online Thursday in Astrophysical Journal Letters. “It is clear now that relatively small objects that are remnants from the formation of the solar system 4.5 billion years ago still hit Jupiter frequently. Scientists are trying to figure out just how frequently.”

NASA completed a historic day for its hurricane research on Thursday as it put the Global Hawk over Earl, marking the first time the unmanned drone flew over a fully formed hurricane.

The Global Hawk also flew in concert with NASA’s DC-8 during the DC-8’s fourth and final research flight to Earl. Both planes are outfitted with a suite of highly advanced instruments that scientists hope will bring new insight into how hurricanes form and intensify.

Thursday marked the first day of the Genesis and Rapid Intensification Processes (GRIP) experiment when two NASA aircraft involved were flying and studying a storm at the same time. The experiment was designed to take advantage of having multiple aircraft above a storm at once, in order to observe hurricanes and tropical storms in as many facets as possible.

As Earl changed over the course of the week, the hurricane turned into an almost ideal test bed for GRIP. The DC-8 flew to Earl four times, including twice from St. Croix in order to reach it when it was farther east. GRIP scientists designed the mission in order to capture a hurricane either as it was forming or as it was strengthening or fizzling. And the Earl flights delivered, allowing scientists to observe the storm rapidly intensifying earlier in the week and then collapsing to a degree later in the week.

A Sunday flight from St. Croix put the DC-8 over Earl as it intensified from a Category 1 to a Category 2. And Monday’s flight from Ft. Lauderdale allowed the DC-8’s instruments to observe what was happening as Earl went from a Category 3 to a Category 4. One of GRIP’s key goals is to help scientists understand why and how some hurricanes rapidly intensify. These flights collected important data toward that end, scientists said.

“What happened?” said GRIP mission scientist Ed Zipser of the University of Utah. “The storm continued to intensify in spite of that. And we need to know why.”

Then during Thursday’s flight, as Earl spun toward North Carolina but also lost strength, GRIP scientists made measurements from the storm as its eye wall collapsed and as it dropped from a Category 3 to a Category 2 hurricane. At first blush, it appeared that wind shear played a role in breaking up the storm.

NASA's Research and Technology Studies, or Desert RATS, will make its 13th trip to the desert this fall to test rovers, habitats and robots that could be used in future exploration missions.

A media day for the tests will be held on Wednesday, Sept. 15, to allow reporters to observe the activities. Interested news media should contact Brandi Dean at 281-483-5111 by Thursday, Sept. 9. Access to the test site is restricted, so media must be pre-registered. NASA also requires a letter of assignment on company letterhead for credentials.

The desert tests offer a chance for a NASA-led team of engineers, astronauts and scientists from across the country to test concepts for future missions. The location offers a good test area for future destinations of exploration missions.

NASA will demonstrate a variety of hardware during this year's test, including:

The public was involved in test preparation by helping NASA decide what areas should be explored. NASA posted online several possibilities online and allowed members of the public to vote on the most promising. Several thousand ballots were cast and 67 percent favored a location that appeared to be home of several overlapping lava flows.

NASA has set media accreditation deadlines for the November space shuttle flight to the International Space Station. Shuttle Discovery and six astronauts are targeted to launch on the STS-133 mission on Nov. 1 from NASA's Kennedy Space Center in Florida.

Deadlines also have been set for journalists who want to cover the shuttle's move from its processing facility to the launch pad and practice countdown. Reporters must apply for credentials to attend the launch or cover the mission from other NASA centers. To be accredited, reporters must work for verifiable news-gathering organizations. No substitutions of credentials are allowed at any NASA facility.

The 11-day mission will be the 35th flight to the station and the 39th and final scheduled flight for Discovery. The mission will deliver and install the Permanent Multipurpose Module, the Express Logistics Carrier 4, an external platform that holds large equipment, and critical spare components for the station. Discovery also will deliver Robonaut 2, or R2, to become a permanent resident of the station as the first human-like robot in space.

NASA's Office of Protective Services recently made changes to the policy for foreign national processing. All journalists who are lawful permanent residents, have dual or multiple U.S. citizenship, or are U.S. citizens representing international media outlets will have their credential applications processed in the same way as U.S. citizens who represent domestic media.

Additional time may be required to process accreditation requests by journalists from certain designated countries. Designated countries include those with which the United States has no diplomatic relations, countries on the State Department's list of state sponsors of terrorism, those under U.S. sanction or embargo, and countries associated with proliferation concerns.