Ellen Gray

GPM Undergoes Final Functional Tests

Preparations for the launch of the NASA-JAXA Global Precipitation Measurement (GPM) Core Observatory continue on schedule at Tanegashima Space Center, Japan. Launch is scheduled for Thursday, Feb. 27 U.S. time / Friday, Feb. 28 Japan time. The Core Observatory is now encapsulated in the fairing and installed on the second stage of the H-IIA rocket in the Vehicle Assembly Building. On Feb. 19 and 20 (JST), the Core Observatory and the launch vehicle underwent the final functional test for two days. This test included power on/off operation of the launch vehicle and the spacecraft as well as
GPM Core Observatory Encapsulated into Rocket Fairing
Credit: NASA / JAXA On Feb. 11, the Core Observatory was moved into the spacecraft fairing assembly building and into the Encapsulation Hall. Final inspections and preparations were completed for the installation into the fairing, which began on Feb 13. The fairing is the part of the rocket that will contain the spacecraft at the top of the H-IIA rocket. Credit: NASA / JAXA The encapsulation process for the H-IIA is very different than for most U.S. rockets. For U.S. rockets, the fairing is usually in two pieces that close around the payload like a clamshell. To install the GPM Core...
Fairing Attached to HII-A Rocket JacobAdmin Wed, 02/19/2014
The Global Precipitation Measurement Core (GPM) Observatory is scheduled to launch on Feb. 27 (EST) from Tanegashima Space Center, Japan. The Mitsubishi Heavy Industries team finished installing the GPM mission’s Core Observatory into the fairing. The main installation occurred on Feb. 13, and all final activities and checks concluded on Feb. 16. The fairing is the top part of the rocket that will protect the spacecraft during launch. Mitsubishi Heavy Industries moved the fairing containing the GPM Core Observatory to the vehicle assembly building on Feb. 18 at Tanegashima Space Center. Inside

GPM Core Installed into Rocket Fairing

On Feb. 11, the Core Observatory was moved into the spacecraft fairing assembly building and into the Encapsulation Hall. Final inspections and preparations were completed for the installation into the fairing, which began on Feb 13. The fairing is the part of the rocket that will contain the spacecraft at the top of the H-IIA rocket. The encapsulation process for the H-IIA is very different than for most U.S. rockets. For U.S. rockets, the fairing is usually in two pieces that close around the payload like a clamshell. To install the GPM Core Observatory into the fairing of the H-IIA rocket
GPM Launch Party at NASA Goddard
NASA's Goddard Space Flight Center in Greenbelt, Md., is opening its Visitor Center to the public for a family-friendly activity-filled Global Precipitation Measurement launch party from noon to 3 p.m. EST Feb. 27, 2014. We will watch a live NASA Television broadcast of the launch of the GPM Core Observatory from Tanegashima Space Center in Japan. We will have expert presentations and family-friendly, hands-on demonstrations. The launch of the GPM Core Observatory is scheduled for no earlier than 1:07 p.m. EST. GPM is a joint mission between NASA and the Japan Aerospace Exploration Agency, and...

GPM Spacecraft Completes Fueling

The Global Precipitation Measurement mission propulsion team completed fueling the Core Observatory spacecraft on Feb. 6 in the spacecraft and fairing assembly building at the Japan Aerospace Exploration Agency's Tanegashima Space Center, Japan. Afterward the propulsion team did leak checks. GPM's fuel is hydrazine, which will power GPM's 12 thrusters that are used to maneuver the spacecraft so that it first enters then maintains its final orbit 253 miles (407 km) above Earth's surface. GPM will carry enough fuel for a minimum of five years of mission life.

GPM's Launch Vehicle Arrives at Tanegashima Space Center

The launch vehicle for the Global Precipitation Measurement, or GPM, mission's Core Observatory arrived at Tanegashima Space Center, Japan, in the pre-dawn hours of Tuesday, Jan. 21, local time. The Japanese H-IIA rocket, No. 23, has two stages that arrived by cargo freighter the previous evening. They were then trucked across the island in the middle of the night when no cars were on the road. Both stages of the Japanese H-IIA rocket arrived at Tanegashima Island, Japan on Jan. 20, 2014. Above, the first stage in its shipping container is lifted off of the cargo freighter. It and the upper
GPM Completes Propulsion System Checks, End-to-End Test, Mission Rehearsal JacobAdmin Wed, 01/22/2014
The Global Precipitation Measurement (GPM) Core Observatory had a busy week at Tanegashima Space Center, Japan. The GPM propulsion team did a thorough check of the propulsion system to prepare for fueling the spacecraft later this month. In addition, the GPM completed a full End-to-End test. End-to-End testing simulates mission conditions with the ground systems and communication systems between the spacecraft, data return functions, the Mission Operations Center and Precipitation Processing System at NASA’s Goddard Space Flight Center in Greenbelt, Md., and the Japan Aerospace Exploration
New Video Shows GPM's Journey to Japan
Pack it up, put it on a plane and fly it to Japan. It sounds simple enough, but a new video from NASA shows when your package is a satellite, it's anything but. NASA's new video, "GPM's Journey to Japan," highlights the unique shipment of the Global Precipitation Measurement mission's Core Observatory by air, land and sea. Built at NASA's Goddard Space Flight Center in Greenbelt, Md., the GPM spacecraft travelled roughly 7,300 miles (11,750 kilometers) to its launch site at Tanegashima Space Center on Tanegashima Island, Japan, where it is scheduled for liftoff on Feb. 27, 2014, at 1:07 p.m...
GPM Completes Spacecraft Alignments
After a holiday break, final tests for the GPM Core Observatory resumed on Dec. 30, 2013, with alignment measurements. The spacecraft's instruments and components, such as star trackers and thrusters, are attached to the main body in specific configurations. Spacecraft alignment measurement is analogous to alignment for the wheels of a car. The Core Observatory measurements ensure that no parts have shifted during its transportation from the United States to Japan, so they will work as expected. The GPM Core Observatory in the clean room at Tanegashima Space Center, Japan Image Credit: NASA /...