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Introduction

Hello World! This is Manish Iyer. And this, is my very own little space in the cyberworld to rant about anything and everything under the sun...This will also contain a section for physics and aerospace...something that I've always loved and will continue to do so till the end. So go ahead...sit back and enjoy the ride!

Sunday, June 24, 2007

SHUTTLE ATLANTIS CREW RETURNS HOME AFTER SUCCESSFUL MISSION

The space shuttle Atlantis and its crew are home after completing a 14-day journey of more than 5.8 million miles in space. Atlantis' STS-117 mission successfully increased the power capability of the International Space Station, preparing for the future delivery of European and Japanese laboratories.

Atlantis' Commander Rick Sturckow, Pilot Lee Archambault and mission specialists Jim Reilly, Patrick Forrester, Steven Swanson, John "Danny" Olivas and Sunita Williams landed at Edwards Air Force Base, Calif., Friday at 3:49 p.m. EDT.


Atlantis' crew attached the new S3/S4 solar array truss segment on the right side of the station's backbone, deployed a new set of solar arrays, and retracted the Port 6 starboard solar array back into its box. The station has a new look with two symmetrical solar panels mounted on each end of the station's truss.

Reilly, Olivas, Swanson and Forrester, with the help of crewmates, made four spacewalks to complete the construction tasks. They activated the truss segment and the Solar Alpha Rotary Joint, which allows the new arrays to track the sun, and helped fold the Port 6 array. During the third spacewalk, the crew repaired a 4-by-6 inch raised corner of a thermal blanket on the port side Orbital Maneuvering System pod. Aerodynamic forces during Atlantis' ascent lifted the blanket.

While the crew worked in space, ground teams were troubleshooting a problem with Russian computers that help control the station's attitude. Russian specialists worked closely with teams in the United States to recover the computer capabilities.

NASA astronaut and station Flight Engineer Clayton Anderson, who launched with the crew aboard Atlantis, remained on the station. He is scheduled to return home aboard space shuttle Discovery on a mission targeted for launch in October. Anderson replaced Williams, who set a new record for a single, long-duration spaceflight by a
woman with 195 days. She arrived at the station in December 2006 aboard space shuttle Discovery.

STS-117 was the 118th space shuttle flight, the 21st flight to the station, the 28th flight for Atlantis and the first of four missions planned for 2007.

Several inspections in orbit revealed no critical damage, and Atlantis' thermal protection system was declared safe for re-entry on flight day 13. Weather concerns prevented the crew from returning to NASA's Kennedy Space Center, Fla., the primary end-of-mission landing site. In 7-10 days, Atlantis will be transported approximately 2,500 miles from California to Florida on the back of a modified 747 jumbo jet. Once at Kennedy, Atlantis will be separated from the aircraft to
begin immediate processing for its next flight, targeted for December
2007.

With Atlantis and its crew safely home, the stage is set for the next phase of International Space Station assembly. Preparations continue for space shuttle Endeavour's launch, targeted for August, on the STS-118 mission to deliver the S5 truss segment to the station.

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Thursday, June 21, 2007

Bad Weather Pushes STS-117 Landing to Friday

The STS-117 crew is getting an extra day in space thanks to poor weather conditions at Kennedy Space Center, Fla. Space shuttle Atlantis has five landing opportunities available Friday, with the first at 2:18 p.m. EDT in Florida.

Thunderstorms in the vicinity of Kennedy forced flight controllers to wave off both opportunities Thursday. Controllers and the Spaceflight Meteorology Group will closely monitor forecasts for Friday’s opportunities in Florida and at Edwards Air Force Base in California.

The first opportunity Friday is on Orbit 218 and calls for a deorbit burn at 1:12 p.m. The second is on Orbit 219, with the deorbit burn at 2:50 p.m. and landing at 3:55 p.m. at Kennedy.

If Florida weather does not cooperate, three opportunities are available at Edwards. The first is on Orbit 219. Thursday afternoon, the crew adjusted Atlantis’ orbit to set the stage for this opportunity, which has the deorbit burn occurring at 2:43 p.m. and landing at 3:49 p.m.

The second opportunity for the California base is on Orbit 220. The deorbit burn would occur at 4:18 p.m. and landing at 5:23 p.m. The final opportunity is one orbit later which calls for the deorbit burn to occur at 5:56 p.m. and landing at 6:59 p.m.

Friday’s weather forecast for Kennedy calls for the threat of thunderstorms in the area and high winds are a possibility at Edwards. Opportunities are also available Saturday.

Atlantis launched June 8 and arrived at the International Space Station on June 10. While at the orbital outpost, the crew installed the Starboard 3 and 4 truss segment and conducted four spacewalks to activate it. During the third spacewalk, the crew repaired an out of position thermal blanket on the left orbital maneuvering system pod.

Atlantis also delivered a new station crew member, Flight Engineer Clayton Anderson. He replaced astronaut Suni Williams, who is the new record holder for a long-duration single spaceflight for a woman. She arrived at the station in December with STS-116.

STS-117 is the 118th shuttle mission and 21st mission to visit the space station. The next mission, STS-118, is slated to launch in August.

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Wednesday, June 20, 2007

Shuttle Astronauts Prepare for Return to Earth

During its scheduled final full day in space, the STS-117 crew prepared for landing. Two opportunities are available on Thursday for Space Shuttle Atlantis to land at Kennedy Space Center, Fla.

Wednesday’s preparations included stowing equipment and checking out systems that will be used to deorbit Atlantis and begin the descent to Earth. Also, the seven crew members took time out of their schedules to talk with reporters from NBC News, ABC News and CNN Live.


The first landing opportunity available is on Orbit 202, which calls for the deorbit burn to occur 12:50 p.m. EDT Thursday with a 1:55 p.m. touchdown. The final opportunity of the day is on the next orbit. It begins with the deorbit burn at 2:25 p.m. and ends with a 3:30 p.m. landing.

Weather forecasts call for a possibility of thunder showers in the area. Flight controllers and forecasters with the Spaceflight Meteorology Group will continue to monitor the weather at Kennedy.

The STS-117 crew members are returning home from a construction mission to the International Space Station. They installed the Starboard 3 and 4 (S3/S4) truss segment and conducted four spacewalks to activate it.

During the third spacewalk, the crew repaired an out of position thermal blanket on the left orbital maneuvering system pod.

Atlantis also delivered a new station crew member, Flight Engineer Clayton Anderson. He replaced astronaut Suni Williams, who is the new record holder for a long-duration single spaceflight for a woman. She arrived at the station in December with STS-116.

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Tuesday, June 19, 2007

Atlantis Leaves Station, Begins Journey Home

The STS-117 crew members ended their stay at the International Space Station Tuesday when they undocked Space Shuttle Atlantis at 10:42 a.m. EDT. Attention now turns to landing, scheduled for 1:54 p.m. Thursday.

The STS-117 crew members ended their stay at the International Space Station Tuesday when they undocked Space Shuttle Atlantis at 10:42 a.m. EDT. Attention now turns to landing, scheduled for 1:54 p.m. Thursday.

Following undocking, Pilot Lee Archambault flew Atlantis 360 degrees around the station to collect video and imagery of the station and its newly expanded solar wings. He then completed the final separation engine burn at 12:28 p.m.

Later in the day, Archambault and Mission Specialists Patrick Forrester and Steven Swanson used the shuttle robot arm and the 50-foot long Orbiter Boom Sensor System to conduct a late inspection of the thermal protection system.

The crew will spend Wednesday preparing for landing. Atlantis’ first landing opportunity is at 1:54 p.m. Thursday at Kennedy Space Center, Fla.

During its stay at the station, which began June 10, the STS-117 crew continued the on-orbit construction of the station with the installation of the Starboard 3 and 4 (S3/S4) truss segment.

The crew installed the truss June 11 and conducted four spacewalks to activate the S3/S4 and assist in the retraction of solar array on the Port 6 truss. During the third spacewalk, the crew repaired an out of position thermal blanket on the left orbital maneuvering system pod.

Atlantis also delivered a new station crew member, Flight Engineer Clayton Anderson. He replaced astronaut Suni Williams, who is the new record holder for a long-duration single spaceflight for a woman. She arrived at the station in December with STS-116.

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Monday, June 18, 2007

STS-117, Expedition 15 Close Hatches; Atlantis to Undock Tuesday

The STS-117 crew bid farewell Monday to the Expedition 15 crew before the hatches closed at 6:51 p.m. EDT between Space Shuttle Atlantis and the International Space Station. Attention now turns to Atlantis’ undocking from the station 10:42 a.m. Tuesday.


The STS-117 crew members are wrapping up a stay in which they continued the on-orbit construction of the station with the installation of the Starboard 3 and 4 (S3/S4) truss segment. The crew installed the truss June 11 and conducted four spacewalks to activate the S3/S4 and assist in the retraction of solar array on the Port 6 truss. During the third spacewalk, the crew repaired an out –of-position thermal blanket on the left orbital maneuvering system pod.

Atlantis also delivered a new station crew member, Flight Engineer Clayton Anderson. He replaced astronaut Suni Williams, who is the new record holder for a long-duration single spaceflight for a woman. She arrived at the station in December with STS-116.

Before Atlantis begins the journey home, Commander Rick Sturckow and Pilot Archambault will perform a fly-around to allow crew member collect video and imagery of the station and its newly expanded solar wings.

Atlantis is scheduled to land at Kennedy Space Center, Fla., at 1:54 EDT Thursday.

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Sunday, June 17, 2007

STS-117 Astronauts Conclude Fourth Spacewalk

STS-117’s final spacewalk came to an end Sunday at 6:54 p.m. EDT. During the 6-hour, 29-minute orbital stroll, Mission Specialists Patrick Forrester and Steven Swanson performed tasks to activate the International Space Station’s new truss segment and completed work that will help future spacewalkers.

Forrester and Swanson began the excursion at 12:25 p.m. and quickly went to work preparing the Starboard 3 and 4 (S3/S4) truss segment for operation. The S3/S4 was installed onto the station on June 11. Most of the S3/S4 work centered on activating the Solar Alpha Rotary Joint (SARJ), which will allow the S3/S4 arrays to track the Sun.


Early in the spacewalk, Forrester verified the installation of the Drive Lock Assembly 2, one of two mechanisms that will drive rotation of the SARJ, while Swanson installed a TV camera and its support structure. Then, the duo removed the final launch restraints on the SARJ before removing a keel pin and drag link to clear the path for the station’s mobile transporter.

The get-ahead tasks included the installation of a computer network cable onto the Unity module and the removal of a Global Positioning System antenna. The two astronauts also finished the installation of a piece of debris shielding on the Destiny laboratory.

Mission Specialist Jim Reilly coordinated the spacewalk and Pilot Lee Archambault operated the robot arm. Forrester and Swanson conducted STS-117’s second spacewalk. Reilly and Mission Specialist Danny Olivas conducted the other two. Sunday’s spacewalk is the 87th devoted to station assembly and maintenance.

Attention now turns to Atlantis' departure and the events leading up to undocking. The STS-117 crew is scheduled to exit the station Monday before the hatches close at 6:23 p.m. EDT. Atlantis is slated to undock at 10:42 a.m. Tuesday.

However, mission managers may decide to add a day of docked operations for STS-117 if the Russian navigation computers do not perform adequately during a test of Russian attitude control capabilities Monday morning at 10:28 a.m.


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Russian Navigation Computers in Stable Condition

The Russian computers aboard the International Space Station are back in near normal, stable operation. Two of three channels of each computer are operating. A third channel is believed to be functioning well, but currently in standby.

The Mission Control Center in Moscow has restarted all Russian systems except the Elektron oxygen generation system, which has been powered but not yet started.

Flight controllers are planning to test Russian thrusters on Monday as they maneuver the station and Space Shuttle Atlantis to a water dump attitude.

The Russian navigation computers provide one method of backup attitude control and orbital altitude adjustments. The station’s control moment gyroscopes are the complex’s primary attitude control system. The shuttle’s propulsion system also provides a backup attitude control system for the complex.



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Astronaut Suni Williams Sets the Record Straight, and Long

Call it a great leap forward for women in space.

After six years of people, three of whom have been women, living in space aboard the International Space Station, the female time-in-space endurance record set 11 years ago has been broken.


NASA Astronaut Sunita Williams set a new record this morning at 12:47 CDT for the longest duration spaceflight by a woman. At that time, Williams surpassed Shannon Lucid’s mark of 188 days, 4 hours set in 1996.

Williams began her record-setting flight when she launched with the crew of STS-116 in December 2006. The Massachusetts native remained onboard the station as a member of the Expedition 14 crew and then joined the Expedition 15 crew in April. Her spaceflight will come to a close when she returns to Earth aboard Space Shuttle Atlantis with the STS-117 crew.

Although this is only her first spaceflight, Williams also became the record-holder for most hours outside a spacecraft by a female by completing four spacewalks during Expedition 15 with a total time of 29 hours, 17 minutes.

“It was very exciting to watch her spacewalks and to watch her accumulate more spacewalk time than any other female in the universe,” said Lucid, who set the previous female space duration record while flying aboard the Russian Mir Space Station. “These [long-term] flights are providing the needed confidence so that some day in the near future we can depart low-Earth orbit and head on out to Mars.”

During her stay on orbit, Williams has worked with experiments across a wide variety of fields, including human life sciences, physical sciences and Earth observation as well as education and technology demonstrations.

Some of these experiments give scientists critical insight into the effects of weightlessness on our bodies while others show ways to prevent effects we already know about like muscle and bone loss.

In addition to rigorous exercise, Williams also collected and stored her blood while in space to add to an ongoing study on nutrition, another key element of living in space for long stretches of time.

The results of this study may impact nutritional requirements and food systems developed for future ventures in space. “Her mission has been critically important to our overall space program,” said NASA Astronaut Eileen Collins, another female pioneer in spaceflight. Collins became the first woman to command a spaceflight mission during the STS-93 mission on Space Shuttle Columbia.

“She truly is a space marathoner who shows young women everywhere that there's a place in the space program for them.” If her stay in space concludes as scheduled, with her return on Atlantis on June 21, Williams will have flown a total of 194 days in space.

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Thursday, June 14, 2007

Astronauts Fold Arrays, Prepare for Spacewalk

The STS-117 and Expedition 15 crews moved through a busy day aboard the International Space Station and Space Shuttle Atlantis. They were retracting solar arrays and preparing for STS-117’s third spacewalk.


The STS-117 crew resumed retraction of the starboard P6 solar array at 12:25 p.m. Thursday. The crew and flight controllers decided to conclude the efforts just before 4 p.m. with about half of the 31½ array bays retracted. The crew will resume retraction activities Friday with the help of the spacewalkers if needed.

The schedule for STS-117 Mission Specialists Jim Reilly and Danny Olivas includes a review of procedures and the practice of techniques they will use during the spacewalk set to begin at 1:38 p.m. EDT Friday. The first task of the extravehicular activity is the repair of a thermal blanket that pulled away from the orbital maneuvering system pod on the rear of the shuttle.

About an hour and 20 minutes before Thursday morning’s scheduled wakeup call, the crews were awakened by a false alarm on the station. The alarm was triggered by the restart of Russian navigation computers that provide backup attitude control and orbital altitude adjustments.

Flight controllers continue efforts to bring the computers back up to full operation. For now, the station’s control moment gyroscopes are handling attitude control, with the shuttle’s propulsion system providing backup.

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Wednesday, June 13, 2007

Spacewalkers Prep SARJ for Action

Astronauts Patrick Forrester and Steve Swanson continued work to activate the International Space Station’s Starboard 3 and 4 (S3/S4) truss segment during STS-117’s second spacewalk. The 7-hour, 16-minute excursion wrapped up at 9:44 p.m. EDT Wednesday.


The spacewalking duo first assisted with the retraction of the starboard solar array on the Port 6 (P6) truss. They left one launch restraint attached on the S3/S4 Solar Alpha Rotary Joint (SARJ). Flight controllers want to take a closer look at a drive lock assembly on the SARJ. After the launch restraint is removed on an upcoming spacewalk, the rotary joint will allow the S3/S4 arrays to track the sun as the station orbits Earth.

13 of the P6’s 31.5 array bays were retracted Wednesday, and the crew will send commands Thursday to retract the remaining bays. Before moving on to SARJ, Forrester and Swanson “fluffed” the array to allow easier retraction on Thursday.

The retraction of the P6 array clears the line of sight for the S3/S4 arrays to track the sun and sets the stage for the P6’s relocation by a future shuttle crew from atop the station to the end of the Port 5 truss.

Mission Specialist Jim Reilly coordinated the spacewalk, and Pilot Lee Archambault operated the station’s robotic arm. Two more spacewalks are scheduled for STS-117. The next is set for Friday.

In other activities, Expedition 15 Commander Fyodor Yurchikhin and Flight Engineers Oleg Kotov and Clayton Anderson continued to transfer cargo between the station and Space Shuttle Atlantis.

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Tuesday, June 12, 2007

Station Spreads New Wings; Crew Preps for Spacewalk

The International Space Station spread its new set of wings Tuesday, and the STS-117 crew members prepared for the mission’s next spacewalk.


The solar arrays on the newly installed Starboard 3 and 4 (S3/S4) truss segment deployed to their full length with the assistance of the STS-117 crew. The S3/S4 was attached to the station Monday before the start of STS-117’s first spacewalk, during which astronauts began activating the truss. The arrays will increase the station’s ability to generate power when they go online.

Tuesday’s deployment activities occurred in steps, beginning about 11:43 a.m. EDT. The forward-facing array on the S3/S4 was first deployed to its length of 115 feet. The procedure was repeated for the rear-facing array which was fully deployed about 1:58 p.m.

Then, the STS-117 astronauts enjoyed a few hours of off duty time before beginning preparations for the mission’s second spacewalk on Wednesday. Mission Specialists Steve Swanson and Pat Forrester will continue the activation of the S3/S4 and assist in the retraction of the starboard solar array on the Port 6 (P6) truss during the spacewalk. Wednesday’s excursion is scheduled to begin at 2:03 p.m.

The P6 will move from its location atop the station to the end of the Port 5 truss during a future mission.

Late in the workday, STS-117 crew members participated in interviews with CBS News and El Paso, Texas, TV stations KFOX-TV and KTSM-TV.


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Monday, June 11, 2007

NASA Adds Two Days and a Fourth Spacewalk to Mission

During a post-mission management briefing held 8 p.m. EDT, John Shannon, chair of the Mission Management Team, announced NASA will extend the mission two extra days and add a fourth spacewalk to the mission.


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Astronauts Finish First STS-117 Spacewalk

Mission Specialists Jim Reilly and John “Danny” Olivas successfully completed tasks during STS-117’s first spacewalk to activate the International Space Station’s newest component.

The 6-hour, 15-minute excursion concluded at 10:17 p.m. EDT.

Reilly and Olivas went to work after the Starboard 3 and 4 (S3/S4) truss segment was installed onto the station. They made power, data and cooling connections between the station and the S3/S4. The spacewalkers also released locks and launch restraints on the segment’s solar arrays and prepared its radiator and rotary joint for operation.

The radiator was deployed during the spacewalk. The solar arrays will be unfurled Tuesday. STS-117 Pilot Lee Archambault and Expedition 15 Flight Engineer Oleg Kotov were at the controls of the station’s robotic arm during the spacewalk. STS-117 Mission Specialist Patrick Forrester coordinated the spacewalk.

The start of the spacewalk and the attachment of the truss were delayed due to the saturation of the control moment gyros that control the attitude of the station. Flight controllers performed standard procedures to bring the CMGs back to normal operations.

S3/S4 activation activities will continue during STS-117’s second spacewalk, slated to take place Wednesday afternoon.



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Atlantis Docks With Space Station; Spacewalk Set for Monday

After a busy Sunday in which the STS-117 crew arrived at the International Space Station, attention has turned to the mission’s first spacewalk. The excursion, which will focus on the on-orbit assembly of the station, is slated to begin at 1:53 p.m. EDT Monday.

Space Shuttle Atlantis and the STS-117 crew arrived at the station Sunday at 3:36 p.m., delivering a new truss segment and crew member to the orbital outpost. The STS-117 crew entered the station for the first time after the hatches between the shuttle and station opened at 5:04 p.m.


The STS-117 astronauts quickly jumped into joint operations with the station’s Expedition 15 crew. One of the first major tasks was the station crew rotation. STS-117 Mission Specialist Clayton Anderson switched places with Expedition 15 Flight Engineer Suni Williams, who wrapped up a six-month tour of duty as a station crew member.

The crews also began preparations for Monday’s installation of the Starboard 3 and 4 (S3/S4) truss segment and the spacewalk. The crews used the shuttle robotic arm to lift the S3/S4 out of Atlantis’ payload bay and to hand it off to the station arm.

The S3/S4, which contains a new set of solar arrays, is scheduled to be attached to the station prior to the start of the spacewalk conducted by STS-117 Mission Specialists John “Danny” Olivas and Jim Reilly. Olivas and Reilly are spending the night in the station’s Quest Airlock in preparation for the spacewalk.

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