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Windows 7: Space stuff thread

16 Apr 2015   #141
xips

 
 
NASA Posts a Huge Library of Space Sounds, And You’re Free To Use Them

Space is the place. Again.

And SoundCloud is now a place you can find sounds from the US government space agency, NASA. In addition to the requisite vocal clips (“Houston, we’ve had a problem” and “The Eagle has landed”), you get a lot more. There are rocket sounds, the chirps of satellites and equipment, lightning on Jupiter, interstellar plasma and radio emissions. And in one nod to humanity, and not just American humanity, there’s the Soviet satellite Sputnik (among many projects that are international in nature).
.
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NASA Posts a Huge Library of Space Sounds, And You’re Free To Use Them
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16 Apr 2015   #142
Anak

Microsoft Community Contributor Award Recipient

Win 7 Home Premium 64bit Ver 6.1.7600 Build 7601 - SP1
 
 

Thanks John, I've been so busy I haven't been keeping up, this shows a few more seconds of the failed landing.




Hi xips, welcome aboard!
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16 Apr 2015   #143
xips

 
 

45 years after Apollo 13: Ars looks at what went wrong and why.

You've probably seen the film--but the reality is a lot more complicated.

Space industry insiders have a love-hate relationship with Ron Howard’s 1995 film Apollo 13. On one hand, the movie depicted many aspects of NASA’s Apollo program with an extremely high degree of accuracy, and it did so in a positive light. The film also helped elevate the Apollo 13 mission and the tremendous engineering work that occurred during its seven days to near-mythical status.

Source


Thanks Anak.
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.

17 Apr 2015   #144
z3r010

 

Quote   Quote: Originally Posted by Anak View Post
Thanks John, I've been so busy I haven't been keeping up, this shows a few more seconds of the failed landing.




Hi xips, welcome aboard!

Every time I watch these I feel they are taking the wrong approach, if there was a well in the center of the barge a few times wider than the rocket and about half they height, surely that would be easier to land into and stay upright.....although what would I know after all it is rocket science
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17 Apr 2015   #145
Anak

Microsoft Community Contributor Award Recipient

Win 7 Home Premium 64bit Ver 6.1.7600 Build 7601 - SP1
 
 

It would probably still tip, they would have to add some type of grappling/arm support system to hold/brace Falcon during engine shutdown.

The excessive lateral velocity mentioned here:
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26 Apr 2015   #146
xips

 
 

MESSENGER Mission News
April 25, 2015
Quote:
MESSENGER Executes Last Orbit-Correction Maneuver, Prepares for Impact MESSENGER mission controllers at the Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, Md., conducted the last of six planned maneuvers on April 24 to raise the spacecraft's minimum altitude sufficiently to extend orbital operations and further delay the probe's inevitable impact onto Mercury's surface.

With the usable on-board fuel consumed, this maneuver expelled gaseous helium -- originally carried to pressurize the fuel, but re-purposed as a propellant. Without a means of boosting the spacecraft's altitude, the tug of the Sun's gravity will draw the craft in to impact the planet on April 30, at about 8,750 miles per hour (3.91 kilometers per second), creating a crater as wide as 52 feet (16 meters).

The previous maneuver, completed on April 14, raised MESSENGER's minimum altitude above Mercury from 6.5 kilometers (4.0 miles) to 13.3 kilometers (8.3 miles). But because of progressive changes in the orbit over time, the spacecraft's minimum altitude continued to decrease.

At the start of yesterday's maneuver, at 1:23 p.m. EDT, MESSENGER was in an orbit with a closest approach of 8.3 kilometers (5.1 miles) above the surface of Mercury. With a velocity change of 1.53 meters per second (3.43 miles per hour), the spacecraft's four largest monopropellant thrusters released gaseous helium to nudge the spacecraft to an orbit with a closest approach altitude of 18.2 kilometers (11.3miles).

Mission controllers at APL verified the start of the maneuver 9.4 minutes later, when the first signals indicating spacecraft thruster activity reached NASA's Deep Space Network (DSN) tracking station in Goldstone, California. This was the third MESSENGER maneuver designed to adjust the course of the spacecraft using just helium gas.

Since MESSENGER's launch in 2004, mission engineers have been working in lockstep with KinetX Aerospace to conduct such maneuvers. KinetX, based in Simi Valley, California, is the first commercial company to navigate any spacecraft to distant planetary bodies. The team processes radiometric tracking measurements from NASA's DSN antennas to perform orbit determination for MESSENGER.

The KinetX team was key to successfully navigating the spacecraft to arrive at the planet, and then for maintaining precise knowledge of the spacecraft's position while in orbit, including these last two months during MESSENGER's "hover campaign."

"Navigating a spacecraft so close to a planet's surface had never been attempted before, but it was a risk worth taking given mission success had already been met, and the novel science observation opportunities available only at such very low altitudes," said Bobby Williams, who leads the KinetX Space Navigation and Flight Dynamics group. "The MESSENGER mission presented new technical challenges for mission design and navigation that were successfully met through close cooperation and innovation of the APL and KinetX flight operations teams."

MESSENGER Principal Investigator Sean Solomon, Director of Columbia University's Lamont-Doherty Earth Observatory, commented on yesterday's maneuver on behalf of the project's Science Team as the end of the mission draws near.

"Operating a spacecraft in orbit about Mercury, where the probe is exposed to punishing heat from the Sun and the planet's dayside surface as well as the harsh radiation environment of the inner heliosphere, would be challenge enough," he said. "But MESSENGER's mission design, navigation, engineering, and spacecraft operations teams have done much more. They've fought off the relentless action of solar gravity, made the most of every usable gram of propellant, and devised novel ways to modify the spacecraft trajectory never before accomplished in deep space. They've extended the duration of MESSENGER's orbital observations by more than a factor of four over the original plan, and an amazing set of scientific discoveries has been enabled by their creative efforts. This latest maneuver is icing on a multi-tiered cake of spectacular accomplishment. The MESSENGER mission will soon end, but its legacy of scientific knowledge and technical innovation will endure for as long as we study the planets and explore the Solar System."
Source

About MESSENGER
Quote:
MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) is a NASA-sponsored scientific investigation of the planet Mercury and the first space mission designed to orbit the planet closest to the Sun. The MESSENGER spacecraft was launched on August 3, 2004, and entered orbit about Mercury on March 18, 2011, to begin a yearlong study of its target planet. MESSENGER's first extended mission began on March 18, 2012, and ended one year later. MESSENGER is now in a second extended mission, which is scheduled to operate through April 2015. Dr. Sean C. Solomon, the Director of Columbia University's Lamont-Doherty Earth Observatory, leads the mission as Principal Investigator. The Johns Hopkins University Applied Physics Laboratory built and operates the MESSENGER spacecraft and manages this Discovery-class mission for NASA.
Website
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28 Apr 2015   #147
Anak

Microsoft Community Contributor Award Recipient

Win 7 Home Premium 64bit Ver 6.1.7600 Build 7601 - SP1
 
 
Russian Spacecraft Spinning Out of Control in Orbit, with Salvage Bid

Watch video at 00:51 for spin
Quote:
The Russian space agency Roscosmos is scrambling to regain control of a robotic Progress 59 cargo ship that appears to have suffered a serious malfunction shortly after launching into orbit early today (April 28).
Video from the Progress 59 spacecraft showed it in a dizzying spin, with the Earth and sun rapidly coming into and then out of frame. Russian flight controllers abandoned plans to attempt to dock the cargo ship with the International Space Station on Thursday (April 30), NASA spokesman Rob Navias said in a NASA TV update. That docking — originally scheduled for this morning, then pushed to Thursday — is now "indefinitely postponed," Navias said.

Source: http://Russian Spacecraft Spinning Out of Control in Orbit, with Salvage Bid | www.space.com
Quote:
Mission Control Center near Moscow will make another attempt tonight to establish contact with the cargo spacecraft Progress M-27M and to use a remote control mode of operation in order to stop the spacecraft’s erratic rotation, a source in the space rocket industry has told TASS.

Source: https://www.facebook.com/Roscosmos
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09 May 2015   #148
xips

 
 
Orbiter 2010 Space Flight Simulator

Orbiter 2010 Space Flight Simulator

From the manual
Quote:
About Orbiter

Orbiter is a space flight simulator based on Newtonian mechanics. Its playground is
our solar system with many of its major bodies - the sun, planets and moons. You
take control of a spacecraft - either historic, hypothetical, or purely science fiction.
Orbiter is unlike most commercial computer games with a space theme - there are no
predefined missions to complete (except the ones you set yourself), no aliens to de-
stroy and no goods to trade. Instead, you will get a pretty good idea about what is in-
volved in real space flight - how to plan an ascent into orbit, how to rendezvous with a
space station, or how to fly to another planet. It is more difficult, but also more of a
challenge. Some people get hooked, others get bored. Finding out for yourself is easy
- simply give it a try. Orbiter is free, so you don't need to invest more than a bit of
your spare time.

Orbiter is a community project. The Orbiter core is just the skeleton that defines the
rules of the simulated world (the physical model). A basic solar system and some
spacecraft (real and fictional) are included, but you can get a lot more with add-on
modules developed by other enthusiasts in the Orbiter community. There are add-ons
for nearly every spacecraft that ever flew (and quite a few that never got beyond the
drawing board), for many more celestial bodies in the solar system (or entirely new
fictional systems), for enhanced instruments, and much more. The Orbiter web site
contains links to many Orbiter add-on repositories.
Orbiter runs on modest hardware and does not require a joystick, although I can't imagine running any sim without a stick.


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08 Jun 2015   #149
z3r010

 


Live Video streaming by Ustream

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08 Jun 2015   #150
Anak

Microsoft Community Contributor Award Recipient

Win 7 Home Premium 64bit Ver 6.1.7600 Build 7601 - SP1
 
 

Thanks John; Decent at 1pm pdt, 4pm edt my time, 8pm UTC, not sure about BST would that be 9pm your time?

Not sure if I'll be able to watch, I'm laying a vinyl snap floor in the kitchen and we're under a tornado watch till 8pm my time. I'll put it on the punch list!

Fun, fun, fun!
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