The Soyuz capsule carrying three astronauts successfully docked with ISS late yesterday.
The way is now clear for Cygnus to berth with ISS this weekend.
Posted from New Mexico as we drive on the interstate. (Diane is driving while I surf.)
A Soyuz rocket successfully launched three astronauts today for a six month mission to ISS.
They plan to dock later today, thereby clearing the way for the Cygnus berthing this weekend.
Because of the scheduled arrival of a Soyuz manned capsule to ISS on Wednesday, NASA and Orbital Sciences have decided to delay Cygnus’s rendezvous and berthing until Saturday.
As far as I can tell, the software glitch and the delay are relatively minor issues, being handled with due care and caution, and will not prevent the eventual docking. More important, they are not serious enough to require any major design changes to Cygnus, which means the freighter will be able to begin operational flights soon after this demo flight is completed.
A software conflict today forced Orbital Sciences to delay the rendezvous of Cygnus with ISS to Tuesday.
SpaceX will delay its planned December launch of Dragon to ISS in order to complete upgrades to the capsule.
It was already expected that this December launch would be delayed anyway because NASA wants SpaceX to complete two launches of the upgraded Falcon 9 rocket before using it to launch Dragon to ISS.
Orbital Sciences has now posted a detailed outline of Cygnus’s flight schedule for the next few days.
It appears the spacecraft continues to do well as it continues its tests prior to approaching ISS.
Another Russian space glitch: The astronauts who returned to Earth from ISS on September 10 were flying blind.
The altitude sensors apparently failed soon after undocking. Since the Soyuz craft is not piloted but returns to Earth automatically, this failure was not crucial. That it happened, however, sends another worrisome signal about declining Russian quality control standards. If this system failed, why couldn’t another more crucial one fail as well?
The competition heats up: Orbital Sciences plans to roll Antares and Cygnus to the launchpad tomorrow for its Tuesday launch.
The competition heats up: Orbital Sciences has finished loading its Cygnus capsule and has closed the hatch for next Tuesday’s launch.
After 166 days in orbit, three astronauts safely returned to Earth this evening in a Soyuz capsule.
The competition heats up: NASA has put Orbital Sciences on notice that, assuming its demo cargo mission to ISS in two weeks is a success, the company might have to do it again as soon as December.
SpaceX is supposed to fly its next cargo mission first, but NASA thinks that flight will be delayed because of development issues with the upgraded Falcon 9 rocket.
Despite the astronauts’ success on ISS in recreating the spacesuit water leak, NASA engineers still do not know its cause.
What is unstated about this problem is that, because we used to have a big space shuttle with lots of cargo capacity, the American spacesuit was designed to be maintained and repaired on the ground. In the past the next space shuttle flight would have brought a new spacesuit to the station while taking this defective suit back to Earth for analysis and repair. Now that we don’t have a big space shuttle, our complex spacesuits are far more difficult to troubleshoot.
The solution? First, keep it simple. The Russians, limited by the capacity of their Progress and Soyuz capsules, made their Orlan spacesuit very simple and easy to use.
Second, get as many redundant replacements of the shuttle operating as soon as possible.
Astronauts on ISS have successfully recreated the water leak in the defective spacesuit that almost drowned an astronaut last month.
They now have a very good idea of the components that caused the failure, and will be able to replace these with new parts. The next step will be to test the suit under the same conditions with the new parts.
Formation flying in space, without propellants.
Electromagnetic formation flight (EMFF) gets around this propellant problem by turning the satellites in a formation into electromagnets. By using a combination of magnets and reaction wheels, spacecraft in formation can move and change their attitude and even spin without propellant. Satellites can change their polarity to attract or repel one another, turn, or shift their relative positions in any manner that doesn’t require changing the center of gravity for the entire formation.
A prototype is going to be tested inside ISS in the near future.
The competition heats up: Orbital Sciences has confirmed a September 15 launch date for the first Cygnus capsule mission to ISS.
The Russians have begun a six-hour spacewalk today on ISS to prepare the station for the arrival of a new Russian module.
The article also outlines the continuing investigation into the American spacesuit problem from the last American spacewalk, where an astronaut’s suit began to fill with water from an unknown source. It appears they have pinpointed the most likely cause of the leak, but appear to be having problems recreating the failure.
Update: The Russian spacewalk is over, all tasks completed.
Assuming the first demo berthing of Orbital Sciences’ Cygnus capsule to ISS goes well in September, NASA has now scheduled the subsequent cargo missions of Cygnus and Dragon for December and January respectively.
The second link above also provides some interesting details about the cargo that Dragon will carry in January.
Japan’s fourth unmanned cargo freighter to ISS was successfully berthed to the station today.
Japan today successfully launched its fourth unmanned cargo freighter to ISS.
The rendezvous and berthing is scheduled for August 9. Besides supplies, the HTV-4 carries more equipment for NASA’s robotic refueling demonstration project on ISS.
On Friday an astronaut on ISS controlled and steered a rover on Earth.
While zipping around Earth several hundred miles above the planet’s surface, European Space Agency astronaut Luca Parmitano drove a 220-pound (100 kilograms) rover across a moon-mimicking landscape here at NASA’s Ames Research Center, even ordering the robot to deploy a simulated film-based radio telescope antenna.
