Category: Points of Information

Very brief descriptions, with appropriate links, of current or recent news items.

The ever shrinking and delayed Orion/SLS

6:15 pm

NASA is considering changing the first Orion crewed mission so that, instead of orbiting the Moon, the spacecraft will merely whip past it on a course that will take it directly back to Earth.

In a presentation to a Nov. 30 meeting of the NASA Advisory Council in Palmdale, California, Bill Gerstenmaier, NASA associate administrator for human exploration and operations, discussed what he described as a new proposal for Exploration Mission 2 (EM-2) that would last eight days. The concept, called the multi-translunar injection free minimum mission, would initially place the Orion spacecraft and its Exploration Upper Stage (EUS) into an elliptical orbit around the Earth with an apogee of 35,000 kilometers. After spending one day in that orbit, the spacecraft would separate from the EUS and use its service module engine for a final burn to send the spacecraft towards the moon. Orion would fly on a “free return” trajectory around the moon without going into orbit and without requiring another engine burn. The mission would end with a return to Earth eight days after launch, but with an option to extend the mission to up to 21 days.

The entire SLS/Orion project is idiotic and incredibly dangerous, not because it is going to the Moon but in how they plan on doing it, with literally no preparation flights beforehand. With Apollo, NASA was very careful to test each part of the package first, then proceed with a more ambitious mission. The only exception to this process was Apollo 8, which went to the Moon without a Lunar Module. That happened because they were in an intense space race with the Soviets and were under pressure to achieve Kennedy’s commitment to land before the end of the decade.

With SLS/Orion there is no such pressure. What is driving their lack of testing is a lack of money, caused by the project’s ungodly cost. They not only can’t afford to build multiple rockets to fly a variety of missions building up to the Moon, Congress hasn’t given them the money. Right now all they have allocated is enough to fly one unmanned mission in 2018, and this one manned flight in 2021 (which by the way is almost certainly going to be delayed until 2023).

The worst aspect of SLS/Orion is its stuntlike nature. They aren’t building anything that will have any permanence or allow for future colonization. It costs too much. Instead, SLS/Orion is designed to do one or two PR missions that will look good on some politician’s resume, but will do little to further the colonization of the solar system by the U.S.

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The beginning of Cassini’s final year at Saturn

6:06 pm

Link here. The article does a nice job of outlining, with videos, what will happen as the spacecraft makes multiple dives inside rings.

Cassini’s final acts, which will play out over the next year. That pass placed Cassini in a high-inclination orbit tilted 60° relative to the ring plane. Cassini will perform 20 passes just 620 miles (1000 kilometers) outside the F ring of Saturn in a phase known as the Ring-Grazing Orbits, which runs from late November 2016 through April 2017.

Cassini already reached apoapse, or its farthest point from Saturn, on Wednesday, November 30th. The first ring crossing is coming right up this weekend on Sunday, December 4th, at 7:09 a.m. EST / 13:09 UT. During the first periapse pass on Sunday, Cassini will also burn its main engine for the 183rd and final time for the mission. All later fine course corrections will be made using thrusters only.

Things get even more interesting after April, when the series of Grand Finale Orbits will begin, taking the spacecraft through the 1240-mile-wide (2000-kilometer-wide) gap between the planet’s cloud tops and rings for 22 final orbits. The Grand Finale Orbits start with the spacecraft’s 126th and final pass near Titan, which will set the spacecraft up for much tighter final orbits.

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Cause of Progress failure unlikely to be found

6:03 pm

Not good: Sources in the Russian press say that it will likely be impossible to pinpoint precisely the cause of the Progress failure this week because of a lack of telemetry or data.

The causes of Thursday’s loss of the Progress cargo spacecraft are unlikely to be established, because neither telemetry data nor debris of the Soyuz-U rocket that was taking the cargo vehicle in orbit are available. “Telemetry transmission from the rocket was disrupted instantly, so it is practically impossible to establish the sequence of events to identify the causes of the emergency. As for material evidence, such as debris of the rocket’s third stage that might provide some clues, it is not available, either,” the source said.

They are still searching for debris but have so far come up empty.

Lacking data, they are now beginning to use computer modeling to try to figure out what happened. The prime suspect is the third stage engine.

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ESA approves ExoMars 2020 funding

5:58 pm

Despite the failure of the Schiaparelli lander on ExoMars 2016, the European Space Agency today approved funds to build and fly the ExoMars 2020 rover mission.

At a meeting of European government ministers in Lucerne, Switzerland, on 1 and 2 December, ESA member states agreed to provide an extra €339 million for ExoMars 2020. ESA also announced that it will find a further €97 million by moving funds internally. Speaking at a press briefing after the meeting, ESA director-general Jan Wörner said this would be done “without detriment” to ESA’s wider science budget.

But not all projects were so fortunate. Member states did not commit the €250 million needed to fund a plan for ESA to participate in a mission to deflect the moon of an asteroid, although they left door open to future, similar projects.

I am not at present sure how they are going to divide up the work between Europe and Russia. Earlier it was my understanding that Russia would provide the roving technology, but right now I am very unsure about this.

One side note: At this same meeting ESA committed to sticking with ISS through 2024.

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Trump initial agenda includes Obamacare repeal and “fundamental tax reform”

10:00 am

This article provides a good summary and analysis of comments by vice-president-elect Mike Pence describing the initial plans of the Trump administration.

The new administration’s first priorities would include curbing illegal immigration, abolishing and then replacing Mr. Obama’s signature health-care system, nominating a justice to fill a vacancy on the Supreme Court, and strengthening the military, said Mr. Pence, whose wife, Karen Pence, sat nearby during the interview.

…By springtime, the Trump administration would work with congressional leaders “to move fundamental tax reform” meant to “free up the pent-up energy in the American economy,” he said. Pillars of the tax overhaul would include lowering marginal tax rates, reducing the corporate tax rate “from some of the highest in the industrialized world” to 15%, and repatriating corporate cash held overseas, he said.

Overall, if they do what Pence says (some of which was confirmed by Trump in his remarks at the Carrier plant yesterday), they will move the government in the right direction.

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Hampshire College ends ban on U.S. flag

9:51 am

Hampshire College, faced with intense criticism over its decision to stop flying the American flag, has ended the ban.

Hampshire President Jonathan Lash says the flag was not removed to make a political statement or to offend, but to facilitate dialogue. He says the flag has been raised again “as a symbol of … freedom, and in hopes for justice and fairness for all.”

Yeah, right, dialogue is always facilitated by banning something. What I think really happened here is that Lash suddenly discovered that his anti-American ban had really facilitated the end of all donations from alumni, and thus he suddenly discovered that he really is a loyal American who loves his country.

Personally, I think donations should continue to dry up until the college replaces Lash and the rest of its academic personnel that initially supported this ban.

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Another captive carry flight test of Virgin Galactic’s Unity

8:56 am

After cancelling a planned first glide test of Virgin Galactic’s Unity spaceship in early November, the company completed a second captive carry flight on November 30.

“As part of our ground and flight testing, we made a few tweaks to the vehicle,” Virgin Galactic tweeted before the Nov. 30 flight. “We’ll test those in a captive carry flight today.” Virgin Galactic has not announced when the next test flight will take place or if it will include a glide test.

They apparently found some issues both from the first captive carry flight as well as ground tests that required them to make some changes to the spaceship and do another captive carry flight.

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Japanese company developing suborbital mini-shuttle

8:46 am

The competiion heats up: A private Japanese company is developing a sub-orbital mini-shuttle capable of carrying up to eight people, and hope to fly it by 2023.

An unmanned trial run of the prototype to an altitude of 100 kilometers is scheduled for 2018, and if a manned mission is successfully achieved by 2020, the company hopes to commence its space travel enterprise by the end of 2023. The price of a trip into space is aimed to be about 14 million yen — which is approximately 70 percent of that announced by American company Virgin Galactic. PD Aerospace aims to take passengers to an altitude of 100 kilometers, where they will be able to enjoy a “zero-gravity floating experience” for about 5 minutes, before returning to Earth.

They are entering this competition very late. Considering how slowly Virgin Galactic has moved, though, they still might beat them into orbit.

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Japan developing small rocket for commercial smallsats

8:41 am

The competition heats up: Canon has joined a new project by the Japanese space agency JAXA to develop a small rocket for commercial smallsats.

The three-stage rocket is an upgrade to JAXA’s two-stage SS-520, which carries instruments for research observations. Measuring 52cm in diameter and less than 10 meters in length, the new version will cost less than one-tenth as much to launch as leading rockets and is expected to be used to lift microsatellites in orbit. An initial launch is slated for early next year from the Uchinoura Space Center in Kagoshima Prefecture.

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Fourth Google Lunar X-Prize team gets launch deal

8:32 am

The competition heats up: TeamIndus, based in India, has signed a contract with ISRO to launch its Google Lunar X-Prize rover as a secondary payload on a Indian PSLV rocket.

This is the fourth X-Prize team to announce a launch contract. According to the rules, the teams have until the end of the year to obtain a contract or else they are out of the competition. We should therefore expect more of these announcements in the coming weeks.

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Cygnus fire experiments a success

11:21 pm

The fire experiments that were done on the Cygnus cargo freighter after it left ISS two weeks ago have been declared a success.

Saffire-II burned nine different samples, in an effort to gauge the flammability of various materials in a microgravity environment. These 12-by-2-inch (30 by 5 centimeters) samples included silicon of different thicknesses; a cotton-fiberglass blend; plexiglass; and Nomex, a commercially available material that’s used in spacecraft on cargo bags and as a fire barrier, NASA officials said. Everything went well during the experiment, they added: All nine samples burned as planned, and the Saffire-II team collected more than 100,000 images. All data had come back down to Earth by Friday (Nov. 25), at which point Saffire-II achieved “complete mission success,” NASA officials wrote in an update.

This was the second set of fire tests. There are plans for a third on a future Cygnus freighter.

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Buzz Aldrin evacuated from South Pole due to health issue

1:46 pm

Astronaut Buzz Aldrin was today evacuated from U.S. South Pole station due to a worsening health condition.

Aldrin, 86, is in stable condition after “his condition deteriorated” while visiting Antarctica, according to White Desert, which organizes luxury tourism trips to the icy continent. The group said Aldrin was evacuated on the first available flight out of the Amundsen-Scott South Pole Station to the McMurdo Station on the Antarctic coast under the care of a doctor with the U.S. Antarctic Program. He then was flown to Christchurch, New Zealand, and arrived at about 4:25 a.m. local time Friday (10:25 a.m. Thursday ET), according to the National Science Foundation, which provided the flight for Aldrin.

They have not released much information about his condition, other than saying that Aldrin is in good spirits.

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Russia Progress freighter lost during launch

1:39 pm

Due to what appears to be the failure of the third stage of its Soyuz rocket, a Russian Progress freighter bringing supplies to ISS was lost.

The Russian space agency — Roscosmos — confirmed the demise of the Progress MS-04 cargo craft in a statement, saying the automated spaceship was lost as it flew nearly 120 miles (190 kilometers) over the Tuva Republic in Southern Russia. Engineers lost telemetry during the Soyuz rocket’s third stage engine burn, and most of the vehicle’s fragments burned up in the atmosphere, Roscosmos said.

The consequences of this failure are numerous:

  • The cargo failures to ISS have been a continuing problem. Despite significant redundancy, every single cargo freighter has had failures or delays in the past two years.
  • The failure of the Soyuz rocket is a major concern, since this is the rocket that we depend on to bring humans to ISS. Nor is this the first time this year that the third stage had issues. In May the third stage cut off prematurely.
  • This failure, combined with the other quality control problems Russia has experienced in the past few years with the Soyuz capsule and the Proton rocket, adds to the concerns.

It now becomes even more imperative for the U.S. to get its own manned spacecraft capability back.

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Democrats pick Pelosi again

11:46 am

Nancy Pelosi has fought off a challenge to her position as the House Democratic leader, winning 134 to 63.

Considering how badly the Democrats have fared in elections under her leadership, her victory here indicates strongly the bankrupt state of the Democratic Party. They seem unable at all to accept any blame for their losses, which would be the first step in reforming their increasingly corrupt party. Instead, they have been doubling down on the same rejected leftwing and race-based policies. Note also how the Democratic Party has become entirely dominated by its urban and coastal regions. While those areas have become almost one-party states run unopposed by the Democratic Party, their influence is very regionally limited and has been strongly rejected by most of the rest of the country. Even so, the Democrats continue to pick as their leader an extreme leftist from the extremely leftist San Francisco area.

None of this bodes well for either the Democratic Party, or the nation on the whole. To have a healthy democracy you need a healthy opposition party. Right now we do not have it.

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