Tag: spaceflight

Sunspot Update: The Sun quiets down, but just a little

11:50 am

With the posting yesterday by NOAA of its monthly update to its graph showing the long term trends in the Sun’s sunspot activity, it is time for me to do my own update, showing this graph below with annotations in order to provide some context.

While sunspot activity dropped slightly in January, the activity still remained well above the prediction made by NOAA’s panel of solar scientists in 2020, with the upward trend towards a solar maximum much steeper than predicted as well.
» Read more

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Astronomers confirm asteroid discovered in 2020 is an Earth Trojan

9:57 am

Astronomers have now confirmed that an asteroid discovered in 2020, dubbed 2020 XL5, is an orbit that makes it the second Earth Trojan asteroid discovered, orbiting the Sun in the same orbit as the Earth but 60 degrees ahead of us.

In December 2020, 2020 XL5 was spotted by astronomers with the Pan-STARRS 1 survey telescope in Hawaii and added to the International Astronomical Union’s Minor Planet Center database. Amateur astronomer Tony Dunn went on to calculate the object’s trajectory using NASA’s publicly-available JPL-Horizon’s software and found that it orbits L4, the fourth Earth-sun Lagrange point, a gravitationally balanced region around our planet and star. 2010 TK7, the first-confirmed Earth Trojan asteroid, is also at L4.

The confirmation that it is definitely a Trojan was then made using both new observations as well as a review of archival images, allowing the astronomers to not only refine the asteroid’s orbit, but determine that it is a C-type asteroid, dark with lots of carbon. The data also suggests that in about 4,000 years, 2020 XL5 will drift from its Trojan point.

There are certainly more such asteroids, but detecting them is difficult from Earth because they can only be seen in twilight.

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Blue Origin successfully tests fairing for New Glenn rocket

9:45 am

Capitalism in space: Blue Origin has successfully tested the jettison of the two fairing halves that will be used on its orbital New Glenn rocket.

The test took place at NASA’s Glenn Research Center in Ohio. The company’s video, available at the link, is like all such videos made by all these companies nowadays, filled with dramatic music in order to make it seem like a movie trailer. The jettison itself occurs near the end of the video, and only shows the separation..

This success is encouraging. Moreover, according to Scott Henderson, Blue Origin’s vice president of test and flight operations and Florida site director, they have also completed the launchpad in Florida.

The first launch of New Glenn is presently targeted for late this year, so these successes indicate that launch is getting close. However, everything still hinges on the production of the company’s BE-4 rocket engine, more than two years behind schedule. Until a flightworthy engine is finally available, that first New Glenn launch will remain an ephemeral dream.

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Another SLS delay

9:23 am

NASA today announced in an update for its Artemis program that the wet dress rehearsal of its SLS rocket, essentially a full countdown on the launchpad fully fueled to T-0, has been delayed from February to March.

NASA has added additional time to complete closeout activities inside the VAB prior to rolling the integrated rocket and spacecraft out for the first time. While the teams are not working any major issues, engineers continue work associated with final closeout tasks and flight termination system testing ahead of the wet dress rehearsal. [emphasis mine]

Engineers and managers are now reviewing the schedule to see if the actual launch can be scheduled for April or May, assuming the dress rehearsal goes well.

Even if all goes well, I predict a June launch at the earliest, with mid-summer more likely. While private companies like SpaceX work incessantly to compress schedules to get things done, government agencies like NASA like to expand schedules — as NASA has done here — so that no one feels they are under too much pressure.

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Pioneer game update: Kickstarter campaign delayed again

1:39 pm

I wish I could be reporting that the Kickstarter campaign for the video game of my science fiction book, Pioneer, has begun today as planned. Unfortunately, it has not, but for entirely good reasons. To quote the producer Aaron Jenkin in his update last night to newsletter subscribers:

Jellop, the Kickstarter marketing company I mentioned in our last newsletter, has asked us to make some changes to our reward tiers – changes that make sense, but that will require some major revisions. The request came last minute, and so we need more time to knock it all out properly.

Instead of announcing a new launch date and risking another false start, we’ll finish the changes and then communicate the date to you.

Since there’s no Kickstarter launch tomorrow, we will do the next best thing – we will release the game demo in the next newsletter instead! On Windows, Mac, & Linux. Be on the look out for that and after you play, please send us your feedback!

For those who want to get that newsletter update so they can try the demo, you can subscribe at PioneerSpaceGame.com. I’ve played it, and found it both fun and challenging, even though I wrote the book!

For those who want to get a sense of of what the game itself will be like now, below the fold is the game’s trailer, this time with an audio narration added for effect.
» Read more

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New Mexico legislature dumps space tourism sales tax proposal

9:05 am

Capitalism in space: A committee in the New Mexico legislature yesterday rejected a space tourism sales tax proposal submitted by two sponsors, one from each party, essentially killing the bill.

The vote to kill the bill was 9-1, with the only yes vote coming from the Democrat representing Albuquerque.

That the tax was voted down so conclusively suggests there actually might be some brain cells among the elected officials in New Mexico. Hard to believe, considering that the tax was actually proposed at a time when New Mexico’s only customer for space launches, Virgin Galactic, is in trouble and might go bankrupt. Raising its taxes would likely have only guaranteed that company’s failure.

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Astra’s 1st launch from Kennedy scheduled for Feb 5

8:49 am

Capitalism in space: Astra’s first satellite launch from Cape Canaveral has now been scheduled for Feb 5, 2022, when the startup will attempt to launch four cubesats for NASA.

This launch will also be Astra’s first operational launch, and the first to carry actual satellites on its Rocket-3.3 rocket. If successful it will join Rocket Lab and Virgin Orbit as the third operating commercial smallsat rocket company.

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Coast Guard investigating cruise ship that violated SpaceX launch zone

8:36 am

The Coast Guard has started an investigation of the Royal Caribbean cruise ship, Harmony of the Seas, that violated the launch zone of the SpaceX Falcon 9 launch on January 30, forcing a scrub.

The ship veered into the exclusion zone along a Falcon 9 rocket’s flightpath just before the 6:11 p.m. EST launch, forcing SpaceX to stand down from the mission and prepare for a 24-hour turnaround. Harmony of the Seas is the world’s third-largest cruise ship at 226,963 gross tons. It has 2,747 staterooms, a passenger capacity of 6,687 and a crew of 2,200.

In a statement issued Monday, U.S. Coast Guard spokesperson David Micallef said: “We can confirm the cruise ship was Harmony of the Seas. The Coast Guard is actively investigating Sunday’s cruise ship incursion and postponement of the SpaceX launch.”

“Our primary concern is the safety of mariners at sea, and we will continue to work with our federal, state and local port partners to ensure safe and navigable waterways,” Micallef added.

I am quite certain such investigations are routine, since ship captains are supposed to know about such launches and avoid the launch range accordingly. We normally never hear about them because the violations are almost always done by small boats or planes, not giant cruise ships.

SpaceX’s expected increased launch pace in ’22, combined with the desperate need of the cruise lines to resume normal operations following the Wuhan panic, will probably make this kind of conflict more possible. It also highlights SpaceX’s request to rethink the size of the exclusion zone, since today’s rockets are much more reliable than the rockets of the 1960s, when the zones were first created.

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SpaceX successfully launches Italian civilian/military radar satellite

4:22 pm

Capitalism in space: SpaceX today successfully used its Falcon 9 rocket to launch an Italian civilian/military radar satellite.

This was the fifth attempt to launch in five days, with the first three attempts canceled due to weather and fourth canceled because a cruise ship had violated the no-go zone in the Atlantic.

The first stage completed its third flight, landing at Cape Canaveral after sunset. I highlight this last fact because it shows how completely routine these 1st stage landing have become. No one even notices that the first stage has come back to Florida, and did in the dark. Also, this 1st stage had originally been configured for Falcon Heavy as one of its side boosters. This was its first flight after being reconfigured.

As I write this the satellite and upper stage are still linked together, coasting to the orbital point where the upper stage can boost the satellite into a transfer orbit and then deploy it. UPDATE: Satellite has successfully deployed.

The 2022 launch race:

4 SpaceX
2 China
1 Virgin Orbit
1 ULA

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When looking at Mars’ images you must never jump to conclusions

1:16 pm

Hardened sand in a crater
Click for full image.

In the past four years I have posted hundreds of cool images taken by the orbiters circling Mars. From those images I have been able to slowly gather and pass on to my readers some of the solid knowledge that scientists are gaining now about the Red Planet.

The image to the right illustrates best why one must never make any quick assumptions about the features you see in these photos. Taken on November 28, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO), it shows a small crater that appears partly filled with material. On its walls can be seen many slope streaks, a still unexplained feature unique to Mars that is not caused by rock or debris avalanches.

As for the material inside the crater, based on the majority of Martian images showing similar craters, the first assumption one might make is that this material is some form of eroding glacial material.

That first assumption however would simply be wrong. Glacial material found in Martian craters is routinely found in the mid-latitude bands between 30 and 60 degrees. This crater is sits almost exactly on the equator of Mars, where scientists have found no evidence of any glacial material or near-surface ice. In the equatorial regions the surface of Mars is essentially dry.

So what is that patch of material? As always, location is all.
» Read more

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NASA’s second SLS mobile launch tower now behind schedule

10:47 am

Par for the course: According to one member of NASA’s safety panel, the contractor building NASA’s second SLS launch tower, is having performance problems and is already behind schedule.

On Thursday, during a meeting of NASA’s Aerospace Safety Advisory Panel, one of its members provided an update on Mobile Launcher-2. George Nield, an engineer and scientist who previously led commercial space transportation for the Federal Aviation Administration, said the 90-percent design, review, and fabrication drawings for the large structure are behind schedule. These are the engineering drawings that should closely represent the final design and inform a construction schedule and logistics plan.

“Mobile Launcher-2 has encountered some challenges,” Nield said. “The selected contractor, Bechtel, has experienced some performance issues associated with underestimating the complexity of the project and some supplier related issues, as well as COVID.”

Note that NASA spent about $1 billion on the first tower, to be used only three times, at most. Its contract with Bechtel says the second tower will cost $383 million, but no one expects that number to be met.

Assuming Bechtel does not go over budget (hah!), NASA will have spent $1.4 billion on SLS’s launch towers, one of which will be used two or three times and then abandoned. That’s three times the cost of what SpaceX spent developing Falcon Heavy, and about a third the total development cost of Starship/Superheavy, including its planned launchpads in both Boca Chica and Florida.

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Ispace extends schedule for its 1st two private moon lander missions

10:37 am

Capitalism in space: The Japaneses company Ispace has revised its schedule for its first two private moon lander missions, delaying the second by one year while confirming that it is on target to launch the first before the end of ’22.

That second mission will also include a small rover, now being developed.

The only reason Ispace provided for delaying the second mission was “internal and external conditions.” My guess is that the internal conditions refers to that rover development, while the external conditions means they want more time to find customers to fly on the mission. Ispace won’t likely have trouble finding customers, but this gives them more time for others, mostly universities, to propose and create projects for that mini-rover.

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