January 7, 2021 Zimmerman/Batchelor podcast
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Category: Points of Information
Very brief descriptions, with appropriate links, of current or recent news items.
SpaceX launches Turkish communication satellite
SpaceX today successfully completed the first launch of 2021, placing a communications satellite built by Airbus for Turkey.
The first stage successfully completed its fourth flight. Both fairings were also used, having flown previously.
At the moment, SpaceX is the only one to launch in 2021, so it leads the world at the moment.
Yesterday
Because I have come down with a cold that has sapped my energy, I will let J.J. Sefton sum up my thoughts about what happened yesterday, as well as the last four decades. This is the key quote:
Tragically, a victim who has been identified as a Trump supporter was shot and killed in the chaos and confusion. Now the propagandists, the Democrats, and the GOP are condemning Trump as well as anyone and everyone who voted for or otherwise support him as traitors, engaging in violent treason and sedition. Given everything we have endured this past year and going back into the Obama years and beyond really, that attitude is risible in the extreme. It’s also infuriating beyond my capacity to describe the emotion.
My rage this morning is directed in particular at the GOP. Given everything we have seen and endured, these bastards – with the exception of the handful of patriotic members of the Senate and House who exercised their legitimate Constitutional authority and right to challenge the Electoral College votes – including Vice President Mike Pence stabbed us in the heart. Correction, they along with the state legislatures in question as well as the majority on the Supreme Court stabbed us in the heart weeks if not months ago. Pence et al were just twisting the knife. Meh, it happened the moment President Trump said “so help me G-d” four years ago when the GOP controlled both houses of Congress and sabotaged him at every turn for two years, until Paul Ryno delivered the House to Malig-Nancy Pelosi.
Year after year, election after election, we begged and pleaded with that party to stop what is now inevitable and imminent from happening. I blame them for what happened yesterday. For what happened nine weeks ago. For what has happened to this country for the past 60 years by not opposing the overthrow of America as founded and going along to get along, either out of denial, greed or some combination of both.
I was once in Moscow interviewing a Soviet-era scientist. She was curious about America and asked me some questions. Eventually the conversation turned to freedom, the law, and the Constitution. She, in the typical Russia way, extolled the wonders of Mother Russia. I then made it clear to her that I did not care one whit for the country I lived in. What I cared about was the principles that founded it. I said bluntly, “If the United States abandons those principles it will not be my country any longer.”
I fear we have reached that point.
DARPA cubesats damaged in mishap at SpaceX facility
Though no details have been released, DARPA revealed yesterday that two experimental cubesats being prepared for launch on a SpaceX Falcon 9 were damaged when the payload separation system was accidently activated.
As these were military satellites not much information was revealed by DARPA, and SpaceX made no comment.
Such things do happen rarely, but for SpaceX it is still an embarrassment and a problem. They will certainly have to figure out how this could have happened by accident, and make sure it does not happen again.
Who pays the cost for repair or replacement (more likely) is a tangled question, and will be buried in the launch contracts between DARPA and SpaceX.
Starship prototype #9 completes first static fire test
Capitalism in space: SpaceX engineers yesterday successfully completed the first static fire test of the ninth prototype of Starship, in preparation for its first 50,000 foot flight.
The SN9 vehicle’s three engines lit up for about one second today (Jan. 6) at 5:07 p.m. EST (2200 GMT) during a static-fire test at SpaceX’s South Texas facilities, near the Gulf Coast village of Boca Chica.
It is possible they will do additional static fire tests before that flight, as they did this with the eighth prototype. It is also possible that all went right in this first test, and they will proceed to launch, as soon as January 8th.
January 6, 2021 Zimmerman/Batchelor podcast
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A glacier filled canyon on Mars?
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The photo to the right, rotated, cropped, and reduced to post here, was taken on September 9, 2020 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows the northern half of a 15-mile wide canyon on Mars whose floor appears to be completely filled by a glacier. The full picture shows both the north and south rims, and captures the canyon’s outlet from the southern cratered highlands into the chaotic terrain of Deuteronilus Mensae, the region of Mars I like to call glacier country. This region of canyons and mesas forms the transition zone down to the northern lowland plains, and is a region where almost every MRO image shows glacial-type features.
The size and age of this glacial feature is what makes it stand out. First, note the craters on its surface. The glacier has to be quite old and inactive for a long time for those craters to still exist as they appear. Any movement would have distorted them, and they show little distortion.
The overview map below gives a sense of this glacier’s size.
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NASA targets Jan 17th for full static fire test of SLS core stage
After analyzing the data from an aborted fueling dress rehearsal, NASA engineers have decided they understand and have fixed the issue that caused the abort and have now scheduled the full static fire test of SLS’s core stage for January 17th.
NASA conducted the seventh test of the SLS core stage Green Run test series – the wet dress rehearsal – on Dec. 20 at NASA’s Stennis Space Center near Bay St. Louis, Mississippi and marked the first time cryogenic, or super cold, liquid propellant was fully loaded into, and drained from, the SLS core stage’s two immense tanks. The wet dress rehearsal provided structural and environmental data, verified the stage’s cryogenic storage capabilities, demonstrated software with the stage’s flight computers and avionics, and conducted functional checks of all the stage’s systems. The end of the test was automatically stopped a few minutes early due to timing on a valve closure. Subsequent analysis of the data determined the valve’s predicted closure was off by a fraction of a second, and the hardware, software, and stage controller all performed properly to stop the test. The team has corrected the timing and is ready to proceed with the final test of the Green Run series.
…The upcoming hot fire test will fire all four of the stage’s RS-25 engines simultaneously for up to eight minutes to simulate the core stage’s performance during launch. After the firing at Stennis, the core stage for SLS will be refurbished and shipped on the agency’s Pegasus barge to NASA’s Kennedy Space Center in Florida. The stage will then be assembled with the other parts of the rocket and NASA’s Orion spacecraft in preparation for Artemis I, the first integrated flight of SLS and Orion and the first mission of the agency’s Artemis program.
The agency had been hoping to complete this test series before the end of 2020. Whether the delay will effect the planned launch date in November is unclear. I suspect they are already anticipating another postponement, in that this press release strangely makes no mention of that launch date.
Tianwen-1 to arrive in Mars orbit February 10
The new colonial movement: China’s space agency, CNSA, today announced that its first Mars orbiter/lander/rover, Tianwen-1, will arrive in Mars orbit on February 10th, with the lander/rover dropping to the surface in May.
After entering orbit, Tianwen-1 will begin to prepare for a landing attempt of the mission’s rover. The orbiter will begin imaging the main candidate landing site within the huge impact basin Utopia Planitia, to the south of NASA’s Viking 2 landing site.
Getting ready for the attempt will take time however, with CNSA stating that the landing won’t take place until May.
At the moment they say that all systems are working as planned, and that they have one more course correction, the fourth, to do before entering orbit.
Updates on Starship development: next 50K foot flight this weekend?
Two different updates yesterday and today on the development of Starship by SpaceX suggest strongly that the company is aiming for its next test flight to about 50,000 feet as early as this coming weekend.
- Starship SN9 speeds toward Static Fire and test flight
- SpaceX scraps Starship SN8 wreckage, clears landing zone for next launch
The second story notes how the company has apparently decided it was not worthwhile keeping much of the debris left over from the crash of the eighth Starship prototype after its successful test flight on December 9th. They have instead focused entirely on clearing the landing pad as quickly as possible, even if it meant destroying some of the prototype’s remains.
The first story outlines the ongoing pressure tests for the ninth prototype, now on the launchpad, and how those tests have so far proceeded very smoothly. All that remains is SpaceX’s standard dress rehearsal countdown ending in a static fire test of the prototype. This is presently scheduled for tomorrow. Once it is accomplished, the test flight can follow quickly, probably no more than a week later, depending on weather, the data from the static fire test, and the innumerable uncertainties that routinely occur in a robust test program such as this.
China targets 40-plus launches in ’21
The new colonial movement: China’s space agency announced today that it is aiming to complete at least 40 launches in 2021.
A terse summary of the report in a CASC press release (Chinese) stated that missions related to the Chinese Space Station complex would be among the planned 40-plus launches. Recent reports state that the space station core module will be launched in the coming months, followed by the Tianzhou-2 cargo vessel and Shenzhou-12 crewed missions. The missions will require Long March 5B and Long March 7 launches from Wenchang and a Long March 2F launch from Jiuquan in the Gobi Desert.
Other major highlighted activities include the Tianwen-1 Mars spacecraft, which is due to enter Mars orbit around Feb. 10 with a rover landing attempt to follow in May. Development work will focus on the two experiment modules for the Chinese Space Station and, notably, crewed lunar exploration. No further details on the latter were provided but earlier indications are available.
Assuming they experience no major launch failures, 2021 should be a ground-breaking year for China.
A Martian “glacier” made of volcanic ash
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Of the numerous cool images I’ve posted on Mars, many have documented the growing evidence that in the mid-latitudes of the Red Planet are many buried glaciers of ice.
Today’s cool image to the right, rotated, cropped and reduced to post here, shows something that at first might resemble the features one would expect from an ice glacier, but in reality is actually a flow of volcanic ash being blown almost like a river, with the prevailing winds blowing from the south to the north.
The photo was taken by the high resolution camera on Mars Reconnaissance Orbiter (MRO) on November 1, 2020. The location, very close to the equator and in the transition zone dubbed the Cerberus Plains, is also smack dab between Mars’s biggest volcanoes, a region I like to dub Mars’s volcano country. The overview map below gives the context.
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