December 4th, 2018 by Batu Osmanoglu and the SWESARR team
Thanks to the dedicated work of the NASA Langley Airworthiness and Safety Review Board, SWESARR was cleared to fly Friday afternoon (November 30), and was able to conduct its maiden flight on Saturday December 1, 2018. The flight took place around the Grand Junction airport, and lasted just over 2 hours. During that time, the radar collected data at 1500, 2000, and 3000 meters above ground level (AGL) in various radar operation modes.
The Twin Otter aircraft is getting fuel for the SWESARR flight, while Quenton Bonds is taking radiometer calibration measurements. James Jacobson from NASA Ames is discussing the Applanix boot procedure with pilot Grant Frost.
First flight went as expected with minor issues to tackle, verifying the instrument operation, and tweaking parameters. At all times beyond 10,000 feet MSL the crew used additional O2, per NASA regulations. At any given moment, there was always a lot to do for the three qualified non-crew members (a.k.a. the scientists and engineers).
Rafael Rincon is setting up the instrument parameters, while keeping a keen eye on the signal levels coming in at all times. Chase Kielbasa, is monitoring the radiometer measurements.
Grand Junction Airport from the air. Four corner reflectors (radar calibration targets) at different sizes are installed in the field, visible in the middle of the image.
After the first flight, the team got the data off the computer and started processing the hours of data that were collected. Data analysis continued on Sunday, to take a hard look at the data quality and instrument performance. The analysis will continue when the team is back at Goddard, but all indications are positive.
The hard efforts of two team members, Rafael Rincon in the field, and Tobias Bollian at Goddard, are producing good results as the first images from SWESARR radar start to come in. The team is analyzing the images to tweak the instrument parameters to achieve best image quality.
Preliminary image by Rafael Rincon, showing X-band Co-polarization imagery. Motion compensation is not applied to this image, and effects of airplane motion can be seen as the variation in near-range distance and blurring at along-track dimension when the aircraft motion was too strong. Application of motion compensation will remove such artifacts.
November 30th, 2018 by Batu Osmanoglu and the SWESARR team
The Snow Water Equivalent Synthetic Aperture Radar and Radiometer (SWESARR) is a new instrument designed to measure the water content in a snowpack. The instrument, developed at NASA’s Goddard Space Flight Center, uses active and passive microwave sensors to map the radio frequency emissions of the snowpack, which can then be turned into a measurement of snow water equivalent. From November 25 to December 5, 2018, scientists and engineers are in Grand Junction, Colorado, where they are flying the instrument to study and validate its performance.
The SWESARR team and the aircraft techs at the Twin Otter International, Ltd. (TOIL) have been hard at work to get the instrument ready for flight. The integration started on November 26 with some of the team members flying out after the Thanksgiving holiday. Integration went smoothly with no major hurdles.
Steve Seufert is helping install the racks onto the aircraft on November 26.
The instrument is now fully integrated on the aircraft and ready to fly, pending approvals from the Langley Airworthiness and Safety Review Board. If the approval comes in on time, we are hoping to have our first flight this afternoon, as soon as the rain stops in Grand Junction.
Right now, the team is making the final checks on the instrument and completing as much work as possible.
Quenton Bonds is completing final checks on the SWESARR radiometer.
Rafael Rincon completed the radar setup and is ready to fly!
November 29th, 2018 by Doug Rowland
That’s the word you never want to hear in Ny Ålesund. Stealthy hunters, polar bears (“ice bears”) are used to sneaking up on the seals that come ashore on Svalbard. They will stalk their prey, drawing ever closer and waiting patiently, until they can leap and dispatch their meal with a quick blow from their massive paws or a crushing bite. They rarely attack humans, and rarely come into town, especially in winter, but they are also well known for stalking humans. And with a top speed close to forty miles per hour, if they get within a hundred yards, there’s not much you can do if you are caught out on the ice with one. For this reason, anyone leaving the protected area of town must go, preferably in a group, with a loaded rifle. Shooting the bears is a last resort, because they are a protected species, with only 25,000 left in the world, and only approximately 3000 of those living on Svalbard. Your best hope is to scare the bear with a signal gun, a flare, or rifle shot aimed to miss. For the seals, their only hope is to reach the water. And even there, the bears can follow.
The sign at the edge of Ny-Ålesund reminding residents to carry a loaded rifle when leaving the town, and to unload the rifle when returning. Credit: Superchilum, CC-BY-3.0, via Wikimedia Commons
Like the isbjørn, we are ambush hunters. Our prey are atmospheric fountains, jets of gas being shot into space under the impact of the cusp aurora. These fountains are strongest when the solar wind gusts above the gentle breeze that is normal for solar minimum, and when the solar wind’s magnetic field is oriented perfectly to unlock the Earth’s magnetic vault, like a key with wards of million-degree plasma and a shaft millions of kilometers long. The aurora that drives these fountains comes with at most an hour’s warning, radioed to us by the DSCOVR spacecraft, our “space weather buoy” balanced at the Lagrange pointbetween the Earth and the Sun. Until we get that signal, we lay in wait, ready, on a hair trigger, sneaking up on the aurora, taking care not to make any sudden movements, but prepared to hit the target.
Aurora over Ny-Ålesund. Credit: Ahmed Ghalib
When DSCOVR tells us that a solar wind gust is coming, we move into high alert, but cautiously, carefully, checking each step before settling in to the next, our eyes always on our target – a successful launch. There are 78 steps between the first scent of our prey and the final pounce. We may do them all in one motion, smoothly, or we may move forward a bit, then pause, wanting to entice the aurora into view, then start again. We will repeat this dance many times in the coming days. The surface winds are just as much our concern as the solar wind. If the solar wind gusts turn out to be too weak, or if the terrestrial surface winds pick up while we wait, we will have to reset, and wait for our chance to start again. In this way, we are just like the isbjørntrying to stay downwind of the seal, vulnerable to every change in the wind direction. The rockets are unguided, and to counter the effects of a wind that would blow them off course, we have to swing the massive launchers to a different heading. Our eyes and ears in this endeavor are the weather balloons, launched every 30 minutes so that we can correct our trajectory and fly straight and true towards the heart of the aurora.
VISIONS-2 co-investigator Jim Hecht studies “the wall of science” which we use to display data that shows auroral conditions and forecasts. Credit: Doug Rowland
When the moment is right, we launch.
Paulo Uribe stands in front of the VISIONS-2 35.040 payload on the launch rail, during boxing (the styrofoam box allows us to regulate the rocket’s temperature so it doesn’t get too cold while we are waiting to launch) and rigging of umbilicals, liquid nitrogen and dry nitrogen lines, fiber optic lines, etc. so that we can control and test the payload up until the moment of launch. This is a new launcher designed by Wallops Flight Facility called the Mobile Medium Launcher (MML), and it is specifically designed to be large enough to launch our three-stage vehicles and yet easily transportable to remote field sites. Foreground: Paulo Uribe. Background, from left to right: Glenn Maxfield, Logan Wright, Hans Arne Eilertsen, Rusty Laman, Eric Taylor, Jorge Camacho. Credit: Doug Rowland
Doug Rowland, VISIONS-2 principal investigator, stands next to the 35.039 payload on its launch rail before completion of boxing. Credit: Paulo Uribe
Even then, it is never a sure thing. The aurora is slippery. Elusive. At launch it may be brilliant, dancing, daring us to come closer. But our rockets, though ultimately speedy, are massive, and take some time to get up to speed and reach their goal. In that brief time, just two to five minutes, the aurora may step aside, like a toreador flashing its brilliant red (630.0 nm) cape. Or it may fade, like a mirage.
Full moon over the 35.039 payload in its final GPS test before going to the launch pad. Credit: NASA
Or we may strike true, into the heart of an atmospheric fountain. If we do, we will have ten short minutes to luxuriate in the heated oxygen and hydrogen that sprays out into space, never to return. If we do, our neutral atom imaging cameras will be busy, building our grainy and blurry picture of the fountain as we fly through, over, and around it, taking its measure from all angles. If we do, our auroral camera will precisely document the nature of the aurora that is activating the fountain – its intensity, its temperature, and the height at which it is being generated. We believe that intense, lower-temperature auroras, that deposit their energies at higher altitudes (200 km) are more effective at driving fountains than hotter auroras that strike deep into the thicker atmosphere near 120 km. Our simultaneous pictures of the atmospheric fountain and the aurora will test this idea. Meanwhile, our other instruments will be listening, probing, sampling the gas, taking its scent as it were, to explore the details of how the fountain is generated.
Many times the aurora will evade us. But we are patient. And we have all the tools we need to wait for just the right moment to strike. We have cameras to track the aurora, to see the footprints of the energy that streams down the magnetic cusp from the solar wind. Powerful radars in Longyearbyen and Pykkivibaer to sense its beating heart. The DSCOVR spacecraft to warn of us its approach. But ultimately, we have to take a chance. We have to go, or not. Three years and more of work come down to 78 steps. And one pounce.
November 26th, 2018 by Doug Rowland
The air in Ny-Ålesund is thick with memory. There are no trees here, marking the years with their rings, only the endlessly accreted layers of ice in the glaciers. Most of the long history of Ny-Ålesund is written only in the rocks and the snow, an enigma that only slowly yields to the Rosetta stones of ice cores, rock drills, and mass spectrometers.
Aurora and moonlight over a Ny-Ålesund gravesite. Credit: Chris Pirner
But this is also a human place. In the last hundred years many have visited, many have lived, and some remain, in their final rest. Photographs hang near the foosball table, showing residents from a different time, resplendent in formal attire as they dine at tables set out on the snow, celebrating the return of the Sun. The styles change, but there is one constant — the spirit of adventure, of an impulse to explore; to live at the edge of the world and to go beyond. The same spirit that moves us and brings us here for our mission.
The Ny-Ålesund museum celebrates the lives of the coal miners and their families who first made this place their home one hundred years ago. They came for the rich coal seams lining the Kongsfjord — rich but dangerous. The nearly vertical seams tend to trap deadly methane gas, and many miners were lost in a series of explosions and accidents. Their spirits live on here — they and their families made this place. They carved it out of the tundra and rock, built the harbor and the houses and the airport. Without them there would be no town here, no research, and no rockets. We fly in honor of them and their courage, to make a living in this place, far from home.
Ny-Ålesund, 1928 – In the foreground you can see the town, and in the background, the mines and airship. Between 1916 and 1963, 82 coal miners lost their lives due to the dangerous conditions in the mine, including the buildup of deadly methane gas that was prone to explode. Now the mines are closed, and the town is focused on scientific research. Credit: Svalbard Museum
The polar explorers of the early 20th century recognized the value of Ny-Ålesund as a base, for the same reasons we come here — the safe harbor, the mild climate, and the solid land, last before the sea ice over the Pole. Umberto Nobile and Roald Amundsen and their crews took flight from Ny-Ålesund in May 1926, in the airship Norge. This zeppelin was the first vessel of any kind to reach the North Pole, and is celebrated here with many photographs. It is memorialized in the name of the Zeppelinobservatoriet, the high-altitude atmospheric monitoring station on Zeppelinfjellet, the mountain that rises 556 meters above town. While the Norgewas successful, the sister ship Italia, captained by Nobile in 1928 met a tragic end. On its return from the pole, it crashed into the ice north of Svalbard. Though many were rescued, 17 crew and rescuers died in the attempt, including Amundsen, whose plane crashed at sea as he flew to help. We fly to celebrate these airmen, and their thirst for knowledge and exploration.
The airship Norge, captained by Roald Amundsen and Umberto Nobile, as it prepared for launch from Ny-Ålesund on its way for the first overflight of the North Pole in May 1926. Its sister ship Italia crashed in May 1928 on its return from the Pole, with 17 fatalities among crew and rescuers, including Roald Amundsen who had flown his plane to help in the rescue. Credit: Nasjonalbiblioteket, CC-BY-2.0, via WikiMedia Commons
The researchers and Kings Bay staff who come here to work and live, some for months, and some for years, keep this town and all its facilities running. They work long hours each day and pour their hearts and spirits into Ny-Ålesund to make it a warm place. A place of community and curiosity. A place where you are just as likely to spend Friday night at a scientific lecture or watching a chess match as at a karaoke party or playing “bandy” which is like indoor hockey. Many of them go months or longer without seeing family, and have only the occasional trip home to break the long months of winter night. Nonetheless, they are professional, cheerful, and inclusive, making us feel welcome and at home. They worked to build the second launch pad that we need for our mission, laboring to bring the concrete and the rebar and the tools that could only be used for a brief warm period in the summer when the permafrost had thawed sufficiently. They worked to give us a beautiful Thanksgiving meal which was a welcome taste of home. They work every day to keep us warm, well fed, and safe, and to support our mission. The watchman, who patrols for polar bears, the electrician, who keeps the power plant and heat running, the technical manager and the reception staff who keep the hotel, dorms, and logistics running smoothly. The kitchen staff who work seven days a week to provide for us. All are here because they choose it — no one these days is born in Ny-Ålesund. We are all visitors here. But these long-term residents make the rest of us short-timers feel like we belong. We fly in thankfulness for their support and their welcome.
Thanksgiving dinner, which we enjoyed Saturday, Nov. 24. The Kings Bay staff pulled off an amazing and heart-warming meal, with all the American favorites – mashed potatoes, sweet potatoes (which the Norwegians were sure was meant for dessert). Glenn Maxfield, from the NSROC crew, coordinated to make sure the turkeys were in the sea shipment that left several months ago, in order to be ready for this meal. NASA family and friends also provided many of the recipes, which made it feel like home. Foreground, from left: Mark Frese, Norman Morris, Tim Wilson. Credit: NASA
Members of the receiving and telemetry team share a meal with some of the instrument team at the Kroa restaurant in Longyearbyen. Clockwise from left: Jim Clemmons, Joe Sherwood, Joe Kujawski, Nygel Meece, Jason McLain, Andrew Muender, Corbin Williams, Bob Swift, Zack Long, Andy Carlton, Ryan Charnock, Devon Raley. Credit: NASA
Our team shares the spirit of the men and women who have called Ny-Ålesund their home before us. We come from all over, to this place, in the spirit of adventure. We are far from home, too, and we are living at the extremes to accomplish our goals. We come from NASA, from Andøya, from Oslo, from Bergen, from Longyearbyen, from Canada, from our university and industry partners. We bring that same sense of community and drive to achieve that those before us have brought since the first NASA sounding rockets were launched here in 1997, and back to Ny-Ålesund’s founding in 1917. We fly to honor the sacrifices that we each have made, and the dedication we all feel to each other, in our three-year journey from project inception to field campaign.
Some of the payload and instrument team members, in front of the world’s northernmost train. From left: Chris Pirner, Ted Gass, Mark Frese, Tim Wilson, Norman Morris, Eric Taylor, Nate Empson, Logan Wright, Frank Waters, Jorge Camacho, Ahmed Ghalib, Doug Rowland, Mike Southward, Paulo Uribe. Credit: Chris Pirner
But there are those who could not be with us for this journey. Even in the midst of our joy, we have lost loved ones. Kelly Pham Nguyen, Alvaro Uribe, John Rowland, and Bernita Justis. We fly in their memory, as their spirits lift us high.
The memorial plaque for Bernita Justis. Both VISIONS-2 payloads carry this plaque, to honor her memory and the 31 years she dedicated to building and launching sounding rockets all over the world. Bernita passed this summer, in the middle of integrating the payloads for the Grand Challenge missions. Even in her last moments, she was hardworking, dedicated, cheerful, and positive. We fly in her memory. Credit: Doug Rowland
November 24th, 2018 by Doug Rowland
Our launch window opens in ten days – December 4. Each day brings us closer to being ready, as we continue the routine of testing and preparations. These are the same steps that we run through wherever we launch our rocket missions, but Ny-Ålesund has its own special atmosphere. Here, without the regular rising and setting of the Sun to bring a sense of duration, the long winter nights can seem timeless. We mark the days instead by our work shifts, blessedly interrupted by common meals warmly prepared by our Kings Bay colleagues at the Servicebygget, where everyone in the town eats together.
The cafeteria at the Servicebygget. All residents eat three meals a day here, as part of the “Velferden” system that encourages people to gather and share community, especially important during the long polar night. Credit: Doug Rowland
Meals are different here. There are no cellphones at the tables. This is because the village of Ny Ålesund, and a 20 km radius around it, is in a radio quiet zone — no cellular, WiFi, or Bluetooth. The quiet zone is designed to protect exquisitely sensitive radio antennas that are listening to distant quasars, one of many experiments ongoing at this scientific oasis. The meals are not quiet, however. People are focused on each other; on the food and conversation. Most meals have varieties of fish and potatoes, but there is also delicious homemade bread, fresh fruit (in high demand) and fresh vegetables. There’s always a smörgåsbord of cheese, meat, and relishes of various kinds, and cookies, pudding, or mousse for dessert. Every weekday, we have three meals together, and on the weekends two, with Saturday dinner a special “dress-up” event, with candlelight, when one can bring wine or beer to share.
In between the meals, we walk. A lot. The town has roads and plank walkways, laid down to protect the pristine tundra. Ny-Ålesund takes its stewardship of the environment seriously. There is no litter in the street, and it is forbidden to walk on the bare tundra, to protect the delicate ecosystem. There are few vehicles, mainly only for service and cargo handling. A few of the residents get by on bikes, but mostly people walk. The roads are typically covered in ice, so we wear spikes on our boots. For the first week or two, before the spikes, many of us were slipping, sliding, and falling, but with the spikes the roads are very manageable.
Walking down the “main street” of Ny-Ålesund. Reflective vests are a must, as most traffic is by foot, but there are service vehicles that need to use the roads as well. Credit: Doug Rowland
Though there is no sunlight (except a brief twilight glow at noon, and even that is fading as we approach the solstice), there is often enough light from the town and from the Moon, which is currently full and in the sky 24 hours a day. As we approach the launch window, the new moon will arrive, and remain below the horizon most of the day, letting us use our sensitive cameras to capture the faint aurora, and making the polar nights even darker. Usually one can make out the surrounding mountains and glaciers, and the calm waters of the Kongsfjord. There is even an occasional iceberg calved into the fjord, and they stand out white against the dark waters.
Besides the moon, our other constant companion is the wind. Most days there is anything from a fresh breeze to stiff wind, up to 35 mph (56 kph). Though the air temperature is in the teens (-5 C), the wind cuts through all but the warmest clothing. We are walking upwards of 1.25 miles (2 km) a day in this wind. The walk is another time for community, or at least commiseration, and it is also a time to enjoy the austere beauty of the landscape, the aurora, the moonlight on the water, and even the intense beam of the research LIDAR used here to study the atmosphere, flaring into the sky like a pillar of green flame.
The research station uses a green LIDAR to study the atmosphere – it is intense and striking against the background of a starry night. From left to right: Paulo Uribe, Long Nguyen. Credit: Chris Pirner
At one end of the walk is the payload assembly building, where we are testing the rocket payloads and science instruments. Sven, the harbormaster, has graciously offered his garage for the testing of the payloads, and the accommodations are luxurious compared to some other remote sites we have visited. Picture a large warehouse, sixty feet (15 meters) on a side, with a thirty-foot peaked roof. Spread about the floor are workbenches, packing crates repurposed as equipment racks, shipping containers, and the payloads themselves. A large roll-up door lets the trailers in and out, as well as the occasional icy gust.
Part of the payload team performing a “sequence test” of the “35.040” payload, one of two that we will launch as part of VISIONS-2. The Sequence test is the final end-to-end test of the rocket payload, in as flight-like a configuration as possible, where we verify that all the automatic timer-based events are activated when expected. From left to right: Eric Taylor, Koby Kraft, Mark Frese, Jorge Camacho, Ahmed Ghalib. Credit: Doug Rowland
At the other end, our dormitories, the Kongsbutikken (general store), gym, Ny-Ålesund museum, and Servicebygget (mess hall and rec center). All the buildings are unlocked, both for convenience, but also for safety in case a polar bear visits the town. In each building, we remove our boots and wear slippers or indoor shoes, to keep from tracking in the ice and snow (or scratching the floor with our spikes!). The “Velferden” system here includes a cozy cafeteria and common area, recreation area with pool and foosball, and a dancehall themed after Roald Amundsen’s flight of the Norgeairship to the North Pole, soon to be the site of the world’s northernmost karaoke party.
A corner of the “dancehall” in the Servicebygget (Mess Hall). Saturday nights there are parties here, with music and volunteer bartenders. The dancehall is decorated in honor of the airship Norge, the first vessel to overfly the North Pole, which was led by Roald Amundsen, and which made its final stop in Ny-Ålesund before making the trek to the Pole on May 11-12, 1926. Credit: Doug Rowland
The “Syk” dormitory, once the site of an infirmary, houses several of the VISIONS-2 science team. The rooms are compact and space-efficient, each with a private bathroom and internet access. Credit: Doug Rowland
Tonight, the Norwegians have kindly offered to help us celebrate Thanksgiving with a formal meal, and some of the NSROC staff have been helping with recipes and with the food preparation. We’re all looking forward to a taste of home as we move into a day off tomorrow before completing the payload preparations next week.
Members of the VISIONS-2 team gather to help the Kings Bay staff cook a Thanksgiving meal, which the team will enjoy Saturday, November 24. From left to right: Koby Kraft, Glenn Maxfield, Jorge Camacho, Tim Wilson. Credit: Doug Rowland