Tuesday, September 25, 2018

NASA’s Parker Solar Probe Captures 'First Light' Images


These are the first images from WISPR, short for the Wide-field Imager for Parker Solar Probe taken on Sept. 9, 2018. Researchers studied the images to determine the instrument was pointed as expected, using celestial landmarks as their guide. The left image shows the Milky Way, looking at the galactic center. In the right image, there is a distinctive cluster of four stars near the right edge that is in the constellation Scorpius. The planet Jupiter is also visible in the right image as the bright object slightly right of center. The Sun, not visible in the image, is far off to the right of the image’s right edge.  Credits: NASA/Naval Research Laboratory/Parker Solar Probe
Ken Kremer  --   SpaceUpClose.com  --   24 September 2018

KENNEDY SPACE CENTER, FL –  Just a month after blastoff from the Florida Space Coast, NASA’s Parker Solar Probe has captured ‘First Light’ images from all four of its science instruments - including stunning views of the Milky Way  confirming that they are all functioning well on humanity’s first mission to ‘Touch the Sun.’

As of today Parker is more than 26 million miles (41 million km) from Earth. 
Parker Solar Probe Mission Trajectory and Current Position.  Credit: NASA/APL/Parker Solar Probe

“We will be working 24/7 to get the instruments ready and commissioned in time for the 1st Venus flyby and 1st solar perihelion” set for November 5, 2018, said Nicki Fox, now director of NASA’s Heliophysics Division in a post launch interview with Space UpClose at the Kennedy Space Center.  Fox served previously as Parker project scientist at APL. 

The calibration and checkout data demonstrate that “each of the instruments is working well” says NASA.

For example, the lead image above was captured by the WISPR instrument, short for the Wide-field Imager for Parker Solar Probe, on Sept. 9, 2018.

The left side of the beautiful image shows the Milky Way looking at the galactic center from WISPR’s outer telescope.  It has a 58-degree field of view and extends to about 160 degrees from the Sun. 

Jupiter is visible near the center of the right side image from WISPR’s inner telescope.  It has a 40-degree field of view and extends 58.5 degrees from the Sun’s center on the right side edge. 

There is a parallax of about 13 degrees in the apparent position of the Sun as viewed from Earth and from Parker Solar Probe.

"All instruments returned data that not only serves for calibration, but also captures glimpses of what we expect them to measure near the Sun to solve the mysteries of the solar atmosphere, the corona,” said Nour Raouafi, Parker Solar Probe project scientist at the Johns Hopkins University Applied Physics Lab in Laurel, Maryland, in a statement.



First Light imagery from ISʘIS instrument that measures high-energy particles associated solar activity like flares and coronal mass ejections.  ISʘIS’ two Energetic Particle Instruments cover a range of energies for these activity-driven particles: EPI-Lo focuses on the lower end of the energy spectrum, while EPI-Hi measures the more energetic particles. Credit: NASA/Princeton University/Parker Solar Probe

“The instruments work in tandem to measure the Sun’s electric and magnetic fields, particles from the Sun and the solar wind, and capture images of the environment around the spacecraft.”

Here’s a description of WISPR from Russ Howard, principal investigator from the Naval Research Laboratory. He studied the images to determine the instrument was pointing as expected, using celestial landmarks as a guide.

“There is a very distinctive cluster of stars on the overlap of the two images. The brightest is the star Antares-alpha, which is in the constellation Scorpius and is about 90 degrees from the Sun,” said Howard.

The Sun, not visible in the image, is far off to the right of the image’s right edge. The planet Jupiter is visible in the image captured by WISPR’s inner telescope — it’s the bright object slightly right of center in the right-hand panel of the image.

“The left side of the photo shows a beautiful image of the Milky Way, looking at the galactic center,” said Howard.

The exposure time – i.e. the length of time that light was gathered for this image, an interval which can be shortened or lengthened to make the image darker or brighter – is on the lower end, and there’s a reason: “We intentionally wanted to be on the low side in case there was something very bright when we first turned on, but it is primarily because we are looking so far from the Sun,” explains Howard.

As the spacecraft approaches the Sun, its orientation will change, and so will WISPR’s images. With each solar orbit, WISPR will capture images of the structures flowing out from the corona. While measurements have been made before by other instruments at a distance of 1 AU – or approximately 93 million miles – WISPR will get much closer, about 95% of the way to the Sun from Earth, dramatically increasing the ability to see what’s occurring in that region with a much finer scale than ever before and providing a more pristine picture of the solar corona.



The FIELDS instrument suite aboard Parker Solar Probe captures the scale and shape of electric and magnetic fields in the Sun’s atmosphere. This plot was updated on Sept. 21, 2018, to better illustrate the comparison between Parker Solar Probe’s data (center and bottom) and the data from the Wind mission (top). Both versions are available from NASA’s Scientific Visualization Studio.   Credit: NASA/UC Berkeley/Parker Solar Probe/Wind
NASA’s daring Parker Solar Probe mission will fly at never before attained speeds through the hellish atmosphere of our Sun’s corona for the first time in human history.

Parker will travel at unprecedented speeds of up to 430,000 MPH, some 700,000 kph as at swings by the sun 24 times over the next 7 years via orbits shaped by 7 flybys of Venus.  

The team must work expeditiously because the first Venus flyby will take place on Oct. 3, 2018, at 4:44 a.m. EDT and the first perihelion flyby of the Sun on Nov. 5, 2018, at 10:27 p.m. EST (Nov. 6, 2018, at 03:27 UTC).

“The spacecraft will use Venus to slightly slow itself and adjust its trajectory for an optimal path toward first perihelion of the Sun on Nov. 5, 2018.” 


The United Launch Alliance Delta IV Heavy rocket launches NASA's Parker Solar Probe to touch the Sun and dive into the corona, Sunday, Aug. 12, 2018, at 3:31 a.m. EDT from Space Launch Complex 37 at Cape Canaveral Air Force Station, Florida. From camera at pad. Credit: Ken Kremer/kenkremer.com/spaceupclose.com
The mission began with a dazzling middle-of-the-night blastoff of the mighty Delta IV Heavy rocket in the wee hours of Sunday morning, Aug. 12 – and delivered the car sized spacecraft to its intended trajectory towards Venus and the Sun. 


Streaking to the Sun!! NASA’s historic Parker Solar Probe is on its way to ‘Touch the Sun’ for the first time in November 2018 in this long duration streak shot taken after 3:31 AM EDT blastoff Aug. 12, 2018 from Launch Complex 37 at Cape Canaveral Air Force Station, Florida. The probe is healthy and power positive after delivery to space by United Launch Alliance Delta IV Heavy rocket. Credit: Ken Kremer/kenkremer.com/spaceupclose.com
The 23-story tall triple barreled United Launch Alliance Delta IV Heavy rocket successfully launched at 3:31 a.m. EDT Aug. 12 from the Florida Space Coast and put on a brilliant display of fire power with 2.1 million pounds of thrust spewing forth from the trio of liquid oxygen/liquid hydrogen RS-68A main engines that quickly turned night into day a few hours before Sundays natural sunrise under nearly cloud-free skies.

Check out our Space UpClose gallery of photos and videos. Plus my BBC TV World News prelaunch interview. 

Here’s my Parker launch video from a remote camera set at pad 37:




Video Caption: Launch of NASA’s Parker Solar Probe on United Launch Alliance Delta IV Heavy rocket on Aug. 12, 2018, at 3:31 a.m. EDT from Launch Complex 37 at Cape Canaveral Air Force Station, Florida on humanity’s 1st mission to our sun that will fly through the sun’s atmosphere or corona - as seen in this remote camera video taken at the pad. Credit: Ken Kremer/kenkremer.com/spaceupclose.com

Here’s my BBC TV World News Pre-Launch interview:

Watch for Ken’s continuing onsite coverage of NASA, SpaceX, ULA, Boeing, Lockheed Martin, Orbital ATK and more space and mission reports direct from the Kennedy Space Center, Cape Canaveral Air Force Station, Florida and Wallops Flight Facility, Virginia.

Stay tuned here for Ken's continuing Earth and Planetary science and human spaceflight news: www.kenkremer.com –www.spaceupclose.com – twitter @ken_kremer – email: ken at kenkremer.com 

Dr. Kremer is a research scientist and journalist based in the KSC area. 


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Ken’s photos are for sale and he is available for lectures and outreach events




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