Fall 2018 Milestones for Parker Solar Probe

An illustration of Parker Solar Probe passing Venus. Credit: NASA/Johns Hopkins APL/Steve Gribben

Oct. 3, 2018 (about 4:45 a.m. EDT) — Parker Solar Probe performs its first Venus gravity assist. This maneuver — to be repeated six more times over the lifetime of the mission — will change Parker Solar Probe’s trajectory to take the spacecraft closer to the Sun.

Oct. 29, 2018 — Parker Solar Probe is expected to come within 27 million miles of the Sun. This is the record currently held by Helios 2, set in 1976.

Oct. 30, 2018 — Parker Solar Probe is expected to surpass a heliocentric speed of 153,454 miles per hour. This is the record for fastest spacecraft measured relative to the Sun, set by Helios 2 in 1976.

These speed and distance estimates could change after Parker Solar Probe performs its Venus gravity assist on Oct. 3.

Oct. 31 – Nov. 11, 2018 — Parker Solar Probe performs its first solar encounter. Throughout this period, the spacecraft will gather valuable science data. It will not be in contact with Earth because of the Sun’s interference and the orientation needed to keep the spacecraft’s heat shield between it and the Sun. The spacecraft is expected to reach its closest approach on Nov. 6. Like the distance and speed records, this estimate could change after the Venus gravity assist.

December 2018 — Parker Solar Probe will downlink the science data gathered during its first solar encounter.

You can keep up with Parker Solar Probe’s real-time speed and position online, with updates every hour. More mission milestones are also available.

Article Courtesy of NASA Sun Science

NASA’s ICON launch now targeted for Oct. 26

NASA and Northrop Grumman are now targeting Friday, Oct. 26, 2018, for the launch of the agency’s Ionospheric Connection Explorer, or ICON. The spacecraft will launch aboard a Northrop Grumman Pegasus XL rocket from Cape Canaveral Air Force Station in Florida. The launch window is 90 minutes starting at 4 a.m. EDT and ICON will be launching off the coast of Daytona at 39,000 ft. at a heading of 105.0 degrees. The launch was postponed from Saturday, Oct. 6, 2018, to allow time to address a quality issue with a vendor-supplied electrical connector on the launch vehicle, which has been resolved.
Photo Credit: NASA

MAVEN entered Mars orbit four years ago today

The MAVEN spacecraft entered orbit at Mars on September 21, 2014, and has been making unprecedented discoveries about the evolution of Mars’ climate and potential for habitability ever since.

Congratulations to the entire MAVEN team—with partners across the globe—on such a wonderfully successful mission.

Four more years! Four more years!

Courtesy:

NASA’s MAVEN Mission to Mars

NASA Goddard
Lockheed Martin
University of Colorado Boulder
Laboratory for Atmospheric and Space Physics
UC Berkeley Space Sciences Lab

NASA’s GOLD instrument captures its first image of the Earth

Shown here is the “first light” image of ultraviolet atomic oxygen emission (135.6 nm wavelength) from the Earth’s upper atmosphere captured by NASA’s GOLD instrument. It was taken at approximately 6 a.m. local time, near sunrise in eastern South America. The colors correspond to emission brightness, with the strongest shown in red and the weakest in blue. This emission is produced at altitudes around 160 km (note how it extends above the Earth’s surface on the horizon), when the Earth’s upper atmosphere absorbs high energy photons and particles. The aurora, at the top and bottom of the image, and daytime airglow, on the right hand side, are also visible. An ultraviolet star, 66 Ophiuchi (HD 164284), is visible above the western horizon of the Earth. Outlines of the continents and a latitude-longitude grid have been added for reference. (Courtesy LASP/GOLD science team)

NASA’s Global-scale Observations of the Limb and Disk, or GOLD, instrument powered on and opened its cover to scan the Earth for the first time, resulting in a “first light” image of the Western Hemisphere in the ultraviolet. GOLD will provide unprecedented global-scale imaging of the temperature and composition at the dynamic boundary between Earth’s atmosphere and space.

The instrument was launched from Kourou, French Guiana, on Jan. 25, 2018, onboard the SES-14 satellite and reached geostationary orbit in June 2018. After checkout of the satellite and communications payload, GOLD commissioning—the period during which the instrument performance is assessed—began on Sept. 4.

Team scientists conducted one day of observations on Sept. 11, during instrument checkout, enabling them to produce GOLD’s “first light” image shown here. Commissioning will run through early October, as the team continues to prepare the instrument for its planned two-year science mission.

Gold and the link to the ICON Mission, complete article

Illuminating First Light Data from Parker Solar Probe

The right side of this image — from WISPR’s (Wide-field Imager for Solar Probe) inner telescope — has a 40-degree field of view, with its right edge 58.5 degrees from the Sun’s center. The left side of the image is from WISPR’s outer telescope, which has a 58-degree field of view and extends to about 160 degrees from the Sun. There is a parallax of about 13 degrees in the apparent position of the Sun as viewed from Earth and from Parker Solar Probe. Credit: NASA/Naval Research Laboratory/Parker Solar Probe

Just over a month into its mission, Parker Solar Probe has returned first-light data from each of its four instrument suites. These early observations – while not yet examples of the key science observations Parker Solar Probe will take closer to the Sun – show that each of the instruments is working well. 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.

“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.

The mission’s first close approach to the Sun will be in November 2018, but even now, the instruments are able to gather measurements of what’s happening in the solar wind closer to Earth. Let’s take a look at what they’ve seen so far.

The complete Article and Data.

ICON UPDATE: Launch Delay to Address Technical Issues

NASA and Northrop Grumman have decided to delay the launch of the agency’s Ionospheric Connection Explorer, or ICON, to allow time to address a quality issue with a vendor-supplied electrical connector on the launch vehicle. Northrop Grumman does not expect an extended delay and will work with the range to determine a new launch date. The ICON spacecraft will launch aboard a Northrop Grumman Pegasus XL rocket from Cape Canaveral Air Force Station in Florida.

Parker Solar Probe is Movin

Parker Solar Probe was launched from Cape Canaveral Air Force Station’s launch complex 37 on August 12, 2018 on its “Mission to Touch the Sun”. The APL Mission Operations and Instrument Teams are beginning the commissioning of the instruments on the spacecraft. Parker Solar Probe is rapidly moving toward its initial encounter with the sun and is now 16.36 million miles from the Earth and is traveling at 45,905 miles per hour, as of 1pm ET today, 9/6/18. The first of sevenVenus Gravity Assist flyby’s will happen on October 3rd 2018.

Want to track the spacecraft as it speeds towards the Sun?

Follow along: Stats update once an hour.