Payroll

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Payroll

The NASA Shared Services Center (NSSC) Payroll Office (NPO) reviews, validates, and delivers time and attendance data to the Department of the Interior (DOI) Interior Business Center (IBC) for NASA Centers.  NPO acts as liaison between Centers, employees and IBC for other payroll related activities such as supplemental payments, prior pay period adjustments  (PPPA) and settlement agreements.

2024 NASA Payroll Calendar

Employment Verification

POD A-12 – Non-Receipt of DD/EFT Payment

Payroll Schedule Calendars

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NASA

January’s Night Sky Notes: Connecting the ‘Dots’ with Asterisms

by Kat Troche of the Astronomical Society of the Pacific

In our December Night Sky Notes, we mentioned that the Orion constellation has a distinct hourglass shape that makes it easy to spot in the night sky. But what if we told you that this is not the complete constellation, but rather, an asterism?

An asterism is a pattern of stars in the night sky, forming shapes that make picking out constellations easy. Cultures throughout history have created these patterns as part of storytelling, honoring ancestors, and timekeeping. Orion’s hourglass is just one of many examples of this, but did you know Orion’s brightest knee is part of another asterism that spans six constellations, weaving together the Winter night sky? Many asterisms feature bright stars that are easily visible to the naked eye. Identify these key stars, and then connect the dots to reveal the shape.

Asterisms Through the Seasons

Try looking for these asterisms this season and beyond:

• Winter Circle – this asterism, also known as the Winter Hexagon, makes up a large portion of the Winter sky using stars Rigel, Aldebaran, Capella, Pollux, Procyon, and Sirius as its points. Similarly, the Winter Triangle can be found using Procyon, Sirius, and Betelgeuse as points. Orion’s Belt is also considered an asterism.
• Diamond of Virgo – this springtime asterism consists of the following stars: Arcturus, in the constellation Boötes; Cor Caroli, in Canes Venatici; Denebola in Leo, and Spica in Virgo. Sparkling at the center of this diamond is the bright cluster Coma Berenices, or Bernice’s Hair – an ancient asterism turned constellation!
• Summer Triangle – as the nights warm up, the Summer Triangle dominates the heavens. Comprising the bright stars Vega in Lyra, Deneb in Cygnus, and Altair in Aquila, this prominent asterism is the inspiration behind the cultural festival Tanabata. Also found is Cygnus the Swan, which makes up the Northern Cross asterism.
• Great Square of Pegasus – by Autumn, the Great Square of Pegasus can be seen. This square-shaped asterism takes up a large portion of the sky, and consists of the stars: Scheat, Alpheratz, Markab and Algenib.

Tracing these outlines can guide you to objects like galaxies and star clusters. The Hyades, for example, is an open star cluster in the Taurus constellation with evidence of rocky planetary debris. In 2013, Hubble Space Telescope’s Cosmic Origins Spectrograph was responsible for breaking down light into individual components. This observation detected low levels of carbon and silicon – a major chemical for planetary bodies. The Hyades can be found just outside the Winter Circle and is a favorite of both amateur and professional astronomers alike.

How to Spot Asterisms

• Use Star Maps and Star Apps – Using star maps or stargazing apps can help familiarize yourself with the constellations and asterisms of the night sky.
• Get Familiar with Constellations – Learning the major constellations and their broader shapes visible each season will make spotting asterisms easier.
• Use Celestial Landmarks –Orient yourself by using bright stars, or recognizable constellations. This will help you navigate the night sky and pinpoint specific asterisms. Vega in the Lyra constellation is a great example of this.

Learn more about how to stay warm while observing this Winter with our upcoming mid-month article on the Night Sky Network page through NASA’s website!

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Large Magellanic Fireworks

The Hubble Space Telescope captured this image of a stellar explosion throwing out sheets of debris in the nearby Large Magellanic Cloud galaxy on July 7, 2003. Since its 1990 launch, Hubble has changed our fundamental understanding of the universe; with over 1.5 million observations and 20,000+ papers published on its discoveries, Hubble is the most productive science mission in the history of NASA.

See more stunning images from Hubble – and experience some of the images through sound.

Image Credit: NASA, STScI/AURA

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Monika Luabeya

Mission Manager Update: VIPER Flight Rover Half-Built!

The VIPER team is hard at work building the flight vehicle that will be going to the surface of the Moon this time next year! In fact, we’re about halfway through the build, and you can interactively watch the process and hear from experts on the team, in various livestreams throughout the process.

All the science instrument teams have delivered their payloads to the VIPER Systems Integration & Test team, which will install them into the actual flight rover; in fact, all but one is already installed! This was a huge milestone over the past summer, and a frequent sticking point for many flight projects. I’m happy to have all the birds in the nest!

We also have taken delivery of most of the key pieces of hardware we acquired from our various external vendors. This is a very important milestone as well, since a large number of vendors of critical components have been quite behind schedule in their deliveries to the project, due to pandemic-era supply chain issues that continue to reverberate throughout the industry in some unexpected ways. It is good to have VIPER past this point in development, where we can now focus on bringing everything together into a functioning rover.

So now that we are building the flight article, we are able to see precisely how well our design plans are working in reality. There have been some reveals in the first half of the rover build, which we’ve had to navigate, including connector issues from vendors, where we’ve discovered and corrected some design and Foreign Object Debris issues, which prevented connectors from reliably working. We’ve also found some unexpected performance characteristics revealed by some vendor hardware, which we have had to then fold into our plans for how we operate VIPER…These issues and solutions are all part of the challenging process of building a flight article, and ensuring it can survive the very harsh environment of launch, landing, and operations on the lunar surface.

Once the team completes the flight rover assembly, the next step will be to test that rover in the kinds of environments it will see on the mission. This activity will be our primary focus in 2024, and our final step prior to delivering VIPER for launch integration.

Go VIPER!

– Dan Andrews, VIPER Project Manager

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Rachel Hoover

Media Invited to Learn About Moon-bound Langley Technologies

Hampton, Virginia — Media is invited to learn about two technologies developed at NASA’s Langley Research Center in Hampton, Virginia, that will launch to the Moon in the coming weeks aboard two flights under NASA’s Commercial Lunar Payload Services (CLPS) initiative.

During an event at Langley 9:30 a.m. Thursday, Jan. 4, researchers will discuss the following groundbreaking technologies developed at the center:

• Navigation Doppler Lidar (NDL), a laser-based sensor capable of providing precision vector velocity and altitude of space vehicles. NDL data is used to precisely navigate the vehicle and execute a gentle touchdown on the surface of the Moon, Mars, or other destinations in the solar system.

• Stereo Cameras for Lunar Plume-Surface Studies (SCALPSS), an array of small cameras placed around a lunar lander to take images of the interaction between the lander’s engine plume and the Moon’s surface. This will help researchers more accurately predict the effects from landing larger, heavier payloads in proximity to one other on the Moon and eventually Mars.

Media interested in attending should contact Joe Atkinson at joseph.s.atkinson@nasa.gov no later than noon, Wednesday, Jan. 3.

NDL is currently scheduled to launch from Kennedy Space Center in Florida no earlier than Jan. 8 on Astrobotics’ Peregrine 1 lander aboard a United Launch Alliance Vulcan Centaur rocket. Though this launch is part of NASA’s CLPS program, NDL is a critical system provided to Astrobotic by NASA and is not considered a CLPS payload. Peregrine 1 is expected to land on the Moon in late February.

NDL and SCALPSS 1.0 are currently scheduled to launch from Kennedy Space Center in Florida in February on Intuitive Machines’ Nova-C lander aboard a SpaceX Falcon 9 rocket. Both NDL and SCALPSS 1.0 are NASA CLPS payloads on this flight. Transit time to the Moon will take 4 to 5 days.

These CLPS flights will mark the United States’ first return to the Moon’s surface since the Apollo era. Commercial deliveries to the lunar surface with several providers continue to be part of NASA’s exploration efforts. Future CLPS deliveries could include more science experiments and technology demonstrations that further support the agency’s Artemis program.

Learn more about CLPS at:

https://www.nasa.gov/CLPS

Joe Atkinson
Langley Research Center, Hampton, Virginia
757-755-5375
joseph.s.atkinson@nasa.gov

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Julia L. Bradshaw