As NASA's Parker Solar Probe completes its latest swing around the Sun, it's doing so in full view of dozens of other spacecraft and ground-based telescopes.
Telescopes Trained on Parker Solar Probe’s Latest Pass Around the Sun

As NASA's Parker Solar Probe completes its latest swing around the Sun, it's doing so in full view of dozens of other spacecraft and ground-based telescopes.
Following completion of a third planned start and then cutoff of the United Launch Alliance Atlas V 541 Centaur main engine, the National Oceanic and Atmospheric Administration's (NOAA) Geostationary Operational Environmental Satellite-T (GOES-T) satellite separated from the spacecraft and is continuing on its journey to help meteorologists observe and predict local weather events, including thunderstorms, …
The United Launch Alliance Atlas V 541 Centaur main engine successfully restarted and then cut off again just a few minutes later as the GOES-T mission heads into a planned coast phase.
This will last approximately three hours, after which the Centaur main engine will start and then cut off for a third – and final – time.
Check out continuing coverage on NASA TV, the NASA app, or the agency's website. Check back here for a live report on GOES-T's separation from the rocket.
Have you ever wondered what the three numbers (541) on United Launch Alliance's Atlas V 541 rocket stand for? The numbers signify a payload fairing, or nose cone, that is approximately 5 meters (16.4 feet) in diameter; 4 solid-rocket boosters fastened alongside the central common core booster; and a 1-engine Centaur upper stage. Just an …
3, 2, 1 … LIFTOFF! The National Oceanic and Atmospheric Administration's (NOAA) Geostationary Operational Environmental Satellite-T (GOES-T) satellite spacecraft lights up the late afternoon Florida sky as it roars off the launch pad at Cape Canaveral Space Force Station on a joint effort with NASA to help meteorologists observe and predict local weather events. Stay …
NASA Launch Director Tim Dunn gives the final ‘go' for NOAA's Geostationary Operational Environmental Satellite-T (GOES-T) launch! The skies on Florida's Space Coast soon will be alight as the United Launch Alliance Atlas V 541 rocket's Centaur engines fire up to launch the mission into space.
In just about 15 minutes, the United Launch Alliance Atlas V 541 rocket engines will roar to life, sending NOAA's Geostationary Operational Environmental Satellite-T (GOES-T) satellite into space. Excitement is building as the mission nears launch. A joint effort between NASA and NOAA, GOES-T will help meteorologists observe and predict local weather events, including thunderstorms, …
The weather outlook for today’s National Oceanic and Atmospheric Administration’s (NOAA) Geostationary Operational Environmental Satellite-T (GOES-T) satellite launch from Cape Canaveral Space Force Station remains positive. Weather officials with the Space Force Station’s 45th Weather Squadron predict an 80% chance of favorable conditions for liftoff from Space Launch Complex 41.
The launch, which is managed by NASA’s Launch Services Program, based at NASA’s Kennedy Space Center, is targeted for 4:38 p.m. EST. There is a two-hour launch window.
“Liftoff winds are going to be our primary concern with a smaller concern coming from some of those passing cumulus clouds,” said Arlena Moses, launch weather officer with the 45th Weather Squadron.
Tune in to NASA TV, the NASA app, or the agency’s website, starting now for launch day commentary, interviews, and everything you need to know about the launch of today’s GOES-T mission.
You can also stay right here for blog updates throughout today’s launch day milestones. Liftoff, aboard a United Launch Alliance Atlas V 541 rocket, is set for 4:38 p.m. EST from Cape Canaveral Space Force Station’s Launch Complex 41.
Here are some fun facts you may not know about National Oceanic and Atmospheric Administration's (NOAA) Geostationary Operational Environmental Satellite-T (GOES-T) satellite and GOES-R Series missions: NOAA's GOES-T is the third satellite in the Geostationary Operational Environmental Satellites (GOES) – R Series, the Western Hemisphere's most sophisticated weather observing and environmental monitoring system. After GOES-T …