July Fourth Collision Expected | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Recent Daily Episodes

Episode Date

AMA Drone Report

Airborne-Monday

Airborne-Tuesday

Airborne-Wednesday

Airborne-Thursday

Airborne-Friday

Airborne On ANN

ADR 02.20.17

Airborne 02.20.17

Airborne 02.21.17

Airborne 02.22.17

Airborne 02.23.17

Airborne 02.24.17

Airborne-HD On YouTube

ADR 02.20.17

Airborne 02.20.17

Airborne 02.21.17

Airborne 02.22.17

Airborne 02.23.17

Airborne 02.24.17

Mon, Jul 04, 2005

July Fourth Collision Expected

Deep Impact

The washing-machine-sized, copper-fortified impactor is expected to make a good impression on the comet Tempel 1 at 0152 EDT July 4th. It was successfully released from the flyby spacecraft at 0207 EDT on Sunday.

At release, the impactor was about 547,000 miles away from its target. Six hours prior to impactor release, the Deep Impact spacecraft successfully performed its fourth trajectory correction maneuver.

Soon after the trajectory maneuver was completed, the impactor engineers began the final steps that would lead to it being ready for free flight. In order to release the impactor, separation pyros fired allowing a spring to uncoil and separate the two spacecraft at a speed of about 0.78 mile per hour.

With Tempel 1 approaching at about 6 miles per second, there is little time for mission controllers to admire their work.

The flyby craft began a 14-minute long divert burn to slow its velocity relative to the impactor by 227 miles per hour, keeping it out of the path of the onrushing comet nucleus and setting the stage for a ringside seat of celestial fireworks to come less than 24 hours later.

Deep Impact mission controllers have confirmed the impactor's S-band antenna is talking to the flyby spacecraft. All impactor data including the expected remarkable images of its final dive into the comet's nucleus will be transmitted to the flyby craft -- which will then downlink them to Deep Space Network antennas that are listening 134 million kilometers (83 million miles) away.

While all is going as expected on the Deep Impact spacecraft the comet itself is putting on something of a show. The 8.7-mile-long comet Tempel 1 displayed another cometary outburst on July 2 when a massive, short-lived blast of ice or other particles escaped from inside the comet's nucleus and temporarily expanded the size and reflectivity of the cloud of dust and gas (coma) that surrounds it. The July 2 outburst is the fourth observed in the past three weeks.

Three of the outbursts appear to have originated from the same area on the surface of the nucleus but they do not occur every time that that area faces the Sun.

"The comet is definitely full of surprises so far and probably has a few more in store for us," said Deep Impact Project Manager Rick Grammier of NASA's Jet Propulsion Laboratory, Pasadena, Calif. "None of this overly concerns us nor has it forced us to modify our nominal mission plan."

FMI: www.nasa.gov/deepimpact

Advertisement

More News

Infamous RV-10 Lawsuit Against Van's Aircraft Dismissed

Years of Wasted Effort, Resources, and Worry Signal Ongoing Defects In US Tort Law When the news first came out, in 2015, that Van's Aircraft was sued for a considerable amount of >[...]

Airborne 02.22.17: CAF Dixie Wing P-63A, AF1 Price Cut, SLS Manned Flt?

Also: Drone Light Show, Remotely Piloted Helos, TFR Busts, Gulfstream, XTI Aircraft, CA Airlines, Icelandair After more than 40 years since it’s last flight, the Commemorativ>[...]

AMA Drone Report 02.20.17: DJI & AMA Team Up, MultiGP, Drone Advisory Committee

Also: Another Dumb FL Drone Law, AMA Expo East!, Spaceport America Drone Summit DJI and AMA have launched a joint program to promote safe and responsible drone operations, train pu>[...]

Airborne 02.21.17: NASA 'Space Poop' Challenge, Drone Advisory, Boeing

Also: Alphabet Balloons, Aero-Calendar, DJI-AMA, Solar Research, Dreamliners, F-35, ALPA NASA Johnson Space Center, in partnership with NASA Tournament Lab and online crowdsourcing>[...]

GA Aircraft Shipments And Billings Down Almost Across The Board

Only Uptick Was In Turboprop Airplanes, Turbine Helicopters Hit Hard The news is pretty much all bad, and some of it is really bad, in the GAMA 2016 year-end report of aircraft shi>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2017 Web Development & Design by Pauli Systems, LC