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

Airborne Unlimited-
Monday

Airborne-Unmanned w/AUVSI-
Tuesday

Airborne Unlimited-
Wednesday

AMA Drone Report-
Thursday

Airborne Unlimited-
Friday

Airborne On ANN

Airborne 11.13.17

Airborne-Unmanned 11.14.17

Airborne 11.15.17

AMA Drone Report 11.16.17

Airborne 11.17.17

Airborne-YouTube

Airborne 11.13.17

Airborne-Unmanned 11.14.17

Airborne 11.15.17

AMA Drone Report 11.16.17

Airborne 11.17.17

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

Garmin Pilot Grows Feature Set For iOS And Android Mobile Devices

Multiple Features Added For Both Platforms Garmin has announced the addition of new features for the Garmin Pilot application for Android and iOS mobile devices. Garmin Pilot 6.2 f>[...]

AMA Drone Report 11.16.17: Drone Registration, Drone Journalists Jailed

Also: Terror Advisory, DRL Sim, SureFly Octocopter, Space Needle Drone Pilot, FAI-ASFC World Fly-In Expo A bill that includes a return to civilian drone registration has been inclu>[...]

Airborne-Unmanned 11.14.17: Drone Registration, AT&T's Flying COW, Pilot Charged

Also: Boeing Completes Acquisition, Drones For LAFD, DJI Seeks Transport Canada’s Help, Uber and NASA A defense authorization bill that includes a return to civilian drone re>[...]

Airborne 11.17.17: Cabri G2 Heli-Upgrade, NBAA/KSMO, USAF Pilot Shortage

Also: Electronic Flight Bags, SNC's Dream Chaser, flydubai Buys 225 737 MAX, Scottish Airshow Nixed The FAA has approved Service Bulletin 17-009 for the Guimbal Cabri G2 that allow>[...]

Airborne 11.15.17: XCOR BK, V-22 Osprey Milestone, GAMA 3rd Quarter Stats

Also: UK Airport Cancellation, Gone West: Robert Wagstaff, EASA Certifies Bell 505, USN's 1st MQ-4C Triton This is a heartbreaker, as we were big fans of XCOR Aerospace -- which fi>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

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