NASA Highlights Science on Next Orbital ATK Mission to Space Station
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Following release from the International Space Station by ground controllers at 9:23 a.m. EDT, SpaceX’s Dragon cargo spacecraft splashed down in the Pacific Ocean at about 3 p.m. This marks the end of the company’s 14th contracted cargo resupply mission to the space station for NASA.
A boat will take the Dragon to the port at Long Beach, where some cargo will be removed and returned to NASA. Dragon will be prepared for a return journey to SpaceX’s test facility in McGregor, Texas, for processing.
Dragon is returning more than 4,000 pounds of NASA cargo and science samples from a variety of technological and biological studies about the space station. Some of the science returning on this flight includes samples from the Metabolic Tracking study that could lead to more effective, less expensive drugs, the APEX-06 investigation examining how to effectively grow crops in space, and the Fruit Fly Lab–03 investigation to research disease genes and immunity to help prepare for future long-duration human space exploration missions.
Keep up to date with the latest news from the crew living in space by following https://blogs.nasa.gov/spacestation/, @space_station and @ISS_Research on Twitter, and the ISS Facebook and ISS Instagram accounts.
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Mark Garcia
ISS
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Robotic flight controllers released the SpaceX Dragon cargo spacecraft from the International Space Station’s robotic arm at 9:23 a.m. EDT, and Expedition 55 Flight Engineer Scott Tingle of NASA is monitoring its departure.
Dragon’s thrusters will be fired to move the spacecraft a safe distance from the station before SpaceX flight controllers in Hawthorne, California, command its deorbit burn about 2:06 p.m. The capsule will splashdown about 3 p.m. in the Pacific Ocean, where recovery forces will retrieve the capsule and its more than 4,000 pounds of cargo, including a variety of technological and biological studies.
The deorbit burn and splashdown will not be broadcast on NASA TV.
NASA and the Center for the Advancement of Science in Space (CASIS), the non-profit organization that manages research aboard the U.S. National Laboratory portion of the space station, will receive time-sensitive samples and begin working with researchers to process and distribute them within 48 hours of splashdown.
Dragon is the only space station resupply spacecraft currently capable of returning cargo to Earth, and this was the second trip to the orbiting laboratory for this spacecraft, which completed its first mission nearly two years ago. SpaceX launched its 14th NASA-contracted commercial resupply mission to the station April 2 from Space Launch Complex 40 from Cape Canaveral Air Force Station in Florida on a Falcon 9 rocket that also previously launched its 12th NASA-contracted commercial resupply mission to the station.
Keep up to date with the latest news from the crew living in space by following https://blogs.nasa.gov/spacestation/, @space_station and @ISS_Research on Twitter, and the ISS Facebook and ISS Instagram accounts.
Get The Details…
Mark Garcia
ISS
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The very welcome announcement of the massive allocation by ComReg of low-band VHF spectrum to the Amateur Service raised some questions about the wording in the document.
Seán Nolan EI7CD, IRTS/ComReg Liaison, has kindly provided this clarification:
The use of AMSAT in ComReg Document 09/45 R4 is regrettable and is a legacy issue carried forward from earlier versions of the Amateur Station Licence Guidelines. Most of ComReg’s documents are commercially sensitive and no draft documents (other than consultations) are published. Although documents relating to amateur radio are not commercially sensitive we do fall under the non-publishing of draft documents embargo.
The use of AMSAT somewhat randomly confuses the actual situation regarding satellite operation. The frequencies in Annex 1 of the Guidelines are available to all CEPT Class 1 and Class 2 licensees. So far as satellite operation is concerned amateurs here can use the satellite segments mentioned (435-438 MHz; 1260-1270 MHz: 5650-5670 MHz –uplink and 5830-5850 MHz –downlink). The “All modes” in the Modes column in Annex 1 covers the relevant operating mode for the satellite concerned. Similarly 10450-10500 MHz can be used for satellite communications.
In the Modes column of Annex 1, all modes are indicated. In many cases “including digimodes” is stated but of course ‘all modes’ includes digimodes. In the definitions in Annex 1 digimodes are defined as “Any digital mode such as —–“. So DSTAR, DMR etc would be included.
We will of course work with ComReg to secure additional spectrum and facilities. The present initiative by ComReg is as a result of such work by IRTS. In this context we would hope in the future to get 2400-2450 MHz among the bands on general release.
Finally some people are wondering why we didn’t get 52-54 MHz. We have of course been seeking this. However, as you know the question of granting 52-54 MHz to Region 1 of the ITU to align with ITU Regions 2 and 3 is the subject of Agenda Item 1.1 of WRC-19. ComReg will be involved in in seeking to establish a CEPT Common Position and so will not move on it before WRC-19. If the IARU WRC-19 initiative is not successful we will seek a national allocation at 50-54 MHz under Article 4.4 of the ITU Radio Regulations.
I realise that the somewhat random use of “AMSAT” and the use of “All Modes” in some places and “All modes including digimodes” in others can lead to confusion. I hope my attempt to ‘clarify’ helps.
Best regards,
Seán Nolan EI7CD
IRTS/ComReg Liaison
The new ComReg amateur radio document can be downloaded from
http://comreg.ie/publication-download/amateur-station-license-guidelines
Amateur radio regulatory changes in Eire
https://amsat-uk.org/2018/05/01/amateur-radio-regulatory-changes-in-eire/
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m5aka
AMSAT-UK
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