Quote from: Alexphysics on 07/25/2022 02:40 pmQuote from: Citabria on 07/25/2022 01:39 pmI was hoping to catch the second stage de-orbit burn over Michigan that night but the tracking display on the audio webcast showed impact south of Australia on the first orbit. So, was the insertion sub-orbital, requiring a circularization burn from Dragon? Much like a Shuttle launch! Is that a new trajectory for Dragon?Mmmm I very much doubt you'd be able to see the deorbit burn over Michigan given it was done over the arabian peninsula Thank you for that info. So, is that a new launch trajectory for Dragon?Where can I find out the location of de-orbit burns for future launches?
Quote from: Citabria on 07/25/2022 01:39 pmI was hoping to catch the second stage de-orbit burn over Michigan that night but the tracking display on the audio webcast showed impact south of Australia on the first orbit. So, was the insertion sub-orbital, requiring a circularization burn from Dragon? Much like a Shuttle launch! Is that a new trajectory for Dragon?Mmmm I very much doubt you'd be able to see the deorbit burn over Michigan given it was done over the arabian peninsula
I was hoping to catch the second stage de-orbit burn over Michigan that night but the tracking display on the audio webcast showed impact south of Australia on the first orbit. So, was the insertion sub-orbital, requiring a circularization burn from Dragon? Much like a Shuttle launch! Is that a new trajectory for Dragon?
Quote from: Citabria on 07/25/2022 02:59 pmQuote from: Alexphysics on 07/25/2022 02:40 pmQuote from: Citabria on 07/25/2022 01:39 pmI was hoping to catch the second stage de-orbit burn over Michigan that night but the tracking display on the audio webcast showed impact south of Australia on the first orbit. So, was the insertion sub-orbital, requiring a circularization burn from Dragon? Much like a Shuttle launch! Is that a new trajectory for Dragon?Mmmm I very much doubt you'd be able to see the deorbit burn over Michigan given it was done over the arabian peninsula Thank you for that info. So, is that a new launch trajectory for Dragon?Where can I find out the location of de-orbit burns for future launches?Nope, it's the normal launch trajectory as always. Second stage reentry normally occurs within the same orbit or next orbit at most for about 90% of the launches these days (Dragon, Starlink mainly).
https://twitter.com/Apaiss1/status/1551346414810169344https://twitter.com/Apaiss1/status/1551406596542107650https://twitter.com/Apaiss1/status/1551407916661587971https://twitter.com/planet4589/status/1551412885049544704
1. Grab DEXTRE, store on MBS2. Move the MBS to WS33. Walk off SSRMS to NODE2 (NODE2 <PDGF> SSRMS, MBS <PDGF> DEXTRE)4. Grab DEXTRE (NODE2 <PDGF> SSRMS <-> DEXTRE | MBS )5. Extract EMIT with DEXTRE (NODE2 <PDGF> SSRMS <-> DEXTRE <MICROFIXTURE> EMIT)6. Drop off DEXTRE on the MBS (NODE2 <PDGF> SSRMS, MBS <-> DEXTRE <MICROFIXTURE> EMIT)7. Walkoff the SSRMS to MBS (SSRMS <PDGF> MBS, MBS <-> DEXTRE <MICROFIXTURE> EMIT)8. Grab DEXTRE (MBS <PDGF> SSRMS <-> DEXTRE <MICROFIXTURE> EMIT)9. Move MBS to worksite 7 or 810. Install EMIT on the ELC
We stowed the SPDM on MBS PDGF 2 and then walked off from Node2 PDGF to MBS PDGF 3. Then we picked up the SPDM.
It looks like the first time sequence that I had speculated about was executed and performed as listed (as confirmed by NASA's Kam Bahrami).Quote from: cohberg on 07/13/2022 03:09 pm1. Grab DEXTRE, store on MBS2. Move the MBS to WS33. Walk off SSRMS to NODE2 (NODE2 <PDGF> SSRMS, MBS <PDGF> DEXTRE)4. Grab DEXTRE (NODE2 <PDGF> SSRMS <-> DEXTRE | MBS )5. Extract EMIT with DEXTRE (NODE2 <PDGF> SSRMS <-> DEXTRE <MICROFIXTURE> EMIT)6. Drop off DEXTRE on the MBS (NODE2 <PDGF> SSRMS, MBS <-> DEXTRE <MICROFIXTURE> EMIT)7. Walkoff the SSRMS to MBS (SSRMS <PDGF> MBS, MBS <-> DEXTRE <MICROFIXTURE> EMIT)8. Grab DEXTRE (MBS <PDGF> SSRMS <-> DEXTRE <MICROFIXTURE> EMIT)9. Move MBS to worksite 7 or 810. Install EMIT on the ELCQuote from: Kam Bahrami (International Space Station Robotics Flight Controller)We stowed the SPDM on MBS PDGF 2 and then walked off from Node2 PDGF to MBS PDGF 3. Then we picked up the SPDM.This new / first time process now allows for cargo extraction from the fwd docking position and should reduce the need for relocations when removing smaller payloads with the SSRMS + SPDM. Back to Zenith for CRS-26 as iROSA needs to be extracted directly with the SSRMS.
This would be Shannon departing for the Gulf of Mexico to support upcoming CRS-25 splashdown.
130526Z AUG 22NAVAREA IV 803/22(11).GULF OF MEXICO.WESTERN NORTH ATLANTIC.FLORIDA.1. HAZARDOUS OPERATIONS, SPACE DEBRIS: A. 201840Z TO 201910Z AUG IN AREA BOUND BY 29-02.45N 080-13.80W, 28-51.00N 080-00.77W, 28-39.53N 080-13.80W, 28-51.00N 080-26.82W. B. 201835Z TO 201905Z AUG IN AREA BOUND BY 29-59.45N 080-40.02W, 29-48.00N 080-26.87W, 29-36.53N 080-40.02W, 29-48.00N 080-53.15W. C. 181915Z TO 181945Z AND 201830Z TO 201900Z AUG IN AREA BOUND BY 31-06.47N 080-15.00W, 30-55.02N 080-01.67W, 30-43.50N 080-15.00W, 30-55.02N 080-28.32W. D. 191920Z TO 191950Z, 201040Z TO 201110Z AND 201900Z TO 201930Z AUG IN AREA BOUND BY 29-54.42N 086-10.97W, 29-42.95N 085-57.83W, 29-31.48N 086-10.97W, 29-42.95N 086-24.12W. E. 191925Z TO 191955Z, 201045Z TO 201115Z AND 201905Z TO 201935Z AUG IN AREA BOUND BY 29-59.45N 087-30.00W, 29-48.00N 087-16.85W, 29-36.53N 087-30.00W, 29-48.00N 087-43.13W. F. 191915Z TO 191945Z AND 201855Z TO 201925Z AUG IN AREA BOUND BY 29-28.43N 084-12.00W, 29-16.97N 083-58.92W, 29-05.52N 084-12.00W, 29-16.97N 084-25.07W. G. 191920Z TO 191950Z AND 201855Z TO 201925Z AUG IN AREA BOUND BY 28-17.45N 083-54.00W, 28-06.00N 083-41.03W, 27-54.53N 083-54.00W, 28-06.00N 084-06.95W.2. CANCEL THIS MSG 202035Z AUG 22.
NGA Space Debris notice for splashdown.
171848Z AUG 22NAVAREA IV 821/22(11).GULF OF MEXICO.WESTERN NORTH ATLANTIC.FLORIDA.1. HAZARDOUS OPERATIONS, SPACE DEBRIS: A. 201840Z TO 201910Z AND 210950Z 211020Z AUG IN AREA BOUND BY 29-02.45N 080-13.80W, 28-51.00N 080-00.79W, 28-39.53N 080-13.80W, 28-51.00N 080-26.81W. B. 201835Z TO 201905Z AND 210955Z TO 211025Z AUG IN AREA BOUND BY 29-59.45N 080-40.02W, 29-48.00N 080-26.87W, 29-36.53N 080-40.02W, 29-48.00N 080-53.15W. C. 201830Z TO 201900Z AND 21100Z TO 211030Z AUG IN AREA BOUND BY 31-06.47N 080-15.00W, 30-55.02N 080-01.67W, 30-43.50N 080-15.00W, 30-55.02N 080-28.32W. D. 201040Z TO 201110Z AND 201900Z TO 201930Z AUG IN AREA BOUND BY 29-54.40N 086-10.97W, 29-42.95N 085-57.83W, 29-31.49N 086-10.97W, 29-42.95N 086-24.12W. E. 201905Z TO 201935Z AUG IN AREA BOUND BY 29-59.45N 087-30.00W, 29-48.00N 087-16.85W, 29-36.53N 087-30.00W, 29-48.00N 087-43.13W. F. 191915Z TO 191945Z AND 201855Z TO 201925Z AND 211010Z TO 211040Z AUG IN AREA BOUND BY 29-28.43N 084-12.00W, 29-16.96N 083-58.92W, 29-05.51N 084-12.00W, 29-16.97N 084-25.07W. G. 191920Z TO 191950Z AND 201855Z TO 201925Z AND 211000Z TO 211030Z AUG IN THE AREA BOUND BY 28-17.45N 083-54.00W, 28-06.00N 083-41.03W, 27-54.53N 083-54.00W, 28-06.00N 084-06.95W.2. CANCEL NAVAREA IV 803/22.3. CANCEL THIS MSG 211140Z AUG 22.
Aug 17, 2022SpaceX CRS-25 Dragon Returns to Earth with Scientific Hardware and SamplesSpaceX’s 25th commercial resupply mission (SpaceX CRS-25) is scheduled to return home from the International Space Station on August 19. A Dragon spacecraft will splashdown off the coast of Florida carrying samples and hardware from multiple investigations, allowing researchers to continue data collection and analysis on the ground.Read more about the equipment and samples making their way back to Earth:Spacewalk suit analysisAfter crew members successfully completed a spacewalk on March 23, 2022, they discovered a thin layer of moisture on the inner surface and on an absorption pad inside European Space Agency (ESA) astronaut Matthias Maurer’s helmet following airlock re-pressurization. With the support of teams on the ground, the crew expedited Maurer’s helmet removal and gathered data. Key components of the spacesuit Maurer used, known as an Extravehicular Mobility Unit, are scheduled to return to the ground on SpaceX CRS-25 for further analysis and to address any possible fixes that may be needed. The crew remains in good health, continuing their activities on the station, and there are no planned U.S operating segment spacewalks in the near future.Keeping it coolThe Spacesuit Evaporation Rejection Flight Experiment (SERFE), a NASA investigation, returns to Earth for disassembly and inspection of the suit components. SERFE demonstrates and evaluates thermal control technology using water evaporation techniques to maintain appropriate temperatures for the crew and equipment during spacewalks. SERFE also investigates whether microgravity affects performance of the technology and how the technology affects the contamination and corrosion of spacesuit material.Building radiation biosensorsSamples from the NASA-sponsored BioSentinel ISS Control Experiment (BioSentinel) return to Earth for optical measurements to examine radiation damage accumulated by Saccharomyces cerevisiae cells during their time in space. S. cerevisiae, or budding yeast, is a model organism that shares similar cellular processes with human cells, specifically how they respond to DNA damage caused by ionizing radiation. The experiment aims to develop biosensors that study the effects of radiation on organisms to prepare for long-duration missions in space.BioSentinel also was chosen to fly aboard the Artemis I mission as a secondary payload. The investigation deploys dry yeast cells stored in microfluidic cards inside a CubeSat into a lunar fly-by trajectory. After the lunar fly-by, scientists rehydrate the microfluidic cards. One set of microfluidic cards is scheduled to activate in the occurrence of a solar particle event. These powerful radiation storms create a significant risk to astronauts on long-duration missions. Researchers plan to compare data downlinked from the CubeSat with that from identical payloads aboard the station and on Earth to interpret the effects of space radiation exposure. Results could potentially reduce the risks associated with long-term human exploration.First-aid of the futureThe ESA-sponsored Bioprint FirstAid experiment demonstrates a handheld bioprinter for Earth and space applications. The bioprinter uses additive manufacturing to print viable cells, biomaterials, and biological molecules for possible use in skin reconstruction. Current bioprinting capabilities require large machinery and a long timeline. The handheld bioprinter aspires to use bio-inks containing the patient’s skin cells to cover a wound and accelerate healing. The technology could mitigate risks and treat injuries in case of an emergency on long-duration missions. On Earth, the bioprinter could act as a custom wound patch, allowing safe regenerative and personalized therapy. Samples are returning home aboard the Dragon capsule for comparison to samples printed on Earth.Space’s impact on materialsThe Materials International Space Station Experiment-15-NASA (MISSE-15-NASA) experiment examines how the low-Earth orbit environment affects new materials and components. Sponsored by the ISS National Lab, MISSE includes a series of tests experimenting with new materials and material configurations, including geopolymer lunar concrete, spacecraft materials, fiberglass composites, thin-film solar cells, wearable radiation protection materials, and more. Experiment hardware is returning to Earth for detailed analysis. Results could have applications for uses both in the harsh environments of space and on Earth.Live coverage of the departure begins on August 18 at 10:45 AM EDT on NASA Television, the agency’s website, and the NASA app. NASA will not broadcast the splashdown. Find updates on undocking, splashdown, and subsequent events on the space station blog.For daily updates, follow @ISS_Research Space Station Research and Technology News, or our Facebook. For opportunities to see the space station pass over your town, check out Spot the Station.Christine GiraldoInternational Space Station Program Research OfficeJohnson Space CenterLast Updated: Aug 17, 2022Editor: Ana Guzman
European Space Agency (ESA) astronaut Matthias Maurer demonstrates the Bioprint FirstAid prototype during a training session. This investigation demonstrates a handheld bioprinter that prints viable cells, biomaterials, and biological molecules for skin reconstruction. The technology could be used to treat crew injuries on future space exploration missions.Credits: OHB/DLR/ESA
ESA (European Space Agency) astronaut Matthias Maurer points the camera toward himself and takes a "space selfie" during a six-hour and 54-minute spacewalk to install thermal gear and electronic components on the International Space Station.Credits: NASA
ESA (European Space Agency) astronaut Matthias Maurer conducts the BioSentinel Hardware Relocation operations. This investigation examines the effects of radiation on yeast cells and could help protect crews on future long-duration missions.Credits: NASA
CRS-25 Cargo Dragon undocking from the ISS has been delayed 24 hours "due to unfavorable weather conditions, including an elevated chance of precipitation at the splashdown sites."
