Exploring Plasma Energization in Space Turbulence
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Sensitron Space Diodes
AS9100 Registered ISO 9001:2000 Registered Your Power Solutions Provider MIL-PRF-19500 JANS Qualified MIL-PRF-38534 Class H Qualified Sensitron Space Diodes: The Sensitron Advantage Sensitron is a major supplier of discrete diodes to the worldwide hi-reliability market, with over 45 years heritage in diode manufacturing. Sensitron has received JANTXV/JANS qualification per MIL-PRF-19500 on 19 slash sheets, encompassing over 250 JANS part numbers. Sensitron manufactures their standard JANS qualified diodes to our “JANS PLUS” flow, which exceeds the already stringent MIL-PRF-19500 requirements while offering our customers a significant cost savings. SENSITRON DIODES SENSITRON SPACE HERITAGE__________________________________________________________________________ . Sensitron has supplied Axial and MELF diodes to the space market for over 15 years . Sensitron has shipped over 3 million JANS and JANS-equivalent diodes to space applications . Sensitron is the second largest supplier of Space Level Diodes with the second largest portfolio of Space Level Rectifiers, Zener Diodes, Transient Voltage Suppressors, and Switching Diodes in the world . Sensitron is JANTXV / JANS qualified on 19 individual MIL-PRF-19500 slash sheets, encompassing over 250 JANS part numbers, with more coming every quarter! VALUE PROPOSITION_______________________________________________________________________ . Sensitron offers the 2nd Largest QPL portfolio of JANS discrete diode semiconductors in the world, and offers highly competitive pricing . While continuing to add more JAN/JANTX/JANTXV and JANS products, we are now adding at “No Charge “ our JANS PLUS Program to all of our JANS product lines . Additional cost savings for our customer comes from our standard process flow: . All parts are Hot Solder Dipped, therefore there is no need to send Sensitron diodes to a third party plating house or to pay a manufacturer for “special plating services” . -
Cassiopeia A: on the Origin of the Hard X-Ray Continuum and the Implication of the Observed O Vııı Ly-Α/Ly-Β Distribution
A&A 365, L225–L230 (2001) Astronomy DOI: 10.1051/0004-6361:20000048 & c ESO 2001 Astrophysics Cassiopeia A: On the origin of the hard X-ray continuum and the implication of the observed O vııı Ly-α/Ly-β distribution J. A. M. Bleeker1, R. Willingale2, K. van der Heyden1, K. Dennerl3,J.S.Kaastra1, B. Aschenbach3, and J. Vink4,5,6 1 SRON National Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands 2 Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UK 3 Max-Planck-Institut f¨ur extraterrestrische Physik, Giessenbachstraße, 85740 Garching, Germany 4 Astrophysikalisches Institut Potsdam, An der Sternwarte 16, 14482 Potsdam, Germany 5 Columbia Astrophysics Laboratory, Columbia University, 550 West 120th Street, New York, NY 10027, USA 6 Chandra Fellow Received 6 October 2000 / Accepted 24 October 2000 Abstract. We present the first results on the hard X-ray continuum image (up to 15 keV) of the supernova remnant Cas A measured with the EPIC cameras onboard XMM-Newton. The data indicate that the hard X-ray tail, observed previously, that extends to energies above 100 keV does not originate in localised regions, like the bright X-ray knots and filaments or the primary blast wave, but is spread over the whole remnant with a rather flat hardness ratio of the 8–10 and 10–15 keV energy bands. This result does not support an interpretation of the hard X-radiation as synchrotron emission produced in the primary shock, in which case a limb brightened shell of hard X-ray emission close to the primary shock front is expected. -
Navigation Challenges During Exomars Trace Gas Orbiter Aerobraking Campaign
NON-PEER REVIEW Please select category below: Normal Paper Student Paper Young Engineer Paper Navigation Challenges during ExoMars Trace Gas Orbiter Aerobraking Campaign Gabriele Bellei 1, Francesco Castellini 2, Frank Budnik 3 and Robert Guilanyà Jané 4 1 DEIMOS Space located at ESA/ESOC, Robert-Bosch-Str. 5, Darmstadt, 64293, Germany 2 Telespazio VEGA located at ESA/ESOC, Robert-Bosch-Str. 5, Darmstadt, 64293, Germany 3 ESA/ESOC, Robert-Bosch-Str. 5, Darmstadt, 64293, Germany 4 GMV INSYEN located at ESA/ESOC, Robert-Bosch-Str. 5, Darmstadt, 64293, Germany Abstract The ExoMars Trace Gas Orbiter satellite spent one year in aerobraking operations at Mars, lowering its orbit period from one sol to about two hours. This delicate phase challenged the operations team and in particular the navigation system due to the highly unpredictable Mars atmosphere, which imposed almost continuous monitoring, navigation and re-planning activities. An aerobraking navigation concept was, for the first time at ESA, designed, implemented and validated on-ground and in-flight, based on radiometric tracking data and complemented by information extracted from spacecraft telemetry. The aerobraking operations were successfully completed, on time and without major difficulties, thanks to the simplicity and robustness of the selected approach. This paper describes the navigation concept, presents a recollection of the main in-flight results and gives a retrospective of the main lessons learnt during this activity. Keywords: ExoMars, Trace Gas Orbiter, aerobraking, navigation, orbit determination, Mars atmosphere, accelerometer Introduction The ExoMars program is a cooperation between the European Space Agency (ESA) and Roscosmos for the robotic exploration of the red planet. -
ESTRACK Facilities Manual (EFM) Issue 1 Revision 1 - 19/09/2008 S DOPS-ESTR-OPS-MAN-1001-OPS-ONN 2Page Ii of Ii
fDOCUMENT document title/ titre du document ESA TRACKING STATIONS (ESTRACK) FACILITIES MANUAL (EFM) prepared by/préparé par Peter Müller reference/réference DOPS-ESTR-OPS-MAN-1001-OPS-ONN issue/édition 1 revision/révision 1 date of issue/date d’édition 19/09/2008 status/état Approved/Applicable Document type/type de document SSM Distribution/distribution see next page a ESOC DOPS-ESTR-OPS-MAN-1001- OPS-ONN EFM Issue 1 Rev 1 European Space Operations Centre - Robert-Bosch-Strasse 5, 64293 Darmstadt - Germany Final 2008-09-19.doc Tel. (49) 615190-0 - Fax (49) 615190 495 www.esa.int ESTRACK Facilities Manual (EFM) issue 1 revision 1 - 19/09/2008 s DOPS-ESTR-OPS-MAN-1001-OPS-ONN 2page ii of ii Distribution/distribution D/EOP D/EUI D/HME D/LAU D/SCI EOP-B EUI-A HME-A LAU-P SCI-A EOP-C EUI-AC HME-AA LAU-PA SCI-AI EOP-E EUI-AH HME-AT LAU-PV SCI-AM EOP-S EUI-C HME-AM LAU-PQ SCI-AP EOP-SC EUI-N HME-AP LAU-PT SCI-AT EOP-SE EUI-NA HME-AS LAU-E SCI-C EOP-SM EUI-NC HME-G LAU-EK SCI-CA EOP-SF EUI-NE HME-GA LAU-ER SCI-CC EOP-SA EUI-NG HME-GP LAU-EY SCI-CI EOP-P EUI-P HME-GO LAU-S SCI-CM EOP-PM EUI-S HME-GS LAU-SF SCI-CS EOP-PI EUI-SI HME-H LAU-SN SCI-M EOP-PE EUI-T HME-HS LAU-SP SCI-MM EOP-PA EUI-TA HME-HF LAU-CO SCI-MR EOP-PC EUI-TC HME-HT SCI-S EOP-PG EUI-TL HME-HP SCI-SA EOP-PL EUI-TM HME-HM SCI-SM EOP-PR EUI-TP HME-M SCI-SD EOP-PS EUI-TS HME-MA SCI-SO EOP-PT EUI-TT HME-MP SCI-P EOP-PW EUI-W HME-ME SCI-PB EOP-PY HME-MC SCI-PD EOP-G HME-MF SCI-PE EOP-GC HME-MS SCI-PJ EOP-GM HME-MH SCI-PL EOP-GS HME-E SCI-PN EOP-GF HME-I SCI-PP EOP-GU HME-CO SCI-PR -
S New Satellite, THOR 5, Successfully Launched
Telenor’s new satellite, THOR 5, successfully launched Telenor Satellite Broadcasting is pleased to announce the successful launch of its new geo stationary satellite, THOR 5. The satellite was launched from the Baikonur Cosmodrome in Kazakhstan at 12.34 (CET), on 11 February and the launch was declared a success after the satellite separated as planned from the Proton Breeze M launch vehicle at 21.56 (CET) the same day. "I was delighted to see THOR 5 successfully being launched", said Cato Halsaa, CEO of Telenor Satellite Broadcasting. "I would like to thank our partners, Orbital, for carrying out the entire THOR 5 mission programme and ILS, for performing a successful launch. Additional broadcasting services in Europe The THOR 5 satellite will now go through extensive in-orbit testing before it is brought into its final geo- stationary position at 1 degree West and commence operating commercial services. From the1 degree West position, THOR 5 will carry all broadcasting services which currently reside on Thor II and provide additional capacity to allow growth in the Nordic region and expansion into Central and Eastern Europe. First satellite in the replacement and expansion programme THOR 5 is the first new satellite to be launched in Telenor Satellite Broadcasting's replacement and expansion programme for satellites, which has a total investment frame of 2.5 billion NOK (close to 470 million USD). With the completion of the programme, Telenor will have doubled its satellite capacity on 1 degree west, facilitating both organic growth and expansion for Telenor. Increasing need for high powered capacity "The satellite replacement and expansion programme demonstrates Telenor's commitment to the satellite industry and our firm belief that satellites will continue to play an important role as a distribution platform for TV entertainment", says Cato Halsaa, CEO of Telenor Satellite Broadcasting. -
Events: General Meeting : No General Meeting This Month
The monthly newsletter of the Temecula Valley Astronomers July 2016 Events: General Meeting : No general meeting this month. Join us for our annual Anza Star-B-Q. Watch your email for details. For the latest on Star Parties, check the web page. Juno spacecraft and its science instruments. Image credit: NASA/JPL General information: Subscription to the TVA is included in the annual $25 WHAT’S INSIDE THIS MONTH: membership (regular members) donation ($9 student; $35 family). Cosmic Comments by President Mark Baker President: Mark Baker 951-691-0101 Looking Up <[email protected]> Vice President: Chuck Dyson <[email protected]> by Curtis Croulet Past President: John Garrett <[email protected]> Random thoughts Treasurer: Curtis Croulet <[email protected]> by Chuck Dyson Secretary: Deborah Cheong <[email protected]> Hubble's bubble lights up the Club Librarian: Bob Leffler <[email protected]> interstellar rubble Facebook: Tim Deardorff <[email protected]> Star Party Coordinator and Outreach: Deborah Cheong by Ethan Siegel <[email protected]> Send newsletter submissions to Mark DiVecchio Address renewals or other correspondence to: <[email protected]> by the 20th of the month for Temecula Valley Astronomers the next month's issue. PO Box 1292 Murrieta, CA 92564 Like us on Facebook Member’s Mailing List: [email protected] Website: http://www.temeculavalleyastronomers.com/ Page 1 of 10 The monthly newsletter of the Temecula Valley Astronomers July 2016 Cosmic Comments – July/2016 by President Mark Baker As some of you may notice, I will often despair at the current state of the US Space program, to the point of disparagement. -
A Csillagképek Története És Látnivalói, 2019. Március 13
Az északi pólus környéke 2. A csillagképek története és látnivalói, 2019. március 13. Sárkány • Latin: Draco, birtokos: Draconis, rövidítés: Dra • Méretbeli rangsor: 8. (1083°2, a teljes égbolt 2,63%-a) 2m 3m 4m 5m 6m • Eredet: görög (Δράκων (Drakón)) 1 5 10 57 144 Cefeusz Kis Medve Kultúrtörténet Görögök: kígyó (korábban) v. sárkány • ő Ladón, a Heszperiszek Kertjének őre: itt található Héra nászajándéka, egy örök ifjúságot és halhatatlanságot adó aranyalmákat érlelő fa • Héraklész 10+1-edik feladatként ellopott három almát • vagy ő maga, mérgezett nyilakkal elpusztítva Ladónt • vagy megkérte erre Atlaszt, és addig tartotta helyette az eget Héraklész rálép a sárkány • Héra emlékül az égre helyezte fejére (Dürer) Arabok • a sárkányfej-négyszöget (, , , ) 4 anyatevének látták • akik egy teveborjút védelmeznek (?) • mert azt két hiéna (, ) támadja • a tevék gazdái (, , ) a közelben táboroznak Kína • a Központi Palotát közrefogó két „fal” nagy része itt futott • Csillagok: semmi nagyon extra • Az É-i ekliptikai pólus ide esik • Az É-i pólus -3000 környékén az Dra (Thuban) közelébe esett • Mélyég: Macskaszem-köd (NGC 6543): planetáris köd: haldokló óriáscsillag által ledobott anyagfelhő A Kéfeusz-Kassziopeia-Androméda • Kéfeusz Etiópia királya, Zeusz leszármazottja (egyik szeretője, Io jóvoltából) mondakör • felesége, Kassziopeia annyira hiú volt a saját vagy a lánya szépségére („szebb, mint a nereidák”), hogy Poszeidón egy tengeri szörnyet (Cet) küldött büntetésből a királyság pusztítására • hogy elhárítsák a veszedelmet, egy jós tanácsára -
Cleaning the Dishes 29 November 2019
Cleaning the dishes 29 November 2019 activities. "This was the first time such an operation was conducted on an ESA deep space antenna, and despite its complexity, all involved teams managed to conduct the activity smoothly returning the antenna to service within just a week." Scheduled maintenance of high-tech equipment also took place while the antenna power was off, as well as a series of frequency and timing enhancements, an upgrade of data routers and the installation of a new safety rail. Credit: ESA / Suzy Jackson On 6 November, during the antenna maintenance, the New Norcia site was visited by Hon. Kim Beazley AC, formerly Deputy Prime Minister and current Governor of Western Australia. Large antennas are our only current way of communicating through space across vast What are we looking at? distances, and every now and then they need to be spruced up to ensure we can keep in touch with The New Norcia station in Western Australia is one our deep-space exploration spacecraft. of three deep-space dishes in ESA's ESTRACK network. Early this November, ESA's Deep Space Antenna in New Norcia, Australia, was subject to major New Norcia currently supports several flying maintenance, with a wide range of updates spacecraft such as BepiColombo, Cluster, Gaia, implemented to keep it in pristine order. Mars Express and XMM. It will also support many of ESA's future missions including JUICE, Solar To communicate with ESA's fleet of spacecraft, the Orbiter and Euclid. position of the antenna needs to be controlled with high accuracy. The huge 35-metre diameter You can now find out which spacecraft these construction relies on gearboxes to alter its antennas are talking to at any moment, as well as position, offering sweeping views of every inch of other dishes in the network, with ESTRACK now. -
Blasts from the Past Historic Supernovas
BLASTS from the PAST: Historic Supernovas 185 386 393 1006 1054 1181 1572 1604 1680 RCW 86 G11.2-0.3 G347.3-0.5 SN 1006 Crab Nebula 3C58 Tycho’s SNR Kepler’s SNR Cassiopeia A Historical Observers: Chinese Historical Observers: Chinese Historical Observers: Chinese Historical Observers: Chinese, Japanese, Historical Observers: Chinese, Japanese, Historical Observers: Chinese, Japanese Historical Observers: European, Chinese, Korean Historical Observers: European, Chinese, Korean Historical Observers: European? Arabic, European Arabic, Native American? Likelihood of Identification: Possible Likelihood of Identification: Probable Likelihood of Identification: Possible Likelihood of Identification: Possible Likelihood of Identification: Definite Likelihood of Identification: Definite Likelihood of Identification: Possible Likelihood of Identification: Definite Likelihood of Identification: Definite Distance Estimate: 8,200 light years Distance Estimate: 16,000 light years Distance Estimate: 3,000 light years Distance Estimate: 10,000 light years Distance Estimate: 7,500 light years Distance Estimate: 13,000 light years Distance Estimate: 10,000 light years Distance Estimate: 7,000 light years Distance Estimate: 6,000 light years Type: Core collapse of massive star Type: Core collapse of massive star Type: Core collapse of massive star? Type: Core collapse of massive star Type: Thermonuclear explosion of white dwarf Type: Thermonuclear explosion of white dwarf? Type: Core collapse of massive star Type: Thermonuclear explosion of white dwarf Type: Core collapse of massive star NASA’s ChANdrA X-rAy ObServAtOry historic supernovas chandra x-ray observatory Every 50 years or so, a star in our Since supernovas are relatively rare events in the Milky historic supernovas that occurred in our galaxy. Eight of the trine of the incorruptibility of the stars, and set the stage for observed around 1671 AD. -
Jul 2016 Ephemeris
JULY 2016 UPCOMING EVENTS Wednesday, July 6 - Regular PAC meeting @ 6:30 PM in Rm 107, Bldg 74, Embry-Riddle Aeronautical University. Club member Marilyn Unruh will present on ‘Star Hopping’, describing how to navigate through the sky and find objects without a GOTO telescope/mount. In addition, if time allows, there will be an open discussion about happenings and experiences at the recent Grand Canyon Star Party. Wednesday, July 13 - METASIG @ 5:00 PM at a local restaurant. Sign up at meeting on July 6. Wednesday, July 20 - Board Meeting @ 6:30 PM. Tuesday, July 26 - Friendly Pines @ 8:15 PM star party for children with heart disease. Sign up at meeting on July 6. OBSERVING MINI-MARATHONS The first mini-marathon, focusing on double stars and scheduled for July, has been postponed until September when weather will be cooler and the event can start earlier in the evening. The event would be held at Jeff Stillman's home in Chino Valley, pending organizing and agreement of interested individuals. Details will be described and discussed at the July 6 general club meeting. ASTRONOMICAL LEAGUE OBSERVING AWARDS PAC member Rob Esson has become the 281st to be awarded for completing the Astronomical League’s Globular Cluster Observing Program. 1 HUBBLE'S BUBBLE LIGHTS UP THE INTERSTELLAR RUBBLE By Ethan Siegel When isolated stars like our Sun reach the end of their lives, they're expected to blow off their outer layers in a roughly spherical configuration: a planetary nebula. But the most spectacular bubbles don't come from gas-and-plasma getting expelled into otherwise empty space, but from young, hot stars whose radiation pushes against the gaseous nebulae in which they were born. -
The SICRAL 2 Satellite Was Built by Thales Alenia Space in Italy and France for of the Satellites) Is the Operator Telespazio
April 2015 V A 222 THOR 7 SICRAL 2 LOGOTYPE TONS MONOCHROME LOGOTYPE COMPLET (SYMBOLE ET TYPOGRAPHIE) 294C CRÉATION CARRÉ NOIR AOÛT 2005 VA 222 THOR 7 - SICRAL 2 FIRST ARIANE 5 LAUNCH OF THE YEAR ALL EUROPEAN! On its third launch of the year from the Guiana Space Center in French Guiana, and first with an Ariane 5, Arianespace will orbit satellites for two European operators: THOR 7 for the private Norwegian company Telenor Satellite Broadcasting (TSBc), and SICRAL 2 for Telespazio, on behalf of the Italian Ministry of Defense and the French defense procurement agency DGA (Direction Générale de l’Armement, part of the Ministry of Defense). The year’s first mission with the Ariane 5 heavy launcher once again illustrates Arianespace’s assigned task of guaranteeing independent access to space for European operators from both the private and public sectors. Since being founded in 1980, Arianespace has placed 224 satellites into geostationary transfer orbit for customers from Europe. THOR 7 THOR 7 will be the second satellite orbited by Arianespace for the private Norwegian operator Telenor Satellite Broadcasting (TSBc), after THOR 6 in October 2009. Built by Space Systems/Loral using an LS-1300 platform, THOR 7 will weigh approximately 4,600 kg at launch. It is fitted with 21 active Ku-band and 25 Ka-band transponders and will be positioned at 0.8° West. THOR 7 will provide TV broadcasting services for central and eastern Europe. Its payload will also provide broadband communications for the maritime industry, along with spotbeams covering European waters. Offering a design life of 15 years, THOR 7 is the 47th satellite built by Space Systems/Loral (or its predecessor companies) to be launched by Arianespace. -
Today's Topics A. Supernova Remnants. B. Neutron Stars. C
Today’s Topics Wednesday, November 3, 2020 (Week 11, lecture 31) – Chapter 23. A. Supernova remnants. B. Neutron stars. C. Pulsars. Cassiopeia A: Supernova Remnant Supernova in the late 1600’s Cassiopeia A supernova remnant (type II) False color composite image from Hubble (optical = gold), Spitzer (IR = red),and Chandra (X-ray = green & blue) [source: Wikipedia, Oliver Krause (Steward Observatory) and co-workers] Cassiopeia A: Supernova Remnant neutron star Cassiopeia A supernova remnant (type II) False color composite image from Hubble (optical = gold), Spitzer (IR = red),and Chandra (X-ray = green & blue) [source: Wikipedia, Oliver Krause (Steward Observatory) and co-workers] Cassiopeia A: Supernova Remnant neutron star 10 light years Cassiopeia A supernova remnant (type II) False color composite image from Hubble (optical = gold), Spitzer (IR = red),and Chandra (X-ray = green & blue) [source: Wikipedia, Oliver Krause (Steward Observatory) and co-workers] Crab Nebula: Supernova Remnant Supernova in 1054 AD (type II) constellation: Taurus [NASA/ESA/Hubble, 1999-2000] Crab Nebula: Supernova Remnant Supernova in 1054 AD (type II) constellation: Taurus 11 light years [NASA/ESA/Hubble, 1999-2000] Tycho’s Supernova Remnant SN 1572 (type I = white dwarf + red giant binary explosion) Constellation: Cassiopeia Composite image: blue = hard x-rays, red = soft x-rays, background stars = optical [NASA/Chandra (2009)] Tycho’s Supernova Remnant SN 1572 (type I = white dwarf + red giant binary explosion) Constellation: Cassiopeia 10 light years Composite image: blue = hard x-rays, red = soft x-rays, background stars = optical [NASA/Chandra (2009)] Where do heavy elements come from ? ▪ Supernovae are a major source of heavy elements ▪ Most of the iron core of a massive star is “dissolves” into protons in the core collapse.