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ЦитироватьXPoSat
Launch Time
Thu Dec 28, 2023 05:00 GMT+3
Rocket
PSLV-DL
...
Mission Details
XPoSat
XPoSat (X-ray Polarimeter Satellite) is India's first dedicated polarimetry mission to study various dynamics of bright astronomical X-ray sources in extreme conditions. The spacecraft will carry two scientific payloads in a low earth orbit. The primary payload POLIX (Polarimeter Instrument in X-rays) will measure the polarimetry parameters (degree and angle of polarization) in medium X-ray energy range of 8-30 keV photons of astronomical origin. The XSPECT (X-ray Spectroscopy and Timing) payload will give spectroscopic information in the energy range of 0.8-15 keV.
Two payloads of XPoSat are hosted on a modified IMS-2 satellite bus. Primary scientific payload is Polarimeter Instrument in X-rays (POLIX), which will study the degree and angle of polarisation of bright astronomical X-ray sources in the energy range 8-30 keV. POLIX, a 125 kg (276 lb) instrument, is being developed by the Raman Research Institute. Secondary payload is XSPECT (X-ray Spectroscopy and Timing), which will give spectroscopic information of soft X-rays in the energy range of 0.8-15 keV.
Payloads: 1  Total Mass: 480 kg  Low Earth Orbit

Location
First Launch Pad, Satish Dhawan Space Centre, India

ЦитироватьUtpalG  @UtpalGautam5
X-ray Polarimeter Satellite(XPoSat) might be the payload which PSLV-C58 carry to LEO.(Although I'm not sure since it was rumored that a DRDO payload too was to be carried to LEO).
XPoSat is a space observatory developed by #ISRO and Raman Research Institute and will study (1/2)
(https://img.novosti-kosmonavtiki.ru/352068.jpg)
some of the brightest objects in the universe like Pulsars. (2/2)

ЦитироватьLukas C. H.  @GewoonLukas_
India is just one month away from their next launch! Scheduled for NET December 28th between 02:00 and 06:00 UTC, their PSLV rocket is set to launch ISRO's XPoSat satellite! The rocket will by flying in the DL configuration with 2 strap-on Solid Rocket Motors.

ЦитироватьXPoSat
Launch Time
Mon Jan 1, 2024 06:40 GMT+3

ЦитироватьISRO Spaceflight  @ISROSpaceflight
T-3 days: The Mobile Service Tower has been retracted! PSLV-C58 is now standing tall on the First Launch Pad!!
(https://img.novosti-kosmonavtiki.ru/353422.jpg)   (https://img.novosti-kosmonavtiki.ru/353423.jpg)   (https://img.novosti-kosmonavtiki.ru/353424.jpg)
(https://img.novosti-kosmonavtiki.ru/353425.jpg)

Цитироватьhttps://www.youtube.com/watch?v=H10igyNHsr4
Launch of PSLV-C58/XPoSat Mission from Satish Dhawan Space Centre (SDSC) SHAR, Sriharikota
(https://img.novosti-kosmonavtiki.ru/342788.jpg) (https://www.youtube.com/@isroofficial5866)  ISRO Official (https://www.youtube.com/@isroofficial5866)
XPoSat (X-ray Polarimeter Satellite) is India's first dedicated polarimetry mission to study various dynamics of bright astronomical X-ray sources in extreme conditions. The spacecraft will carry two scientific payloads in a low earth orbit. The primary payload POLIX (Polarimeter Instrument in X-rays) will measure the polarimetry parameters (degree and angle of polarization) in medium X-ray energy range of 8-30 keV photons of astronomical origin. The XSPECT (X-ray Spectroscopy and Timing) payload will give spectroscopic information in the energy range of 0.8-15 keV. Read more (https://www.isro.gov.in/XPoSat.html)*

ЦитироватьUtpalG  @UtpalGautam5
#ISRO welcomes 2024 in style by successfully launching the #PSLVC58 / #XPoSat . If I am correct India is now the second country in the world to have a dedicated polarimetry satellite ! Congratulations #India .

ЦитироватьISRO  @isro
PSLV-C58/XPoSat Mission:
Lift-off normal
XPoSat satellite is launched successfully.

PSLV-C58 vehicle placed the satellite precisely into the intended orbit of 650 km with 6-degree inclination.

The POEM-3 is being scripted ...

Цитироватьhttps://www.youtube.com/watch?v=so_isaPG9BU 2:40
XPoSat launch
(https://img.novosti-kosmonavtiki.ru/220832.jpg)  SciNews (https://www.youtube.com/channel/UCjU6ZwoTQtKWfz1urL7XcbA)
For ISRO's PSLV-C58 mission, a Polar Satellite Launch Vehicle (PSLV) in the "DL" configuration (PSLV-DL / 2PSOM-XL+ S139) launched XPoSat (X-ray Polarimeter Satellite), from the First Launch Pad (FLP) of the Satish Dhawan Space Centre (SDSC-SHAR), Sriharikota, India, on 1 January 2024, at 03:40 UTC (09:10 IST). XPoSat is ISRO's first dedicated scientific satellite to carry out research in space-based polarisation measurements of X-ray emission from celestial sources.
Credit: Indian Space Research Organisation(ISRO)

Цитироватьhttps://www.youtube.com/watch?v=iNI4qvc09oE 1:57
XPoSat deployment
(https://img.novosti-kosmonavtiki.ru/220832.jpg)  SciNews (https://www.youtube.com/channel/UCjU6ZwoTQtKWfz1urL7XcbA)
ISRO's XPoSat (X-ray Polarimeter Satellite) has successfully separated from the Polar Satellite Launch Vehicle (PSLV) in the "DL" configuration (PSLV-DL) launched from the First Launch Pad (FLP) of the Satish Dhawan Space Centre (SDSC-SHAR), Sriharikota, India, on 1 January 2024, at 03:40 UTC (09:10 IST).  XPoSat is ISRO's first dedicated scientific satellite to carry out research in space-based polarisation measurements of X-ray emission from celestial sources.
Credit: Indian Space Research Organisation(ISRO)

ЦитироватьИндия запустила в космос спутник для исследования черных дыр
НЬЮ-ДЕЛИ, 1 января. /ТАСС/. Индийская организация космических исследований успешно запустила в космос ракету-носитель PSLV-C58, которая вывела на орбиту спутник XPoSat. Как сообщает организация на сайте, ракета стартовала с космодрома на острове Шрихарикота в Бенгальском заливе, где расположен Космический центр им. Сатиша Дхавана.

Задачей спутник XPoSat станет исследование черных дыр. По информации ведомства, это устройство - первый его специализированный научный аппарат для проведения исследований в области космических измерений рентгеновского излучения небесных источников. Спутник несет две полезные нагрузки: POLIX (рентгеновский поляриметр для астрономических наблюдений) и XSPECT (прибор для рентгеновской спектроскопии и хронометрирования).

Благодаря запуску XPoSAT Индия стала второй страной после США, имеющей станцию для изучения черных дыр и нейтронных звезд, отмечает индийское космическое ведомство.

Оборудование, установленное на ракете-носителе, позволит провести еще 10 научных экспериментов.

ЦитироватьOrbit change and Passivation

After injection of XPoSat in 650km, 6 deg orbit, PS4 stage will be lowered to 350km, ~9.6 deg orbit, by restarting PS4 twice. The left out propellant in the PS4 will be disposed through the Main engines as a pre cursor to enabling safety of PS4 stage in atmosphere re-entry experiments planned in future. The Oxidiser will be let out first followed by Fuel in a predetermined sequence of operations. The existing scheme of Spent stage passivation by venting the tank pressure will also be active. Post passivation of PS4, the control of stage is transferred to POEM Avionics.

POEM

PS4 stage is configured as a 3-axis stabilized Orbital platform for conducting experiments to space qualify systems with novel ideas. The PS4 Stage Orbital Platform Electrical power requirements are catered by Flexible Solar Panel in conjunction with 50Ah Li-Ion battery in battery tied configuration. The orbital platform consists of Avionic systems to take care of Navigation, Guidance, Control & telecommands and Orbital Platform Attitude Control System to cater to control of the platform to test the payloads. The payloads are as follows.

Цитата: полтора_землекопа от 01.01.2024 10:28:48After injection of XPoSat in 650km, 6 deg orbit, PS4 stage will be lowered to 350km,

Цитироватьhttps://www.interfax.ru/world/938745

07:22, 1 января 2024
Индийская ракета PSLV вывела на орбиту научный спутник XPoSat
Москва. 1 января. INTERFAX.RU - Индийская ракета-носитель Polar Satellite Launch Vehicle (PSLV) в понедельник стартовала на орбиту со спутником для изучения рентгеновского излучения в космосе XPoSat, трансляцию пуска вела Индийская организация космических исследований (ISRO).

Запуск четырехступенчатой ракеты был осуществлен со стартовой площадки Космического центра имени Сатиша Дхавана в 09:10 по местному времени (06:40 мск).

Позднее IRSO сообщила, что спутник массой 469 кг был выведен на орбиту высотой около 650 км.

Основная задача спутника XPoSat (X-ray Polarimeter Satellite) - измерение поляризации рентгеновского излучения небесных тел. Также аппарат будет изучать структуру геометрию магнитных полей нейтронных звезд и феномен возникновения черных дыр.
...
Теперь специалистам предстоит включить двигатели четвертой ступени PS4, представляющей собой орбитальную платформу для проведения экспериментов, чтобы снизить ее орбиту до 350 км. Затем начнется фаза проведения научных экспериментов и испытания различных технологий с помощью полезной нагрузки, размещенной внутри ступени.

Цитировать2024-001A    58694   XPOSAT    97.64   5.99   653   638   0.0010382
2024-001B    58695   POEM-3    91.49   9.66   353   343   0.0007367

Цитата: zandr от 01.01.2024 23:14:52зачем на 3,6 градуса увеличил наклонение

Цитата: полтора_землекопа от 01.01.2024 10:28:48Дополнительные задачи миссии в чем-то даже поинтереснее основного КА будут.

ЦитироватьBellatrix Aerospace  @BellatrixAero
We are SPACE QUALIFIED!
ARKA & RUDRA propulsion system are successfully space qualified onboard PSLV C-58 POEM-3 mission on the New Year Day!
We now open doors to supply propulsion systems globally!
@isro @INSPACeIND @NSIL_India
Read more:
https://bellatrix.aero/updates/arka-shines-rudra-roars

ЦитироватьISRO  @isro
POEM-3 on PSLV-C58:
VSSC/ISRO successfully tests a 100 W class Polymer Electrolyte Membrane Fuel Cell on PSLV-C58's orbital platform, POEM3.
https://isro.gov.in/FuelCellFlightTestedPSLVC58.html
Powering missions with efficiency and emitting only water, these fuel cells are the future for power production in space habitats.
(https://img.novosti-kosmonavtiki.ru/353686.png)

ЦитироватьISRO  @isro
POEM-3 on PSLV-C58:
ISRO successfully demonstrates the flight of Si-Graphite anode based High Energy Density Li-ion Cells on PSLV-C58's POEM-3 platform.
https://isro.gov.in/FlightDemonstration_Si-Gr_anode.html
With 35-40% battery mass savings, these cells are set to make future space and ground applications lighter and more efficient.
(https://img.novosti-kosmonavtiki.ru/353691.png)  (https://img.novosti-kosmonavtiki.ru/353692.png)

ЦитироватьISRO успешно протестировала систему питания на основе полимерно-электролитных мембранных топливных элементов класса 100 Вт (FCRPS) на своей орбитальной платформе POEM3, запущенной на борту PSLV-C58 1 января 2024 года. Целью эксперимента была оценка работы топливных элементов с полимерно-электролитной мембраной в космосе и сбор данных для облегчения проектирования систем для будущих миссий. Во время кратковременных испытаний на борту POEM мощность в 180 Вт вырабатывалась из водорода и кислорода, хранящихся на борту в сосудах высокого давления. Он предоставил огромное количество данных о производительности различных статических и динамических систем, которые являются частью энергетической системы и физики в действии.
Водородные топливные элементы вырабатывают электроэнергию непосредственно из водорода и кислорода...
...
Топливный элемент является идеальным источником питания для космической станции, поскольку он обеспечивает как электроэнергию, так и чистую воду.

ЦитироватьPOEM-3 Mission achieves all its Payload objectives
January 27, 2024
POEM-3, the PSLV Orbital Experimental Module-3, India's unique inexpensive space platform using the spent PS4 stage of the PSLV-C58 vehicle that launched XPoSat on January 1, 2024, has successfully achieved all its objectives. After deploying the satellite into its intended orbit at 650 km, the vehicle was lowered to 350 km circular orbit to minimize the time of orbit decay after completion of the experiment. It is a three-axis-attitude controlled platform with power generation and telecommand & telemetry capabilities, for supporting Payloads.

By 25th day in orbit, POEM-3 completed 400 orbits. Its current orbit measures around 322 km by 352 km. It is predicted that POEM-3 will continue orbiting for approximately 73 more days before re-entering the Earth's atmosphere.

POEM-3 flew with nine Payloads from VSSC, PRL, Academia, and Space start-ups inducted through IN-SPACe. Over this period, each payload was put into operation, as planned and performance was demonstrated. The experiments of ARKA200 (Xenon Based Electric Propulsion) and RUDRA (HAN based Green Propellant Thruster) from Bellatrix, and LEAP-TD (Satellite Bus with VHF/UHF Downlink & UHF Uplink – Tested using IIST ground station) from Dhruva Space were completed. Payload Data is collected regularly for WeSAT (Solar irradiance and UV Index study) from LBS Institute of Technology for Women, BeliefSat0(Amateur Radio satellite) from KJ Somayia Institute of Technology, RSEM (Radiation Shielding experiment) from TakeMe2Space, and DEX (interplanetary Dust particle experiment) from PRL for every orbit. 100 W Fuel Cell Power System(FCPS) and Si-C based High Power Li-Ion (10AH/32V) Battery from VSSC were also demonstrated. Thus all payload objectives were fully met. In missions of POEM-1 to POEM-3, ISRO has flown a total of 21 payloads from various institutes and industries.

After achieving all objectives, more experiments with POEM-3 are planned for generating data for future missions including upcoming POEM configurations. With the orbital decay and reentry of POEM-3 in three months, PSLV-C58 XPoSat mission will be leaving zero debris in space.

ЦитироватьISRO Spaceflight  @ISROSpaceflight
The payloads on the POEM-3 module launched on PSLV-C58 have all completed their mission objectives and are expected to reenter the Earth's atmosphere within the next 75 days!
After deploying XPoSat into a 650 km 6° orbit, #ISRO moved POEM-3 to a 350 km 9.6° circular orbit to run its non-separating payloads.
Now after 25 days in space, POEM-3's orbit has decayed into a 322×352 km orbit.
It is estimated that the perigee of its orbit will dip below the Earth's atmosphere within the next 75 days, after which POEM-3 will reenter the atmosphere and be destroyed, leaving no debris in space.
(https://img.novosti-kosmonavtiki.ru/354479.jpg)
(https://img.novosti-kosmonavtiki.ru/354480.jpg)

Цитировать2024-001A    58694   XPOSAT    97.64   5.99   653   638   0.0010488       28.48
2024-001B    58695   POEM-3    91.06   9.66   331   321   0.0007498       0.12

ЦитироватьPOEM-3... Its current orbit measures around 322 km by 352 km

Цитата: zandr от 30.01.2024 07:02:57На СелесТраке с 2 января не было обновлений по объектам запуска.
Сегодня обновили только POEM

Цитировать2024-001A 58694 XPOSAT 97.64 5.99 653 638 0.0010488 28.48
2024-001B 58695 POEM-3 91.06 9.66 331 321 0.0007498 0.12

https://celestrak.org/NORAD/elements/

Цитата: Liss от 19.02.2024 12:42:02А где КА, который в последний раз наши вероятные партнеры видели аж 1 января? Тут уж впору спрашивать, а был ли мальчик...

ЦитироватьThe XSPECT payload on XPoSat, India's first X-ray polarimetric mission, has captured its first light from the Cassiopeia A (Cas A) supernova remnant. Launched on January 1, 2024, XPoSat carries two co-aligned instruments, POLarimeter Instrument in X-rays (POLIX) and X-ray SPECtroscopy and Timing (XSPECT), aimed at unravelling the mysteries of cosmic X-ray sources. While the POLIX instrument focuses on investigating X-ray polarization in medium-energy X-rays, the XSPECT payload, engages in continuous and long-term spectral and temporal studies of X-ray sources in the soft X-ray band.
During its performance verification phase, XSPECT was directed towards Cassiopeia A, a standard celestial source used for instrument evaluation. The observation commenced on January 5, 2024, capturing the supernova remnant's emission lines corresponding to elements such as Magnesium, Silicon, Sulphur, Argon, Calcium, and Iron.

ЦитироватьThe Indian X-ray Polarimeter (POLIX), onboard India's X-ray polarimetry mission XPoSat, has commenced its scientific observations. A pulse profile of the Crab pulsar is generated from the observations carried out by POLIX during January 15-18, 2024. The Crab pulsar, a pulsating star, resides near the center of the Crab Nebula and spins about its axis approximately 30 times per second.

ЦитироватьChethan Kumar  @Chethan_Dash
#Update #space #India
Today, @isro said it accomplished another significant milestone on March 21, when the PSLV Orbital Experimental Module-3 (#POEM3) successfully re-entered Earth's atmosphere in a controlled manner, leaving minimal orbital debris. 1/n
Pic: Isro
(https://img.novosti-kosmonavtiki.ru/357354.png)
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#POEM3 was part of the #PSLVC58 mission that launched #XPoSat on Jan 1, 2024. After deploying satellites into their intended orbits, the spent rocket stage was transformed into a stabilised platform for conducting experiments. 2/n
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"The last stage of PSLV or POEM was deorbited from 650km to 350 km, which facilitated its early reentry, and was passivated to remove residual propellants to minimise any accidental break-up risks," Isro said. 3/n
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On March 21, at 7.34pm, POEM-3 re-entered Earth's atmosphere and impacted the North Pacific Ocean , successfully achieving its mission objectives. 4/n
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Before it was deorbited and eventually brought back to Earth, over the course of a month, POEM-3 carried out various technology demonstrations and scientific experiments, including tests of indigenous systems... 7/n
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...developed by startups, universities, and non-governmental entities (NGEs) through the Indian National Space Promotion and Authorisation Centre (IN-SPACe) initiative. 6/n
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#POEM3 was configured with 9 experimental payloads and six were delivered by NGEs. "The mission objectives of these payloads were met in a month," Isro said. 7/n
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#POEM platform provides a cost-effective opportunity for conducting short-duration space experiments, fostering innovation and collaboration with academia and private entities. 8/n
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"Demonstrating its commitment to responsible space operations, Isro has been implementing measures to mitigate orbital debris, ensuring a sustainable environment for future space endeavours," the space agency added. n/n