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ЦитироватьNVS-02 (IRNSS-1K)
Launch Time
NET January, 2025
Rocket  GSLV Mk II
...
Mission Details
NVS-02 (IRNSS-1K)
The NVS, previously IRNSS, constellation is not a global positioning constellation, like GPS, GLONASS, Galileo, or Beidou-3, but a regional one, similar to the Chinese Beidou-1 and 2, or the Japanese QZSS, serving only the Indian sub-continent. IRNSS satellites have two payloads: a navigation payload and CDMA ranging payload in addition to a laser retro-reflector. The payload generates navigation signals at L5 and S-band. The design of the payload makes the IRNSS system interoperable and compatible with Global Positioning System (GPS) and Galileo systems. The satellite is powered by two solar arrays, which generate up to 1,660 watts, and has a lifetime of ten years.
Payloads: 1    Geostationary Transfer Orbit

Location
Second Launch Pad, Satish Dhawan Space Centre, India

Цитата: Salo от 13.01.2025 22:31:57https://forum.nasaspaceflight.com/index.php?topic=61252.msg2654393#msg2654393

Цитата: GewoonLukasScheduled for the last week of January:

ЦитироватьJitendra Singh reviews upcoming ISRO missions (https://www.thehindu.com/news/national/karnataka/jitendra-singh-reviews-upcoming-isro-missions/article69080798.ece)
January 09, 2025
[...]
The Department of Space said that the first mission of the year, GSLV-F15/ NVS-02 will launch the second navigation satellite, NVS-02 in the NVS series. The integration of the launch vehicle is in the advanced stage at the launch complex in Sriharikota and it is scheduled during the last week of January.
[...]

ЦитироватьLukas C. H.  @GewoonLukas_
Meanwhile NOTAMs for India's first launch of the year have also been published! This will be the NVS-02 navigation satellite aboard their GSLV Mk. II rocket. Launch is scheduled for NET January 26th between 22:45 and 02:45 (January 27th) UTC.

ЦитироватьNVS-02 (IRNSS-1K)
Launch Time
Wed Jan 29, 2025 01:45 GMT+3
GSLV Mk II
...
NVS-02 (IRNSS-1K)
The NVS, previously IRNSS, constellation is not a global positioning constellation, like GPS, GLONASS, Galileo, or Beidou-3, but a regional one, similar to the Chinese Beidou-1 and 2, or the Japanese QZSS, serving only the Indian sub-continent. IRNSS satellites have two payloads: a navigation payload and CDMA ranging payload in addition to a laser retro-reflector. The payload generates navigation signals at L5 and S-band. The design of the payload makes the IRNSS system interoperable and compatible with Global Positioning System (GPS) and Galileo systems. The satellite is powered by two solar arrays, which generate up to 1,660 watts, and has a lifetime of ten years.
Payloads: 1
Total Mass: 2,232.0 kg
Geostationary Transfer Orbit

ЦитироватьISRO Spaceflight  @ISROSpaceflight
ISRO is set to launch GSLV-F15 on 29 January at 6:23 am IST!
It will carry NVS-02, the second satellite in the 2nd generation of NavIC satellites, into Geostationary Transfer Orbit.
(https://img.novosti-kosmonavtiki.ru/377625.jpg)

ЦитироватьLokesh KR  @Lokeshkr73
#ISRO #GSLV #NVS02 #LAUNCH 🇮🇳
𝗚𝗦𝗟𝗩-𝗙𝟭𝟱 / 𝗡𝗩𝗦-𝟬𝟮 : Launch scheduled on 29 January 2025, at 06:23 AM (IST).
Registration for Launch View Gallery to open at 18:00 IST today (23.01.2025).
Let's go
(https://img.novosti-kosmonavtiki.ru/377626.jpg)

ЦитироватьChethan Kumar  @Chethan_Dash
In what'll be another landmark moment for India's space programme, Isro is geared up for its 100th launch from SDSC-SHAR spaceport in Sriharikota with the #GSLVF15 mission, tentatively scheduled for Jan 29, at 6.23am. 1/n
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This launch will deploy the #NVS02 satellite, furthering India's indigenous Navigation with Indian Constellation (NavIC) system. 2/n
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The #GSLVF15 is the 17th flight of the GSLV and the 11th flight featuring an indigenous cryogenic stage. Notably, this is the eighth operational flight of GSLV with a fully indigenous cryogenic stage, highlighting Isro's technological prowess. 3/n
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The launch will take place from the Second Launch Pad (SLP) at Sriharikota, using a metallic payload fairing with a diameter of 3.4 meters. The mission's primary objective is to place the NVS-02 satellite into a Geosynchronous Transfer Orbit (GTO). 4/n
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NavIC is India's indigenous regional navigation satellite system, designed to provide precise Position, Velocity, and Timing (PVT) services. 5/n
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The system covers India & extends approx 1,500km beyond Indian landmass, offering two service types: Standard Positioning Service (SPS), which provides position accuracy better than 20m and restricted Service (RS), which offers additional specialised navigation capabilities. 6/n
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"The #NVS02 satellite is the second-generation of NavIC satellites, featuring a standard I-2K bus platform... 7/n
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...It will have a lift-off mass of 2,250kg, power handling capability of around 3 kW, navigation payload in L1, L5, and S bands, ranging payload in C-band and will be positioned at 111.75ºE, replacing IRNSS-1E," Isro said. 8/n
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The satellite incorporates a combination of indigenous and procured atomic clocks for precise time estimation. Designed and developed at the URSC, #NVS02 underwent rigorous testing, including thermovac and dynamic tests to ensure optimal performance in space conditions. 9/n
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The NVS series builds upon Isro's previous achievements, with NVS-01 being the first second-generation satellite launched on May 29, 2023. 10/n
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This mission marked the first flight of an indigenous atomic clock, demonstrating India's growing technological capabilities in space exploration.- 11/n
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The upcoming #GSLVF15 launch not only celebrates Isro's 100th launch from Sriharikota but also underscores India's commitment to developing indigenous space technologies and navigation systems. n/n

ЦитироватьISRO  @isro
 Meet NVS-02, the next-gen satellite in the Navigation with Indian Constellation (NavIC) series!
Enhancing India's regional navigation capabilities with precision and reliability.
Getting closer to launch day with every moment!
More information at:
https://isro.gov.in/GSLV-F15_NVS-02_Mission.html
(https://img.novosti-kosmonavtiki.ru/377670.jpg)

ЦитироватьGSLV-F15 is the 17th flight of India's Geosynchronous Satellite Launch Vehicle (GSLV) and 11th flight with Indigenous Cryo stage.It is the 8th operational flight of GSLV with an indigenous Cryogenic stage and 100th Launch from the India's Spaceport Sriharikota.GSLV-F15 payload fairing is a metallic version with a diameter of 3.4 meters.
The GSLV-F15 with indigenous Cryogenic stage will place NVS-02 satellite into a Geosynchronous Transfer Orbit & the launch will take place from the Second Launch Pad (SLP) at Satish Dhawan Space Centre, SHAR.
Navigation with Indian Constellation (NavIC) is India's independent regional navigation satellite system designed to provide accurate Position, Velocity and Timing (PVT) service to users in India as well as to region extending about 1500 km beyond Indian land mass.
NavIC will provide two types of services, namely, Standard Positioning Service (SPS) and Restricted Service (RS). NavIC's SPS provides a position accuracy of better than 20 m (2σ) and timing accuracy better than 40 ns (2σ) over the service area.

ЦитироватьISRO Spaceflight  @ISROSpaceflight
GSLV is all set to go, as ISRO gears up for their 100th rocket launch from SHAR!!
 29 Jan, 6:23 AM IST
(https://img.novosti-kosmonavtiki.ru/377689.jpg)

Цитата: zandr от 26.01.2025 09:38:05More information at:
https://isro.gov.in/GSLV-F15_NVS-02_Mission.html (https://isro.gov.in/GSLV-F15_NVS-02_Mission.html)

Цитата: Брабонт от 27.01.2025 09:05:58

Цитата: zandr от 26.01.2025 09:38:05More information at:
https://isro.gov.in/GSLV-F15_NVS-02_Mission.html (https://isro.gov.in/GSLV-F15_NVS-02_Mission.html)

Недоступен даже через VPN. Странно.

ЦитироватьISRO  @isro
 Standing tall and ready for the skies! Here's the mighty GSLV-F15 all set to launch the NVS-02 satellite.
 Date: 29th January 2025 | Time: 6:23 Hours (IST)
 Watch the launch live: https://youtube.com/live/LWzg5Z-bcLo (from 05:50 hours)
Stay inspired!
More information at: https://isro.gov.in/GSLV-F15_NVS-02_Mission.html
(https://img.novosti-kosmonavtiki.ru/377702.jpg) (https://img.novosti-kosmonavtiki.ru/377703.jpg) (https://img.novosti-kosmonavtiki.ru/377704.jpg)

Цитироватьhttps://www.youtube.com/watch?v=LWzg5Z-bcLo
Launch of GSLV-F15/NVS-02 Mission from Satish Dhawan Space Centre (SDSC) SHAR, Sriharikota
(https://img.novosti-kosmonavtiki.ru/377219.jpg) (https://www.youtube.com/@isroofficial5866)  ISRO Official (https://www.youtube.com/@isroofficial5866)
GSLV-F15 is the 17th flight of India's Geosynchronous Satellite Launch Vehicle (GSLV) and 11th flight with Indigenous Cryo stage.It is the 8th operational flight of GSLV with an indigenous Cryogenic stage and 100th Launch from the India's Spaceport Sriharikota.GSLV-F15 payload fairing is a metallic version with a diameter of 3.4 meters.
The GSLV-F15 with indigenous Cryogenic stage will place NVS-02 satellite into a Geosynchronous Transfer Orbit & the launch will take place from the Second Launch Pad (SLP) at Satish Dhawan Space Centre, SHAR.

ЦитироватьISRO  @isro
Night before the big day! The GSLV-F15 is on the launch pad, ready to lift NVS-02 to the skies.
Don't miss the action! Watch live here: https://youtube.com/live/LWzg5Z-bcLo
Stay tuned for updates! 
More information at: https://isro.gov.in/GSLV-F15_NVS-02_Mission.html

Цитироватьhttps://www.youtube.com/watch?v=TzL7y50M4gY 2:11
GSLV-F15 launches NVS-02
(https://img.novosti-kosmonavtiki.ru/220832.jpg)  SciNews (https://www.youtube.com/channel/UCjU6ZwoTQtKWfz1urL7XcbA)
A Geosynchronous Satellite Launch Vehicle Mk II (GSLV-F14) launched the NVS-02 navigation satellite into a Geosynchronous Transfer Orbit (GTO) from the Second Launch Pad (SLP) at Satish Dhawan Space Centre SHAR (SDSC SHAR), Sriharikota, India, on 29 January 2025, at 00:53 UTC (06:23 IST). NVS-02 is part of Navigation with Indian Constellation (NavIC), India's independent regional navigation satellite system.
Credit: Indian Space Research Organisation (ISRO)

Цитироватьhttps://www.youtube.com/watch?v=KN5p_nX1N8g 1:00
NVS-02 deployment
(https://img.novosti-kosmonavtiki.ru/220832.jpg)  SciNews (https://www.youtube.com/channel/UCjU6ZwoTQtKWfz1urL7XcbA)
The NVS-02 navigation satellite was deployed into a Geosynchronous Transfer Orbit (GTO) about 19 minutes after being launched by a Geosynchronous Satellite Launch Vehicle Mk II (GSLV-F15) from the Second Launch Pad (SLP) at Satish Dhawan Space Centre SHAR (SDSC SHAR), Sriharikota, India, on 29 January 2025, at 00:53 UTC (06:23 IST).
Credit: Indian Space Research Organisation (ISRO)

ЦитироватьISRO  @isro
Mission Success!
The GSLV-F15/NVS-02 mission has been successfully accomplished.
India reaches new heights in space navigation!

Цитата: zandr от 29.01.2025 06:23:11

ЦитироватьISRO  @isro
Mission Success!
The GSLV-F15/NVS-02 mission has been successfully accomplished.
India reaches new heights in space navigation!

Миссия успешна.

Цитата: Liss от 29.01.2025 10:53:27Перебор по высоте апогея более 1000 км. В пределах допуска или нет, сказать трудно, но это точно не фатально.

Цитировать2025-020A    62850   NVS-02 (IRNSS-1K)    665.89   20.67   37,603   161   0.7411345
2025-020B    62851   GSLV R/B                    661.00   19.79   37,338   177   0.7391978

Цитировать2025-020A    62850   NVS-02 (IRNSS-1K)    665.42   20.76   37,575   165   0.7408627
2025-020B    62851   GSLV R/B   660.26   20.76   37,312   165   0.7394802

ЦитироватьIndian Space Post  @indianspacepost
GSLV-F15 / NVS-02 Update: The solar panels onboard the NVS-02 satellite were successfully deployed, power generation was nominal & communication with ground station was established, after it was placed in Geosynchronous Transfer Orbit (GTO).

But, the orbit raising manoeuvres intended for placing it on the designated orbital slot was not carried out as valves that control the flow of oxidizer to thrusters failed to open.

This leaves the otherwise healthy satellite in an elliptical orbit. Alternate mission strategies for utilising the satellite for navigation in an elliptical orbit is being worked out.

(https://img.novosti-kosmonavtiki.ru/377879.jpg)

ЦитироватьAlternate mission strategies for utilising the satellite for navigation in an elliptical orbit is being worked out.

Цитата: полтора_землекопа от 02.02.2025 23:29:32С перигеем ниже 170 км вряд ли ему грозит долгожительство. Интересно, пассивировать будут?

ЦитироватьИндийский навигационный спутник не смог выйти на заданную орбиту
Москва. 3 февраля. INTERFAX.RU - Индийский навигационный спутник NVS-02, запущенный 29 января, не смог выйти на заданную орбиту из-за проблемы с двигательной установкой. Об этом сообщило издание India Today со ссылкой на Индийскую организацию космических исследований (ISRO).

На аппарате возникла неполадка с открытием клапана подачи окислителя в двигательную установку. Спутник "застрял" на переходной орбите, с которой он после отделения от носителя должен был выйти с помощью своего двигателя на запланированную.

Аппарат NVS-02 весом 2250 кг предназначен для предоставления пользователям точного местоположения, скорости объектов и времени. Он должен был войти в состав индийской региональной навигационной спутниковой системы NavIC, которая является альтернативой GPS и используется в военных и гражданских целях.

Запуск спутника был осуществлен со стартовой площадки Космического центра имени Сатиша Дхавана на острове Шрихарикота с помощью ракеты-носитель GSLV F15.

ЦитироватьSegerYU  @SegerYU
(https://img.novosti-kosmonavtiki.ru/377906.png)
(https://img.novosti-kosmonavtiki.ru/377907.jpg)
(https://img.novosti-kosmonavtiki.ru/377908.jpg)

Цитата: Liss от 03.02.2025 10:36:03

Цитата: полтора_землекопа от 02.02.2025 23:29:32С перигеем ниже 170 км вряд ли ему грозит долгожительство. Интересно, пассивировать будут?

Зависит от того, куда возмущения потянут эксцентриситет. Если на снижение, то может прожить довольно долго.

ЦитироватьMayur Pawar  @MayurPAero
Orbital Mechanics at Play!
@isro NVS-02 satellite experienced a propulsion system failure, limiting conventional orbit raising maneuvers impossible. Yet, intriguingly, the perigee altitude is steadily increasing. 1/5
(https://img.novosti-kosmonavtiki.ru/380688.png)