From Wikipedia, the free encyclopedia
IRNSS-1H
was the eighth in the
Indian Regional Navigational Satellite System
(IRNSS) series of satellites, after
IRNSS-1A
,
IRNSS-1B
,
IRNSS-1C
,
IRNSS-1D
,
IRNSS-1E
,
IRNSS-1F
and
IRNSS-1G
. It was lost in the launch failure of
PSLV-C39
on August 31, 2017.
[3]
[4]
Overview
[
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]
IRNSS-1H was India's first satellite to be assembled, integrated and tested by private firms under ISRO supervision and was intended to replace the failed IRNSS-1A and complete the
NAVIC
constellation of geosynchronous navigation satellites which is a ?1420-crore independent regional navigation satellite system developed by India.
[5]
[6]
Payload:
[7]
- Navigation payload in S band and L5 band, dual Helix Array Antenna (1.1 m diameter)
- CDMA ranging payload in C band
- Rubidium Atomic Frequency Standard
- Corner Cube Retro Reflector for Laser Ranging
Propulsion:
Conventional bipropellant system with
Mono Methyl Hydrazine
as fuel and
Mixed Oxides of Nitrogen
(MON-3) as oxidizer.
[7]
- Twelve 22N thrusters.
- One 440N Liquid Apogee Motor (LAM)
- Two 390 litres propellant tanks
- One 67 litre pressurant tank with CFRP overwrap and Titanium liner.
Launch
[
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]
PSLV-C39
carrying IRNSS-1H was using XL variant of
Polar Satellite Launch Vehicle
on its forty-first flight. Launch occurred as scheduled at 19:00 IST or 13:30 UTC, 31 August 2017 from Second Launch Pad of SDSC (SHAR) aiming for orbit of 284 × 20,650 km (Sub
GTO
) with 19.2° inclination. Vehicle performed initial flight sequences as planned but 203 seconds into flight, the
payload fairing
jettison event was not accomplished. Excluding this mid-flight malfunction, rest of the planned flight sequences including spacecraft separation at 17 minutes and 56 seconds occurred nominally but due to extra 1182 kg mass of fairing,
[8]
target orbit could not be achieved leaving the combined assembly of PSLV upper-stage (PS4), enclosed payload fairing and trapped IRNSS-1H spacecraft in 167.4 × 6554.8 km orbit with 19.18° inclination.
[9]
[10]
[11]
Liquid Apogee Motor
(LAM) of IRNSS-1H was fired to help it come out of the payload fairing and to consume the propellants and passivate the spacecraft.
[8]
Prior to PSLV C39 / IRNSS-1H, last launch failure involving a PSLV happened 24 years ago in 1993, following which many variants of PSLV rockets have had 39 successful launches.
[12]
Cause of failure
[
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]
PSLV-C39 payload fairing separation mechanism consisted of horizontal and vertical jettisoning system. At the scheduled time during flight separation command was issued and the horizontal jettisoning system functioned nominally but the vertical jettisoning system malfunctioned and subsequently two halves of the payload fairing could not move apart. The cause of malfunction was identified as non-initiation of detonation in pyro device of vertical jettisoning system.
[13]
[14]
Orbit decay
[
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]
Combined assembly of PSLV fourth stage, payload fairings and enclosed IRNSS-1H spacecraft within it weighed between 2675 and 3480 kg and re-entered Earth's atmosphere around 19:23 UTC on 2 March 2019 over
Vanuatu
.
[8]
See also
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]
References
[
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]
- ^
"IRNSS-1H: Isro to launch India's first satellite jointly built with pvt cos today"
. Retrieved
19 December
2019
.
This satellite is the first of the two satellites - being contracted by Isro to a consortium of small firms led by Alpha Design Technologies, a Bengaluru-based aerospace firm.
- ^
"IRNSS-1H launch from Sriharikota unsuccessful: ISRO"
.
The Indian Express
. 31 August 2017
. Retrieved
31 August
2017
.
- ^
"ISRO to launch a new navigation satellite on August 31"
. The Indian Express. 24 August 2017.
- ^
"PSLV-C39/IRNSS-1H Mission - ISRO"
. ISRO. Archived from
the original
on 2017-09-21
. Retrieved
2017-08-24
.
- ^
"IRNSS-1H set to launch on Thursday"
.
The Hindu
. 2017-08-30.
ISSN
0971-751X
. Retrieved
2019-12-19
.
- ^
"1 tonne of extra weight doomed PSLV mission"
.
The Times of India
. 2 September 2017.
- ^
a
b
"SALIENT FEATURES OF IRNSS 1H"
.
www.ursc.gov.in
. Retrieved
2019-12-19
.
- ^
a
b
c
Singh, Satyendra (11 December 2019).
"IRNSS-1H/PSLV-C39 Orbit Evolution and Re-entry Analysis"
(PDF)
. Retrieved
19 December
2019
.
- ^
"heat shield"
.
hindustan times
. September 2017
. Retrieved
1 September
2017
.
- ^
"Two-Decade Success Streak Ends with PSLV Launch Failure on IRNSS-1H Mission ? PSLV C39 | Spaceflight101"
. 31 August 2017
. Retrieved
2019-12-19
.
- ^
Clark, Stephen.
"Indian navigation satellite stranded on rocket after launch ? Spaceflight Now"
. Retrieved
2019-12-19
.
- ^
"ISRO's IRNSS-1H fiasco: Failures are common in space missions, but India can't afford them at this juncture"
. September 2017.
- ^
"Government of India, Department of Space, Rajya Sabha, Unstarred Question Number. 773"
(PDF)
. 8 February 2018
. Retrieved
19 December
2019
.
The 41st flight of PSLV (PSLV-C39) that took place on August 31, 2017 with Indian Regional Navigational Satellite (IRNSS-1H weighing 1425 kg) could not reach the designated orbit, due to non-separation of Payload Fairing (also known as heat shield) during the 2nd stage of the flight. The root cause of the failure was understood after analysing the various flight and ground test data in more detail. For the Payload Fairing separation to happen successfully, the horizontal and vertical jettisoning system needs to function. Based on the flight data, it was observed that the command for horizontal and vertical jettisoning system was successfully issued. Though the horizontal jettisoning system functioned normally, there was malfunctioning of the vertical jettisoning system, due to which the Payload Fairing did not separate. The cause for the malfunctioning was the non-initiation of detonation in the vertical jettisoning system.
- ^
"Pyro devices to blame for PSLV failure: ISRO"
.
The Hindu
. 2017-09-23.
ISSN
0971-751X
. Retrieved
2019-12-19
.
External links
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]
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Satellites
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Related articles
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January
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February
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March
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April
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May
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June
|
- QZS-2
- ViaSat-2
,
Eutelsat 172B
- Dragon CRS-11
(
NICER
,
BRAC Onnesha
,
GhanaSat-1
,
Mazaalai
,
Nigeria EduSat-1
)
- GSAT-19
- EchoStar 21
- Progress MS-06
- HXMT / Insight
,
NuSat 3
- ChinaSat 9A
- Cartosat-2E
,
Max Valier Sat
,
Aalto-1
,
Blue Diamond
,
Green Diamond
,
Red Diamond
,
CICERO-6
,
COMPASS-2
,
InflateSail
,
Lemur-2
× 8
,
LituanicaSAT-2
,
ROBUSTA-1B
- Kosmos 2519
/ Nivelir,
Kosmos 2521
/ Sputnik Inspektor
- BulgariaSat-1
- Iridium NEXT
× 10
- EuropaSat / Hellas Sat 3
,
GSAT-17
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July
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August
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September
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October
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November
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December
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Launches are separated by dots ( ? ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ).
Crewed flights
are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).
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1990s
| | |
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2000s
| |
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2010s
|
- PSLV-C15
(12 Jul 2010)
- PSLV-C16
(20 Apr 2011)
- PSLV-C17
(15 Jul 2011)
- PSLV-C18
(12 Oct 2011)
- PSLV-C19
(26 Apr 2012)
- PSLV-C21
(9 Sep 2012)
- PSLV-C20
(25 Feb 2013)
- PSLV-C22
(
IRNSS-1A
, 1 Jul 2013)
- PSLV-C25
(
Mars Orbiter Mission
, 5 Nov 2013)
- PSLV-C24
(
IRNSS-1B
, 4 Apr 2014)
- PSLV-C23
(30 Jun 2014)
- PSLV-C26
(
IRNSS-1C
, 16 Oct 2014)
- PSLV-C27
(
IRNSS-1D
, 28 Mar 2015)
- PSLV-C28
(
DMC-3
, 10 Jul 2015)
- PSLV-C30
(28 Sep 2015)
- PSLV-C29
(16 Dec 2015)
- PSLV-C31
(
IRNSS-1E
, 20 Jan 2016)
- PSLV-C32
(
IRNSS-1F
, 10 Mar 2016)
- PSLV-C33
(
IRNSS-1G
, 28 Apr 2016)
- PSLV-C34
(22 Jun 2016)
- PSLV-C35
(
SCATSAT-1
, 26 Sep 2016)
- PSLV-C36
(
Resourcesat-2A
, 7 Dec 2016)
- PSLV-C37
(15 Feb 2017)
- PSLV-C38
(23 Jun 2017)
- PSLV-C39
(
IRNSS-1H
, 31 Aug 2017, failure)
- PSLV-C40
(
Cartosat-2F
, 12 Jan 2018)
- PSLV-C41
(
IRNSS-1I
, 11 Apr 2018)
- PSLV-C42
(16 Sep 2018)
- PSLV-C43
(
HySIS
, 29 Nov 2018)
- PSLV-C44
(
Microsat-R
, 24 Jan 2019)
- PSLV-C45
(
EMISAT
, 1 Apr 2019)
- PSLV-C46
(
RISAT-2B
, 22 May 2019)
- PSLV-C47
(
Cartosat-3
, 27 Nov 2019)
- PSLV-C48
(
RISAT-2BR1
, 11 Dec 2019)
|
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2020s
|
- PSLV-C49
(
EOS-01
, 7 Nov 2020)
- PSLV-C50
(
CMS-01
, 17 Dec 2020)
- PSLV-C51
(
Amazonia-1
, 28 Feb 2021)
- PSLV-C52
(
EOS-04
, 14 Feb 2022)
- PSLV-C53
(DS-EO, NeuSAR, Scoob-1,
POEM-1
(hosted), 30 Jun 2022)
- PSLV-C54
(EOS-06, BhutanSat aka INS-2B, Anand, 26 Nov 2022)
- PSLV-C55
(TeLEOS-2, Lumelite-4,
POEM-2
(hosted), 22 Apr 2023)
- PSLV-C56
(DS-SAR, VELOX-AM, 30 Jul 2023)
- PSLV-C57
(
Aditya-L1
, 2 Sep 2023)
- PSLV-C58
(
XPoSat
,
POEM-3
(hosted), 1 Jan 2024)
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