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Augmented Satellite Launch Vehicle

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From Wikipedia, the free encyclopedia

Retired Indian small-lift launch vehicle

For the virus, seeAvian sarcoma leukosis virus.

Size
ASLV liftoff
Function	Small-lift launch vehicle
Manufacturer	ISRO
Country of origin	India
Height	23.5 m (77 ft)
Diameter	1 m (3 ft 3 in)
Mass	41,000 kg (90,000 lb)
Capacity
Payload to 400 kmLEO
Mass	150 kg (330 lb)

Associated rockets
Family	SLV,PSLV
Launch history
Status	Retired
Launch sites	Satish Dhawan Space Centre
Total launches	4
Success(es)	1
Failure	2
Partial failure	1
First flight	24 March 1987
Last flight	4 May 1994
Carries passengers or cargo	SROSS

First stage
Powered by	2solid
Maximum thrust	502.6 kN (113,000 lbf) each
Specific impulse	253 seconds (2.48 km/s)
Burn time	49 seconds
Propellant	Solid
Second stage
Powered by	1solid
Maximum thrust	702.6 kN (158,000 lbf)
Specific impulse	259 seconds (2.54 km/s)
Burn time	45 seconds
Propellant	Solid
Third stage
Powered by	1solid
Maximum thrust	304 kN (68,000 lbf)
Specific impulse	276 seconds (2.71 km/s)
Burn time	36 seconds
Propellant	Solid
Fourth stage
Powered by	1solid
Maximum thrust	90.7 kN (20,400 lbf)
Specific impulse	277 seconds (2.72 km/s)
Burn time	45 seconds
Propellant	Solid
Fifth stage
Powered by	1solid
Maximum thrust	35 kN (7,900 lbf)
Specific impulse	281 seconds (2.76 km/s)
Burn time	33 seconds
Propellant	Solid

[edit on Wikidata]

TheAugmented Satellite Launch Vehicle (ASLV) was asmall-lift launch vehicle five-stagesolid-fuel rocket developed byISRO to place 150 kg satellites intoLEO.^[1] This project was started by India during the early 1980s to develop technologies needed for a payload to be placed into ageostationary orbit.^[2]^[3] Its design was based onSatellite Launch Vehicle.^[4] ISRO did not have sufficient funds for both thePolar Satellite Launch Vehicle programme and the ASLV programme at the same time and the ASLV programme was terminated after the initial developmental flights.^[2] The payloads of ASLV wereStretched Rohini Satellites.^[4]

Vehicle

[edit]

The ASLV was a five-stage vehicle. Two strap-on boosters acted as a first stage, with the core stage igniting afterbooster burn out. The payload capacity of the ASLV was approximately 150 kg (330 lb) to an orbit of 400 km (250 mi) with a 47-degree inclination.^[4]

At liftoff, the ASLV generated 909.9 kN (204,500 lbf) of thrust. It was a 41,000-kilogram (90,000 lb) rocket, measuring 23.5 metres (77 ft) in length with a core diameter of one metre (3 ft 3 in).^[4] The height to diameter ratio of ASLV was very large which resulted in the vehicle being unstable in flight. This was compounded by the fact that many of the critical events during a launch like the core ignition and the booster separation happened at theTropopause where the dynamic loads on the launcher was at the maximum.^[5] The aerodynamic characterization research was conducted at theNational Aerospace Laboratories' 1.2m Trisonic Wind Tunnel Facility.^[6]

History

[edit]

The ASLV made four launches, of which one was successful, two failed to achieve orbit, and a third achieved a lower than planned orbit which decayed quickly. The type made its maiden flight on 24 March 1987, and its final flight on 4 May 1994.

Launch history

[edit]

All four ASLV launches occurred from the ASLV Launch Pad at theSriharikota Range. For vertically integrated ASLV, many SLV-3 ground facilities were reused but a new launch pad with retractable Mobile Service Structure was constructed within the same launch complex.^[7]

Flight No.	Date / time (UTC)	Rocket, Configuration	Launch site	Payload	Payload mass	Launch outcome
D1	24 March 1987^[8]	ASLV	Satish Dhawan Space Centre	SROSS-A	150 kg (330 lb)	Failure
D1	First stage failed to ignite after launch
D2	13 July 1988^[8]	ASLV	Satish Dhawan Space Centre	SROSS-B	150 kg (330 lb)	Failure
D2	Control problems caused launcher to disintegrate
D3	20 May 1992^[8]	ASLV	Satish Dhawan Space Centre	SROSS-C	106 kg (234 lb)	Partial failure^[9]
D3	Orbit lower than expected and incorrect spin-stabilization. Decayed quickly.
D4	5 May 1994^[8]^[10]	ASLV	Satish Dhawan Space Centre	SROSS-C2	113 kg (249 lb)	Success^[9]
D4

Launch statistics

[edit]

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1987

1990

1994

Failure
Partial failure
Success

Decade-wise summary of ASLV launches

Decade	Successful	Partial success	Failure	Total
1980s	0	0	2	2
1990s	1	1	0	2
Total	1	1	2	4

References

[edit]

^"ASLV". Archived fromthe original on 27 December 2014. Retrieved28 December 2014.
^^a ^b"Space Launch Vehicles - ASLV". Archived fromthe original on 2009-08-29. Retrieved2009-07-19.
^Menon, Amarnath (15 April 1987)."Setback in the sky".India Today. Retrieved18 January 2014.
^^a ^b ^c ^d"ASLV". Archived fromthe original on June 28, 2002.
^Mukunth, Vasudevan."U.R. Rao, Former Chairman Who Helped ISRO Settle Down".thewire.in. Retrieved2018-02-20.
^"Bengaluru: 1.2m trisonic wind tunnel at National Aerospace Laboratories completes 55 years of service".ANI. 2022-06-06. Retrieved2024-11-22.
^Indian Space Research Organization (2015)."4.1 The Spaceport of ISRO - K. Narayana".From Fishing Hamlet to Red Planet: India's Space Journey. India: Harper Collins. pp. 328, 329.ISBN 9789351776901. Archived fromthe original on 2022-03-08. Retrieved2018-02-09.While most of the facilities realised for SLV-3 was utilised for ASLV, a new launch pad was built in the same complex.This was because, unlike SLV-3, the ASLV had strap-ons and was vertically integrated.
^^a ^b ^c ^dMcDowell, Jonathan."Launch Log".Jonathan's Space Page. Retrieved19 December 2011.
^^a ^b"Stretched Rohini Satellite Series 3 & C2".
^"List of ASLV Launches". Archived fromthe original on January 8, 2019. RetrievedJanuary 8, 2019.

v t e Orbital launch systems
List of orbital launch systems Comparison of orbital launch systems
Current	Angara 1.2 A5 Ariane 6 Atlas V Ceres 1 1S Chollima-1 Electron Eris^† Falcon 9 Block 5 Falcon Heavy Firefly Alpha Gravity-1 GSLV H3 Hyperbola-1 Jielong 1 3 KAIROS^† Kaituozhe 2 Kinetica 1 Kuaizhou 1 1A 11 Long March 2C 2D 2F 3A 3B/E 3C 4B 4C 5 5B 6 6A 6C 7 7A 8 11 11H 12 LVM3 Minotaur I IV V C New Glenn Nuri OS-M1^† Pegasus XL Proton-M PSLV Qaem 100 Qased Shavit 2 Simorgh SLS Block 1 Soyuz-2 2.1a / STA 2.1b / STB Spectrum^† SSLV Starship Tianlong-2 Unha Vega C Vulcan Centaur Zhuque 2E
In development	Antares 330 Bloostar Blue Whale 1 Ceres-2 Cyclone-4M Deca Eclipse Epsilon S Gravity-2 HANBIT-NANO Hyperbola-2 Irtysh Kinetica 2 2H 3 KSLV-III Kuaizhou 21 31 Long March 9 10 Miura 5 Neutron New Line 1 NGLV Nova OS-M 2 4 Orbex Prime Pallas-1 Red Dwarf RFA One SLS Block 1B Block 2 Soyuz-7 Terran R Tianlong-3 VLM Vega E Zero Zhuque 3 Zuljanah
Retired	Antares 110 120 130^† 230 230+ Ariane 1 2 3 4 5 ASLV Athena I II Atlas B D E/F G H I II III LV-3B SLV-3 Able^† Agena Centaur Black Arrow Conestoga^† Delta A B C D E G J L M N 0100 1000 2000 3000 4000 5000 II III IV IV Heavy Diamant Dnepr Energia Epsilon Europa I^† II^† Falcon 1 Falcon 9 v1.0 v1.1 v1.2 "Full Thrust" Feng Bao 1 GSLV Mk I H-I H-II H-IIA H-IIB Juno I Juno II Kaituozhe-1 Kosmos original 1 2/2I 3 3M Lambda 4S LauncherOne Long March 1 1D^† 2A 2E 3 3B 4A Mu 4S 3C 3H 3S 3SII V N1^† N-I N-II Naro-1 Paektusan^† Pilot-2^† R-7 Luna Molniya M L Polyot Soyuz original FG L M U U2 2-1v Soyuz/Vostok Sputnik Voskhod Vostok L K 2 2M R-29 Shtil' Volna^† Rocket 3 RS1^† Safir 1 1A 1B Saturn I IB V Scout X-1 Blue Scout II^† X-2^† X-2M X-3 X-3M X-4 X-2B^† B A B-1 D-1 A-1 E-1 F-1 G-1 Shavit original 1 SLV Space Shuttle SPARK^† Sparta SS-520 Start-1 Terran 1^† Thor Able Ablestar 1 2 Agena A B D Burner 1 2 Delta DSV-2U Thorad-Agena SLV-2G SLV-2H Titan II GLV IIIA IIIB IIIC IIID IIIE 34D 23G CT-3 IV Tsyklon R-36-O original 2 3 Universal Rocket UR-500 Proton Proton-K Rokot Strela Vanguard Vega original VLS-1^† Zenit 2 2M 2FG 3SL 3SLB 3F Zhuque 1^† 2
Classes	Sounding rocket Small-lift launch vehicle Medium-lift launch vehicle Heavy-lift launch vehicle Super heavy-lift launch vehicle
This template lists historical, current, and future space rockets that at least once attempted (but not necessarily succeeded in) an orbital launch or that are planned to attempt such a launch in the future Symbol^† indicates past or current rockets that attempted orbital launches but never succeeded (never did or has yet to perform a successful orbital launch)