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Rohini (rocket family)

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Title: Rohini (rocket family)  
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Subject: A. P. J. Abdul Kalam, ISRO Inertial Systems Unit, Indian National Committee for Space Research, X-Sat, RISAT
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Rohini (rocket family)

Rohini is a series of meteorological and atmospheric study. These sounding rockets are capable of carrying payloads of 2 to 200 kilograms (4.4 to 440.9 lb) between altitudes of 100 to 500 kilometres (62 to 311 mi).[1] The ISRO currently uses RH-200, RH-300, RH-300 Mk-II and RH-560 Mk-II rockets, which are launched from the Thumba Equatorial Rocket Launching Station (TERLS) in Thumba and the Satish Dhawan Space Center in Sriharikota.

Rohini rocket family


The rockets in the series are designated with the letters RH (for "Rohini"), followed by a number corresponding to the diameter (in millimetres) of the rocket.[2]



The RH-75, the first sounding rocket developed by India,[3] was launched from TERLS on November 20, 1967.[4] It weighed 32 kilograms (71 lb), had a diameter of 75 millimetres (3.0 in) and flew 15 times between November 1967 and September 1968.


This rocket was launched on October 9, 1971 from Sriharikota. It was a two-stage rocket using a solid propellant, carrying a 7 kilograms (15 lb) payload to 19 kilometres (12 mi) in altitude. It flew twice between January 1970 and October 1971.


The RH-200 has a maximum launch altitude of 70 kilometres (43 mi).[5] A variant, the RH-300 Mk-II, has a maximum launch altitude of 116 kilometres (72 mi).[5] Another variant, the RH-560 Mk-II, can reach a maximum launch altitude of 548 kilometres (341 mi).[5]


The RH-200 is used for meteorological studies, the RH-300 Mk-II for upper-atmospheric studies and the RH-560 Mk-II for ionospheric studies. The RH-200 was used as the rocket for the first payload launch in India made by students (from VIT University in Vellore). The team members include Dev Sharma, Sunayan Kumar, Himanshu Misra, Chandresh Mittal, Ankit Sharma, Manish Kumar Narnoli, Nitesh Kumar and Gautam Alok.[6]

Rohini series of sounding rockets
Name RH 75 RH 125 RH 200/125 RH-300 RH-300 Mk II RH-300/200/200 RH-560/300 RH-560/300 Mk II
Gross mass 8 kg (18 lb) 40 kg (88 lb) 100 kg (220 lb) 300 kg (660 lb) 500 kg (1,100 lb) 500 kg (1,100 lb) 1,300 kg (2,800 lb) 1,600 kg (3,530 lb)
Height 1.50 m (4.90 ft) 2.50 m (8.20 ft) 3.60 m (11.80 ft) 4.10 m (13.40 ft) 5.90 m (19.30 ft) 8.00 m (26.20 ft) 8.40 m (27.50 ft) 9.10 m (29.80 ft)
Diameter 0.0800 m (0.2620 ft) 0.12 m (0.39 ft) 0.20 m (0.65 ft) 0.31 m (1.01 ft) 0.31 m (1.01 ft) 0.31 m (1.01 ft) 0.56 m (1.83 ft) 0.56 m (1.83 ft)
Thrust 8.00 kN (1,798 lbf) 17.00 kN (3,821 lbf) 38.00 kN (8,542 lbf) 39.00 kN (8,767 lbf) 38.00 kN (8,542 lbf) 76.00 kN (17,085 lbf) 76.00 kN (17,085 lbf)
Apogee 10 kilometres (6.2 mi) 20 kilometres (12 mi) 80 kilometres (50 mi) 100 kilometres (62 mi) 150 kilometres (93 mi) 300 kilometres (190 mi) 400 kilometres (250 mi) 500 kilometres (310 mi)
Stages 1 1 2 1 1 3 2 2
First Launch 20 November 1967 1 January 1970 1 January 1979 8 June 1987 1 November 1985 24 April 1974 16 August 1995
Payload (kg) 1 7 10 60 70 100


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