The vehicle crashed into the Bay of Bengal 700 seconds after take off. On 29 September 1997 a PSLV C1 rocket failed during launch of IRS-1D. Anomalous interaction between the primary and secondary pressure regulators of the fourth stage caused a reduction in propellant flow and thrust after 250 seconds of burn time. As a result, the fourth stage was shut down by a software override timer after burning 435 seconds, before reaching the target orbit or depleting propellant. The injection velocity was 140 m/s low, resulting in an orbit of 301 x 823 km instead of the planned 817 km circular SSO. Initially, a leak of helium gas from one of the components in the fourth stage was suspected, similar to recent Long March 3 launch failure, but later ruled out. Resulting orbit was partially corrected using satellite's on-board thrusters, thereby raising the perigee to 737 km, while the apogee remained at 821 km.  PSLV-C39 carrying IRNSS-1H was launched on 31 August 2017 at 1330 UTC from Second Launch Pad of Satish Dhawan Space Centre (SHAR). After about 203 seconds of flight payload fairing failed to be jettisoned as planned. Despite completing rest of the flight with all other systems working as expected, with about 1000 kg of extra weight orbit achieved was 6554.8 x 167.4 km at 19.18° inclination well below the intended 284 x 20650 km at 19.2° inclination. After fourth stage engine cut off IRNSS-1H separation occurred, leaving it adrift inside the closed payload fairing. This was second event of total failure in PSLV launch history since 1993.  the PSLV has made 50 launches, with 47 successfully reaching their planned orbits, two outright failures and one partial failure, yielding a success rate of (or including the partial failure). All launches have occurred from the Satish Dhawan Space Centre, known before 2002 as the Sriharikota Range (SHAR). Hidetoshi Nagasawa   was a Japanese sculptor and architect, who lived and worked in Italy from 1967 until his death in 2018. Nagasawa was born in Tonei, Manchuria. He graduated in architecture in Tokyo in 1963. In 1966 he embarked on a long bicycle trip across Asia and Europe, eventually reaching Milan where he decided to permanently settle in 1968. In 1979 he founded the Casa degli Artisti in Milan together with Luciano Fabro and Jole De Sanna.