Essa

Essa may refer to:

ESSA as an acronym may refer to:

See also

Essaï Altounian

Essaï Altounian (Armenian: Եսայի Ալթունյան, in Western Armenian Եսայի Ալթունեան) born 5 November 1980), sometimes credited as simply Essaï, is a French-Armenian singer, songwriter, keyboardist, music producer and an actor.

Biography

Essaï Altounian is a French-Armenian singer, songwriter, keyboardist, music producer and an actor. Being of Armenian origin Essai lived and debuted in France. His grandparents escaped from Kharpet during the Armenian Genocide. At the age of 5 his grandfather Nechane escaped from Der zor desert after his mother and sisters were killed in front of him. He walked alone in the desert when some Bedouins found him crying and decided to keep him. At the age of 18 he met a cousin in a market by chance and moved to France to live with his other cousins that survived. In France he met Essai’s grandmother, learned French and worked hard for his family. Essaï grew up listening to the stories about the Armenian Genocide and his grandfather even wrote a book to never forget what happened to him and to the Armenian people in 1915. The book is called “The Child of the Desert”.

ESSA-9

ESSA-9, also known as TOS-G, was a meteorological satellite. ESSA-9 replaced the ESSA-7 satellite.

Launch & orbit

The ESSA-9 was launched on a three stage Delta rocket from Cape Canaveral, Florida. The launch occurred at 07:47 UTC (02:47 EDT) on 26 February 1969. The spacecraft was placed in a sun-synchronous orbit of 101.4° inclination. Immediately after launch ESSA-9 had a perigee of 1,427.0 kilometers (886.7 mi) and an apogee of 1,508.0 kilometers (937.0 mi), giving it an orbital period of 115.2 minutes, or a mean motion of 12.5 orbits per day.

Spacecraft

The ESSA-9 spacecraft was similar to the TIROS series of satellites, having an 18-sided polygonal shape that measured 42 inches (110 cm) in diameter and 22 inches (56 cm) high. It weighed 320 pounds (150 kg). The body of the ESSA-9 was made of aluminum alloy and stainless steel. The shell of the craft was covered with 10,020 solar cells. The solar cells recharged the 63 nickel–cadmium batteries during the time the spacecraft was in sunlight. The ESSA-9 employed the same cartwheel-style stabilization as the TIROS-9 satellite. The satellite used a Magnetic Attitude Spin Coil (MASC) to control its attitude while in orbit. The magnetic field induced by the MASC's current interacted with the earth's magnetic field to provide the torque necessary to maintain a desired spin rate of 9.225 rpm.