At an altitude of about, Young was able to view the landing site in its entirety.

At 4000 m, raising the oxygen concentration level by 5 percent via an oxygen concentrator and an existing ventilation system provides an altitude equivalent of 3000 m, which is much more tolerable for the increasing number of low-landers who work in high altitude.

At this altitude and velocity, the vehicle has a kinetic energy of about 3 TJ and a potential energy of roughly 200 GJ.

At the altitude of 5 – 10 km the meteor broke into pieces.

At an altitude of approximately 50 km, the pressure is reduced to a few atmospheres, and the temperature would be between 40 – 100 ° C, depending on the altitude.

At, the air is at half the pressure of sea level, which means that the engine will produce less than half-power at this altitude.

At high altitude, during winter, and in the far north and south, snow collects in ice caps, snow pack and glaciers.

At an altitude of 750 m ( 2, 460 ft ) the main thrusters began firing, slowing the fall until a height of 22 m ( 72 ft ) was reached.

At an altitude of, Kittinger opened his main chute and landed safely in the New Mexico desert.

At the end of the second day they reached the crest of the NE ridge at an altitude of about 6500 m. During the following day and a half they climbed along the NE Ridge and, utterly exhausted, reached the summit.

At liftoff the engine typically burns both fuels, gradually changing the mixture over altitude in order to keep the exhaust plume " tuned " ( a strategy similar in concept to the plug nozzle but using a normal bell ), eventually switching entirely to LH2 once the kerosene is burned off.

At 12: 07 a. m., a security camera at the high altitude W. L. Eccles Observatory ( 9600 ft above sea level ) recorded a movie of the passage of the object to the north.

At 1, 052 meters altitude, the highest elevation in Bangladesh is found at Mowdok Mual, in the southeastern part of the hills.

At an altitude between to ( depending on operating frequency ), the signal is partially absorbed in a small volume several tens of kilometers in diameter and a few meters thick over the IRI.

At higher altitude a MACH-meter is used instead, to prevent the aircraft from overspeed.

At an altitude of approximately, the SAA spans from-50 ° to 0 ° geographic latitude and from-90 ° to + 40 ° longitude.

At an altitude of about 370 km ( 230 mi ) the first stage separated from the second stage.

At 6 km altitude, traveling at about 250 m / s, the 16 m diameter lander parachutes deployed.

At 1. 5 km altitude, retrorockets on the lander itself were ignited and, 40 seconds later at about 2. 4 m / s, the lander arrived on Mars with a relatively light jolt.

At an average of 654 m of altitude, on the southern part of the Meseta Central and occupying some 88 km² ; the city was for a long time encapsuled between the hills and the river Henares to the south and east by the Madrid-Barcelona railway on the north and west.

At an altitude of 1, 605 metres ( 5, 260 ft ) above sea level, Quetta Airport is the second highest airport in Pakistan.

At an altitude of 750 meters the main thrusters began firing, slowing the fall until a height of 22 meters was reached.

At this point the drains are readjusted so that the suds box drain will discharge directly into the waste line and the main tub drain is set at the 2-1/2 mark on the drain gauge.

At present the doctor's main concern was in seeing to it that Japanese salvage firms were not permitted to operate on the hulks of warships sunk too close inshore, because the work involved setting off nerve-shattering blasts at all hours.

At length, Ish-bosheth lost the main prop of his tottering cause by accusing Abner of sleeping with Rizpah ( cf.

At a meeting of the Party in Munich in September 1919, the main speaker was Gottfried Feder.

At 02: 00 on 13 August, 40 squadrons were sent forward towards the enemy, followed at 03: 00, in eight columns, by the main Allied force pushing over the Kessel.

At certain times, London has had no overall city government and boroughs were the main unit of local government for Londoners ; in Tokyo, they are known as wards or cities, and have city status, but these still form parts of a larger municipal government which has merged with that of the prefecture.

At that meeting, the three main conspirators were dubbed the Anti-Party Group, accused of factionalism and complicity in Stalin's crimes.

At MGM he was one of the main directors of their female stars – he directed Joan Crawford six times and Greta Garbo seven.

At 13: 00 hours every day, the main esplanade in front of the Government Palace of Perú fronting Lima's Main Square serves as the stage for the changing of the guard, undertaken by members of the Presidential Life Guard Escort Dragoons, mounted or dismounted.

At first a number of leading Esperantists put their support behind the Ido project, but the movement stagnated and declined, first with the accidental death of one of its main proponents and later as people proposed further changes, and the number of current speakers is estimated at between 250 and 5000.

At high latitudes, north of the main zone of boreal forest or taiga, growing conditions are not adequate to maintain a continuous closed forest cover, so tree cover is both sparse and discontinuous.

At the end of the century, the administration of the city hall and the city underwent diverse structural changes with the opening of several avenues, hospitals, cultural spaces and it became one of the main tourist destinations in the Northeast and in Brazil.

At 11: 15pm reporters waiting outside the National Palace saw two cars containing Madero and Suárez emerge from the main gate under a heavy escort commanded by Captain Francisco Cardenas, an officer of the rurales.

At the same time scenes of ordinary life with moral, political or satirical content became often the main vehicle for expressive interplay between figures in painting, whether given a modern or historical setting.

At the beginning of the Industrial revolution in Britain, water was the main source of power for new inventions such as Richard Arkwright's water frame.

At the Cowles Commission, Simon ’ s main goal was to link economic theory to mathematics and statistics.

At this time, the earth entered a period of global cooling that had a dehumidifying effect on the main early human habitats in East and Central Africa.

At the Kut Barrage much of the water is diverted into the Shatt al-Hayy, which was once the main channel of the Tigris.

At least 100 aftershocks registering a 6. 0 magnitude or higher have followed the main temblor.

At the November 2006 groundbreaking for a new ballpark for the New York Mets, Citi Field, it was announced that the main entrance, modeled on the one in Brooklyn's old Ebbets Field, would be called the Jackie Robinson Rotunda.

At this time the main island was being used as a penal colony.

At each node was 32 MB of memory for main cache.

" At this stage, he seemed to have settled on leg theory, if not full bodyline, as his main tactic.

At the end of the lute's evolution the archlute, theorbo and torban had long extensions attached to the main tuning head in order to provide a greater resonating length for the bass strings, and since human fingers are not long enough to stop strings across a neck wide enough to hold 14 courses, the bass strings were placed outside the fretboard, and were played " open ", i. e. without fretting / stopping them with the left hand.

At the confluence, the Ohio is even bigger than the Mississippi ( Ohio at Cairo: 281, 500 cu ft / s ( 7, 960 m < sup > 3 </ sup >/ s ); Mississippi at Thebes: 208, 200 cu ft / s ( 5, 897 m < sup > 3 </ sup >/ s )) and, thus, is hydrologically the main stream of the whole river system, including the Allegheny River further upstream.