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 altitude, the main parachute was deployed from the Vostok spacecraft.

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 the very first, then, Brumidi was required, by the classically pyramidal shape of his central group, to fill in the triangular space above the seated girl on Liberty's right, before starting on the allegorical figures themselves.

At its most ecstatic moments, husband and wife are elevated far above worldly cares.

At pH values greater than the pKa of the carboxylic acid group ( mean for the 20 common amino acids is about 2. 2, see the table of amino acid structures above ), the negative carboxylate ion predominates.

At the suggestion of his friend Benjamin Ruff, Carnegie's partner Henry Clay Frick had formed the exclusive South Fork Fishing and Hunting Club high above Johnstown, Pennsylvania.

At above the valley floor, the pair were at the highest elevation above the Lunar Module of any other Apollo mission.

At Athens, the traveller Pausanias was informed in the second-century CE that the cult of Aphrodite Urania above the Kerameikos was so ancient that it had been established by Aegeus, whose sisters were barren, and he still childless himself.

At the above mentioned turns ( Kandilli and Yenikoy ) where significant course alterations have to be made, the rear and forward sights are totally blocked prior to and during the course alteration.

At the time, before the pre-eminence of Mozart or Beethoven, and with Johann Sebastian Bach known primarily to connoisseurs of keyboard music, Haydn reached a place in music that set him above all other composers except perhaps George Frideric Handel.

At its source, the river is at an elevation of above sea level.

At a price above equilibrium, there is a surplus of quantity supplied compared to quantity demanded.

At the end of the algorithm, if the Gauss – Jordan elimination ( zeros under and above the leading 1 ) is applied:

At first Germany's military moves were brilliantly successful, as in the " blitzkrieg " invasions of Poland ( 1939 ), Norway ( 1940 ), the Low Countries ( 1940 ), and above all the stunningly successful invasion and quick conquest of France in 1940.

At higher latitudes in summer, when the sun does not sink below the horizon, a day is counted from midday to midday, and in the winter, when the sun does not rise above the horizon, from midnight to midnight.

At a level above that of LAU is the Region which clusters counties together for NUTS purposes.

At a pH below their pI, proteins carry a net positive charge ; above their pI they carry a net negative charge.

At heights of above, in the thermosphere, the atmosphere is so thin that free electrons can exist for short periods of time before they are captured by a nearby positive ion.

At the same time as the generation of the gynogenetic and androgenetic embryos discussed above, mouse embryos were also being generated that contained only small regions that were derived from either a paternal or maternal source.

At the same time, Falwell's legacy regarding homosexuality is complicated by his support for LGBT civil rights ( see " civil rights " section above ), as well as his efforts at reconciliation with the LGBT community in later years.

At this moment he was unfortunately called out by a person on business from Porlock, and detained by him above an hour, and on his return to his room, found, to his no small surprise and mortification, that though he still retained some vague and dim recollection of the general purport of the vision, yet, with the exception of some eight or ten scattered lines and images, all the rest had passed away like the images on the surface of a stream into which a stone had been cast, but, alas!

The passage continues with a famous account of an interruption: " At this moment he was unfortunately called out by a person on business from Porlock, and detained by him above an hour, and on his return to his room, found, to his no small surprise and mortification, that though he still retained some vague and dim recollection of the general purpose of the vision, yet, with the exception of some eight or ten scattered lines and images, all the rest had passed away like the images on the surface of a stream into which a stone has been cast, but, alas!

At the bow the forward upper futtock protruded about 400 mm above the sheerline and was carved to retain anchor or mooring lines.

At the bottom of the trench, where the plates meet, the water column above exerts a pressure of, over one thousand times the standard atmospheric pressure at sea level.

At some of the mithraeums which have been found below churches, for example the Santa Prisca mithraeum and the San Clemente mithraeum, the ground plan of the church above was made in a way to symbolize Christianity's domination of Mithraism.

At 10-15 kilometers ( 6 – 9 miles ) above the Earth's surface, the absorption of sunlight would further heat the smoke, lifting some, or all of it, into the stratosphere, to where the smoke would persist for years, with no rain to wash it out.