Once the system can be solved, given an initial point it is possible to determine all its future positions, a collection of points known as a trajectory or orbit.

Once the spacecraft arrives, a second application of thrust will re-circularize the orbit at the new location.

Once a vehicle leaves low earth orbit and the protection of Earth's magnetosphere, it enters the Van Allen radiation belt, a region of high radiation.

Once in the desired orbit, they often need some form of attitude control so that they are correctly pointed with respect to the Earth, the Sun, and possibly some astronomical object of interest .< ref >

Once deployed, the tether would be ascended repeatedly by mechanical means to orbit, and descended to return to the surface from orbit.

Once launched, orbits are normally located within relatively constant flat planes at a fixed angle to the axis of the Earth, and the Earth rotates within this orbit.

Once in orbit, the spacecraft was supposed to deploy a large sail, upon which photons from the Sun would push, thereby increasing the spacecraft's velocity ( the contributions from the solar wind are similar, but of much smaller magnitude ).

Once the neutron star enters the red giant, drag between the neutron star and the outer, diffuse layers of the red giant causes the binary star system's orbit to decay, and the neutron star and core of the red giant spiral inward toward one another.

Once the satellite is detected, the missile is launched into orbit close to the targeted satellite.

Once in orbit, the manned capsule will dock with a second, unmanned, lunar-propulsion module which will then power the circumlunar portion of the trip.

Once in orbit, and same as MOL / Gemini, the crew would access the lab through a hatch in the heat shield at the bottom of the VA capsule.

Once in lunar orbit, the crew refines the trajectory and configures the Orion CSM for unmanned flight, allowing all four crew members to transfer to the Altair and land on the Moon, while the Orion waits for its return.

Once in orbit around Z ' ha ' dum, Sheridan and Anna take a shuttle down to the surface of the planet.

Once on orbit, the five crew members began configuring Atlantis for on-orbit operations.

Once in orbit, the crew entered the 40 foot ( 13 m ) long pressurised Spacelab module to commence over 40 science experiments to take place during the mission.

Once full, they do not require more fuel when in orbit.

Once on orbit a crew member will active SOLSE which will perform limb and Earth viewing observations.

Once in orbit, a crewmember activated NaSBE and then the experiment was controlled by the GSFC Payload Operations Control Center ( POCC ).

Once on orbit and clamped to the host spacecraft, the PECs are opened and serve as racks to expose experiments to the space environment.

Once the electron starts to " orbit " the proton, the energy becomes negative, and a bound state – namely the hydrogen atom – is formed.

Once the orbit is known, Elektra's mass can be reliably found.

Once on orbit ICM would provide sufficient fuel for one to three years of operation.

Once there, a backup Earth orbit mission could be performed so that the flight was not entirely in vain.

Once Shure introduced its own UHF wireless microphone system, which featured wireless versions of several popular Shure microphones, they no longer made capsules available for other manufacturer's systems, which encouraged sales of Shure wireless systems and gained Shure market share in the category.

Among the musicals, Camelot came from T. H. White's The Once And Future King, and novels were the sources of the less than momentous Tenderloin and Do Re Mi.

Once, they were at Easthampton for the summer ( again, Fritzie said, a good place, even though they were being robbed ).

Once on the road ( and especially if the passengers were all regulars and masculine ), the schedule meant nothing.

Once again, both anti-A and anti-B activities were found in the insoluble material precipitated during dialysis.

Once more, Juet's complaints were the loudest.

Once the abolition of slavery in the rebel states became a military objective, as Union armies advanced south, more slaves were liberated until all three million of them in Confederate territory were freed.

Once they were gone, Abd a-Rahman and Bedr immediately set off westwards.

Once " stand off " nuclear weapon designs were developed, bombers did not need to pass over the target at high altitude to make an attack ; they could fire and turn away to escape the blast.

Once the keys had been pressed they were locked down until mechanical contacts in a distributor unit passed over the sector connected to that particular keyboard, when the keyboard was unlocked ready for the next character to be entered, with an audible click ( known as the " cadence signal ") to warn the operator.

Once the account exceeded its quotas, it was automatically disabled, but the messages were still saved as they arrived.

Once the price of inkjet printers dropped to the point where they were competitive with dot matrix printers, dot matrix printers began to fall out of favor for general use.

Once this islands were covered with savanna on the plains and arid shrubland on the mountainsides, but over 500 years of human habtitation, since colonisation by the Portuguese in the 15th century, nearly all the original vegetation has been cleared by widespread agriculture including the grazing of goats, sheep and cattle and the planting of imported crop species.

Once the toads were established, a 1963 study concluded, as the toad's diet included both harmful and beneficial invertebrates, it was considered " economically neutral ".

Once the bombardment had disordered the infantry formation, cavalry were able to rout and pursue the scattered foot soldiers.

Once at some games at which he was presiding, he ordered his guards to throw an entire section of the crowd into the arena during intermission to be eaten by animals because there were no criminals to be prosecuted and he was bored.

* The songs " A Very Strange Agony " and " To Die Only Once " of the Spanish symphonic metal band Döxa were inspired by " Carmilla ".

Once the round has ended, surviving players retain their equipment for use in the next round ; players who were killed begin the next round with the basic default starting equipment.

Once Chuck Peddle had taken over engineering at Commodore, he convinced Jack Tramiel that calculators were already a dead end and that they should turn their attention to home computers.

Once again his spirits were raised when the unit under his command received orders overseas to France ; this time his wishes were thwarted when the armistice was signed, just a week before departure.

Once in office, when the Chinese began a buildup in the Kaesong sanctuary, he threatened to use nuclear force if an armistice were not concluded.

Once captured, he was humiliated by Hernando Pizarro and his requests for appeals to the King were ignored.

Roger Ebert approves of the use of the label in unsuccessful films that had been tampered with by studio executives, such as Sergio Leone's original cut of Once Upon a Time in America, and the moderately successful theatrical version of Daredevil, which were altered by studio interference for their theatrical release.