[Space] NASA - New Horizons: Pluto-Kuiper Belt Mission

[GioFX]

Originariamente inviato da cangia

avete parlato di nasalive prima .. quacuno mi passa l'url ?

NASA TV (Real): http://www.nasa.gov/ram/35037main_portal.ram

NASA TV (WindowsMedia): http://www.nasa.gov/55644main_NASATV_Windows.asx

[duchetto]

Originariamente inviato da cangia

avete parlato di nasalive prima .. quacuno mi passa l'url ?

http://playlist.yahoo.com/makeplayli...segment=149773

[GioFX]

WEDNESDAY, JANUARY 18, 2006
1459 GMT (9:59 a.m. EST)

SCRUB! Today's launch attempt has been called off. The New Horizons mission control center at the Johns Hopkins University Applied Physics Laboratory suffered a power outage this morning. The backup system using generators is not sufficient to proceed with the launch. So the first mission to Pluto will remain on Earth for another day.

Tomorrow's launch window extends from 1:08 to 3:07 p.m. EST.


1459 GMT (9:59 a.m. EST)

A management meeting is planned for 4 p.m. EST this afternoon to determine if the New Horizons control center in Maryland will be ready for a launch attempt tomorrow or whether more time is needed. The Atlas launch team is moving forward with a 24-hour scrub turnaround timeline to preserve the option of flying tomorrow.

[GioFX]

Maryland storms delay New Horizons launch

BY WILLIAM HARWOOD
STORY WRITTEN FOR CBS NEWS "SPACE PLACE" & USED WITH PERMISSION
Posted: January 18, 2006

Already running a day behind because of high winds in Florida, NASA's New Horizons Pluto mission was grounded today by storms in Maryland that knocked out power to the spacecraft control center at the Johns Hopkins University Applied Physics Laboratory near Washington.

An emergency generator kicked in to keep the control center in operation, but spacecraft managers were not comfortable proceeding with a launch attempt today without a backup system in place.

If primary power is restored, or if another generator can be moved in and hooked up in time, NASA will proceed with another launch attempt Thursday at 1:08 p.m. If not, launch will be delayed again. A decision on how to proceed is expected later today.

"If we were in flight, we would not have an issue with this," said Alan Stern, the New Horizons principal investigator at the Southwest Research Institute in Boulder, Colo. "We have a backup, we're running on backup right now. But I was not willing to launch on the backup because it means we don't have a backup (if something else goes wrong)."

To reach Pluto, New Horizons must launch by Feb. 14 or the flight will be delayed to next year. But mission managers hope to get the $700 million mission off the ground by Jan. 28 to take advantage of Jupiter's gravity for a planned 2007 flyby that will boost the probe's velocity by 9,000 mph and get it to Pluto by 2015. After Jan. 28, the arrival date begins slipping and by the end of the launch window, an additional five years is required to reach the target.

Stern is optimistic it won't come to that.

"I've got 28 days to get the thing launched," he said today at the Kennedy Space Center. "That's a lifetime. We'll probably fly tomorrow, maybe the next day. ... I have this mental image of a padlock with 11,000 tumblers and when they're all right, we'll fly. Yesterday, we had 10,999. Today we have a different 10,999. One day, they'll all line up."

Assuming power is restored in time, NASA and rocket-builder Lockheed Martin hope to launch New Horizons atop an Atlas 5 heavy-lift rocket at 1:08 p.m. Thursday. The launch window extends to 3:07 p.m. The launch window Friday opens at 1 p.m. and closes at 2:59 p.m.

Here is an updated timeline of major ascent events For a Jan. 19 launch (all times in EST):


TIME...............T+MM:SS...EVENT

01:08:00 PM...T-00:08...Guidance to inertial
01:08:00 PM...T-00:03...RD-180 ignition

01:08:00 PM...T+00:01...Liftoff
01:08:05 PM...T+00:05...Start RD-180 throttle down for max Q
01:08:27 PM...T+00:27...Roll, pitch, yaw maneuver complete
01:08:24 PM...T+00:44...Max Q (900 psf)
01:09:34 PM...T+01:34...SRB burnout
01:09:47 PM...T+01:47...SRB jettison (1,2)
01:09:48 PM...T+01:48...SRB jettison (3,4,5)
01:11:23 PM...T+03:23...Payload fairing jettison
01:11:28 PM...T+03:28...Forward load reactor jettison
01:12:28 PM...T+04:28...Booster engine cutoff
01:12:34 PM...T+04:34...Atlas/Centaur separation

01:12:44 PM...T+04:44...Centaur main engine start (MES) 1
01:18:06 PM...T+10:06...Centaur main engine cutoff (MECO) 1

01:40:37 PM...T+32:37...Centaur MES 2
01:50:16 PM...T+42:16...Centaur MECO 2 (altitude: 157 sm)
01:50:26 PM...T+42:26...Spacecraft/Star 48B spinup
01:50:29 PM...T+42:29...Centaur/Star 48B separation

01:51:06 PM...T+43:05...Star 48B ignition
01:52:33 PM...T+44:33...Star 48B burnout (altitude: 238 sm)
01:56:01 PM...T+48:00...Spacecraft separation

Whenever it finally blasts off, New Horizons will depart Earth at a record 10 miles per second, passing the moon's orbit in just nine hours and reaching Jupiter in just 13 months.

Even so, it will take the nuclear-powered New Horizons another eight years to reach Pluto, flying past the frozen world in July 2015 before streaking on into the Kuiper Belt, a broad disk of icy dwarf worlds left over from the formation of the solar system 4.6 billion years ago.

Equipped with a half-dozen sophisticated instruments, New Horizons is expected to return a treasure trove of information about the outer solar system, including the first close-up images of Pluto and its oversize moon, Charon.

[MaxRob]

si intravede una specie di vapore bianco proveniente da un serbatoio.... si tratta del propellente?

[duchetto]

sbaglio o le condizioni del tempo sono molto più promettenti dell'altro ieri?

[MaxRob]

Originariamente inviato da duchetto

sbaglio o le condizioni del tempo sono molto più promettenti dell'altro ieri?

Dai che lanciano fra 40 minuti!

[MaxRob]

http://www.hwupgrade.it/forum/showpo...2&postcount=41...
si vede benissimo in diretta wow

[GioFX]

1803 GMT (1:03 p.m. EST)

Liftoff has been reset for 1:13 p.m. EST, the Range says.


1805 GMT (1:05 p.m. EST)

NEW LAUNCH TIME! The launch will be pushed back further to 1:25 p.m. EST to wait for the cloud cover to clear.

[GioFX]

1810 GMT (1:10 p.m. EST)

The low clouds have been drifting ashore from the Atlantic all morning. There are small breaks in the cloud cover that gives hope of launching through a hole.


1810 GMT (1:10 p.m. EST)

The Range says it cannot support a 1:25 p.m. launch.


1811 GMT (1:11 p.m. EST)

NEW LAUNCH TIME! Liftoff has been re-targeted again. Launch is now set for 1:30 p.m. EST.

[GioFX]

1812 GMT (1:12 p.m. EST)

This extra five minutes allows the Range to complete another sweep of the restricted area around the launch site.

[Frank1962]

....ma quel fumo biano che esce che cosa è? a che serve? ...a segnare la direzione del vento?

[GioFX]

1820 GMT (1:20 p.m. EST)

Liftoff time is now 10 minutes away. Everyone is awaiting word whether the Range Safety is "go" for launch.

[GioFX]

1821 GMT (1:21 p.m. EST)

Range is 'no go' for launch at 1:30 p.m. because of clouds obscuring the optics for tracking the rocket at liftoff.

[GioFX]

Originariamente inviato da Frank1962

....ma quel fumo biano che esce che cosa è? a che serve? ...a segnare la direzione del vento?

ma no!

lo ripeto ad ogni nuova missione... è l'ossigeno (il comburente) che evapora per il contatto con l'atmosfera dalla valvola di sfiato della feeding line.

[GioFX]

1823 GMT (1:23 p.m. EST)

NEW LAUNCH TIME. The Atlas team is targeting 1:40 p.m. EST.

[GioFX]

1825 GMT (1:25 p.m. EST)

The cloud rule at issue here in the ceiling limit. Range Safety requires that it can track the rocket unobstructed through the first 6,000 feet of flight.

[GioFX]

1827 GMT (1:27 p.m. EST)

The new timeline calls for the launch team readiness poll at 1:33 p.m., resumption of the countdown at 1:36 p.m. and liftoff at 1:40 p.m. EST (1840 GMT), if the clouds will allow.

[GioFX]

1829 GMT (1:29 p.m. EST)

Range is 'go' for launch! The cloud conditions are now acceptable, safety officials have determined.

[GioFX]

1831 GMT (1:31 p.m. EST)

Range is 'no go' now!