JPSS-1 (NOAA-20) – Delta II 7920-10C – Vandenberg SLC-2W – 18.11.2017

[tnt22]

11/14/2017 13:18

The launch team is beginning steps to drain the Delta 2's first stage of liquid oxygen and RP-1 kerosene propellants.

[Pirat5]

tnt22 пишет: 
We will reschedule liftoff for Wednesday at 1:47 a.m. PST ( 4:47 a.m. EST ; 0947 UTC ).

Хорошо что с ZUMой не пересекаются - разные побережья

[tnt22]

http://www.ulalaunch.com/delta-ii-to-launch-jpss1.aspx

Delta II to Launch JPSS-1

[/li]
• Rocket: Delta II
• Mission: Joint Polar Satellite System (JPSS)-1
• Launch Date: Wednesday, Nov. 15, 2017
• Launch Time: 1:47 a.m. PST
• Live Broadcast: https://www.nasa.gov/nasalive
  

[tnt22]

Pirat5 пишет:
Хорошо что с ZUMой не пересекаются - разные побережья

Они ещё и по времени разнесены - утро (JPSS-1) /  ночь (ZUMA) по UTC почти на 16 часов...

[tnt22]

Chris B - NSF‏ @NASASpaceflight 14 мин. назад

I love how twitter accurately translated the @WaywardBoat note from Russian! From a @tostarstogether tweet.

Грубо и неэстетично (почти (C) т/ф "Спецназ" ) , зато по делу...

[tnt22]

ULA‏Подлинная учетная запись @ulalaunch 10 мин. назад

The launch of a United Launch Alliance Delta II carrying the JPSS-1 mission for NASA and NOAA was scrubbed today due to a red range and a late launch vehicle alarm. Due to the short window there was insufficient time to fully coordinate a resolution.

[tnt22]

NASA Launch Manager Provides Update on JPSS-1 Launch Scrub

NASAKennedy

Опубликовано: 14 нояб. 2017 г.

NASA Launch Manager Omar Baez, with the Launch Services Program, provides an update on this morning's scrub of the launch attempt for NOAA's Joint Polar Satellite System 1, during an interview in the Launch Control Center at Vandenberg Air Force Base in California. The scrub for today's launch attempt occurred just before the T-4 minute countdown was to begin.

(1:33)

[tnt22]

Launch of NOAA's JPSS-1 on a Delta II Rocket Scrubbed for Today

NASAKennedy

Опубликовано: 14 нояб. 2017 г.

(0:41)

[tnt22]

Launch Team Provides Prelaunch Status of NOAA's JPSS-1 Mission

NASAKennedy

Опубликовано: 14 нояб. 2017 г.

The launch conductor polls the launch team during a status check for NOAA's JPSS-1 mission inside the Delta Launch Control Center at Vandenberg Air Force Base in California.

(2:48 )

[tnt22]

Launch Scrubbed for Delta II with JPSS-1

Space Videos

Трансляция началась 3 часа назад

The second last remaining Delta II rocket assigned to a mission was scheduled to launch from Vandenberg Air Force Base at UTC, November 14th 2017 carrying NASA's JPSS-1 weather satellite. Launch was scrubbed due to a technical issue, the next launch attempt is UTC, November 15th 2017.

(43:51)

[tnt22]

http://spaceflight101.com/jpss-1/nighttime-delta-ii-launch-attempt-halted-by-technical-issue-fouled-range/

Nighttime Delta II Launch Attempt Halted by Technical Issue & Fouled Range
November 14, 2017

ULA's Delta II rocket was forced to abandon a nighttime launch attempt fr om California in the early hours on Tuesday due to a technical issue with the rocket's second stage engine actuator as well as a fouled range with boasts in the offshore hazard area wh ere the vehicle's ground-lit boosters were expected to impact. Liftoff with the JPSS-1 satellite has been rescheduled for 9:47:02 UTC on Wednesday, the opening of a brief window.

Спойлер

Photo: United Launch Alliance

The second-to-last Delta II rocket to take flight was revealed atop its SLC-2W launch pad at Vandenberg Air Force Base Monday afternoon when the Mobile Service Tower retracted to its launch position to mark the start of an overnight countdown operation. A picturesque sunset behind the 39-meter tall rocket followed by the typical nighttime fog moving in over Vandenberg set the stage for the penultimate Delta II mission, approaching the end of a three-decade career next year.


Photo: United Launch Alliance

With the complex cleared by all personnel, countdown operations formally began with an hour-long hold at the T-2 hour and 30-minute mark before teams pressed into activation of the rocket's avionics for a detailed set of checkouts. Delta II received its dose of nearly 30 metric tons of Rocket Propellant 1 before clocks hit the T-2-hour mark and launch controllers cleared the vehicle to load 67 metric tons of Liquid Oxygen oxidizer.

Delta II stood fully fueled atop its launch pad as oxygen naturally boiled off and was replenished on its first stage while the second stage had been sitting fully fueled for a number of days given its use of storable propellants. The vehicle entered a series of slew checks on its RS-27A first stage main engine, two sustainer engines on the first stage and the AJ-10 on the Delta-K second stage. No issues were reported at that point and final countdown operations commenced with the upload of the appropriate trajectory file into the rocket's computers while the 2.5-metric-ton JPSS-1 satellite made its transition to battery power.


Photo: NASA TV

The countdown held at T-4 minutes and all appeared to be ready for liftoff until two problems were reported to the launch team. The first was a RED condition on the Western Range due to boats straying into the offshore hazard area and the second was a red line limit tripped for the yaw actuator current on the second stage's thrust vector control system, occurring just as the team was pressing into final polling.

Due to these two No-GO conditions, a HOLD was called immediately before the countdown would have resumed. Since the launch had been re-targeted for the center of the night's launch window at 1:47:35 a.m. local time, the launch team only had half a minute before window time ran out – not nearly enough time to troubleshoot the suspect current signature and clear the range. With the launch officially scrubbed, teams headed into safing of the Delta II rocket and de-tanking procedures.


Photo: United Launch Alliance

The initial call made to the launch team instructed a 24-hour recycle operation to go in motion with an identical launch window of 9:47:02 to 9:48:08 UTC on Wednesday, looking at 80% odds of favorable weather with ground winds remaining the primary concern for the nighttime liftoff.

This is the second launch from the U.S. to be impacted by range intrusions in the last week after the Antares rocket launching the Cygnus OA-8 cargo spacecraft had to abort its countdown on Saturday due to a low-flying aircraft moving into the closed airspace around the rocket's Wallops Island launch complex. Antares had to move to the back of its five-minute launch window on Sunday as boats had to be moved out of the off-shore hazard area.

For Delta II missions from the Western Range, closed air and marine space exists for the standard hazard zone around the launch pad to protect the public in the event of an explosion on the pad or failure early in flight. Additional offshore areas are closed for Delta II launches due to the six impacting Solid Rocket Motors that separate only 86 seconds into the flight and are actually held after burnout to ensure their safe off-shore impact.

One additional peculiarity for nine-booster Delta II vehicles is the ejection of three nozzle plugs from the three air-lit boosters which are the first components coming off the launch vehicle as the air-lits ignite around 65 seconds into the mission. These three plugs have been known to actually make their way back to shore if upper level wind conditions are just right, requiring careful planning of exclusion zones.


Photo: NOAA

The Joint Polar Satellite System finds its roots in the National Polar-Orbiting Operational Environmental Satellite Program (NPOESS) that was initiated in 1994 when efforts began to consolidate the mostly separate weather satellite programs of NASA/NOAA and the U.S. Air Force. This three-agency effort eventually failed and the White House cut the cord in 2010 when the civilian and military programs were split up again with NASA/NOAA transitioning into the Joint Polar Satellite Program.

Current plans call for a pair of JPSS missions, JPSS-1 launching this week, and JPSS-2 in 2022 to sustain operations through 2028 when JPSS follow-on satellites or a new program of its own would begin operations. JPSS-1 is a close copy of the Suomi NPP satellite, built by Ball Aerospace, while JPSS-2 will be based on a platform provided by Orbital ATK. JPSS-1 is based on the BCP-2000 satellite platform and has a launch mass of 2,540 Kilograms, standing 4.2 meters tall and hosting over 450 Kilograms in payload mass for its five instruments. The satellite will communicate through a number of ground stations as well as the Tracking and Data Relay Satellite System to enable a fast data pipeline with a typical acquisition to product turnaround of under 85 minutes to allow operational application of data provided by the satellites in weather now- and forecasting.

>> JPSS-1 Satellite Overview

[свернуть]

[tnt22]

Прогноз погоды L-1 (на 2017-11-15)

14-Nov-17: Weather Forecast
 
80% GO

[tnt22]

NASA_LSP‏Подлинная учетная запись @NASA_LSP 10 ч. назад

The @NOAASatellites #JPSS1 will be known as NOAA-20 once on-orbit, and will orbit the Earth in the 13:30:00 polar orbit, separated in time and space by 50 minutes from the Suomi NPP.

( )

[tnt22]

JPSS - The Joint Polar Satellite System explained

SciNews

Опубликовано: 14 нояб. 2017 г.

The Joint Polar Satellite System (JPSS) is NOAA's new generation polar-orbiting operational environmental satellite system. JPSS is a collaborative program between the National Oceanic and Atmospheric Administration (NOAA) and National Aeronautics and Space Administration (NASA).

Credit: NOAA/NASA

(3:12)

[tnt22]

https://spaceflightnow.com/2017/11/14/boats-in-safety-zone-technical-problem-combine-to-scrub-delta-2-launch/

Boats in safety zone, technical problem combine to scrub Delta 2 launch
November 14, 2017 Stephen Clark


Credit: ULA/Jeff Spotts

United Launch Alliance called off the launch of a Delta 2 rocket from California's Central Coast early Tuesday after boats venturing into a restricted safety exclusion zone and engineers ran out of time to resolve a technical problem on the launcher.

The Delta 2 rocket had only 66 seconds to take off Tuesday from Vandenberg Air Force Base in California, or else launch another day. Engineers sel ected short launch window to allow the mission's JPSS 1 weather satellite payload to enter an optimal orbit circling over Earth's poles.

Спойлер

Launch officials aborted the countdown as it was scheduled to resume after a pre-planned hold at T-minus 4 minutes.

"Hold hold hold," a member of the launch team called out over the countdown net.

ULA said in a statement that two issues prevented launch Tuesday. The Air Force's Western Range reported it was "red" due to boats that ventured into restricted waters in the Pacific Ocean too close to the Delta 2's flight path, and a technical problem on the Delta 2 triggered an alarm in the final minutes of the countdown.

"Due to the short window there was insufficient time to fully coordinate a resolution," ULA said in a statement.

Liftoff from Space Launch Complex 2-West at Vandenberg was rescheduled for Wednesday at 1:47:03 a.m. PST (4:47:03 a.m. EST; 0947:03 GMT), one second later than the opening of Tuesday's launch window. Like Tuesday's launch attempt, the Delta 2 will have 66 seconds to get off the ground.

"Up until the last 10 minutes, about the only thing we were working had to do with a couple of boats in the boat exclusion area off the coast here," said Omar Baez, NASA's launch manager for the mission. "Shortly (later), as we were trying to come out of that hold, one of the paramters on the first stage went out of limits, and there were some short brief discussions.

"With the short window, there wasn't enough time to outbrief that issue and come to resolution, and a hold was called just before we were supposed to go into the T-minus 4 (minute) count," he said. "So we're setting up for a 24-hour recycle."

Members of the launch team discussed an issue in the steering system of the Delta 2's main engine just prior to scrubbing the launch.

The JPSS 1 weather satellite mounted on top of the 128-foot-tall (39-meter) Delta 2 rocket is the first in a new line of polar-orbiting meteorological observatories for NOAA. Carrying five instruments, the satellite — set to be renamed NOAA 20 once in space — will fly more than 500 miles (800 kilometers) above Earth for a planned seven-year mission.

NASA acts as a procurement and technical agent for the development and launch of NOAA weather satellites.

The launch of JPSS 1 will be the penultimate flight of a Delta 2 rocket after more than 150 missions since its debut in 1989. One more Delta 2 launch is planned fr om California in late 2018 with NASA's ICESat 2 mission.

[свернуть]

[tnt22]

https://spaceflightnow.com/2017/11/14/photos-jpss-1-weather-satellite-prepped-for-encapsulation/

Photos: JPSS 1 weather satellite prepped for encapsulation
November 14, 2017 Stephen Clark

NOAA's JPSS 1 weather satellite is enshrouded inside the nose fairing of a Delta 2 rocket, awaiting liftoff fr om Vandenberg Air Force Base in California on a seven-year mission to collect data to improve global weather forecasts.

Спойлер

The satellite weighs around 5,025 pounds (2,280 kilograms), according to NOAA, and will orbit more than 500 miles (800 kilometers) above Earth with a suite of sensors and instruments measuring conditions in the atmosphere, monitoring the health of the ozone layer, and detecting how much thermal radiation is reflected off the planet.

The measurements are vital to feed data into numerical forecast models used to generate medium-term weather outlooks extending out to seven days.

The spacecraft was built by Ball Aerospace and Technologies Corp. in Boulder, Colorado, and is based on the contractor's Ball Configurable Platform (BCP) 2000 satellite design.

JPSS 1's solar panels are folded up for launch to fit inside the Delta 2 rocket's 10-foot-diameter (3-meter) payload shroud. These photos show the two halves of the Delta 2's fairing enclosure inside the mobile service tower at Space Launch Complex 2-West, wh ere technicians prepared to encapsulate the JPSS 1 satellite on top of the rocket.


Credit: NASA/USAF 30th Space Wing


Credit: NASA/USAF 30th Space Wing


Credit: NASA/USAF 30th Space Wing


Credit: NASA/USAF 30th Space Wing


Credit: NASA/USAF 30th Space Wing


Credit: NASA/USAF 30th Space Wing

[свернуть]

[Pirat5]

Pirat5 пишет: 
Хорошо что с ZUMой не пересекаются - разные побережья
tnt22 пишет: 
Они ещё и по времени разнесены - утро (JPSS-1) /ночь (ZUMA) по UTC почти на 16 часов...

если бы на Канаверале, то разница пусков - 2е суток, кажется.
так что хорошо, что делить полигон не надо

[tnt22]

Попытка № 2

11/15/2017 09:47

T-minus 150 minutes and counting. The Delta 2's three-hour countdown has begun, targeting liftoff at 1:47 a.m. PST (4:47 a.m. EST; 0947 GMT).

[tnt22]

Spaceflight Now‏ @SpaceflightNow 2 мин. назад

Fueling of the Delta 2 rocket at Vandenberg Air Force Base in California has started. Liftoff is set for 1:47am PST (4:47am EST; 0947 GMT). https://spaceflightnow.com/2017/11/13/delta-2-jpss-1-mission-status-center/ ...

[tnt22]

ULA‏Подлинная учетная запись @ulalaunch 28 сек. назад

The 20-minute task to load the Delta II rocket's first stage RP-1 fuel tank has been completed as the countdown proceeds smoothly for tonight's launch