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

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Н-да, ирония судьбы - метеоспутник не запущен по метеоусловиям    

Derrick.Stamos‏ @Helodriver2004 23 мин. назад

#NASA #JPSS1 #Delta2 scrubs for upper level winds, kind of ironic for me as I was shooting from the Vandenberg weather balloon facility and that's how the out of limits winds were discovered.    @NASASpaceflight

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http://spaceflight101.com/jpss-1/strong-winds-aloft-keep-delta-ii-jpss-1-weather-satellite-on-the-ground/

Strong Winds Aloft Keep Delta II & JPSS-1 Weather Satellite on the Ground
November 15, 2017


Photo: United Launch Alliance

The penultimate Delta II rocket encountered a second launch scrub on Wednesday, keeping the first satellite in the Joint Polar Satellite System grounded for at least another day, possibly more given an unfavorable outlook for conditions in the upper atmosphere over the California launch site.

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Delta 378 had to abandon its first launch attempt in the early hours on Tuesday due to an out-of-spec indication on an engine actuator and a fouled range by boats entering the offshore hazard area. The 39-meter tall rocket spent Tuesday protected inside its Mobile Service Tower while engineers reviewed the technical issue before clearing the vehicle for another try Wednesday morning. Clocks started ticking back from T-2 hours and 30 minutes after an hour-long hold, picking up with activation of the rocket's flight control system for checkouts followed by loading the first stage with 96 metric tons of Rocket Propellant 1 and Liquid Oxygen.

Delta II stood fully fueled and checked off final engine steering checks as countdown operations proceeded without any technical issues. Range Weather was given as 100% favorable for launch, but balloons measuring conditions in the upper atmosphere showed brisk winds from the west, violating Delta II's launch criteria.


Photo: NASA

Upper Level Winds are not part of the range weather criteria and the percentage of cooperative weather issued prior to launch. Instead, winds aloft are examined under vehicle-specific flight dynamics analysis to ensure forces encountered by the ascending launch vehicle do not exceed its structural limits.

In the L-30-minute weather briefing, the Launch Weather Officer reported data from the last pre-launch weather balloon, showing upper level winds from the west at 250° at a present speed of 114 knots with further strengthening to 120 kts expected until liftoff. With this unfavorable outlook, the Delta II launch team around Launch Director Tom Heter and Launch Conductor Scott Barney was forced to back out of the countdown at T-6 minutes and 42 seconds, pressing into de-tanking.

Per the standard operational procedure, the Delta II launch team went into a 24-hour turnaround to preserve the opportunity of launching Thursday morning, though meetings later in the day will determine whether an attempt will be made based on upper level wind forecasts. Although Range Weather is expected to remain favorable through Thursday's backup slot, there is not much hope for improvement higher up in the atmosphere.

Flow from the west will prevail over the next 24 hours with upper level winds of 125 knots predicted for Thursday's opportunity, slightly stronger than Wednesday from the same direction. The wind direction will shift slightly west to 260° by Friday morning, remaining strong at 120 knots as the result of a frontal system approaching the launch base.

NASA said in a statement after Wednesday's Scrub that assessments on when the next launch attempt can made are underway, also in coordination with the Western Range. The earliest possible launch window available for the mission opens at 9:47 UTC on Thursday.
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https://blogs.nasa.gov/jpss/2017/11/15/jpss-1-launch-status/

Anna Heiney
Posted on November 15, 2017

JPSS-1 Launch Status


Photo courtesy of ULA

NOAA's Joint Polar Satellite System-1 spacecraft will launch aboard a United Launch Alliance Delta II rocket from Space Launch Complex 2 at California's Vandenberg Air Force Base. Launch managers are working to determine a launch date after today's planned liftoff was scrubbed due to upper-level winds.

Visit https://www.nesdis.noaa.gov/jpss-1 or follow https://twitter.com/noaasatellites and https://twitter.com/nasa for launch status updates.

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11/15/2017 14:18

The ULA launch team is expected to reschedule the next Delta 2 launch attempt for Saturday, with a backup day of Sunday, pending final approval of the U.S. Air Force's Western Range at Vandenberg Air Force Base.

High-altitude winds over the next couple of days are forecast to be much like conditions today, so officials want to wait for improved winds before making another launch attempt.

The launch time Saturday will be 1:47 a.m. PST (4:47 a.m. EST; 0947 GMT).

The Delta 2 rocket and the JPSS 1 weather satellite on-board have been safed, and the booster's first stage has been drained of propellant following the scrub earlier this morning.

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Буклет миссии - dii_jpss1_mob.pdf, 2189231 B, 2 стр, 2017-11-15 19:10:38 UTC

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https://spaceflightnow.com/2017/11/15/delta-2-launch-from-california-halted-for-second-day-in-a-row/

Delta 2 launch from California halted for second day in a row
November 15, 2017 Stephen Clark


The Delta 2 rocket stands at Space Launch Complex 2-West at Vandenberg Air Force Base, California, awaiting liftoff with the JPSS 1 weather satellite. Credit: ULA/Walter Scriptunas II

Brisk upper level winds blowing from the west thwarted a second try to launch a new NOAA weather satellite aboard a United Launch Alliance Delta 2 rocket Wednesday, likely postponing the liftoff from Vandenberg Air Force Base in California until at least Saturday.

High-altitude were measured at more than 110 knots (126 mph) by a weather balloon sent aloft from Vandenberg during Wednesday's early morning countdown. Safety officials from the U.S. Air Force's Western Range were concerned the winds might blow debris from the rocket, such as nozzle covers on the Delta 2's air-lit solid rocket boosters, back over populated areas on land as it climbs south over the Pacific Ocean.

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Six of the Delta 2's nine strap-on solid-fueled motors will ignite on the launch pad to boost the 128-foot-tall (39-meter) rocket skyward, along with the first stage's liquid-fueled RS-27A main engine. Once the six ground-lit boosters burn out, three air-lit boosters will fire about a minute into the flight, ejecting plugs from their nozzles when they ignite.

Similar strong upper level winds are predicted Thursday and Friday. ULA is expected to target the Delta 2's next launch attempt Saturday at 1:47 a.m. PST (4:47 a.m. EST; 0947 GMT).

The scrubbed launch attempt Wednesday came 24 hours after ULA aborted a countdown when boats ventured into an offshore safety exclusion zone near the Delta 2's flight path, and a technical problem cropped up a few minutes before liftoff.

The launch of the JPSS 1 weather satellite will mark the 154th flight of a Delta 2 rocket since 1989, and the 378th mission by the Delta family of launch vehicles since 1960. One more Delta 2 mission is on the books for late 2018 with NASA's ICESat 2 mission to measure the shrinkage of Earth's ice caps.

Built by Ball Aerospace and Technologies Corp., the 5,025-pound (2,280-kilogram) JPSS 1 satellite is the first of new NOAA polar-orbiting weather observatories. The Joint Polar Satellite System, succeeding from a precursor series of weather satellites, will ensure data on atmospheric chemistry, clouds, fog, smoke, temperature, humidity, and Earth's ozone layer reach scientists and weather forecasters through at least 2038.

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Tory Bruno‏Подлинная учетная запись @torybruno 2 мин. назад

We'll rest up the crew, give the weather a chance to improve, and go to space on Saturday. #JPSS1

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NOAA Satellites‏Подлинная учетная запись @NOAASatellites 13 мин. назад

The launch of #JPSS1 is now scheduled for Nov. 18th liftoff targeted for 4:47 a.m. EST (1:47 a.m. PST). More info: https://goo.gl/hRNTiJ 

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https://www.nesdis.noaa.gov/JPSS-1

Launch Rescheduled for Saturday, 11/18
Nov 16, 2017

The launch of NOAA's Joint Polar Satellite System-1 (JPSS-1) satellite, the first in a new series of four highly advanced polar-orbiting satellites, is now scheduled for Saturday, Nov. 18, from Vandenberg Air Force Base, California.

Liftoff aboard a United Launch Alliance Delta II rocket from Space Launch Complex 2 is targeted for 4:47 a.m. EST (1:47 a.m. PST).

NASA TV live launch coverage will begin at 4:15 a.m. EST on Nov. 18 and conclude after the CubeSat deployment.

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Spaceflight Now‏ @SpaceflightNow 14 мин. назад

A launch double-header is on tap starting Friday night. SpaceX's Falcon 9 booster is set to lift off from Florida at 8pm EST (0100 GMT), then ULA's Delta 2 rocket is set to launch from California at 4:47am EST (0947 GMT) Saturday. We'll cover both at https://spaceflightnow.com

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https://www.nasa.gov/press-release/nasa-launch-of-noaa-weather-satellite-rescheduled-for-nov-18

Nov. 16, 2017
MEDIA ADVISORY M17-136

NASA Launch of NOAA Weather Satellite Rescheduled for Nov. 18

The launch of the Joint Polar Satellite System-1 (JPSS-1) satellite, the first in a new series of four highly advanced National Oceanic and Atmospheric Administration (NOAA) polar-orbiting satellites, now is scheduled for Saturday, Nov. 18, from Vandenberg Air Force Base, California. Launch coverage will be carried live on NASA Television and the agency's website.

Liftoff aboard a United Launch Alliance Delta II rocket from Space Launch Complex 2 is targeted for 4:47 a.m. EST (1:47 a.m. PST).

NASA TV launch coverage begins at 4:15 a.m. and will conclude after the deployment of four small satellite missions, called CubeSats, which will accompany JPSS-1 as payload on the Delta II rocket. There is no planned post-launch news conference. A post-launch news release will be issued as soon as the state-of-health of the spacecraft is verified.
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Last Updated: Nov. 16, 2017
Editor: Sean Potter

:?:

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Прогноз погоды L-2 на 2017-11-18

L-2 Weather Forecast - 16 Nov

100% GO

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ULA‏Подлинная учетная запись @ulalaunch 8 мин. назад

Our Delta II rocket launch with the JPSS-1 weather observatory for @NASA and @NOAA is scheduled for early Saturday morning! Live webcast begins at 1:15 a.m. PST (4:15 a.m. EST; 0915 UTC). http://www.ulalaunch.com/nasa 

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Прогноз погоды L-1 на 2017-11-18

L-1 Weather Forecast - 17 Nov
 
 100% GO

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Chris B - NSF‏ @NASASpaceflight 6 ч.6 часов назад
And of course, the ULA Delta II launch of JPSS-1 is still on track for 1:47 a.m. PST (4:47 a.m. EST, 9:47 UTC) on Saturday. There's always something to look forward to when you're a rocket fan!
 

Derrick.Stamos‏ @Helodriver2004  
@NASASpaceflight this one is still on the pad too under clear skies 13 hours to launch. #JPSS1
 

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11/18/2017 02:10

The Delta 2 launch crew at Vandenberg Air Force Base in California is prepping for another launch attempt early Saturday with NOAA's JPSS 1 polar-orbiting weather satellite.

The 66-second launch window opens at 1:47:03 a.m. PST (4:47:03 a.m. EST; 0947:03 GMT), but officials are expected to target liftoff in the middle of the window.

Спойлер

This afternoon at Space Launch Complex 2-West, technicians will wheel away the mobile gantry from the Delta 2 rocket, revealing the launcher on its mount overlooking the Pacific Ocean.

The three-hour countdown will commence at 10:47 p.m. PST (1:47 a.m. EST; 0647 GMT), and the launch team will load refined RP-1 kerosene and liquid oxygen into the Delta 2's first stage. The rocket's second stage consumes pre-loaded storable liquid propellants, and the nine strap-on boosters are solid-fueled.

The weather outlook calls for a 100 percent chance of acceptable conditions at the launch pad during Saturday's brief launch window.

A front passed through the area Friday, and forecasters predict drying and cooler conditions during the countdown.

Conditions at launch time should be favorable, with northerly winds of 15 to 20 knots and temperatures in the upper 40s to lower 50s Fahrenheit.

Winds aloft are not expected to be as strong Saturday morning as they were Wednesday, when the upper level winds exceeded range safety constraints.

The strongest high-altitude winds should be around 85 knots between 40,000 and 45,000 feet, but the final say on the acceptability of the winds aloft will come from data collected by weather balloons launched in the final hours of the countdown.

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ULA‏Подлинная учетная запись @ulalaunch 3 ч. назад

The Space Launch Complex 2 gantry has been retracted, revealing the Delta II rocket for tonight's countdown and liftoff with the JPSS-1 spacecraft.

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Tory Bruno‏Подлинная учетная запись @torybruno 2 ч. назад

Weather is looking good. #JPSS1

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ULA‏Подлинная учетная запись @ulalaunch 1 ч. назад

We have added spectacular photos to our Multimedia Gallery from today's sunset at the Delta II rocket launch pad: http://www.ulalaunch.com/file-library.aspx?launchEventID=288 ... Photos: ULA/Jeff Spotts and Walter Scriptunas II

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ULA‏Подлинная учетная запись @ulalaunch 10 мин. назад

The launch team is on console and readying the Delta II rocket and JPSS-1 weather observatory for the trek into space tonight from Vandenberg Air Force Base, California. Liftoff time is 1:47 a.m. PST (4:47 a.m. EST; 0947 UTC)