CYGNSS (x8) – Pegasus XL – Канаверал, L-1011 Stargazer – 15.12.2016 13:35 UTC

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The flight of Orbital ATK's Pegasus XL rocket has been delayed again to resolve a concern associated with software used by the the eight spacecraft awaiting launch to begin surveying hurricane winds from orbit.
The concern is with flight parameter data used by spacecraft software, NASA and Orbital ATK said in a joint statement.
"The issue was discovered during routine testing Tuesday," the statement said. "The new flight parameter data have undergone verification testing on the engineering model, and will be uploaded to the spacecraft on Wednesday. The uploading of new flight data is a very routine procedure, and is expected correct the issue. The next launch attempt will be determined pending the results of ongoing tests."

[Salo]

James Dean ‏@flatoday_jdean  2 ч2 часа назад  
NASA confirms Pegasus/#CYGNSS launch set for 8:26am ET Thursday, after today's upload of new flight parameter data into spacecraft.

[Salo]

http://www.orbitalatk.com/news-room/feature-stories/Pegasus43_MissionPage/default.aspx?prid=180

Mission Update: Pegasus Flight #43 (CYGNSS)

 

Launch Date:	December 15, 2016
Launch Site:	Cape Canaveral, Florida
Payload:	Cyclone Global Navigation Satellite System (CYGNSS)
Mission Customer:	NASA

Mission Update - December 14, 2016
The Pegasus launch of NASA's CYGNSS mission has been rescheduled for Thursday, December 15 at 8:26 a.m. EST. Live coverage on NASA TV will begin at 7:00 a.m. EST.
 
About the Mission

 The three-stage Pegasus XL will be used to deploy eight small satellites for NASA's Cyclone Global Navigation Satellite System (CYGNSS) mission into a Low-Earth orbit. Pegasus is carried aloft by Orbital ATK's Stargazer L-1011 aircraft to approximately 40,000 feet over the Atlantic Ocean, where it will be released and free-fall for five seconds before igniting its first stage rocket motor. With its unique delta-shaped wing, Pegasus will deliver these satellites into orbit in a little over 10 minutes.
CYGNSS, developed by the University of Michigan, will probe the inner core of hurricanes to learn about their rapid intensification. CYGNSS is designed to remedy the inability of current remote sensors to see through the heavy rain in the inner core of a hurricane or to observe changes in the storm over short periods of time.
For mission updates, follow us on Twitter @OrbitalATK and on Facebook. Images of the launch campaign are available on our Flickr and Instagram accounts.
 

 

About Pegasus

On April 5, 1990, Orbital ATK began a new era in commercial space flight when our Pegasus rocket was launched from beneath a NASA B-52 aircraft in a mission that originated from Dryden Flight Research Center in California. In the decades since its maiden flight, Pegasus has become the world's standard for affordable and reliable small launch vehicles. It has conducted 42 missions, launching 86 satellites.
This patented air-launch system provides customers with unparalleled flexibility to operate from virtually anywhere on Earth with minimal ground support requirements. Pegasus launches have been conducted from six separate sites in the U.S., Europe and the Marshall Islands, the first time a space launch vehicle has demonstrated such operational flexibility. Pegasus XL is a category 3 NASA-certified vehicle.

 More Information

Flight 43 Mission Fact Sheet
Pegasus Fact Sheet
Pegasus Mission History
Pegasus Users Guide

[silentpom]

Bizonich пишет:
Здрасте, 15 пусков за 17 лет, это почти по одному с половиной в год

ниачем. не дельтахэфи чай

[А.Фарафонов]

В 16:26 мск запуск? В названии темы неправильно время указано?

[Salo]

NASA_LSP ‏@NASA_LSP 1 ч1 час назад
NASA_LSP Ретвитнул(а) NASA_LSP
Due to Collision Avoidance (COLA) cutouts, the targeted launch time is now 8:35 a.m. EST/1335 GMT. #CYGNSS on #Pegasus

[Salo]

NASA_LSP ‏@NASA_LSP 19 мин.19 минут назад
Weather has increased to 90% GO for today's #Pegasus launch of #CYGNSS.  
remain Cumulus primary concern. Targeting 8:35 a.m. EST/1335 GMT.

[Прол]

https://www.nasa.gov/multimedia/nasatv/index.html#public
пошла трансляция.

[Salo]

Chris B - NSF ‏@NASASpaceflight  15 мин.15 минут назад  
And we're live! Pegasus - with CYGNSS - launch coverage: https://forum.nasaspaceflight.com/index.php?topic=34361.msg1619366#msg1619366 ... 30 mins to departure.
 

[Salo]

Chris B - NSF ‏@NASASpaceflight  5 мин.5 минут назад  
Requesting to check the hydraulic pump pressures......and they are nominal! (Remember the first attempt).
 
 
  Chris B - NSF ‏@NASASpaceflight  6 мин.6 минут назад  
We can see you, chase plane!
 
 
  Chris B - NSF ‏@NASASpaceflight  13 мин.13 минут назад  
Take off! Stargazer and Pegasus ready for take off.
   
 

[Сергио]

на флайтрадаре тож появился

[Salo]

Chris B - NSF ‏@NASASpaceflight  1 мин.1 минуту назад  
Departing Cape Canaveral. Pegasus - carried on the belly of Stargazer - is in the air ready for today's launch attempt of CYGNSS.
   
   
   
 
 
  Chris B - NSF ‏@NASASpaceflight  5 мин.5 минут назад  
Chase plane in the air. Nice show off pull up at the end.
   
   
 

[Salo]

James Dean ‏@flatoday_jdean  2 мин.2 минуты назад  
L-1011 Stargazer, Pegasus XL are in the air. Drop/launch 39K feet over Atlantic, 125 miles east of Daytona, targeted 8:35am. #CYGNSS

[А.Фарафонов]

Хорошее качество картинки 

[Salo]

http://spaceflightnow.com/2016/12/12/cygnss-mission-status-center/

14:45

T-minus 50 minutes and counting. Stargazer is following a predetermined course commonly called "the race track" patten to reach the precise point where the Pegasus can be released for launch. This ferry flight lasts about an hour, flying east from Cape Canaveral, making a U-turn and then coming back around to launch the rocket.

[Salo]

Chris B - NSF ‏@NASASpaceflight  4 мин.4 минуты назад  
Next time you're on a flight, check there isn't a rocket underneath... This never gets old. #AirLaunchIsCool
 

[Salo]

NASA_LSP ‏@NASA_LSP 3 мин.3 минуты назад
The "racetrack" that the L-1011 #Stargazer will be flying to take #Pegasus to the drop point for #CYGNSS launch at 8:35am EST/1335 GMT
 Orbital ATK, NASA Kennedy / KSC и 45th Space Wing
 

[Сергио]

синхронно на обоих сайтах дают:

[Чебурашка]

А почему азимут пуска  ракеты под углом к курсу самолёта?