ORS-5: SensorSat – Minotaur-4/Orion 38 – Канаверал SLC-46 – 26.08.2017, 03:14 UTC

[tnt22]

LiveStream on Florida_Today
 

[tnt22]

Orbital ATK‏Подлинная учетная запись @OrbitalATK 5 мин. назад

Live coverage of #MinotaurIV launch will begin as planned at 10:55 p.m. EDT with a weather update. Tune in here: http://bit.ly/2x7o20P 

[tnt22]

Похоже, Florida Today будет репетовать канал OrbitalATK...

[tnt22]

Chris G - NSF‏ @CwG_NSF 43 сек. назад

Per where the countdown clock is holding, we're realistically NET 1:45a EDT at this point. #MinotaurIV #ORS5 #OrbitalATK

[tnt22]

Chris G - NSF‏ @CwG_NSF 22 сек. назад

Per Launch Director loop. "GOOD TRENDS. Prepared to give 1hr block of 0% on lightning probability." #MinotaurIV #ORS5 #OrbitalATK

[tnt22]

[tnt22]

Chris G - NSF‏ @CwG_NSF 2 мин. назад

Range is "NO GO" at this time due to no confirmed launch time from the Launch Team. #MinotaurIV #ORS5 #OrbitalATK

[tnt22]

Chris G - NSF‏ @CwG_NSF 2 мин. назад

Weather is GREEN. 70% go odds for remainder of window.

[tnt22]

Chris G - NSF‏ @CwG_NSF 31 сек. назад

There was a technical issue on the Ground Support Equipment side that has been worked and fixed. Details attached. #MinotaurIV #ORS5

[tnt22]

Ссылка на трансляцию - http://www.orbitalatk.com/news-room/feature-stories/MinotaurIV_ORS5_Mission-Page/default.aspx
 

[tnt22]

Chris G - NSF‏ @CwG_NSF 28 сек. назад

Realistically w/ count holding @ T-2hrs 45mins, we're @ No Earlier Than 2a ET for launch. Window close @ 3a ET #MinotaurIV #ORS5 #OrbitalATK

[tnt22]

08/26/2017 06:15
The countdown clock at Cape Canaveral continues to hold at T-minus 2 hours, 45 minutes. This means the launch time is likely now pushed after 2 a.m. EDT (0600 GMT).

[tnt22]

Spaceflight101 LIVE‏ @S101_Live 3 мин. назад

The count will have to pick up in the next 60 minutes to permit liftoff within tonight's launch window. #MinotaurIV #ORS5

[tnt22]

Chris G - NSF‏ @CwG_NSF 52 сек. назад

Well people are back at he pad. That's positive. #MinotaurIV #ORS5 #OrbitalATK

[tnt22]

По сообщению Chris G на форуме NSF, трансляция Orbital отстаёт от "живых"  событий примерно на 1 мин  

[tnt22]

Chris G - NSF‏ @CwG_NSF 3 мин. назад

Per the Launch Team audio loop, we have a recycle time in work. #MinotaurIV #ORS5 #OrbitalATK

[tnt22]

Chris G - NSF‏ @CwG_NSF 2 мин. назад

Confirmed. Teams are work on recycle and a new T0 time for tonight. Window extends to 3a ET. #MinotaurIV #ORS5 #OrbitalATK

[tnt22]

08/26/2017 06:26
Once the Minotaur launch team resumes launch preps, they expect to pick up the count at T-minus 2 hours, 20 minutes.

[tnt22]

Пытаются отыграть 25 мин обратного отсчета

[tnt22]

https://spaceflightnow.com/2017/08/25/minotaur-4-launch-timeline-with-the-ors-5-satellite/

Minotaur 4 launch timeline with the ORS-5 satellite
August 25, 2017 Stephen Clark

Track the major events during the Minotaur 4 rocket's 28-minute climb into a unique equatorial orbit with the ORS-5 space surveillance satellite for the U.S. military's Operationally Responsive Space office.
Standing around eight stories tall, the five-stage rocket is set for liftoff during a four-hour launch window opening at 11:15 p.m. EDT Friday (0315 GMT) Saturday from Complex 46 at Cape Canaveral Air Force Station, Florida.

Here is a diagram of the Minotaur 4's flight sequence, and a list of major events during the rocket's ascent into space.

Спойлер

Credit: Orbital ATK

T+00:00 —  Liftoff: The first stage's decommissioned Peacekeeper SR118 solid rocket motor ignites to begin the Minotaur 4 rocket's mission. Pitch and roll commands two seconds later will put the rocket on the proper trajectory.
T+00:36 — Max-Q: Aerodynamic pressure on the vehicle reaches its peak as the Minotaur 4 accelerates through the lower atmosphere.
T+00:56 — Stage 1 Separation/Stage 2 Ignition: At an altitude of 16 miles, the rocket's ATK-built solid-fueled first stage exhausts its supply of propellant and is jettisoned. The second stage's SR119 motor ignites to continue the flight toward space.
T+01:50 — Stage 2 Burnout: The second stage SR119 motor, built by Aerojet Rocketdyne, burns out at an altitude of 58 miles.
T+02:05 — Stage 2 Separation/Stage 3 Ignition: After a 15-second coast, the Hercules SR120 third stage motor fires for a 72-second burn.
T+02:24 — Fairing Jettison: The 92-inch graphite-epoxy aluminum honeycomb payload fairing that protected the satellites during the ride through the lower atmosphere is jettisoned as the rocket ascends into space at an altitude of 81 miles.
T+03:17 — Stage 3 Burnout: The Hercules SR120 motor completes its burn and the Minotaur 4 enters a coast period lasting more than 10 minutes, during which the vehicle's altitude will soar to more than 350 miles.
T+13:44 — Stage 3 Separation: The Minotaur's third stage is released to re-enter Earth's atmosphere.
T+13:55 —  Stage 4 Ignition: An Orion 38 solid rocket motor is ignited to deliver the ORS-5 satellite and three CubeSat secondary payloads into a preliminary parking orbit between 248 miles and 372 miles (400-600 kilometers) in altitude at an inclination of 24.5 degrees.
T+15:02 — Stage 4 Burnout: The fourth stage Orion 38 motor uses up its propellant and burns out as it enters the targeted elliptical parking orbit, beginning a 10-minute coast phase.
T+17:02 — Begin CubeSat deployments: Three U.S. government CubeSats begin deploying from the Minotaur 4, separating at 30-second intervals.
T+25:07 — Stage 4 Separation: The fourth stage Orion 38 jettisons in preparation for ignition of the fifth stage Orion 38 rocket motor, a segment added to the Minotaur 4 to direct the ORS-5 satellite into its unique equatorial orbit.
T+25:18 — Stage 5 Ignition: The fifth stage Orion 38 motor ignites for a 69-second burn.
T+26:27 — Stage 5 Burnout: The Orion 38 motor burns out after reaching a circular 372-mile-high (600-kilometer) orbit over the equator.
T+28:28 — ORS-5 Separation: The 249-pound (113-kilogram) ORS-5 spacecraft separates from the Minotaur 4's fifth stage.

[свернуть]