NROL-76 – Falcon 9 – Кеннеди LC-39A – 01.05.2017 11:15 UTC

[Apollo13]

Безумный Шляпник пишет:
Версия про "наследника USA-193" какая-то не слишком убедительная...

Но наклонение 51 градус все равно ведь мало похоже на Молнию?

[Безумный Шляпник]

Может быть летит что-то для экспериментов и отработки технологий, а не штатный разведывательный аппарат? NRO периодически балуется запусками таких опытных спутников, как STEX или RPP.

[tnt22]

SpaceXUpdates‏ @SpaceXUpdates 5 мин. назад

Currently less than 3 hours until launch. The area around the pad should be beginning evacuation at this time.

[tnt22]

Безумный Шляпник пишет:
Может быть летит что-то для экспериментов и отработки технологий, а не штатный разведывательный аппарат? NRO периодически балуется запусками таких опытных спутников, как STEX или RPP.

Как минимум Ваши мысли перекликаются #173

This suggests that the payload could either be the first of a new series of satellite or – more likely – a technology demonstration mission. The NRO has occasionally launched spacecraft dedicated to research and development, most recently the Rapid Pathfinder Program (RPP) satellite launched as NROL-66 in February 2011.

[tnt22]

Свеженькое:
http://www.satobs.org/seesat/Apr-2017/0199.html

NROL-76 payload speculation

 From: C. Bassa via Seesat-l < seesat-l_at_satobs.org >
 Date: Sun, 30 Apr 2017 10:44:05 +0200
The intended orbit for the NROL-76 mission, slated for launch on a
Falcon 9 between 11:00 and 13:00UT, today remains a mystery.
 
These are the facts that we can consider known:
* the launch hazard area is consistent with a 50 deg inclination
* the de-orbit hazard ara is also consistent with a 50 deg inclination
* the launch window is not planar (the April 16 launch date also had
  11:00 to 13:00UT)
* the de-orbit hazard area is valid from 03h38m to 6h15m after launch

Спойлер

All these facts can be considered peculiar. To my knowledge, no NRO
launches have targeted orbits inclined at 50 deg, and all launches,
except perhaps missions to GSO, had planar windows.
 
Furthermore, the long time between launch and de-orbit is not
compatible with previous Falcon 9 launches. On recent CRS missions (8,
9 and 10), the de-orbit area was valid from about 00h26m to 01h19m
after launch, indicating the second stage was de-orbited before it
completed a full orbit, with the impact point South West of
Australia. The Orbcomm OG-2 mission, targeting a 47deg orbit, had a
similar location and time range for the de-orbit area.
 
During the Jason 3 and Iridium NEXT missions, the second stage
performed a circularization burn at 00h55m (Jason 3;
1296kmx1321km_at_66deg) and 00h52m (Iridium NEXT; 618kmx627km_at_87deg)
after launch. Here, the de-orbit areas were valid between
01h06m-02h07m and 01h52m-02h48m after launch, respectively.
 
If NROL-76 targets LEO, why de-orbit the second stage only after about
2.5 orbits?
 
I wonder if instead NROL-76 targets some sort of MEO/HEO orbit. If so,
it may be expected that perigee is located in the South to allow the
second stage to be de-orbited off the coast of Africa.
 
Regardless of the target orbit, it'll be an interesting challenge to
locate the NROL-76 payload.

[свернуть]

Regards,
   Cees

[tnt22]

Spaceflight101 LIVE‏ @S101_Live 9 мин. назад

Two hours to the opening of today's #Falcon9 launch window. Launch Hazard Area going into effect -> http://www.patrick.af.mil/Portals/14/documents/Launch%20Hazard%20Area%20Maps/4-25-2017%20LHA%20SpaceX%20NROL-76.pdf?ver=2017-04-25-160135-443 ...

[tnt22]

Похоже, сдвиг вправо на 15 мин

Spaceflight101 LIVE‏ @S101_Live 1 мин. назад

#Falcon9 T-0 appears to have moved to the right by 15 minutes.

[tnt22]

Ходики в правом верхнем углу на 12:13 ДМВ
 

[tnt22]

Пересчет времён на T-0 07:15:00 EDT[TH]COUNTDOWN[/TH][TH]
[/TH][TH]EDT[/TH][TH]UTC[/TH][TH]ДМВ[/TH][TH]Hh:Mm:Ss[/TH][TH]Events[/TH][TH]
[/TH][TH]
[/TH][TH]
[/TH][TH]01:13:00[/TH][TH]01:10:00[/TH][TH]00:45:00[/TH][TH]00:07:00[/TH][TH]00:02:00[/TH][TH]00:01:30[/TH][TH]00:01:00[/TH][TH]00:01:00[/TH][TH]00:00:03[/TH][TH]00:00:00[/TH]

Launch Conductor takes launch readiness poll	06:02:00	10:02:00	13:02:00
RP-1 (rocket grade kerosene) loading underway	06:05:00	10:05:00	13:05:00
LOX (liquid oxygen) loading underway	06:30:00	10:30:00	13:30:00
Falcon 9 begins engine chill prior to launch	07:08:00	11:08:00	14:08:00
Range Control Officer (USAF) verifies range is go for 1st stage return	07:13:00	11:13:00	14:13:00
SpaceX Launch Director verifies go for launch	07:13:30	11:13:30	14:13:30
Flight computer commanded to begin final prelaunch checks	07:14:00	11:14:00	14:14:00
Propellant tank pressurization to flight pressure begins	07:14:00	11:14:00	14:14:00
Engine controller commands engine ignition sequence to start	07:14:57	11:14:57	14:14:57
Falcon 9 liftoff	07:15:00	11:15:00	14:15:00

[tnt22]

45th Space Wing‏ @45thSpaceWing 8 мин. назад

@SpaceX #Falcon9 will launch @NatReconOfc #NROL76 in just under two hours. Shooting for a T-0 of 7:15 a.m.!

[xatkoff]

tnt22 пишет:
Ходики в правом верхнем углу на 12:13 ДМВ

"ходики" убрали...

[tnt22]

Spaceflight101 LIVE‏ @S101_Live 3 мин. назад

Final RF link checks and Flight Termination System testing should be wrapping up at this point to clear the way for fueling. #Falcon9

[tnt22]

04/30/2017 12:32  New launch time
The U.S. Air Force 45th Space Wing reports the Falcon 9 countdown is targeting a launch time of 7:15 a.m. EDT (1115 GMT).

The launch conductor's prelaunch poll is expected around 6:02 a.m. EDT (1002 GMT) to give approval to start fueling the two-stage launcher.

[tnt22]

William Harwood‏ @cbs_spacenews 35 сек. назад

F9/NROL76: Liftoff from pad 39A at the Kennedy Space Center is targeted for 7:15am EDT; low clouds in the area, but no updated forecast yet

[tnt22]

Spaceflight101 LIVE‏ @S101_Live 2 мин. назад

L-90 Minutes: Propellant Loading preps should be complete. Next is a weather briefing ahead of the tanking poll. #Falcon9

[tnt22]

04/30/2017 12:53
It's a mostly clear morning here at Cape Canaveral, with a few low clouds passing over pad 39A occasionally catching light from powerful xenon spotlights positioned around the launch complex.
There are no known weather concerns at the moment.

[tnt22]

Spaceflight101 LIVE‏ @S101_Live 15 сек. назад

L-80 Minutes: The Launch Team should be receiving a weather briefing shortly to decide whether to press for the opening of the window.

[tnt22]

[tnt22]

‏ @CwG_NSF[/url] 3 мин. назад

So far all is looking OK for #SpaceX and #Falcon9. Fueling should pick up at 6:05a EDT for a 7:15a launch of #NROL76

[tnt22]

‏ @CwG_NSF[/url] 26 сек. назад

If we're headed for a 7:15a EDT launch, the GO/NO GO fueling poll should be complete at this time. #SpaceX #NROL76 #Falcon9