NASA EOS TERRA Satellite Launch NASA EROS Tape 1

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A 1999 video on the NASA EOS TERRA Satellite Launch NASA EROS - Part 1


Date Taken:

Length: 00:58:30

Location Taken: US


Check 666.
- Atlas LO2 at 50%.
- AO?This is TC.
- AO.
- You have status on 664?
- Check 664. 
Final line is complete.
Should I go ahead with 65?
- Yes. That’s affirmative.
- [inaudible] check 665.
- Check 667, 668, and 669.
- Atlas LO2 at 60%.
- Check step 670. 
- Centaur LH2 at 5%.
Check step 671.
- Atlas LO2 at 70%.
- Centaur LH2 at 10%.
- Atlas LO2 at 80%.
- Centaur LH2 at 20%.
- Atlas LO2 at 90%.
- Centaur LH2 greater than 25%.
- Check step 672.
Check step 673.
Check 674.
- This is Atlas launch control at T minus 50 minutes, 13 seconds, and counting.

The Atlas IIAS vehicle had extensive testing and check-out since its erection at Space Launch Complex 3 East.

So we’ll look now at the start of that process with the arrival of the Atlas rocket at Vandenberg Air Force Base and in the build-up at the launch pad.C5 transport.

[inaudible] seeing it being offloaded from the C-5.

And it was transported to Booster Assembly Building 6 at Vanderberg to undergo receiving, inspection, and check-out.

And after the booster was determined to be in readiness, it was moved from Booster Assembly Building 6 out to Space Launch Complex 3 East for erection.

And here it is arriving at the launch pad.

And it’s being attached to the launcher, and the launcher then raises it into the vertical position.
This occurred on September the 22nd.

The Atlas stage is 82 feet long, 10 feet wide.

And here is the inter-stage adapter that fits between the Atlas and Centaur stages. That was erected the following day on September 23rd.

And then the Centaur was erected at the pad on September the 24th.

And being hoisted out of its stand up the side of the mobile service towerand into the cavernous room inside, which holds the entire stack.

The Centaur is 33 feet long and burns liquid hydrogen and liquid oxygen.

This launch is the first flight of an Atlas-Centaur from Vandenberg  Air Force Base.

All previous missions have been with the Atlas only.

This is the boat tail, which will be then hoisted atop the inter-stage.

And the spacecraft will mate to that after it arrives at the launch pad.

After that, there was a wet dress rehearsal to verify the mechanical readiness  of the vehicle in terms of cryogenics – liquid hydrogen and liquid oxygen.

And this is done before the solid rocket boosters are installed for safety reasons.

So this is a high-fidelity test of the Atlas with all of the propellants loaded aboard.

As we see, it looks somewhat odd there without the spacecraft atop.

After that was successfully completed, then the four solid rocket boosters were brought out to the launch pad.

These are manufactured by Thiokol

They're 44.9 feet tall and 3.3 feet wide.

Two are lit on the ground at ignition for lift-off, and then two  more are lighted at altitude.

We’re continuing to proceed in the countdown.

Things are going smoothly.

Our fueling of the Centaur stage continues.

And we continue to target 10:33 for a lift-off this morning.

At T minus 45 minutes, 52 seconds, and counting, this is Atlas Launch Control.

- This is Atlas Launch Control at T minus 42 minutes, 24 seconds, and counting. We're continuing to tank the vehicle with propellants, and here we see the liquid oxygen  boil-off from the Atlas stage, which vents at the top of the Atlas  out through the inter-stage area. When we lift off, our tracking today  will be coming through several antennas.

There will be the NASA 28-foot dish here at Vandenberg as well as a pair of Air Force antennas – a 35-foot and a 30-foot dish tracking.

And then, slightly down-range at Point Mugu, there will be a Navy antenna that will track,  along with a 30-foot dish from one of the channel islands in the Santa Barbara Channel – a 30-foot antenna, so that we will have  full coverage and redundant coverage all the way through until  it’s time to acquire on the Tracking and Data Relay Satellite  System, which will occur at 12 minutes, 42 seconds,  into the flight.

And we will get our data on spacecraft separation, which occurs at 13 minutes,  40 seconds, into the mission, through the TDRS system. And then our first contact with the spacecraft a few 
minutes later through TDRS, and we’ll be able to follow the  course of the solar array and high-gain antenna deployments over the  next hour through the TDRS system.

At T minus 40 minutes, 41 seconds, and counting, this is Atlas Launch Control. Centaur LH2 at 90%.

- Commence task 7 – cryogenic topping, [inaudible] charge, vent-valve cycle tests, fill and drain valve tests, primary adjust, FTS self-test,and [inaudible] functional test.

Check 701.

- Check 702.

- Check 703.

- Check 704.

- Check 705.

- Check 706.

Check 707.

- Go ahead.

- Yes, loads ratio to 0.763

- Check seven-oh ...

- Or, 0.764. LME.

- This is LME.

- I assume you're still watching the loads ratio.

- That's affirmative.

- [inaudible] on that, so ...

- Yeah, we have – we have actual – using actual tank pressure conditions. We're not going to hit an LR1 on the vehicle until we hit 29 knots.

And we, of course, have a 1-1/4 factor of safety in excess of that. So as long as our projected winds are still at 28 max, we don't have a concern.

- LME [inaudible] on one?

- Go ahead.

- Recommend – you recommend to TC that we have a ground one monitor report for 0.9 load ratios and higher only.

- Yeah. Per the wind procedure of – let me look at that and get back to you, TC.

- I agree.

Monitor call-in at 0.9?

- Copy.

- Copy.

- This is GWM. Copy.

- Check step 705.

Check step 708.

- CTC, are we ready for 709?

- Start vent valve cycling test.

Check 709.

This is Atlas Launch Control at T minus  33 minutes, 20 seconds, and counting.

Our countdown activities continue to go  smoothly to our on-time launch at 10:33

Right now, our winds, which is the only thing we’re watching, continue to be within what we expect  will be acceptable launch conditions.

The Terra spacecraft received its final check-out in preparations for  launch at Vandenberg Air Force Base, and we have some video  showing some of those milestones, including the arrival of the spacecraft, followed by its preparation for launch.

Spacecraft arrived on April 16th, 1999, on a C-5 airplane.

And it was taken to the Astrotech Payload Processing Facility, where it was prepared for unpacking  and receiving inspections.

This was on the following day when the uncrating and the wrap  was taken off the spacecraft.

And preparations then began for processing the spacecraft, which is done almost entirely in the horizontal.

After the processing is complete, then the spacecraft is rotated to the vertical position, in preparation for encapsulation into the nose fairing. This rotation to vertical  for the final checks before encapsulation was on November the 6th.

And the spacecraft fairing, at this point, had been brought into the room.

Here we see the entire spacecraft as it will look vertically on top of the Atlas-Centaur rocket.

The fairing now, on November the 20th, is being prepared to be moved into position around Terra. And this encapsulation process is a rather emotional time for many of the spacecraft test team because it’s the last time they'll see the entire spacecraft before it launches.

On November the 23rd, it was transported from the Astrotech Payload Processing Facility out to Space Launch Complex 3 at – where it arrived at sunrise.
And was then hoisted up the side of the mobile service tower.

And translated inside and made it into the boat tail.

And, at that point, the spacecraft was ready to begin its final check-outs  at the launch pad.

At T minus 29 minutes, 55 seconds, and counting, this is Atlas Launch Control.

- Check on 738.

- Check 739.

- Check 740.

This is Atlas Launch Control at T minus 27 minutes and counting.

The Terra spacecraft, as it sits atop the launch vehicle, is 22.3 feet in height, 10.4 feet in width,  and weighs 10,506 pounds. The solar arrays generate just over 2,500 watts of power for the minimum design life of Terra, which is six years.

It will placed into a 432.4-statute-mile-high apogee, or high point, with a perigee, or low point, of 408.3 statute miles at an inclination of 98.3 degrees.

Terra will orbit the Earth every 99 minutes and will cover the same place on Earth every 16 days.

The launch azimuth is 186.2 degrees – 186 degrees, which is just off of due south.

It’ll move down-range from Vandenberg over the Santa Barbara Channel.

And the ground-lit solids, after they drop off,will impact the oceanabout 35 nautical miles  down-range.

The air-lit solids will impact the ocean at 100 nautical miles down-range. The stage-one engines,  535 miles down-range. The fairing comes off after that, which will impact the ocean 595 miles down-range. And then the Atlas stage, after it has done its entire job, the tankage and the sustainer engines impact at 1,018 miles down-range.

At this time, we’re not seeing an issue with our winds.

We’ll have a final weather briefing coming up here in about another seven or eight minutes,  but at this time, everything appears to be go for a launch at 10:33 this morning.

At T minus 24 minutes, 28 seconds, and counting, this is Atlas Launch Control.
- Centaur vent-valve cycle test complete. Check 752.

- Resume Centaur LH2 topping.

 Check 753.

- Check 754.

- Resume Centaur LO2 topping.

Check 755.

- Check 756.

- FTS open-loop self-tests are complete. Check 757.

- Check 758.

- Check 759.

Flight control, primary adjust task is complete.

Pitch program papa, one, two, one, underscore, one, four, one and yaw program yankee, one, two, one, underscore, one, four, one have been received and loaded into the [inaudible].

All flight constants have been verified.

Check 760.

- Check 761.

- The LO - step 762, stand by for an update on winds. inaudible] on countdown net one with  item 762, current conditions at the pad, we've got scattered – some scattered mid- and high level clouds, good visibility. Current wind speed is 17 knots out of a direction of 310.

Current temperature at the pad is 59 degrees Fahrenheit.

Forecast conditions for T zero expect no change in cloud cover and visibility.

Forecast winds, max for T zero of 22 knots from direction 330.

Minimum temperature of 58, max 64.

For T plus 180 minutes, maximum forecast wind of 28 knots from direction 330.
Minimum temperature, 58. Max, 64.

All weather conditions are within launch constraints. Check item 762.

This is Atlas Launch Control at T minus16 minutes, 49 seconds, and counting.

Our next major event will be the final weather briefing of the countdown, which will be going to the launch director and the NASA mission director.

That will be coming up in about another minute.

We’ll be going into the final built-in hold at 10:13 Pacific time at T minus five minutes, and that 
will be a 15 minutes built-in hold.

So we’ll be standing by now for the weather briefing.

At T minus 16 minutes, 14 seconds and counting, this is Atlas Launch Control. Attention on the weather conference net. Stand by for the weather briefing.

All stations acknowledge. LWO.

- LWO.

- Senior MFCO.

- Senior MFCO.

- LD.

- LD.

- MD.

- MD.

- Space lift commander.

- Space lift commander.

- I will proceed with the T zero forecast 
and [inaudible] lightning assessment.

- This is the launch [inaudible] officer.

This briefing will be conducted using channels  10, 12, 13, and 14.

On channel 10, we have our current satellite loop.

And you can see the upper-level system has moved through,and winds behind the system did  increase over the last 45 minutes or so. The system looked like it – looks like it  moved through about 17:50 into 17:30 –sometime in that timeframe.

And the winds did increase behind it.

Just some scattered clouds have moved in with that system, but they are no concern, as they are fairly thin, and they are scattered. And on to channel 12.

This is our current wind trend over the last five hours at Slick 3.

You can see, starting at about 17:25, 17:15, in that range, the winds  did start bumping up a little bit.

The highest wind speed we’ve seen over the last hour has been 20 knots.

Currently, the wind speed is 18 knots out at the pad from a direction of 320.

And again, looking for about 22 – or, the lift-off max.

And channel 13, we’ve got – well, this is a little bit old trend, but winds have been remaining out of the northwest pretty solid over the last two hours.

And on to channel 14, we’ve got our continued weather briefing.

No weather warnings, watches, or advisories issued or in effect at this time.

And for the launch forecast, just going with some scattered altostratus from 15 to 18,000.

Some scattered cirrus, 24 to 26,000. Good visibility. No significant weather.

Temperature  ranging 58 to 64.

Current temperature at the pad is 59 degrees. And winds for lift-off, 330 at 15, gusting to 22.

And range – safety weather constraints, all are green and expected to remain green.

And launch agency weather constraints, surface winds – again, that’s the  main concern – through the window.

And, again, with surface winds, we’re looking for 22 for lift-off.

And should we not go, we’re looking for a max of 28 in the three hours following the proposed T zero.

And overall probability of violation for weather constraints is 40% due to launch drift winds and tower roll winds.

This concludes my portion of the briefing. Are there any questions?

- Senior MFCO, proceed to the latest toxic debris and nozzleclosure assessments.

- This is the senior MFCO. The final toxic assessment is green. The current debris model is green.

We have one more update pending prior to T zero.

The current nozzle assessment is green with one more assessment ending prior to T zero.

For the final nozzle – actually, for the current nozzle assessment, we mitigated a risk to tracking site 91 by having those folks evacuate their site and move to take shelter in Tran Peak, and that  has been accomplished. So we are in a green condition for nozzles currently.

- [inaudible] senior MFCO, indicate clear 
to proceed. All stations acknowledge.

- LWO.

- Senior MFCO.

- Senior MFCO.

- LD.

- LD.

- MD.

- MD.

- Space lift commander.

- Space lift commander.

- Weather conference net clear.

This is Atlas Launch Control at T minus 10 minutes, 39 seconds, and counting.

We just had our final weather briefing for the mission.

And we’ll look now at a replay of some activity which occurred earlier this morning, which was the rollback of the mobile service tower from around the Atlas rocket.

That began at 10:18 this morning.

Or, rather – excuse me – at 7:18 this morning, Pacific time,  at just about sunrise.
Space Launch Complex 3 East was originally built in 1959 for the Atlas program, and its first use was in July 1961.

It was modified for the Atlas E and F rockets in 1978,and again in 1982 for the Atlas H.

Work began in 1993 to build an entirely new pad structure for the current Atlas IIand Atlas IIAS families of vehicles, which was completed in 1996.

The AC-141 vehicle, which is the numbering on today’s Atlas IIAS rocket, was erected at Space Launch Complex 3 East in September 1997 and underwent a series of tests, which collectively verified the readiness for both the new launch pad and a new launch vehicle for the Terra launch.

This is the first launch of a Centaur from Vandenberg Air Force Base using  a Centaur upper stage.

The rocket, as we see it there live on the pad now, with the spacecraft atop,  weighs 528,190 pounds.

And it’s 162 feet tall as it stands next to the umbilical tower.

In just another few minutes,we’ll be entering thefinal 15-minute built-in hold.

And we’ll have a final polling of the launch team and the NASA spacecraft team and the mission team.

At T minus 8 minutes, 22 seconds, and counting, this is Atlas Launch Control.

This is Atlas Launch Control at T minus 7 minutes, 33 seconds, and counting.

We’ve just received word that the upper-level winds are red.

And we will extend the hold at T minus 5, which we’ll be coming into shortly.

So we expect to have additional balloon data, which we are cautiously hopeful will give us  a go before the end of the launch window, which expires at 10:58 this morning.

So, at this time, we do not expect to launch right at 10:33.

We’ll be watching for additional upper-level wind data

And …
… we’re approximately a minute and a half away from going into  that built-in hold.

At T minus 6 minutes, 39 seconds, and counting, this is Atlas Launch Control.

This is Atlas Launch Control at T minus 5 minutes, 5 seconds, and counting. Stand by to go into the built-in hold in 2, 1 – we’re now at T minus 5 minutes and holding.

This is a hold that normally would last 15 minutes, however because we’ve been advised that the upper-level winds are red, we will be extending that built-in hold while we wait for some additional balloon data.

Right now, we don't have an exact launch time, but we expect it’ll be somewhere  around 10:45, as far as either launch or picking up the countdown one.

We’ll continue to assess this based on the wind data that comes in.

So at T minus 5 minutes and holding, this is Atlas Launch Control.

- Flight control, final preps are complete.

Pitch program papa, one, two, one, underscore, one, four, one and yaw program yankee, one, two, one, underscore, one, four, one.

[inaudible] flight check sum alpha, alpha, frank, two have been received, loaded into the 
[inaudible], and verified. Check 802.

- Check 803.

- Check 804.

- Check 805.

- Check 806.

- Check 807.

- Check 808.

- Check 809.

- Check 810.

Check 811.

Check 812.

- Check 813.

- Check 814.

Check 815.

- 816 is void.

- Check 817.

- Check 818.

- Check 819.

- Check 820.

- Check 821, 822.

All personnel not directly involved with countdown operations, clear control center, ground computer system area, and data monitoring room.

Conversation in the launch control center, ground computer system area, and data room will be limited to that required to support operations.

- Check 823.

- AMD, this is [inaudible]management.