(<span class="screen-reader-text">Posted on</span><a href="https://teslamotorsclub.com/2017/06/26/with-success-of-iridium-2-spacex-completes-two-falcon-9-landings-over-weekend/" rel="bookmark">Jun 26, 2017 at 8:42 AM</a>Contributor)

With Success of Iridium 2, SpaceX Completes Two Falcon 9 Landings Over Weekend

[vc_row][vc_column][vc_video link=”https://www.youtube.com/watch?v=7tIwZg8F9b8″ video_title=”1″][vc_column_text]SpaceX successfully launched and landed a pair of Falcon 9 rockets within a 48 hour window this weekend, a remarkable milestone for the company.

Efforts to create a game-changing commercial space company are truly beginning to materialize. During the last 14 months SpaceX has flown 15 times. What’s more, the company has successfully reused a rocket on two occasions, amounting to massive cost savings.

In fact, CEO Elon Musk has publicly taunted competitors, saying the savings amount to a free satellite.

$300M cost diff between SpaceX and Boeing/Lockheed exceeds avg value of satellite, so flying with SpaceX means satellite is basically free https://t.co/CaOulCf7ot

— Elon Musk (@elonmusk) June 16, 2017

A mission last Friday launched the BulgariaSat 1 communications satellite. BulgariaSat 1 will provide direct-to-home television broadcast and data communications services over southeast Europe for Bulsatcom. Another mission on Sunday launched another 10 spacecraft for telecommunications company Iridium, which is in the process of replacing its global network of satellites. A replay of the launch is available above.[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][/vc_column][/vc_row]

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NikeWings

Active Member

Jun 4, 2017

LMK if anyone wants to meet up there........especially if you have the perfect location.

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Piney999

Member

Jun 4, 2017

Once again, Grendal comes through.... where do you get your information from??

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ecarfan

Well-Known Member

Jun 4, 2017

My wife and I are planning to go see this launch. It will be our first "live" viewing". According to the SpaceX fans in a Facebook group (essentially the only reason I use FB is to read that group's discussion)
Vandenburg launch site best viewing location: 5014 W Ocean Ave, Lompoc, CA 93436

The FB group is a closed group that one can request to join. It is moderated by Bill Carton, who does an excellent job, along with some other admins, of keeping the discussions focused, civil, and informative. I recommend it. SpaceX

Note: the FB group is not an "official" SpaceX group, just a bunch of rabid fans.

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Electroman

Supporting Member

Jun 4, 2017

...aaaannndd lets come to the most exciting part - is it a drone ship landing? is there an RTLS in Vandenberg at all?

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NikeWings

Active Member

Jun 4, 2017

ecarfan said:
My wife and I are planning to go see this launch. It will be our first "live" viewing". According to the SpaceX fans in a Facebook group (essentially the only reason I use FB is to read that group's discussion)
Vandenburg launch site best viewing location: 5014 W Ocean Ave, Lompoc, CA 93436

I ditched FB long ago - will get my tips through you.

Thx for the info and hope to see you there!

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AudubonB

One can NOT induce accuracy with precision!

Jun 4, 2017

Yikes....isn't that the last day of TMC Connect? Or the Laguna Seca get-together?

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dhanson865

Active Member

Jun 4, 2017

This one is a possible record breaker for another reason. If BulgariaSat-1 and Iridium 2 (11-20) both launch before the end of this month as currently planned it will be the first time SpaceX has launched 3 times in one calender month.

I find the launches/manifest - spacex easier to read in some ways than the Wikipedia version and the official outward facing SpaceX version doesn't post dates.

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Grendal

SpaceX Moderator

Jun 4, 2017

Piney999 said:
Once again, Grendal comes through.... where do you get your information from??

Thank you. I get my information from a number of different sources. For the most part the SpaceX FB group that ecarfan mentioned. There are a number of actual SpaceX employees, general knowledgeable rocket enthusiasts, and SpaceX fans that also pull information from lots of sources. Launch data is from: https://spaceflightnow.com/launch-schedule/ and http://www.spaceflightinsider.com/launch-schedule/ which get their data from some official source. Occasionally they are not up to date though.

If you are really into rockets and want to converse with serious rocket enthusiasts, real rocket scientists, and insiders then https://forum.nasaspaceflight.com/ is the place to be. There is a regular section for general conversation and a section (Level 2) that you pay to get into and are sworn to not pass any of the inside information that you get there. I have not paid to get in because I wouldn't want to accidently step out of bounds. I occasionally visit the basic forum but a lot of it is too detailed for what I'm interested in.

At the speed that SpaceX seems to be moving, I am trying to limit the launch threads to just the next two unless there is something very special going on. That's why BulgariaSat popped in a little early. The 2nd reuse launch is a big event.

This launch will break the record for number of launches in one year for SpaceX with this being #9. As the previous post from dhanson865 mentions, this launch (if there are no delays) will also be the first time SpaceX has had 3 launches in one month. Which may be beat the very next month of July if the four launches on the schedule actually happen. One or two of those are likely to get moved though.

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landis

Supporting Member

Jun 5, 2017

Grendal said:
At the speed that SpaceX seems to be moving, I am trying to limit the launch threads to just the next two unless there is something very special going on.

These threads have been an awesome resource. Many thanks. And thanks for the links too!

Now I will press my luck even further.

What do you think of a new 'Upcoming SpaceX Launches" thread we could 'watch' so that these new threads would pop up in 'Unread Watched Threads"?

I've been using What's New: "Unread posts (Watched)" and "Recent threads (Watched)" in addition to alerts on this SpaceX forum, in pretty successful attempts to pick up these new threads. Is there a better way?

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Grendal

SpaceX Moderator

Jun 5, 2017

mkjayakumar said:
...aaaannndd lets come to the most exciting part - is it a drone ship landing? is there an RTLS in Vandenberg at all?

Oops. Missed your question.

The Iridiums are a very heavy payload. Luckily, they are a very heavy LEO launch. So because of the weight I don't think that an RTLS is possible for Iridium and they will always be an ASDS on JRTI.

And to answer the more important second question, yes, there is a landing pad at Vandenberg. It's very near the launch pad. Here is a picture of the last Iridium launch from SpaceX's Flickr account and you can barely see the landing pad in the background behind and to the right of the rocket:

landis said:
What do you think of a new 'Upcoming SpaceX Launches" thread we could 'watch' so that these new threads would pop up in 'Unread Watched Threads"?

I've been using What's New: "Unread posts (Watched)" and "Recent threads (Watched)" in addition to alerts on this SpaceX forum, in pretty successful attempts to pick up these new threads. Is there a better way?

Interesting. So a pinned thread of upcoming launches where a post will link to the new launch thread. Since I am not a moderator I'm not sure whether that will be too much of a pain to them or not. As far as entering that kind of data< i would have no issue.

Last edited: Jun 5, 2017

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ecarfan

Well-Known Member

Jun 5, 2017

Grendal said:
And to answer the more important second question, yes, there is a landing pad at Vandenberg. It's very near the launch pad. Here is a picture of the last Iridium launch from SpaceX's Flickr account and you can barely see the landing pad in the background behind and to the right of the rocket:

As far as I know SpaceX has not done an RTLS stage recovery at Vandenburg yet, just an ASDS stage recovery on JRTI (Just Read The Instructions).

For this particular launch I believe the plan is to use JRTI to recover the first stage.

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Grendal

SpaceX Moderator

Jun 5, 2017

ecarfan said:
As far as I know SpaceX has not done an RTLS stage recovery at Vandenburg yet, just an ASDS stage recovery on JRTI (Just Read The Instructions).

For this particular launch I believe the plan is to use JRTI to recover the first stage.

No RTLS has been done at Vandenberg. All Iridium launches will be ASDS recoveries since Iridium payloads are extremely heavy.

SpaceX has a bunch of SSO payloads coming and most seem to be extremely light. Hopefully one or more of those allow for a RTLS at Vandenberg. It will be interesting to see how SpaceX juggles these numerous lightweight satellites and their widely varying launch time frames.

Last edited: Jun 5, 2017

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landis

Supporting Member

Jun 5, 2017

Grendal said:
Interesting. So a pinned thread of upcoming launches where a post will link to the new launch thread. Since I am not a moderator I'm not sure whether that will be too much of a pain to them or not. As far as entering that kind of data< i would have no issue.

Yes, it would be a great idea if it was pinned since that would make it even easier for newcomers to find it.

It wouldn't need to be pinned to be useful. We could try it out without moderator involvement.

Nikxice

Active Member

Jun 5, 2017

Grendal said:
At the speed that SpaceX seems to be moving, I am trying to limit the launch threads to just the next two unless there is something very special going on. That's why BulgariaSat popped in a little early. The 2nd reuse launch is a big event.

This launch will break the record for number of launches in one year for SpaceX with this being #9. As the previous post from dhanson865 mentions, this launch (if there are no delays) will also be the first time SpaceX has had 3 launches in one month. Which may be beat the very next month of July if the four launches on the schedule actually happen. One or two of those are likely to get moved though.

It struck me that SpaceX is setting a launch pace that NASA could only dream of keeping more than thirty years ago flying Space Shuttles. Recalling the late 70's, I think they initially hoped to launch once a week. Then after the Challenger was lost in 1986, expectations were lowered to every two weeks. That also never came to pass. With SpaceX having multiple launch sites, keeping that pace doesn't seem so daunting. We could even see the first orbital flights from Texas sometime next year.

Whenever I read about a launch out of Vandenberg I'm reminded of those long lost manned flights during the Shuttle era. I had to look it up to confirm that it was Discovery that the Air Force was going to use at Vandenberg. Discovery was scheduled to launch shortly after Challenger went down. Unfortunately safety concerns and budget issues kept it grounded. Soon after the program was terminated. Eventually a west coast manned flight will happen. I envision that SpaceX will be the one to get it done.

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ecarfan

Well-Known Member

Jun 5, 2017

Nikxice said:
It struck me that SpaceX is setting a launch pace that NASA could only dream of keeping more than thirty years ago flying Space Shuttles.

To be fair, the Shuttle was a vastly more complex craft than an uncrewed F9.

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Grendal

SpaceX Moderator

Jun 9, 2017

Iridium is locked and loaded for their June 25th launch.

Iridium Corporate on Twitter

bxr140

Active Member

Jun 9, 2017

Nice! Was just down there only a few weeks ago and saw the bare dispensers with nary a sight of the spacecraft.

Also, checked off the SLC-4 supercharger while in town.

Grendal

SpaceX Moderator

Jun 14, 2017

The static fire for this launch is set for June 20th. That is one day after the BulgariaSat launch. The weather in Florida is bad so that launch could slip more affecting this launch. It will be interesting to see if there is an effect. Maybe there is more than one launch team now with the much more rapid launch cadence.

The weather in California is usually better than Florida for those planning on catching this launch.

Grendal

SpaceX Moderator

Jun 18, 2017

Grendal said:
The static fire for this launch is set for June 20th. That is one day after the BulgariaSat launch. The weather in Florida is bad so that launch could slip more affecting this launch. It will be interesting to see if there is an effect. Maybe there is more than one launch team now with the much more rapid launch cadence.

The weather in California is usually better than Florida for those planning on catching this launch.

It is confirmed that there is more than one launch team and it now looks like there might be a launch from each coast within 24 to 48 hours of each other....

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