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The Planetary Society Weblog
By Emily Lakdawalla
Canned Phoenix, anyone?
Jul. 24, 2007 | 10:11 PDT | 17:11 UTC
The last time I posted photos of Phoenix was two months ago, and they've made a lot of progress since then, preparing for their launch.
First, here's a neat photo from about a month ago, when they were showing off Phoenix to the media. We're looking at the underside of the spacecraft, so you can see the three footpads (white circles) and the twelve thrusters (currently capped with red plugs) that represent Phoenix' landing system. The belly of the PhoenixOn June 26, 2007, photographers were treated to a view of the Phoenix Mars lander, encased in its backshell. The view is of the underside of the spacecraft. Credit: NASA / Kim Shiflett |
Here, the spacecraft has been flipped over, and is being lifted onto its upper stage booster. This was a week ago.Phoenix is mated to its upper stage boosterIn the Hazardous Payload Processing Facility at Kennedy Space Center on July 17, 2007, the Phoenix Mars lander is guided on to its upper stage booster. Credit: NASA / Dimitri Gerondidakis |
Two days later, on the 19th, they topped the stack off with the heat shield.Mounting the heat shield onto PhoenixIn the Hazardous Payload Servicing Facility, workers guide the heat shield onto the Phoenix Mars lander. The heat shield will protect the lander and slow its descent into Mars' atmosphere. Credit: NASA / Troy Cryder |
With that, all of the indoor work on Phoenix was completed, and it was time to transport the spacecraft to the launch pad. But transporting the spacecraft any distance, no matter how short, requires very careful packing. This seems a little odd, given the tremendous shocks and forces that the spacecraft will endure during its launch, but those shocks the spacecraft was designed for; it was not designed to survive, say, tipping over and crashing sideways to the ground. So they have to pack and handle the spacecraft very carefully when they move it. I think it's amusing that they refer to this step as "canning" the spacecraft.Canning PhoenixOn July 20, 2007, in the Hazardous Payload Processing Facility at Kennedy Space Center, Phoenix is prepared for transport to its launch pad. The spacecraft has been mated to its upper stage booster, wrapped in protective plastic, and placed atop one half of a shipping canister. The top of the shipping canister is being lowered to cover the spacecraft. Credit: NASA / Kim Shiflett |
Yesterday, Phoenix met its rocket: Lifting Phoenix to the top of the mobile service towerIn the early morning hours of July 23, 2007, Phoenix (encased in a protective shipping canister) is lifted to the top of the mobile service tower at launch pad 17-A at Cape Canaveral Air Force Station. Credit: NASA / George Shelton |
Less than two weeks remain until the launch! Launch is scheduled for August 3 at 5:35:18 a.m. EDT (09:35:18 UTC, and an ungodly early -- or awfully late -- 2:35:18 a.m. PDT); if that launch window doesn't look good, they can try and reschedule for half an hour later, 6:11:24 a.m. EDT, before scrubbing to the next day. Here's a table of the launch times throughout the launch period, which came from NASA via Spaceflightnow.com. I've converted the times to UTC to help you calculate your local time. (Don't know your offset from UTC? My favorite website for working through time zones is timeanddate.com.)
| Date | Instant One | Instant Two |
|---|
| August 3 | 09:35:18 | 10:11:24 | | August 4 | 09:26:31 | 10:02:55 | | August 5 | 09:17:23 | 09:53:59 | | August 6 | 09:07:48 | 09:44:32 | | August 7 | 08:57:36 | 09:34:29 | | August 8 | 08:46:45 | 09:23:52 | | August 9 | 08:35:51 | 09:12:57 | | August 10 | 08:24:24 | 09:01:38 | | August 11 | 08:12:14 | 08:49:39 | | August 12 | 07:58:26 | 08:36:55 | | August 13 | 07:44:52 | 08:23:21 | | August 14 | 07:30:30 | 08:08:51 | | August 15 | 07:13:45 | 07:53:18 | | August 16 | 07:57:25 | 07:36:33 | | August 17 | 07:38:04 | 07:18:22 | | August 18 | 07:15:51 | 07:54:59 | | August 19 | 07:00:50 | 07:39:36 | | August 20 | 06:44:09 | 07:23:08 | | August 21 | 06:26:03 | 07:05:22 | | August 22 | 06:06:37 | 06:46:03 | | August 23 | 05:43:32 | 06:24:47 | | August 24 | 05:18:59 | 06:01:02 |
Meanwhile, at the other pad, the entire process was proceeding in reverse for Dawn. Back indoors for DawnOn July 22, 2007, the Dawn spacecraft and its upper stage motor were replaced in their shipping canister and removed from the Delta II launch vehicle on pad 17-B at Cape Canaveral Air Force Station. It was moved by truck back to the Hazardous Payload Processing Facility at Astrotech. It will be returned to the pad after the launch of the Phoenix mission to Mars. Credit: Top row: NASA / George Shelton. Bottom row: NASA / Charisse Nahser |
According to the captions posted with these images at the Kennedy Space Center Media Archive, Dawn's new launch period is from September 7 to October 15. According to my calendar, September is also when Chandrayaan-1 (the Indian lunar mission) is supposed to be launching, though I haven't heard an update on that lately. [EDIT: This date is wrong. It's going to be at least April 2008 before Chandrayaan-1 launches, and most likely not until the summer. I'm now working on finding out more about this. --ESL] And rumors seem to indicate that the delayed launch of Kaguya (the Japanese lunar mission) may also happen that month. Rockets launching everywhere!
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