1 00:00:00,699 --> 00:00:09,575 [ Music ] 2 00:00:20,186 --> 00:00:24,290 >> [Background music] When we fly SOFIA to New Zealand, 3 00:00:24,290 --> 00:00:28,194 we are providing access to astronomical objects 4 00:00:28,194 --> 00:00:32,231 that we don't have access to here in the Northern Hemisphere, 5 00:00:32,231 --> 00:00:34,700 a different part of the sky, 6 00:00:34,700 --> 00:00:38,170 the Magellanic Clouds, Southern Cross. 7 00:00:38,170 --> 00:00:41,540 >> One of my favorite objects in the southern sky is the center 8 00:00:41,540 --> 00:00:43,476 of our own Milky Way Galaxy. 9 00:00:43,476 --> 00:00:45,678 There's a supermassive black hole there, 10 00:00:45,678 --> 00:00:48,647 stars orbiting it, gas clouds around it. 11 00:00:48,647 --> 00:00:50,116 SOFIA will be able to observe these 12 00:00:50,116 --> 00:00:52,418 and study the center of our galaxy. 13 00:00:52,418 --> 00:00:55,387 >> SOFIA stands for stratospheric observatory 14 00:00:55,387 --> 00:00:57,356 for infrared astronomy. 15 00:00:57,356 --> 00:01:00,226 It is a jumbo jet Boeing 747 aircraft 16 00:01:00,226 --> 00:01:04,463 that has been retrofitted with a 2-1/2 meter infrared telescope 17 00:01:04,463 --> 00:01:09,735 that was built by our partner, the German Aerospace Center. 18 00:01:09,735 --> 00:01:14,240 It flies above 99% of the water vapor in the earth's atmosphere 19 00:01:14,240 --> 00:01:17,243 and that is the location that is required 20 00:01:17,243 --> 00:01:20,646 to do infrared astronomy. 21 00:01:20,646 --> 00:01:22,615 >> SOFIA has unique capabilities. 22 00:01:22,615 --> 00:01:25,518 It can detect light in a part of the electromagnetic spectrum 23 00:01:25,518 --> 00:01:29,822 that can't be detected by any other observatory. 24 00:01:29,822 --> 00:01:32,892 >> SOFIA does a lot of unique science. 25 00:01:32,892 --> 00:01:36,228 We look at the formation of stars. 26 00:01:36,228 --> 00:01:41,834 We also study the formation of planetary systems around stars. 27 00:01:41,834 --> 00:01:43,903 We also will do planetary science 28 00:01:43,903 --> 00:01:45,871 within our own solar system 29 00:01:45,871 --> 00:01:49,275 and the Pluto occultation is a perfect example of that. 30 00:01:49,275 --> 00:01:52,978 Conducting an observation of an occultation is probably one 31 00:01:52,978 --> 00:01:56,582 of the more challenging missions that SOFIA can do. 32 00:01:56,582 --> 00:02:02,121 An occultation is essentially a situation where a planet, 33 00:02:02,121 --> 00:02:06,025 in this case Pluto, is passing in front of a background star, 34 00:02:06,025 --> 00:02:09,695 kind of like an eclipse, and when Pluto does that, 35 00:02:09,695 --> 00:02:13,098 we will be able to see the effects of the light 36 00:02:13,098 --> 00:02:15,134 as it passes through Pluto's atmosphere. 37 00:02:15,134 --> 00:02:18,637 And we can use that light to determine what is happening 38 00:02:18,637 --> 00:02:21,340 in Pluto's atmosphere, how deep it is, whether 39 00:02:21,340 --> 00:02:26,812 or not there's winds, and help characterize the situation. 40 00:02:26,812 --> 00:02:29,281 The shadow of this occultation is going to occur 41 00:02:29,281 --> 00:02:30,683 in the middle of the ocean. 42 00:02:30,683 --> 00:02:31,951 There isn't another telescope 43 00:02:31,951 --> 00:02:35,888 that can take advantage of this opportunity. 44 00:02:35,888 --> 00:02:40,292 The aircraft is moving at about 500 miles an hour. 45 00:02:40,292 --> 00:02:43,329 The shadow that is being cast on the surface of the Earth 46 00:02:43,329 --> 00:02:46,899 by Pluto is moving at orbital velocities. 47 00:02:46,899 --> 00:02:49,668 We will really need a teamwork effort in order 48 00:02:49,668 --> 00:02:54,807 to successfully observe Pluto during its occultation. 49 00:02:54,807 --> 00:02:59,011 On the night of the observation, while SOFIA is in flight, 50 00:02:59,011 --> 00:03:01,513 there will be a team of observatories 51 00:03:01,513 --> 00:03:05,584 that will help SOFIA: The Anglo-Australian Telescope, 52 00:03:05,584 --> 00:03:09,121 Lowell Observatory, the Naval Observatory at Flagstaff, 53 00:03:09,121 --> 00:03:12,324 the Discovery Channel Telescope will be making last-minute 54 00:03:12,324 --> 00:03:13,993 observations of Pluto. 55 00:03:13,993 --> 00:03:16,829 They will provide observation data to MIT 56 00:03:16,829 --> 00:03:19,298 and MIT will update their predictive model 57 00:03:19,298 --> 00:03:21,934 of where the shadow of the Pluto occultation is going 58 00:03:21,934 --> 00:03:22,935 to be on the Earth. 59 00:03:22,935 --> 00:03:24,236 We will receive that update. 60 00:03:24,236 --> 00:03:27,406 We will modify our flight plan and position SOFIA 61 00:03:27,406 --> 00:03:30,276 where it needs to be to intercept the shadow. 62 00:03:30,276 --> 00:03:32,611 The data that SOFIA is going to collect 63 00:03:32,611 --> 00:03:35,581 when we observe the Pluto occultation will help 64 00:03:35,581 --> 00:03:39,018 characterize the atmosphere on Pluto 65 00:03:39,018 --> 00:03:42,321 and it'll also provide data that could be used for calibration, 66 00:03:42,321 --> 00:03:44,923 a ground truth source of data 67 00:03:44,923 --> 00:03:47,960 that will enhance the New Horizon's mission 68 00:03:47,960 --> 00:03:49,728 in the following days. 69 00:03:49,728 --> 00:03:54,368 >> NASA New Horizons flyby July 14, 2015, is just two weeks 70 00:03:54,368 --> 00:03:57,348 after this stellar occultation that SOFIA will observe. 71 00:03:57,348 --> 00:03:58,742 That is timely. 72 00:03:58,742 --> 00:04:02,110 It means that we can use the data from SOFIA to correlate 73 00:04:02,110 --> 00:04:05,903 and corroborate the measurements that are made by New Horizons 74 00:04:05,903 --> 00:04:08,603 when it goes up close and personal two weeks later. 75 00:04:08,603 --> 00:04:13,472 We'll probe Pluto's atmosphere to extreme low levels. 76 00:04:13,480 --> 00:04:17,617 SOFIA's infrared capability is the only type of instrumentation 77 00:04:17,620 --> 00:04:19,088 that can equal that measurement. 78 00:04:19,088 --> 00:04:21,916 So by having a measurement of Pluto's atmosphere 79 00:04:21,920 --> 00:04:24,423 from another platform from SOFIA, 80 00:04:24,423 --> 00:04:28,124 taken with almost the same type of sensitivity, 81 00:04:28,124 --> 00:04:30,222 can help us interpret the results 82 00:04:30,222 --> 00:04:31,821 that the New Horizon spacecraft is going 83 00:04:31,821 --> 00:04:33,188 to make two weeks later. 84 00:04:33,540 --> 00:04:40,040 [ Music ] 85 00:04:40,045 --> 00:04:41,380 >> [Background music] In order 86 00:04:41,380 --> 00:04:43,520 to successfully execute a deployment requires a tremendous 87 00:04:43,520 --> 00:04:44,540 amount of planning. 88 00:04:44,540 --> 00:04:46,880 We've been planning for this deployment for several months 89 00:04:46,880 --> 00:04:50,450 and in some cases for almost a year. 90 00:04:50,450 --> 00:04:52,242 Essentially, what we're doing is we're taking all 91 00:04:52,242 --> 00:04:53,541 of our home-base operations 92 00:04:53,541 --> 00:04:55,709 and we're transplanting those operations 93 00:04:55,709 --> 00:04:57,369 to Christchurch, New Zealand. 94 00:04:58,000 --> 00:05:00,168 The last time we were in New Zealand, 95 00:05:00,168 --> 00:05:01,862 we operated with a single instrument 96 00:05:01,862 --> 00:05:03,862 and we were very successful in doing so. 97 00:05:03,862 --> 00:05:04,995 This time around, we're going 98 00:05:05,000 --> 00:05:07,202 to increase our science instrument complement 99 00:05:07,202 --> 00:05:08,635 by a factor of four. 100 00:05:08,640 --> 00:05:10,575 We're going to take four different instruments. 101 00:05:10,580 --> 00:05:12,782 We're going to change them out in location. 102 00:05:12,782 --> 00:05:14,983 We're going to support all of those instruments 103 00:05:14,983 --> 00:05:19,017 and so the tremendous amount of logistics, detail planning 104 00:05:19,020 --> 00:05:22,323 that is required to successfully conduct those operations 105 00:05:22,323 --> 00:05:25,957 that we'd normally do at home is quite challenging. 106 00:05:25,960 --> 00:05:30,598 >> Astronomy demands that we develop very sensitive cameras, 107 00:05:30,600 --> 00:05:32,369 very sensitive optical systems, 108 00:05:32,369 --> 00:05:35,763 the ability to detect faint sources amongst a noisy 109 00:05:35,763 --> 00:05:39,330 background and once we have that capability, 110 00:05:39,330 --> 00:05:40,822 we can apply it in other areas. 111 00:05:40,822 --> 00:05:42,955 It's been used in medical imaging. 112 00:05:42,960 --> 00:05:45,796 It's been used in homeland security, 113 00:05:45,800 --> 00:05:49,070 but the most important reason we study astronomy is to understand 114 00:05:49,070 --> 00:05:50,362 that place in the universe. 115 00:05:51,517 --> 00:05:56,157 [ Music ] 116 00:05:56,160 --> 00:05:57,295 >> I'm looking forward 117 00:05:57,300 --> 00:05:59,602 to a very successful Southern Hemisphere deployment