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TIMED

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92: 430:(MLTI) region of the atmosphere to be studied by TIMED is located between 60 and 180 kilometres (37 and 112 mi) above the Earth's surface, where energy from solar radiation is first deposited into the atmosphere. This can have profound effects on Earth's upper atmospheric regions, particularly during the peak of the Sun's 11-year solar cycle when the greatest amounts of its energy are being released. Understanding these interactions is also important for our understanding of various subjects in 411: 951: 704:
the upper stratosphere and mesosphere, water vapor levels were increasing at an average rate of 0.1-0.2 ppmv (around 2-3%) per decade. Growth in methane levels is thought to be partially responsible for the growth in water vapor levels, as methane oxidizes into carbon dioxide and water vapor, but changes driven by the solar cycle may also be responsible.
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that caused it to overestimate water vapor levels; this error was discovered and the data were corrected. Based on the corrected data, SABER found that between 2002 and 2018, water vapor levels in the lower stratosphere were increasing at an average rate of 0.25 ppmv (around 5%) per decade, and in
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By collecting upper atmosphere data, TIMED assists the modeling of environmental impacts. Water vapor and carbon dioxide are greenhouse gases and their growth in the upper atmosphere must be factored into climate models. Additionally, upper atmosphere water vapor contributes to ozone depletion.
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failed to slow the spacecraft's spin as intended. An engineer installing the magnetorquers had mistakenly recorded the reverse of their actual polarities, which generated a sign error in the flight software. The problem was fixed by temporarily disabling the orbiter's
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TIMED has improved scientific understanding of long-term trends in the upper atmosphere. The SABER instrument has collected a continuous record of water vapor and carbon dioxide levels in the stratosphere and mesosphere.
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SABER has also monitored carbon dioxide levels in the upper atmosphere. The instrument found that carbon dioxide levels in the upper atmosphere are increasing: at an altitude of 110 kilometres (68 mi),
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levels were rising at an average rate of 12% per decade. This rate is faster than what has been predicted by climate models, and suggests that there is more vertical mixing of CO
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SABER is able to collect 1,500 water vapor measurements per day, a vast improvement from previous satellites and ground-based observations. SABER had a flaw in its
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satellite. As neither TIMED nor Kosmos 2221 can be maneuvered, the conjunction was unavoidable. LeoLabs, a satellite tracking company, had estimated a
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and uploading a software patch to fix the sign error. In a separate incident, another software update fixed a problem caused by faulty testing of the
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Yue, Jia; Russell III, James; Jian, Yongxiao; Rezac, Ladislav; Garcia, Rolando; López-Puertas, Manuel; Mlynczak, Martin G. (16 September 2015).
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Rong, Pingping; Russell III, James M.; Marshall, Benjamin T.; Gordley, Larry L.; Mlynczak, Martin G.; Walker, Kaley A. (31 July 2019).
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are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).
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Yue, Jia; Russell III, James; Gan, Quan; Wang, Tao; Rong, Pingping; Garcia, Rolando; Mlynczak, Martin (9 November 2019).
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Launches are separated by dots ( • ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ).
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probability of as high as 8% prior to the encounter. A collision between the two satellites, both traveling at
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speeds relative to each other, was projected to generate between 2,500 and 7,500 fragments of
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At approximately 06:30 UTC on 28 February 2024, TIMED passed within 10 meters of the defunct
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The data collected by the satellite's instruments are made freely available to the public.
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Space Systems Failures: Disasters and Rescues of Satellites, Rockets, and Space Probes
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Solar EUV Experiment (SEE) page at the Laboratory for Atmospheric and Space Physics
1245:"Increasing Carbon Dioxide Concentration in the Upper Atmosphere Observed by SABER" 660: 632: 532:, designed to globally measure the wind and temperature profiles of the MLT region. 507: 489: 423: 399: 353: 1916: 1912: 1908: 1847: 1798: 1729: 1584: 1562: 1218: 1082: 839: 672: 648: 523: 481: 435: 410: 388: 639:. After these corrections, the attitude control system functioned as intended. 1419: 946: 668: 636: 583: 511: 493: 431: 427: 419: 365: 357: 349: 54: 1841: 1454: 904: 455: 116: 1810: 1787: 1625: 1313: 1269: 1244: 439: 392: 211: 473:
The spacecraft payload consists of the following four main instruments:
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TIMED (Thermosphere • Ionosphere • Mesosphere • Energetics and Dynamics)
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Sounding of the Atmosphere using Broadband Emission Radiometry (SABER)
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This article incorporates text from this source, which is in the
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This article incorporates text from this source, which is in the
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Thermosphere • Ionosphere • Mesosphere • Energetics and Dynamics
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and humans have on the least explored and understood region of
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Journal of Atmospheric and Solar-Terrestrial Physics
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Johns Hopkins University Applied Physics Laboratory
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The project is sponsored and managed by 90: 20: 1268: 1061: 1059: 565:11.73 meters wide (solar arrays deployed) 775:National Center for Atmospheric Research 2050:Spacecraft launched by Delta II rockets 976: 562:1.61 meters wide (launch configuration) 622:TIMED experienced minor problems with 360:(MLTI). The mission was launched from 1070:. Berlin: Springer. pp. 214–215. 582:Control and data handling processor: 500:to the energy balance in that region. 492:, and to determine the importance of 7: 921:Astrophysical Institute of Andalucia 576:Data downlink: 4 megabits per second 530:TIMED Doppler Interferometer (TIDI) 965:Upper Atmosphere Research Satellite 514:designed to measure the solar soft 1042:"TIMED SDS Data Product Downloads" 683:in a broader speech on NASA's new 14: 611:Ground operations: US$ 42 million 498:solar extreme ultraviolet sources 1022: 997: 949: 478:Global Ultraviolet Imager (GUVI) 311:Solar Terrestrial Probes program 27: 1348:TIMED mission page at NASA GSFC 878:G&A Technical Software Inc. 2035:University of Colorado Boulder 406:Atmospheric region under study 102: 1: 1343:TIMED mission page at JHU/APL 1081:Foust, Jeff (22 April 2024). 985:"Trajectory: TIMED 2001-055B" 796:Air Force Research Laboratory 1294:Geophysical Research Letters 1249:Geophysical Research Letters 872:NASA Langley Research Center 827:Southwest Research Institute 608:Spacecraft: US$ 195 million 573:Power consumption: 406 watts 414:TIMED Mission diagram (NASA) 368:on 7 December 2001 aboard a 2045:Spacecraft launched in 2001 1219:10.1016/j.jastp.2019.105099 1153:Yue 2019, pp. 13456, 13458. 854:Computational Physics, Inc. 809:Stewart Radiance Laboratory 159:660 kg (1,460 lb) 2066: 381:Applied Physics Laboratory 200:7 December 2001, 15:07:35 150:Applied Physics Laboratory 16:American Weather Satellite 2000: 907:, England, United Kingdom 897:, England, United Kingdom 863:Naval Research Laboratory 757:Jet Propulsion Laboratory 716:than previously thought. 362:Vandenberg Air Force Base 307: 303: 279:625 km (388 mi) 246: 242: 187: 183: 136: 132: 46: 26: 901:British Antarctic Survey 748:University of California 665:2009 satellite collision 626:when, after launch, the 594:Knowledge - Within 0.03° 395:launch vehicle with the 385:Johns Hopkins University 33:TIMED in low Earth orbit 643:Kosmos 2221 conjunction 818:University of Michigan 813:Bedford, Massachusetts 800:Hanscom Air Force Base 766:University of Colorado 591:Control - Within 0.50° 469:Scientific instruments 415: 63:Space weather research 911:CREES-York University 836:Utah State University 633:magnetic field sensor 413: 256:Reference system 141:Spacecraft properties 1396:Orbital launches in 1314:10.1029/2019GL084973 1270:10.1002/2015GL064696 761:Pasadena, California 752:Berkeley, California 739:University of Alaska 685:space sustainability 618:Satellite operations 605:Total mission cost: 1306:2019GeoRL..4613452Y 1261:2015GeoRL..42.7194Y 1211:2019JASTP.19405099R 1180:Yue 2019, p. 13459. 1144:Yue 2019, p. 13456. 1126:Yue 2019, p. 13458. 1108:Yue 2019, p. 13452. 987:. NASA. 14 May 2020 880:, Hampton, Virginia 874:, Hampton, Virginia 822:Ann Arbor, Michigan 783:, Boulder, Colorado 777:, Boulder, Colorado 653:satellite collision 553:Mass: 660 kilograms 520:extreme-ultraviolet 496:energy sources and 444:atmospheric science 59:Atmospheric science 23: 1171:Yue 2015, p. 7198. 1162:Yue 2015, p. 7197. 1135:Rong 2019, p. 3-4. 1117:Yue 2015, p. 7195. 957:Spaceflight portal 931:Rostock University 845:Hampton University 831:San Antonio, Texas 691:Scientific results 579:Memory: 5 gigabits 490:lower thermosphere 463:telecommunications 416: 354:Lower Thermosphere 346:Earth's atmosphere 251:Orbital parameters 2012: 2011: 1540:2001 Mars Odyssey 917:, Ontario, Canada 858:Fairfax, Virginia 849:Hampton, Virginia 770:Boulder, Colorado 743:Fairbanks, Alaska 452:atmospheric tides 326: 325: 169:11.73 meters wide 126:Planned: 2 years 2057: 1673:Molniya-3K No.11 1401: 1400: 1399: 1382: 1375: 1368: 1359: 1332: 1330: 1328: 1282: 1272: 1237: 1235: 1233: 1181: 1178: 1172: 1169: 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Retrieved 1297: 1293: 1252: 1248: 1232:15 September 1230:. Retrieved 1202: 1198: 1176: 1167: 1158: 1149: 1140: 1131: 1122: 1113: 1104: 1092:. Retrieved 1086: 1076: 1067: 1048:15 September 1046:. Retrieved 1036: 1016:Fox, Karen. 1011: 989:. Retrieved 979: 722: 718: 706: 698: 694: 661:space debris 646: 621: 556:Dimensions: 549: 541: 535: 529: 508:spectrometer 503: 477: 472: 424:Thermosphere 417: 400:oceanography 329: 327: 309: 299:97.3 minutes 216:(Delta D289) 146:Manufacturer 117:TIMED at APL 51:Mission type 18: 1980:Kosmos 2386 1976:Kosmos 2385 1972:Kosmos 2384 1967:Kosmos 2383 1932:Starshine 2 1917:Kosmos 2382 1913:Kosmos 2381 1909:Kosmos 2380 1848:Soyuz TM-33 1842:QuickBird-2 1799:Starshine 3 1753:September , 1730:Kosmos 2379 1616:Kosmos 2378 1600:Kosmos 2377 1563:Soyuz TM-32 991:23 November 967:, 1991-2005 840:Logan, Utah 673:Kosmos 2251 649:Kosmos 2221 637:Sun sensors 597:Processor: 512:photometers 482:temperature 436:meteorology 389:solar cycle 285:Inclination 221:Launch site 197:Launch date 156:Launch mass 2040:Ionosphere 2019:Categories 1902:December , 1893:DirecTV-4S 1876:November , 1510:Eurobird 1 1444:February , 1425:Türksat 2A 1420:Shenzhou 2 1205:: 105099. 972:References 669:Iridium 33 588:Attitude: 584:Mongoose-V 432:geophysics 428:Ionosphere 420:Mesosphere 366:California 358:Ionosphere 350:Mesosphere 334:energetics 225:Vandenberg 164:Dimensions 55:Ionosphere 1962:Reflektor 1820:October , 1780:QuickTOMS 1776:OrbView-4 1719:Simplesat 1683:Koronas-F 1455:Skynet 4F 1413:January , 1322:210607942 1279:102423229 1227:201260453 937:, Germany 905:Cambridge 486:densities 456:satellite 402:mission. 179:406 watts 86:2001-055B 80:COSPAR ID 1811:SAPPHIRE 1692:August , 1626:Astra 2C 1451:Sicral 1 1094:26 April 943:See also 667:between 440:aeronomy 422:, Lower 393:Delta II 338:dynamics 276:Altitude 212:Delta II 69:Operator 1950:Kompass 1937:Jason-1 1923:STS-108 1837:USA-162 1827:USA-161 1803:PICOSat 1788:Odyssey 1760:USA-160 1710:STS-105 1704:Genesis 1699:USA-159 1678:GOES 12 1668:BSAT-2b 1664:Artemis 1653:STS-104 1590:USA-158 1551:STS-100 1528:April , 1514:BSAT-2a 1499:STS-102 1491:March , 1482:USA-157 1466:Destiny 1435:USA-156 1302:Bibcode 1257:Bibcode 1207:Bibcode 1020:. NASA. 935:Rostock 927:, Spain 925:Granada 923:(IAA), 915:Toronto 599:RTX2010 494:auroral 488:in the 397:Jason-1 340:of the 214:7920-10 113:Website 101:SATCAT 1954:Badr-B 1645:July , 1631:ICO F2 1609:June , 1585:PAS-10 1545:GSAT-1 1461:STS-98 1405:2002 → 1390:← 2000 1320:  1277:  1225:  516:X-rays 442:, and 348:– the 318:Hinode 295:Period 266:Regime 229:SLC-2W 208:Rocket 1941:TIMED 1858:PROBA 1807:PCSat 1735:VEP-2 1658:Quest 1573:May , 1318:S2CID 1275:S2CID 1223:S2CID 460:radio 446:, as 289:74.1° 176:Power 108:26998 39:Names 22:TIMED 1862:BIRD 1769:Pirs 1580:XM-1 1519:XM-2 1472:Odin 1398:2001 1329:2020 1234:2020 1096:2024 1050:2020 993:2020 895:Kent 671:and 522:and 506:, a 458:and 426:and 418:The 377:NASA 352:and 336:and 328:The 73:NASA 1854:TES 1784:SBD 1739:LRE 1636:MAP 1310:doi 1265:doi 1215:doi 1203:194 679:in 383:at 364:in 342:Sun 202:UTC 103:no. 2021:: 1990:, 1986:, 1982:, 1978:, 1974:, 1960:, 1956:, 1952:, 1948:, 1939:, 1930:, 1915:, 1911:, 1860:, 1856:, 1809:, 1805:, 1801:, 1786:, 1782:, 1778:, 1737:, 1717:, 1666:, 1512:, 1453:, 1316:. 1308:. 1298:46 1296:. 1292:. 1273:. 1263:. 1253:42 1251:. 1247:. 1221:. 1213:. 1201:. 1197:. 1085:. 1058:^ 933:, 913:, 903:, 893:, 865:, 856:, 847:, 838:, 829:, 820:, 811:, 802:, 798:, 789:, 768:, 759:, 750:, 741:, 708:CO 518:, 465:. 438:, 434:, 356:/ 227:, 1926:( 1889:) 1885:( 1771:) 1767:( 1721:) 1713:( 1660:) 1656:( 1558:) 1554:( 1506:) 1502:( 1468:) 1464:( 1381:e 1374:t 1367:v 1331:. 1312:: 1304:: 1281:. 1267:: 1259:: 1236:. 1217:: 1209:: 1098:. 1052:. 1031:. 1006:. 995:. 714:2 710:2

Index


Ionosphere
Atmospheric science
Space weather research
NASA
COSPAR ID
2001-055B
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SATCAT no.
TIMED at APL
Applied Physics Laboratory
UTC
Delta II
Vandenberg
SLC-2W
Geocentric orbit
Low Earth orbit
Inclination
Period
Solar Terrestrial Probes program
Hinode
energetics
dynamics
Sun
Earth's atmosphere
Mesosphere
Lower Thermosphere
Ionosphere
Vandenberg Air Force Base
California

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