Спутник ДЗЗ. ACRIMSat. [Редактировать]

Спутник ACRIMSAT (Active Cavity Radiometer Irradiance Monitor satellite), выведенный в космос 21 декабря 1999 года, оснащен комплексом аппаратуры Acrim III. Это третье поколение аппаратуры NASA для измерения солнечной радиации, создаваемой в течении 25 лет в Лаборатории Реактивного движения NASA. Полученные данные помогут ученым изучить влияние солнечной энергии на нагрев земной поверхности, перемещение воздушных потоков и океанских течений. На основе этого исследователи будут создавать глобальные модели климата, и изучать физику Солнца. В ходе экспериментов было обнаружено значительное снижение уровня солнечного излучения в момент прохода Венеры между Землей и Солнцем в июне 2004. Уменьшение было эквивалентно всей энергии, используемой людьми в 2003 год.

Дополнительные наименования

#НаименованияПоиск в новостяхПоиск в документах
1Active Cavity Radiometer Irradiance Monitor SatelliteНайтиНайти
2Active Cavity Radiometer Irradiance Monitor (AcrimSat)НайтиНайти

Дополнительная классификация

#Наименования
1Страна оператор(владелец) - США
2Тип оператора(владельца) - государственный
3Тип орбиты - НОО
4Страна производитель - США
5Все спутники ДЗЗ

Технические характеристики

#ХарактеристикаЗначение
1Масса (сухая), кг.115
2Масса, кг.288
3Полезная нагрузка 1xACRIM-III
4Мощность, Вт80.0

Характеристики орбиты

#ХарактеристикаЗначение
1Наклонение, град97.8
2Апогей, км715.0
3Перигей, км673.5
4Период, минут98.5
5САС, год7
6Длинный диаметр эллипса, км7065

Экономические характеристики

#ХарактеристикаДата измеренияЗначение
1Стоимость (аппарат), млн. долл.30
2Производитель Orbital ATK
3Операторы Космическое агентство США
4Оператор NASA Jet Propulsion Laboratory
5Оператор Goddard Space Flight Center

Найдено 143 документов по запросу «ACRIMSat». [Перейти к поиску]


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The Astrophysical Journal, 641:565–571, 2006 April 10 # 2006. The American Astronomical Society. All rights reserved. Printed in U.S.A. THE EFFECT OF THE TRANSIT OF VENUS ON ACRIM’S TOTAL SOLAR IRRADIANCE MEASUREMENTS: IMPLICATIONS FOR TRANSIT STUDIES OF EXTRASOLAR PLANETS G. Schneider Steward Observatory, The University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721; gschneider@as.arizona.edu J. M. Pasachoff Williams College, Williamstown, MA 01267; jay.m.pasachoff@williams.edu and Richard C. Willson Columbia University, New York, NY 10027; rwillson@acrim.com Received 2005 November 15; accepted 2005 December 8 ABSTRACT We have used the 2004 June 8 transit of Venus (ToV ) as a surrogate to test observing methods, strategies, and techniques that are being contemplated for future space missions to detect and characterize extrasolar terrestrial planets (ETPs) as they transit their host stars, notably NASA’s Kepler mission, planned for 2008. As an analog to ‘‘Kepler-like’’ photometric transit observations, we obtained (spatially unresolved ) radiometric observations with the ACRIM 3 instrument on ACRIMSAT at a sampling cadence of 131 s to follow the effect of the ToV on the total solar irradiance ( TSI ). Contemporaneous high-resolution broadband imagery with NASA’s TRACE spacecraft provided, directly, measures of the stellar (solar) astrophysical noise that can intrinsically limit such transit observations. During the Venus transit, which lasted $5.5 hr, the planet’s angular diameter was approximately 1/32 the solar diameter, thus covering $0.1% of the stellar surface. With our ACRIM 3 data, we measure temporal changes in TSI with a 1 per sample (unbinned ) uncertainty of approximately 100 mW mÀ2 (0.007%). A diminution in TSI of $1.4 W mÀ2 ($0.1%, closely corresponding to the geometrically occulted area of the photosphere) was measured at mid-transit compared with a mean pre-/post-transit TSI of $1365.9 W mÀ2. The radiometric light curve is complex because of the parallactic motion of Venus induced by ACRIMSAT’s near-polar orbit, but exhibits the characteristic signature of photospheric limb darkening. These observations serve as a surrogate for future photometric observations of ETPs, such as Kepler will deliver. Detailed analysis of the ToV, a rare event within our own solar system, with time-resolved radiometry augmented with high-resolution imagery, provides a useful analog for investigating the detectability and characterization of ETPs from observations that are anticipated in the near future. Subject headingg s: planets and satellites: individual ( Venus) — techniques: photometric 1. INTRODUCTION 1998) missions are under way and development and, one hopes, will rise to this challenge. Indirect detection of Jovian-mass extrasolar planets has been demonstrated by the transit method (e.g., HD 209458b, Charbonneau et al. 2000; TrES-1, Alonso et al. 2004). Fledgling steps have been taken toward exoplanet atmospheric identification and characterization by transit spectroscopy as well (e.g., HD 209458b with the detection of atmospheric sodium; Charbonneau et al. 2002) and conceptually may be extended, with a much higher degree of observational complexity, to ETPs yet to be found. The recent predicted transit of a known terrestrial planet in the habitable zone of a very nearby solar‘‘like’’ star, i.e., the transit of Venus across the Sun on 2004 June 8 ( Pasachoff et al. 2005), provided a unique and timely opportunity to validate the concepts, instrumentation, observational processes, and procedures that will be developed over the next decade to extend our vision of terrestrial planets to other solar systems. Seizing on that rare opportunity, we obtained spacebased solar irradiance (total irradiance power) measurements with the Active Cavity Radiometer Irradiance Monitor 2 (ACRIM ) 3 instrument on ACRIMSAT to evaluate the radiometric (closely Since the seminal detection and identification of the companion to 51 Peg as a giant planet orbiting very close to its host star (Mayor & Queloz 1995), the past decade has seen an explosion of detections of extrasolar ‘‘hot Jupiter’’–type planets around solar-like stars.1 Direct detection of young (



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The Astrophysical Journal, 641:000–000, 2006 April 10 # 2006. The American Astronomical Society. All rights reserved. Printed in U.S.A. THE EFFECT OF THE TRANSIT OF VENUS ON ACRIM’S TOTAL SOLAR IRRADIANCE MEASUREMENTS: IMPLICATIONS FOR TRANSIT STUDIES OF EXTRASOLAR PLANETS G. Schneider Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721; gschneider@as.arizona.edu J. M. Pasachoff Williams College, Williamstown, MA 01267; jay.m.pasachoff@williams.edu and Richard C. Willson Columbia University, New York, NY 10027; rwillson@acrim.com Received 2005 November 15; accepted 2005 December 8 Q1 ABSTRACT We have used the 2004 June 8 transit of Venus (ToV ) as a surrogate to test observing methods, strategies, and techniques that are being contemplated for future space missions to detect and characterize extrasolar terrestrial planets (ETPs) as they transit their host stars, notably NASA’s Kepler mission, planned for 2008. As an analog to ‘‘Kepler-like’’ photometric transit observations, we obtained (spatially unresolved ) radiometric observations with the ACRIM 3 instrument on board ACRIMSAT at a sampling cadence of 131 s to follow the effect of the ToV on the total solar irradiance ( TSI ). Contemporaneous high-resolution broadband imagery with NASA’s TRACE spacecraft provided, directly, measures of the stellar (solar) astrophysical noise that can intrinsically limit such transit observations. During the Venus transit, which lasted $5.5 hr, the planet’s angular diameter was approximately 1/32 the solar diameter, thus covering $0.1% of the stellar surface. With our ACRIM 3 data, we measure temporal changes in TSI with a 1 per sample (unbinned ) uncertainty of approximately 100 mW mÀ2 (0.007%). A diminution in TSI of $1.4 W mÀ2 ($0.1%, closely corresponding to the geometrically occulted area of the photosphere) was measured at mid-transit compared with a mean pre-/post-transit TSI of $1365.9 W mÀ2. The radiometric light curve is complex because of the parallactic motion of Venus induced by ACRIMSAT’s near-polar orbit, but exhibits the characteristic signature of photospheric limb darkening. These observations serve as a surrogate for future photometric observations of ETPs, such as Kepler will deliver. Detailed analysis of the ToV, a rare event within our own solar system, with time-resolved radiometry augmented with high-resolution imagery, provides a useful analog for investigating the detectability and characterization of ETPs from observations that are anticipated in the near future. Subject headingg s: planets and satellites: individual ( Venus) — techniques: photometric 1. INTRODUCTION 1998) missions are under way and development and, one hopes, will rise to this challenge. Indirect detection of Jovian-mass extrasolar planets has been demonstrated by the transit method (e.g., HD 209458b, Charbonneau et al. 2000; TrES-1, Alonso et al. 2004). Fledgling steps have been taken toward exoplanet atmospheric identification and characterization by transit spectroscopy as well (e.g., HD 209458b with the detection of atmospheric sodium; Charbonneau et al. 2002) and conceptually may be extended, with a much higher degree of observational complexity, to ETPs yet to be found. The recent predicted transit of a known terrestrial planet in the habitable zone of a very nearby solar‘‘like’’ star, i.e., the transit of Venus across the Sun on 2004 June 8 ( Pasachoff et al. 2005), provided a unique and timely opportunity to validate the concepts, instrumentation, observational processes, and procedures that will be developed over the next decade to extend our vision of terrestrial planets to other solar systems. Seizing on that rare opportunity, we obtained spacebased solar irradiance (total irradiance power) measurements with the Active Cavity Radiometer Irradiance Monitor 2 (ACRIM ) 3 instrument on board ACRIMSAT to evaluate the radiometric Since the seminal detection and identification of the companion to 51 Peg as a giant planet orbiting very close to its host star (Mayor & Queloz 1995), the past decade has seen an explosion of detections of extrasolar ‘‘hot Jupiter’’–type planets around solar-like stars.1 Direct detection of young (



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... Radiometer (ACRIM) 3 instrument on NASA’s ACRIMSAT to evaluate the radiometric (broad... of Venus Expedition) THE ACRIMSAT ORBIT & DATA SAMPLING ACRIMSAT is in a Sun... cannot observe the Sun continuously. ACRIMSAT’s line-of-sight to the... transit circumstances, as seen by ACRIMSAT, were determined for time intervals... observations made with ACRIM 3 on ACRIMSAT on 8 June 2004 at a cadence... the Sun was visible to ACRIMSAT is overplotted on the ACRIM..., “solar constant”) From ACRIM 3 on ACRIMSAT Daily average of 660 samples... solar disk as viewed by ACRIMSAT, occults approximately 0.1% of the total... IV) was not visible from ACRIMSAT. The TSI observations from SORCE... of) Venus, as seen from ACRIMSAT, is depicted in the figure...) resulted from the near-polar ACRIMSAT orbit. As Venus is of... as the Earth, and as ACRIMSAT is in a low Earth orbit... intervals. This resulted from the ACRIMSAT orbit plane not being in... was visible to ACRIMSAT. The Sun, as seen from ACRIMSAT, was occulted... intervals. VENUS TRANSIT TIMES FROM ACRIMSAT (LIGHT-CURVE SOLUTION) Contact Contact... the Sun was visible to ACRIMSAT (overlaid in blue on the... transit light curve obtained by ACRIMSAT (and a similar one obtained by....arizona.edu:8000/ECLIPSE_WEB/TRANSIT_04/ACRIMSAT/ACRIMSAT_TOV.html for links to...



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... for ACRIMSAT - Earth distance 4.2.4.3 Determination of ACRIMSAT - Sun distance 4.2.4.4 Relativistic effect of ACRIMSAT.../ACRIM Solar Irradiance Monitoring Satellite (ACRIMSAT) small satellite will be the... will be deployed on the ACRIMSAT, a dedicated small satellite. A ground station... Propulsion Laboratory (JPL) will control ACRIMSAT and downlink the data. Level... III Level 2 Daily Means Data ACRIMSat Ephemeris Data Daily Transfer (MBytes... health. These, along with the ACRIMSAT time tags, geocentric coordinates and... by the ACRIM instrument on ACRIMSAT. The basic time resolution will.... The ephemerides for both the ACRIMSAT and Earth orbits will be... earth-sun distance variation (~ +/- 3 %), the ACRIMSAT orbital contribution to the sun... configuring and checking out the ACRIMSAT satellite. During this period JPL... the control and operation of ACRIMSAT. During the initial 45-day... be available by June 2000. ACRIMSAT/ACRIM III Post-Launch Schedule... days On-orbit configuration Learn ACRIMSAT operations Data processing validation Data... 2/5/00– 3/15/00 Advisory function ACRIMSAT operations Initial ACRIM III calibrations.../005/15/00 Advisory function ACRIMSAT operations ACRIM III Calibrations Generation... LaRC DAAC 6/1/00 Advisory function ACRIMSAT operations Routine transfer of calibrated... LaRC DAAC 6/1/00 à Advisory function ACRIMSAT operations Routine degradation calibrations Routine... reference. The ephemerides for the ACRIMSAT orbit around the Earth and... distance variation (+/- 3.4 % per yr.), the ACRIMSAT orbital contribution to the sun... Unit. 4.2.4.2 Correction for ACRIMSAT - Earth distance The ACRIMSAT orbital ephemerides will be... 4.2.4.3 Determination of ACRIMSAT - Sun distance The component of the ACRIMSAT - Earth distance... is computed to yield the ACRIMSAT - Sun distance at the time...: Eq. 4.1 H0 = Hi Rss2 The ACRIMSAT-sun distance has two components... and the geocentric position of ACRIMSAT in its orbit. The Earth.... The orbital motion of ACRIMSAT modulates the ACRIMSAT-sun distance computed from... ephemerides. The coordinates for the ACRIMSAT ephemerides are based on a geocentric... rotation. The orbital ephemerides for ACRIMSAT will be used to derive... transformation of the ACRIMSAT ephemerides to the ACRIMSAT-Earth distance is accomplished... ACRIMSAT-Earth orbital position or velocity ephemerides day of year geocentric ACRIMSAT... 26’ 22” 4.2.4.4 Relativistic effect of ACRIMSAT-Sun relative velocity Page 66... we assume the x axis of ACRIMSAT ‘s coordinate system is aligned with... (1 - β ) Eq. 4.5 Where: β v c = = = v/c relative velocity of ACRIMSAT and sun speed of light... ACRIMSAT-sun relative velocity. The first is the orbital motion of ACRIMSAT... such parametric analysis. When the ACRIMSAT design and orbit are defined... well at the time of ACRIMSAT/ACRIM III launch. There should... configuring and checking out the ACRIMSAT satellite. During this period JPL... the control and operation of ACRIMSAT. During the initial 45-day... by June 2000. Page 76 ACRIMSAT/ACRIM III Post-Launch Schedule... days On-orbit configuration Learn ACRIMSAT operations Data processing validation Data... 2/5/00–3/15/00 Advisory function ACRIMSAT operations Initial ACRIM III calibrations.../00-5/15/00 Advisory function ACRIMSAT operations ACRIM III Calibrations Generation... LaRC DAAC 6/1/00 Advisory function ACRIMSAT operations Routine transfer of calibrated... LaRC DAAC 6/1/00 à Advisory function ACRIMSAT operations Routine degradation calibrations Routine...



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... Cavity Radiometer Irradiance Monitor Satellite (ACRIMSAT) and proceeding alphabetically through the... Coordination NASA’s Earth Observing Missions ACRIMSAT ADEOS II Aqua Aquarius Aura... Missions Section Alan Ward (SSAI) ACRIMSAT Richard Willson (Col U) ADEOS II... Terra, Aqua, and TRMM. 1999 ACRIMSAT Monitor total solar irradiance. 2000... Cavity Radiometer Irradiance Monitor Satellite (ACRIMSAT). March 31, 2004—Selection of... 1999 1999 Landsat 7 QuikSCAT Terra ACRIMSAT ETM+ SeaWinds ASTER (J), CERES (2), MISR... 18. CALIPSO 0.003 Mbps 19. ACRIMSAT 0.001 Mbps 20. EP/TOMS... Reference Handbook ACRIMSAT Active Cavity Radiometer Irradiance Monitor Satellite Key ACRIMSAT Facts... Downlink: Table Mountain Observatory (JPL) ACRIMSAT URLs Science Team: www.acrim...: 5-year minimum lifetime Partners Summary ACRIMSAT was launched on December 20... the solar-pointing software on ACRIMSAT. The purpose of ACRIM3 is... Research Satellite (UARS) in 1991. ACRIMSAT/ACRIM3 completed its five-year..., data archiving Orbital Sciences Corporation: ACRIMSAT satellite, Taurus launch vehicle Langley... NASA’s Earth Science Program section) • ACRIMSAT Principal Investigator: Richard Willson, Columbia... Related Applications • ACRIMSAT Program Scientist: Don Anderson, NASA Headquarters • ACRIMSAT Program Executive... Management • Public Health [ Missions: ACRIMSAT ] 65 ACRIMSAT Science Goals • Extend the TSI... of the SORCE/TIM experiment. ACRIMSAT Mission Background Sustained changes in... and most urgent activity. The ACRIMSAT/ACRIM3 experiment is designed to... System (EOS) program. 66 [ Missions: ACRIMSAT ] There is a contiguous satellite TSI...), SMM/ACRIM1, UARS/ACRIM2, and ACRIMSAT/ACRIM3 experiments to a common scale... and indications from analyses of ACRIMSAT/ACRIM3 satellite, instrument, and orbit... 1980 and 1991, respectively. The ACRIMSAT spacecraft was launched on December... Earth Science Reference Handbook [ Missions: ACRIMSAT ] 67 began April 5, 2000, and.... Res. Letters, 30, 1199–1202. ACRIMSAT References Willson, R. C., S. Gulkis, M Janssen, H. S. Hudson..., 1963–1965. Willson, R. C., 2001: The ACRIMSAT/ACRIM3 experiment—extending the precision... Earth Observer, 13, 14–17. ACRIMSAT Data Products For more information... 5, 2000 Radiometric Products ACRIMSAT Data Products 68 [ Missions: ACRIMSAT ] Earth Science Reference...: EOS Data Products Handbook, Volume 2: ACRIMSAT, Aqua, Jason1, Landsat 7, Meteor-3M...: 301-614-6049 Richard Willson ACRIMSAT Columbia University E-mail: acrim@acrim... Physics Laboratory (Johns Hopkins University) ACRIMSAT Active Cavity Radiometer Irradiance Monitor...



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... (ACRIMSat) - ACRIMSat monitors total solar irradiance. The science focus areas served by ACRIMSat... water and energy cycles. Because ACRIMSAT has continued to operate beyond... Cavity Radiometer Irradiance Monitor Satellite (ACRIMSat) Quick Scatterometer (QuikSCAT) ES-32..., and ICESat-2. JPL manages OSTM, ACRIMSat, SMAP, QuikSCAT, DESDynI, CLARREO, and... launch vehicle (an H-II F6). ACRIMSat JPL JPL None. QuikSCAT JPL...



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ACRIMSAT EOSDIS http://spsosun.gsfc.nasa.... and Space Administration Volume 2 VCL ACRIMSAT • Aqua • Jason-1 • Landsat 7 • Meteor 3M... EOS Data Products Handbook Volume 2 ACRIMSAT • ACRIM III Aqua • AIRS • AMSR... Cavity Radiometer Irradiance Monitor Satellite (ACRIMSAT), Aqua, Jason-1, Landsat 7, Meteor 3M... missions and their sensors are ACRIMSAT (Active Cavity Irradiance Monitor, ACRIM... Products (Organized by Mission Name) ACRIMSAT • ACRIM III Aqua • AIRS • AMSR... # Radiance/ Reflectance and Irradiance Products ACRIMSAT Aqua Chapter Data Products Handbook...) Data Products Handbook - Volume 2 9 Introduction ACRIMSAT • ACRIM III Aqua • AIRS • AMSR... Cavity Radiometer Irradiance Monitor Satellite (ACRIMSAT), Aqua, Jason1, Landsat 7, Meteor 3M... Descriptions and Data Processing Overviews ACRIMSAT • ACRIM III Aqua • AIRS • AMSR... Cavity Radiometer Irradiance Monitor Satellite (ACRIMSAT), Landsat 7, Meteor 3M/SAGE III...) satellites. Of the eight missions, ACRIMSAT, Landsat 7, and QuikScat were launched.... ACRIM III is on board ACRIMSAT, launched in December 1999. It... a.m., ascending node June 19, 1999 ACRIMSAT Sun-synchronous 98.13° inclination... Descriptions and Data Processing Overviews ACRIMSAT Mission ACRIM III Active Cavity... (Analytical Graphics, Inc.), based on ACRIMSAT’s NORAD two-line orbital elements... experiment has been deployed on ACRIMSAT, a dedicated small satellite. A ground station... Jet Propulsion Laboratory (JPL) controls ACRIMSAT and will be the downlink... ACRIM III Science Team SIPS. ACRIMSAT Home Pages Science: http://acrim... Overviews • ACRIMSAT / ACRIM III Data Products Handbook - Volume 2 19 ACRIMSAT Mission Key ACRIM III Facts Selected for flight on ACRIMSAT, launched... cavity radiometer type IV sensors ACRIMSAT Measures total solar irradiance JPL... 20 Data Products Handbook - Volume 2 ACRIMSAT / ACRIM III • Instrument Descriptions and... Radiance/Reflectance and Irradiance Products ACRIMSAT • ACRIM III Aqua • AIRS • AMSR... of units (SI) at the ACRIMSAT satellite. Level 1B data will... by the ACRIM instrument on ACRIMSAT. The basic time resolution will... (Analytical Graphics, Inc.) based on ACRIMSAT’s NORAD two-line orbital elements.... Radiance/Reflectance and Irradiance Products • ACRIMSAT / ACRIM III Data Products Handbook... Biogeochemical Information Ordering Management Environment ACRIMSAT ACRIM Satellite ADEOS Advanced Earth... Products Index ACRIM III (on ACRIMSAT) ACRIM III Radiometric Products 51... Data Products Handbook - Volume 2 253 ACRIMSAT EOSDIS http://spsosun.gsfc.nasa... and Space Administration Volume 2 VCL ACRIMSAT • Aqua • Jason-1 • Landsat 7 • Meteor 3M...



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EOS Data Products Handbook Volume 2 ACRIMSAT • Aqua • Jason-1 • Landsat 7 • Meteor 3M... EOS Data Products Handbook Volume 2 ACRIMSAT • ACRIM III Aqua • AIRS • AMSR... Cavity Radiometer Irradiance Monitor Satellite (ACRIMSAT), Aqua, Jason-1, Landsat 7, Meteor 3M... missions and their sensors are ACRIMSAT (Active Cavity Irradiance Monitor, ACRIM... Products (Organized by Mission Name) ACRIMSAT • ACRIM III Aqua • AIRS • AMSR... QuikTOMS • TOMS VCL • MBLA 9 Mission ACRIMSAT Instrument Data Set Proc. Level... Products Handbook - Volume 2 17 Introduction ACRIMSAT • ACRIM III Aqua • AIRS • AMSR... Cavity Radiometer Irradiance Monitor Satellite (ACRIMSAT), Aqua, Jason-1, Landsat 7, Meteor 3M... Descriptions and Data Processing Overviews ACRIMSAT • ACRIM III Aqua • AIRS • AMSR... Cavity Radiometer Irradiance Monitor Satellite (ACRIMSAT), Landsat 7, Meteor 3M/SAGE III...) satellites. Of the eight missions, ACRIMSAT, Landsat 7, and QuikScat were launched.... ACRIM III is on board ACRIMSAT, launched in December 1999. It... a.m., ascending node June 19, 1999 ACRIMSAT Sun-synchronous 98.13° inclination... Descriptions and Data Processing Overviews ACRIMSAT Mission ACRIM III Active Cavity... (Analytical Graphics, Inc.), based on ACRIMSATʼs NORAD two-line orbital elements... experiment has been deployed on ACRIMSAT, a dedicated small satellite. A ground station... Jet Propulsion Laboratory (JPL) controls ACRIMSAT and will be the downlink... ACRIM III Science Team SIPS. ACRIMSAT Home Pages Science: http://acrim... Overviews • ACRIMSAT / ACRIM III Data Products Handbook - Volume 2 19 ACRIMSAT Mission Key ACRIM III Facts Selected for flight on ACRIMSAT, launched... cavity radiometer type IV sensors ACRIMSAT Measures total solar irradiance JPL... 20 Data Products Handbook - Volume 2 ACRIMSAT / ACRIM III • Instrument Descriptions and... Descriptions and Data Processing Overviews ACRIMSAT Radiance/Reflectance and Irradiance Products... of units (SI) at the ACRIMSAT satellite. Level 1B data will... by the ACRIM instrument on ACRIMSAT. The basic time resolution will... (Analytical Graphics, Inc.) based on ACRIMSATʼs NORAD two-line orbital elements.... Radiance/Reflectance and Irradiance Products • ACRIMSAT / ACRIM III Data Products Handbook... Active Cavity Radiometer Irradiance Monitor ACRIMSAT ACRIM Satellite ADEOS Advanced Earth... Products Index ACRIM III (on ACRIMSAT) ACRIM III Radiometric Products 51....gsfc.nasa.gov/New_EOSDIS.html ACRIMSAT • ACRIM III Aqua • AIRS • AMSR...



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... harmonic components of the overlapping ACRIMSAT/ACRIM3, SOHO/VIRGO and SORCE... by three independent science teams: ACRIMSAT/ACRIM3 (Willson and Mordvinov, 2003... independent TSI records reduces in- 2 ACRIMSAT/ACRIM3, SOHO/VIRGO, SORCE/TIM... 2014 year Figure 1: Comparison of ACRIMSAT/ACRIM3 (black), SOHO/VIRGO (blue... minimum near 1361 W/m2 . The ACRIMSAT/ACRIM3, SOHO/VIRGO and SORCE... through 2013 when the difference 3 ACRIMSAT/ACRIM3, SOHO/VIRGO, SORCE/TIM... Figure 2: Percent variation comparison of ACRIMSAT/ACRIM3 (black), SOHO/VIRGO (blue... likely responsible for these differences. 4 ACRIMSAT/ACRIM3, SOHO/VIRGO, SORCE/TIM... Figure 3: Percent variation comparison of ACRIMSAT/ACRIM3 (black), SOHO/VIRGO (blue... and range during 2003-2013 5 ACRIMSAT/ACRIM3, SOHO/VIRGO, SORCE/TIM... (MEM) power spectrum comparison of ACRIMSAT/ACRIM3 (black), SOHO/VIRGO (blue... and the planetary harmonics on 6 ACRIMSAT/ACRIM3, SOHO/VIRGO, SORCE/TIM...) Figure 5: Power spectrum comparison of ACRIMSAT/ACRIM3 (black), SOHO/VIRGO (blue... rotation (~25.38 days) and 7 ACRIMSAT/ACRIM3, SOHO/VIRGO, SORCE/TIM... a 8 5-year moving standard deviation (W/m2) ACRIMSAT/ACRIM3, SOHO/VIRGO, SORCE/TIM... σ5 (t) of the high-pass filtered ACRIMSAT/ACRIM3 (black), SOHO/VIRGO (blue... centered windows of the data 9 ACRIMSAT/ACRIM3, SOHO/VIRGO, SORCE/TIM...-pass filtered component of the ACRIMSAT/ACRIM3 (black), SOHO/VIRGO (blue... window power spectrum comparison of [A] ACRIMSAT/ACRIM3; [B] SOHO/VIRGO; [C] SORCE/TIM... scales. 12 5 Discussion and Conclusions ACRIMSAT/ACRIM3, SOHO/VIRGO and SORCE... data were downloaded from here: ACRIMSAT/ACRIM3: http://acrim.com/RESULTS...-208, 1992. Willson, R. C.: Revision of ACRIMSAT/ACRIM3 TSI results based on...



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... harmonic components of the overlapping ACRIMSAT/ACRIM3 (Active Cavity Radiometer Irradiance... by three independent science teams: ACRIMSAT/ACRIM3 (Active Cavity Radiometer Irradiance... activity minimum near 1361 W m−2 . The ACRIMSAT/ACRIM3, SOHO/VIRGO and SORCE... major theoretically expected harmonics asso- ACRIMSAT/ACRIM3, SOHO/VIRGO, SORCE/TIM... 2012 2014 year 1. Comparison of ACRIMSAT/ACRIM3 (black), SOHO/VIRGO (blue... modulation of total solar irradiance ACRIMSAT/ACRIM3, SOHO/VIRGO, SORCE/TIM... Figure 2. Percent variation comparison of ACRIMSAT/ACRIM3 (black), SOHO/VIRGO (blue... period 2003.15–2003.19. ACRIMSAT/ACRIM3, SOHO/VIRGO, SORCE/TIM... Figure 3. Percent variation comparison of ACRIMSAT/ACRIM3 (black), SOHO/VIRGO (blue... solar irradiance ACRIMSAT/ACRIM3, SOHO/VIRGO, SORCE/TIM 127 ACRIMSAT/ACRIM3, SOHO.../ 0.6 Figure 5. Power spectrum comparison of ACRIMSAT/ACRIM3 (black), SOHO/VIRGO (blue... orbital periods listed in Table 1. ACRIMSAT/ACRIM3, SOHO/VIRGO, SORCE/TIM... (MEM) power spectrum comparison of ACRIMSAT/ACRIM3 (black), SOHO/VIRGO (blue... solar irradiance ACRIMSAT/ACRIM3, SOHO/VIRGO, SORCE/TIM 129 ACRIMSAT/ACRIM3, SOHO... σ5 (t) of the high- pass filtered ACRIMSAT/ACRIM3 (black), SOHO/VIRGO (blue... window power spectrum comparison of (A) ACRIMSAT/ACRIM3; (B) SOHO/VIRGO; (C) SORCE/TIM... multiple scales. 5 Discussion and conclusions ACRIMSAT/ACRIM3, SOHO/VIRGO and SORCE... downloaded from the following websites: – ACRIMSAT/ACRIM3: http://acrim.com/RESULTS...–208, 1992. Willson, R. C.: Revision of ACRIMSAT/ACRIM3 TSI results based on...