MIRIS, A Compact Infrared Space Telescope - UNOOSA UN COPUOS, 5 Feb 2015, Vienna 1 MIRIS, A Compact...
Transcript of MIRIS, A Compact Infrared Space Telescope - UNOOSA UN COPUOS, 5 Feb 2015, Vienna 1 MIRIS, A Compact...
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MIRIS, A Compact Infrared MIRIS, A Compact Infrared MIRIS, A Compact Infrared MIRIS, A Compact Infrared Space TelescopeSpace TelescopeSpace TelescopeSpace Telescope
Wonyong HanWonyong HanWonyong HanWonyong Han
Korea Astronomy & Space Science Institute (KASI)Korea Astronomy & Space Science Institute (KASI)Korea Astronomy & Space Science Institute (KASI)Korea Astronomy & Space Science Institute (KASI)
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- Korea Science & Tech Satellite (STSAT) began 1999
- FIMS : KASI developed FIMS*, Main Payload of STSAT-1,
in collaboration with KAIST & UC Berkeley
- FIMS was (STSAT-1, Main Payload) Launched in 2003
- FIMS Science Results were Published on ApJL, 2006
(*FIMS is also known as SPEAR)
- STSAT-3 Program started in 2008, Launched 2013
- KASI Proposal, MIRIS was Selected as Main Payload
- MIRIS is compact wide-field IR Space Telescope
[ Multi-purpose Infra-Red Imaging System ]
BackgroundBackgroundBackgroundBackground
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STSAT1– FIMS (Far-UV IMaging Spectrograph)
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FIMS : Main ScienceSupernova Explosion
Models for Hot Gas
To Study Distribution, Properties of Hot Gas, ISM in Galaxy
?What’s the natureof the Hot Gas inour Galaxy ?
Galaxy
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FIMS/STSAT-1Launch : 27 Sep 2003
Russia, Plesetsk
By Cosmos Rocket
Successfully Launched
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FIMS Heritage
• ApJL FIMS Special Issue, 2006, Vol 644- First results from the FIMS Mission
- Since 2006, more than 50 papers were published including mainly ApJ papers
by FIMS observation
Total diffuse intensity map of the sky for the SPEAR/FIMS L-band (1360-1730 A) observations. Evident features include the Galactic plane, the Sco-Cen association, and the LMC.
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MIRIS
MMMMultiultiultiulti----purpose purpose purpose purpose IIIInfranfranfranfra----RRRRed ed ed ed IIIImaging maging maging maging SSSSystemystemystemystem
The Main Payload of The Main Payload of The Main Payload of The Main Payload of STSATSTSATSTSATSTSAT----3333
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MIRIS Project Summary
• Objectives
– Space observation camera (SOC)
• Pa-α emission line Galactic plane survey
• Extragalactic Cosmic IR Background (CIB) observation
– Earth observation camera (EOC)
• Wide angle NIR imaging of Korean peninsula
• Developing space IR technologies
• Spacecraft : STSAT-3 (SaTReC, KAIST Develop)• Duration : 2008. 05 ~ 2013. 11 (6 years)
• Participants : KASI, SaTReC, KARI, KBSI, SNU, ISAS/JAXAGreen Optics, Genesia
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MIRIS : Science Mission (1/3)• Galactic Plane Survey (1/2)Galactic Plane Survey (1/2)Galactic Plane Survey (1/2)Galactic Plane Survey (1/2)
Origin of the Warm Ionized Medium (WIM)– Challenge to the current paradigm of the Ionization theory– Test the effect of Dust scattering for the WIM observationObservation : Paα survey – Paα (MIRIS) vs. Hα (Ground-based) : Scattering difference– Paα is better than Hα in the turbulence study of the WIM
because of the lower dust-extinction
Hαmap from a ground-based survey
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Science Mission (2/3)• Galactic Plane Survey (2/2)Galactic Plane Survey (2/2)Galactic Plane Survey (2/2)Galactic Plane Survey (2/2)
Physical Properties of Turbulence in the Galaxy– Survey the physical parameters of turbulence in the Galaxy– Derive Magnetic field strength from the structure
characteristics of turbulence
Observation : Paα survey – Paα (MIRIS) vs. Hα (Ground-based) : Extinction difference
Measurement of the turbulence structure
Turbulence model
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Paα Observation Plan
• Galactic Plane Survey
- Simple Satellite Control
• Current plan– 2 filters
– Rotated detector FoV: 3.67 deg.→ 20% increase of survey
capability
– ~50% overlap
– Width: 5.9 ~ 7 deg.
– Total survey time = 10 months
NEP
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Science Mission (3/3)
• CIB Observations:
To reveal the origin of CIB
• Expected MIRIS Sensitivity(3σ, Instrumental noise only)– I band: 18.6 AB mag.– H band: 19.1 AB mag.
• Confusion-limited observation
• Two bands: I & H bands
→ peak of CIB?
10
100
0.2 0.4 0.6 0.8 1 3 5
residual_summary
IRTS/NIRS
model by Totani et al. 2001
Totani et al. 2001
Bernstein et al. 2002
DIRBE/COBEWright and Rees 2000 Fazio et al. 2004
Madau and Pozzetti 2000
Cambrecy et al. 2001
Sur
face
brig
htne
ss (
nW/m
2 /sr
)
Wavelength ( µµµµm)
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• Filters: I & H bandsBlank (dark calibration)
• CIB dedicated phase: 1 month
• Primary targetNEP (North Ecliptic Pole)– 6.2 sq. deg. observed by AKARI – Whole area: 10ox10o
– 7 x 7 fields– 1 sec. integration x 600 frames
• Secondary targets– SEP (South Ecliptic Pole)– NGP (North Galactic Pole)– SGP (South Galactic Pole)
CIB Observational Plan
: AKARI Obs : AKARI Obs : AKARI Obs : AKARI Obs RegionRegionRegionRegion
MIRIS NEP Obs MIRIS NEP Obs MIRIS NEP Obs MIRIS NEP Obs RegionRegionRegionRegion
: MIRIS FoV: MIRIS FoV: MIRIS FoV: MIRIS FoV
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MIRIS System Design
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STSAT-3 Summary
Item Specification
Mission Orbit 595 ~ 635 km, Sun synchronous
Mission Life 2 years
Satellite Mass ~ 175 kg
S-band Ant.
X-band Ant.CSS MIRIS SC
Sun-shade
Z X
Y x
y
z
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MIRIS Specifications
MIRIS SPEC
Wavelength 0.9 ~ 2 um (Very Near Infra-red)
Aperture 80 mm
Effective Focal Length 160mm
Focal ratio f/2
Pixel FOV 51.6 arcsec
Instrument FOV 3.67o x 3.67o (Very Wide Field)
Sensor Teledyne PICNIC, 256x256
Filter Filter Wheel (6 filters)
Telescope Temp 190 ~ 200 K (Passive Cooling)
Sensor Temp 90 K (with Cryogenic Motor)
Performance MTF > 60%
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Survey Area for other Missions & MIRIS
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MIRIS System External Layout
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MIRIS System Internal Layout
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MIRIS Optics Specification
• Specifications of Space Observation Camera
– Wavelength: 0.9 ~ 2µm − Aperture: 80 mm
– Pixel FOV: 51.6 arcsec − Detector FOV: 3.67o x 3.67o
– Telescope & Sensor Temp.: 180 ~ 200K (Passive Cooling), 100K
– Filters (6 filters)
• I (1.05µm), H (1.6µm), blank
• Pa α (1.876µm), Pa α Cont1, Pa α Cont2
• Pa α Cont1, Pa α Cont2 → Double band filter
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PICNIC IR Array Specification
Parameter SpecificationDetector technology HgCdTe(PACE)Detector input circuit SFD
Readout mode Ripple(per quadrant)Pixel readout rate Up to 200kHz
Pixel format 256x256Pixel pitch 40umFill factor >90
Output ports 4 total(1 per quadrant)Clocks 6
Spectral range 0.9 ~ 2.5umQuantum Efficiency
@2.3um>75%
Read noise: multiple sample
<20
Dark current <0.2 e-/sec(@77K)Well capacity 200,000 e-
Pixel operability >99%
PICNIC sensorPICNIC sensorPICNIC sensorPICNIC sensor
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MIRIS Optics Layout
� Operation temp. : 300K => 180K
Flexure
Barrel
Spacer
RetainerLens
Flexure
G1G2
G3
G4G5
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CAD Assembly of Flight Model
- CAD Assembly for simulation reference, before practical pre-Assembly,.
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MIRIS Electronics
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Test Plan
OpticsOpticsOpticsOptics
• Lens (SO, EO)
• Barrel (SO, EO)
• Baffle (SO, EO)
MechanicsMechanicsMechanicsMechanics
• E-box
• Dewar/Filters (SO)
• Cooler box/Cooler (SO)
• Skin (SO, EO)
• MLI (SO)
• Supporters (SO)
PartPartPartPart ModuleModuleModuleModule SystemSystemSystemSystem
Electronics Electronics Electronics Electronics
• PCBs
• Harness/Connectors
• Sensors
Environmental testEnvironmental testEnvironmental testEnvironmental test
• Vibration test
• Thermal/Vac test
OpticsOpticsOpticsOptics
• SO Function test
• EO Function test
(SO)
MechanicsMechanicsMechanicsMechanics
• Filter wheel test (SO)
Image acquisition (SO)
• Radiation test
Electronics Electronics Electronics Electronics
• Image acquisition (SO)
• Image acquisition (EO)
• SCIF test
• Radiation test
SOSOSOSO
• Cooling test
• Focus test
• Noise test
EOEOEOEO
• Field test
Test EquipmentTest EquipmentTest EquipmentTest Equipment• Vacuum chamber
• Collimator
• Light source
• GSE
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Integrating sphereIntegrating sphereIntegrating sphereIntegrating sphereMonochrometerMonochrometerMonochrometerMonochrometer
Collimator & Optical TableCollimator & Optical TableCollimator & Optical TableCollimator & Optical TableThermalThermalThermalThermal----cryo vacuum chambercryo vacuum chambercryo vacuum chambercryo vacuum chamber
Test Equipment
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Vacuum Chamber
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MIRIS Flight Model Assembly
• MLI Cover– Thickness of 30 layers: 5.2mm
– Precheck
– Bake-out process
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Passive Cooling Heat Transfer Concept
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Passive Cooling Simulation
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Passive Cooling Simulation (3/3)
Temperature profile during one orbit
(1) The telescope can be cooled below the goal temperature of 200K(1) The telescope can be cooled below the goal temperature of 200K(1) The telescope can be cooled below the goal temperature of 200K(1) The telescope can be cooled below the goal temperature of 200K(2) The detector can be cooled below the goal temperature of 80K(2) The detector can be cooled below the goal temperature of 80K(2) The detector can be cooled below the goal temperature of 80K(2) The detector can be cooled below the goal temperature of 80K---- Simulation by Sumitomo Heavy Industry (SHI) Simulation by Sumitomo Heavy Industry (SHI) Simulation by Sumitomo Heavy Industry (SHI) Simulation by Sumitomo Heavy Industry (SHI)
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34UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
MIRIS Passive Cooling Test
• Test Configuration
radiator
MLI
Flat black velvet painted copper (e~0.94) : Cooling Power 6W (30K), Cryogenic Cooler
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35UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Flight Model Assembly
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36UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
MIRIS Gain Estimation
• Mean-Variance– Readout noise ~ 45e-
– 45e- < 50e-
(performance estimation)
• Gain [e-/ADU]– Mean-Variance test: 8 ~ 11
– Dark current: ~10
• Consistent!
signalReadout noise
dominant
Photon noise
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37UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
FM Thermal-Vacuum Test• SOC FM Thermal Vacuum Test & setup
Chamber Cooler1st stage 110W@77K2nd stage 6W@20K(Typical, without attachments)
Window
Heater & Tbase
Tdewar
Ttelescope
Tthermal-shield
1st stage connectionwith shroud
Aluminum Shielding box(Outside: MLI 1 layerInside: Black Anodizing )
Chamber wall (SUS 304) – Room temperature
G10 support
Al6061-T6
Al6061-T6
Al6061-T6
Tcooler
(T1st_stage )
Harnesslines
Heater & Tcontrol
Tshroud_topTcooler_rad(temp. control)
2nd stage connectionwith telescope/dewar
TE-box
Tdetector Tcold_tip
CollimatedBeam
EEEE----BoxBoxBoxBox
Thermal-insulation(G10 plate)
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38UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Integration & Test – Assembly
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39UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Launch & Early OperationLaunch & Early OperationLaunch & Early OperationLaunch & Early Operation
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40UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Launch Campaign
• Yasny Launch Base, Russia
• Dnepr Rocket
• Nov., 2013
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41UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
MIRIS First Light
• SOC Imaging: Andromeda Galaxy (2013. 12. 17)
IIII----bandbandbandband (1.05 (1.05 (1.05 (1.05 μμμμm)m)m)m) H-band (1.6 µm)
3.6°°°° 3.6°°°°
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42UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
MIRIS First Light
• SOC Imaging: Rosette Nebula (2013. 12. 23)
I-bandH-bandPaα line
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43UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Passive Cooling
• SOC Detector Temperature
• It took about 9 hours to reach ~90 K from ~220 K after the cooler is turned on.
• To reduce noise, the cooler is turned off during the observation. → ∆T ~ 3 K
• No Temp Effect
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44UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Initial Performance
• IR Imaging: North Ecliptic Pole (2014. 1. 17, I-band)Exposure 1.5 sec Exposure 2.0 sec
Exposure 3.0 sec Exposure 5.0 sec
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45UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Performance & Enhancement
• SOC Imaging: Radial Profile of Stars
Exp 1.5 sec Exp 2.0 sec
Exp 3.0 sec Exp 5.0 sec
ExposureExposureExposureExposure FWHMFWHMFWHMFWHM
1.5 s 1.19 pixels
2.0 s 0.93 pixels
3.0 s 0.97 pixels
5.0 s 0.99 pixels
→ → → → Indicate Good Indicate Good Indicate Good Indicate Good Pointing AccuracyPointing AccuracyPointing AccuracyPointing Accuracyof the Satelliteof the Satelliteof the Satelliteof the Satellite
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46UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
MIRIS : Main SciencesMIRIS : Main SciencesMIRIS : Main SciencesMIRIS : Main Sciences
• Cosmic Infrared Background RadiationCosmic Infrared Background RadiationCosmic Infrared Background RadiationCosmic Infrared Background Radiation– Measure the absolute background blightness and
fluctuation
• PaPaPaPaαααα Emission Line of the GalaxyEmission Line of the GalaxyEmission Line of the GalaxyEmission Line of the Galaxy– Study WIM (Warm Ionized Medium)WIM (Warm Ionized Medium)WIM (Warm Ionized Medium)WIM (Warm Ionized Medium)
– Compare Paαααα with Hαααα and Far-IR Data
Main Sciences
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47UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Cosmic Infrared Background
• Targets: North Ecliptic Pole (NEP)North Ecliptic Pole (NEP)North Ecliptic Pole (NEP)North Ecliptic Pole (NEP)
North Galactic Pole (NGP)North Galactic Pole (NGP)North Galactic Pole (NGP)North Galactic Pole (NGP)
South Galactic Pole (SGP)South Galactic Pole (SGP)South Galactic Pole (SGP)South Galactic Pole (SGP)
• 7×7 pointing observations with 50% overlap→ 4 times observations of ~10°×10° area
• Wavelengths: I - and H -bands
• Observe for 8 minutes for each band (2 sec, 200 Frm)
(effective exposure: 6.5 minutes due to Reset)
• Additional observations: NEP Monitoring (1 field)NEP Monitoring (1 field)NEP Monitoring (1 field)NEP Monitoring (1 field)
• Observe NEP every two days (I - and H -bands)
• Can be used to study zodiacal light and for instrument calibration
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STSAT-3
48UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Cosmic Infrared Background
• NEP Wide FieldNEP Wide FieldNEP Wide FieldNEP Wide Field Observations (2014. 3.)H-bandI-band
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STSAT-3
49UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Cosmic Infrared Background
• NEP Wide Field NEP Wide Field NEP Wide Field NEP Wide Field Observations (2014. 9.)I-band H-band
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STSAT-3
50UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Cosmic Infrared Background
• NGP Wide Field NGP Wide Field NGP Wide Field NGP Wide Field Observations (2014. 3.)
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STSAT-3
51UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Cosmic Infrared Background
• South Galactic Pole, Wide Field South Galactic Pole, Wide Field South Galactic Pole, Wide Field South Galactic Pole, Wide Field Observations (2014. 10.)
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STSAT-3
52UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Cosmic Infrared Background
• North Ecliptic Pole MonitoringNorth Ecliptic Pole MonitoringNorth Ecliptic Pole MonitoringNorth Ecliptic Pole Monitoring Observations
I-band
H-band
2014 April 16 June 17 August 16 October 16
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STSAT-3
53UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Cosmic Infrared Background
• NEP MonitoringNEP MonitoringNEP MonitoringNEP Monitoring ObservationsChange of NEP background brightness due to zodiacal lightChange of NEP background brightness due to zodiacal lightChange of NEP background brightness due to zodiacal lightChange of NEP background brightness due to zodiacal light
Oct. 21Oct. 21Oct. 21Oct. 21
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STSAT-3
54UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Cosmic Infrared Background
• Observations of Deep Sky FieldsObservations of Deep Sky FieldsObservations of Deep Sky FieldsObservations of Deep Sky Fields
Observed To be observed
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55UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Paα emission observations 1. Galactic Plane Survey1. Galactic Plane Survey1. Galactic Plane Survey1. Galactic Plane Survey�Cover 360°along Galactic plane within -3°< b < +3°.
�Total 228 fields : 106 north fields + 106 south fields + 16 extended.
�Effective exposure : ~20 minutes (3 orbits) per field per filter
�2014 Apr.-2014 Aug. : l = -80°to +100° (observed).(observed).(observed).(observed).
�2014 Nov.-2015 Apr. : l = +100°to +280° (in observation ).(in observation ).(in observation ).(in observation ).
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56UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Paα emission observations : Plan
2. Additional Pointing Observations. Additional Pointing Observations. Additional Pointing Observations. Additional Pointing Observations�Select some interesting targets in the high galactic latitude.
�2013 Dec.-2014 Feb. : total 12 fields (observed).(observed).(observed).(observed).
�2014 Apr.-2014 Aug. : Zeta Oph., Rho Oph., SMC, LMC (observed). (observed). (observed). (observed).
�2014 Nov.-2015 Mar. : BFS11-B (Star Forming Molecular Cloud), NGC1579, Mon R2.
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STSAT-3
57UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Paα emission observations : Early Results
1. Galactic Plane Survey
�Paα emission line image was made using fixed scale factor (0.55) subtraction :
PAAL - 0.55 × PAAC (NEP Obs calculated, PAAL/PAAC Filter Ratio).
�incompletely processed images : no removal of detector background, no on–orbit flat
field correction, no flux calibration.
MIRIS PAAL filter imageMIRIS PAAL filter imageMIRIS PAAL filter imageMIRIS PAAL filter image
MIRIS PAAC filter imageMIRIS PAAC filter imageMIRIS PAAC filter imageMIRIS PAAC filter image
MIRIS PaMIRIS PaMIRIS PaMIRIS Paαααα emission line emission line emission line emission line (PAAL(PAAL(PAAL(PAAL----PAAC) imagePAAC) imagePAAC) imagePAAC) image
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STSAT-3
58UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Paα emission observations : Early Results
1. Galactic Plane SurveyGalactic Plane SurveyGalactic Plane SurveyGalactic Plane Survey
�Many of detected Paα features are brighter than predicted by the Hα observations
(some of them are invisible in Hα).
�Bright Paα blobs coincide well with dense cloud regions (Star Forming Cloud).
HHHHαααα image (Finkbeiner, 2003, ApJS, Ground Obs)image (Finkbeiner, 2003, ApJS, Ground Obs)image (Finkbeiner, 2003, ApJS, Ground Obs)image (Finkbeiner, 2003, ApJS, Ground Obs)
MIRIS PaMIRIS PaMIRIS PaMIRIS Paαααα emission line (PAALemission line (PAALemission line (PAALemission line (PAAL----PAAC) image (This Paper)PAAC) image (This Paper)PAAC) image (This Paper)PAAC) image (This Paper)
FIR + IRAS, SFD E(BFIR + IRAS, SFD E(BFIR + IRAS, SFD E(BFIR + IRAS, SFD E(B----V) (Schlegel et al. 1998)V) (Schlegel et al. 1998)V) (Schlegel et al. 1998)V) (Schlegel et al. 1998)
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59UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Paα emission observations : Early Results
2. Additional Pointing Observations 2. Additional Pointing Observations 2. Additional Pointing Observations 2. Additional Pointing Observations �One sample result : LMC (7°×7° Field) : Well Known Star Forming Region
�Cover the whole LMC (Large Magellan Cloud) region with 4 field observations.
�I & H filter : 1 orbit observation per field.
�PAAL, PAAC filter : 5 orbits observations per field.
�incompletely processed images : no removal of detector background, no on–orbit flat
field correction, no flux calibration.
MIRIS I H PAMIRIS I H PAMIRIS I H PAMIRIS I H PA----AL PAAL PAAL PAAL PA----AC filter AC filter AC filter AC filter
imagesimagesimagesimages
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60UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Paα emission observations : Early Results
Additional Pointing ObservationsAdditional Pointing ObservationsAdditional Pointing ObservationsAdditional Pointing Observations�One sample result : LMC
◆◆◆◆ We can see the similarities and differences depending on wavelengths
HHHHαααα image (image (image (image (FinkbeinerFinkbeinerFinkbeinerFinkbeiner, 2003) SFD E(B, 2003) SFD E(B, 2003) SFD E(B, 2003) SFD E(B----V) (Schlegel et al. 1998) V) (Schlegel et al. 1998) V) (Schlegel et al. 1998) V) (Schlegel et al. 1998) MIRIS PaMIRIS PaMIRIS PaMIRIS Pa----αααα emission line (PAALemission line (PAALemission line (PAALemission line (PAAL----PAAC) PAAC) PAAC) PAAC)
image image image image
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61UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Comet /2014 Q2 (Lovejoy) : IR ImagesComet /2014 Q2 (Lovejoy) : IR ImagesComet /2014 Q2 (Lovejoy) : IR ImagesComet /2014 Q2 (Lovejoy) : IR Images
◆◆◆◆ Epoch : 18 Jan 2015, Epoch : 18 Jan 2015, Epoch : 18 Jan 2015, Epoch : 18 Jan 2015, ◆◆◆◆ Period : ~ 8,000 YearsPeriod : ~ 8,000 YearsPeriod : ~ 8,000 YearsPeriod : ~ 8,000 Years◆◆◆◆ Inclination : 80.3Inclination : 80.3Inclination : 80.3Inclination : 80.3 °
◆◆◆◆ I I I I ---- BandBandBandBand ◆◆◆◆ H H H H ---- BandBandBandBand
◆◆◆◆ Observed : 12 Jan 2015Observed : 12 Jan 2015Observed : 12 Jan 2015Observed : 12 Jan 2015◆◆◆◆ 3333°×3° Field
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62UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Data Distribution System
• MIRIS Data PipeLine– Data Reduction S/W Developed (with Lynux,
Python)
– Will Be distributed by KASI, Big Data Center
Main Data ServerMain Data ServerMain Data ServerMain Data Server
Local Data ServerLocal Data ServerLocal Data ServerLocal Data Server
MIRIS DR MIRIS DR MIRIS DR MIRIS DR PipelinePipelinePipelinePipeline
– Main data server: Download Data from Satellte
– Local data server (inside KASI) • Download from Main Server
• Header Record Obs Info such as Obs Bands, Position
• FITS Image produce
• Register each database
– MIRIS DR (Data Reduction) Pipeline: Image Production for Science Analysis
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STSAT-3
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MIRIS Earth Obs Camera Images
◆◆◆◆ MIRIS Earth Observation Camera is a separate MIRIS Earth Observation Camera is a separate MIRIS Earth Observation Camera is a separate MIRIS Earth Observation Camera is a separate Infrared Imaging System using Korean IR Sensor. Infrared Imaging System using Korean IR Sensor. Infrared Imaging System using Korean IR Sensor. Infrared Imaging System using Korean IR Sensor.
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STSAT-3
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MIRIS EOC Images
• EOC Imaging: Palm Jebel Ali, Dubai (2014. 1. 31., night)
S
N
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STSAT-3
65UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
MIRIS EOC Images
• EOC Imaging: Korean Peninsula (2014. 1. 15, daytime)
• Google Earth Images
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STSAT-3
66UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
MIRIS EOC Images
• EOC Imaging: Creeks, Pakistan (2014. 1. 17, daytime)
-> Water is colder than land
• Google Earth Images
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STSAT-3
67UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
MIRIS EOC Images
• EOC Imaging: Gangwhado, Korea (2014. 1. 31, nightime)-> Land is colder than water
• Google Earth Images
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STSAT-3
68UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
MIRIS EOC Images
• EOC Imaging: Volcano, Mt. Sinabung, Indonesia (2014. 2. 4., night)
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STSAT-3
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Future Plans for Science Obs
• Follow-Up Observation of Deep Sky Fields– Lockman Hole
– AKARI Deep Field South
– Hubble Deep Field North / South
– Elias Fields
– North / South Galactic Poles
– etc.
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STSAT-3
70UN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, ViennaUN COPUOS, 5 Feb 2015, Vienna
Future Plans
• Side Mission 2: Follow-up of Deep Fields– Lockman Hole
– AKARI Deep Field South
– Hubble Deep Field North / South
– Elias Fields
– North / South Galactic Poles
– etc.
→→→→ Han Han Han Han et al., et al., et al., et al., Publ Astro Soc Pac, Publ Astro Soc Pac, Publ Astro Soc Pac, Publ Astro Soc Pac, Vol.Vol.Vol.Vol. ,126, 2014 ,126, 2014 ,126, 2014 ,126, 2014 SeptSeptSeptSept
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STSAT-3
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Thank [email protected]