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TheLowellFabry-PerotInterferometerisastate-of-the-art,observatory-class,ground-basedsystemavailableatamodestcost.Attributesincludeverticalmounting,minimizedmovingparts,simplifiedpointingsystem,frequency-stabilizedlaser,andflatfieldshuttering,resultinginbestpossibleerrorreduction.Inaddition,CPIoffersinstallationservices,whichmayentailcarryingthesystemthroughfirst-lightintoroutineoperations,withdailydatacollectionandautomaticanalysis.

ComputationalPhysics,Inc.

Thesystem§ Telecentricopticalsystem,witha150mmdiameterobjectivelens§ AndorDU9341024x1024scientificimagingcamera§ Two-mirrorservodrivenpointingsystemwithstand-alone

controllerandwebinterface§ ImageTool-dataacquisitionsoftware§ Remotelasercalibrationsystem§ 19”rackmountedcontrolsystemsandcomputer§ Technicalsupportforsoftware,includingremotelogincapability

Features§ Customdesignandfabrication§ Resonantcavityspacingfrom3μmto6cm§Maximumthroughputforagivenspectralresolution§ Temperaturestabilizationandpressurepot

◦ PressurepotwithPIDcontrolledpressureservotomaintainpropergaspressureintunedetaloncavity

§ 150mmdiameteretalonwith>80%reflectivityfrom550nm-900nm

§ Etaloncagewithinvarcontactstominimizethermalexpansion

§ 0.4nmFWHM2-cavityinterferencefilter;CWL=630nm

ZonalandmeridionalwindsatAreciboObservatory

ZonalandmeridionalwindsatMillstoneHillObservatory

LowellFabry-PerotInterferometer


ComputationalPhysics,Inc.,hasdevelopedasmall,all-skyfisheyespectralimager.Thiscompactinstrumentiscapableofimaginganentire180°fieldofview,simultaneously.Optically,theall-skyfieldofviewisimagedontoa1392x1040pixelSonyCCDatF/0.95.Atelecentricdesignensuresthatallthechiefraysareatnormalincidenceattheimageplane,allowingtheuseofnarrowbandpassinterferencefilters(<2nm)inthefive-positionfilterwheel.

Applications§ All-skyimaging§ Auroralimaginganddetection§ Cloudmonitoring§ Astronomicalextinctionmeasurements§ Meteorimaginganddetection§ Aerosolandpollutionmonitoring§ Securityandsurveillance

Features§ Mounting:vertical(asamast)§ Finish:anodized§ Fieldofview:180°§ Camera:Atik314L+

◦ CCD:SonyICX285AL◦ 1392x1040pixels◦ 6.45mx6.45mpixels

§ Chipdimension:8.9mmx6.7mm§ PeakQE:65%at540nm§ Fullwellcapacity:27,000e-§ Darkcurrent:0.02e-/s@10Cambient§ USB2built-incomputerinterfacedownloadrate:3.7s

◦ Fullresolution§ Computerincluded§ Software:MaximDLorCPI’sImageTool

QuantumefficiencyofCCDdetector

All-SkyImagerwithfilterwheel

All-skyimageat656.3nm(BalmerAlpha)takennearBoston,MAFiveminuteexposure;nebulaistheNorthAmericanNebula

WaldenSmallAll-SkyImager


ImageToolSoftwareImageToolisintegrated,automateddataacquisitionanddeviceconfigurationsoftware,forusewithimagingsystemsforspectroscopic,aeronomicandastronomicalobservations.ImageToolprovidesasoftwareinterfacetocontrolvarioushardwarecomponentswithinthesystem,fromthecameratotheetalontemperaturecontrollertothenetworkpowercontrolunit.

Features§ ControlsCPI'sfilterwheel,pointinghead,etalon

pressurecontroller,andnetworkpowercontrolunit

§ Acquiresimagesinavarietyofacquisitionmodes:singleframe,imagesequence,andfocusmodes

§ Defines"events"toconfigurethefilterwheel,

camera,andpointingheadsettings§ Abilitytochangecameras’settingsremotely§ Scheduleseventsandimageacquisition

◦ Customizeddataacquisitionprocess◦ ExperimentinformationisrecordedinFITS

imageheader◦ SavesimagesinFITSandJPEGfileformats

Attributes§ Flexible-Usingtheframeworkofevents,thedataacquisition

processcanbecustomizedbasedonthenatureoftheexperimentorobservation

§ Easytouse-Createtemplatesfordataacquisitioneventsthat

areusedfrequently§ PreciseDataAcquisition-Centralizedsoftwarecontrolofall

hardwarecomponentsmeanstunableexperimentparametersforoptimalresults

§ DetailedSystemInformation-Allkeyexperimentsettingsare

recordedwiththeimagesintheimageheader,ensuringthatallsystemparametersatthetimeoftheexperimentareavailabletocalibrate,analyzeandvisualizeimagedata

§ Control–Theabilitytodefineeventsbycontrollingthehardwareandacquiringdata,allowingtheusertopre-scheduledataacquisitionsessions

ScreenshotofImageTool

Interfaceoptions§ MerrimackSeriesofproducts

§ AvarietyCCDcameras,includingAndor,

PrincetonInstruments,andAtik

LowellFabry-PerotInterferometer

MiddlesexSpectrograph

WaldenAll-SkyImager PointingHeadand

FilterWheel


SPECTRALSKIES

MiddlesexSpectrograph

Features§ Spectralresolution:2nm,orless,depending

uponslitsize§ Fieldofview:180°alongslit§ Spectralrange:400nmto800nm§ Photometricsensitivity:4.6photons/sec-

pixel-kilorayleigh◦ Ex:1kilorayleighauroralsignalwith3x1binning

(perpendiculartoslit)produces13.8photons/pixelina1secondintegrationperiod

◦ A30rayleighairglowsignalbinned3x1andusinga15secondintegrationgenerates6photons/pixel

§ Readnoise4e-§ Robust,monolithicdesign§ Softwareincluded§ Nomechanical,pressure,orvoltagescanning

TheSpectrographisacompact,meridionalinstrumentcapableofimagingafull180°sliceoftheskyontothe1392x1040pixelCCD.Withaspectralresolutionof2nmorless,andaspectralrangeof400–800nm,thisspectrographisidealforauroralandairglowspectroscopy.

WamesitSpaceWeatherStation§ Turnkeyhousingforspaceweatherinstruments§ Opticaldome§ 110volts§ Temperature-controlledinterior§ GPSforTECmeasurementsinionosphere§ Onboardcomputerfordataacquisition§ Communicationcapabilitiesinclude:

◦ 4GandLTE◦ Wi-Fi

ListofServices§ Allinstrumentsdeliveredcomplete§ Allproductsuseacommonsoftware,included§ Opportunitiesfortraining,serviceandmaintenancearrangements,andsoftwareupdatesareavailableuponrequest