
aasteeriya (bahirakasha pedakam)

aasteeriya (astrophysicsil gaveshanam saadhyamaakkunna arck second space telescope) oru cubesat upayogichu jyothisshaasthra alavukal nadathunnathinulla oru cheria bahirakasha dooradarshini saankethikavidyayude prakadanavum avasaravaada shaasthra douthyavumaayirunnu. masaachyusets instittyoott oof teknolajiyum (eimti) naasayude jettu propulsion laboratory thammilulla sahakaranathodeyaanu ithu roopakalppana cheythath. bahiraakaashath vijayakaramaayi pravarthicha aadyathe jpl-biltt cubasaattaayirunnu aasteeriya. aadyakaala kariyarile shaasthranjareyum enchineeyarmaareyum parisheelippikkunnathinu oru padhathiyaayi aadyam vibhavanam cheythirunna aasteeriyayude saankethika lakshyam arck second level line-oof-saitt pooyinting erarum uyarnna sthirathayulla phokkal playin thaapanila niyanthranavum kaivarikkuka ennathaayirunnu. eee saankethikavidyakal krithyathayulla photometric pradhaanamaan, athaayath.iii., kaalakramena nakshathraprakaashatthinte alavu. krithyamaaya photometry, nakshatra pravartthanam, exoplaanattukale parivartthanam cheyyal, mattu jyothishbhouthika prathibhasangal enniva padikkaanulla oru maarggam nalkunnu.
2017 august 14 nuu aasteeriya vikshepikkukayum 2017 november 20 nuu anthaaraashtra bahirakasha nilayathil ninnu thaazhnna bhouma bhramanapathathilekku vinyasikkukayum cheythu. praadhamika dauthyam 90 divasam neenduninnu, ennaal upagraham moonnu vipuleekritha douthyangaliloode 745 divasam pravartthanam thudarnnu, avasaanathe vijayakaramaya ashayavinimayam 2019 desember 5 nuu nadannu. upagraham 2020 epril 24 nuu shayikkukayum cheythu. pradhana anweshakan masaachyusets instittyoott oof teknolajiyil ninnulla canadian-american jyothishaasthranjanum graha shaasthranjanumaaya saaraa seager aayirunnu.
avalokanam.
traansit reethi upayogichu exoplaanattukal kandethunnathinayi puthiya saankethikavidyakal pareekshikkukayenna lakshyathode anthaaraashtra bahirakasha nilayathil (aii. ezz. iii. ezz) vinyasicha aarr yoonit (6yuu) cubesat bahirakasha dooradarshiniyaanu astrophysicsil (aasteeriya) gaveshanam saadhyamaakkunna arck second bahirakasha dooradarshini. aadyakaala currier jeevanakkaare parisheelippikkunnathinu faittan prograamiloode jplil eee paripaadikku dhanasahayam nalki. athinte lakshyam 90 divasam neenduninnu, athinusesham bahirakasha pedakavumaayulla sanbarkkam nashtappedunnathuvare athu neetti.
nakshathrangalude pravartthanam, exoplaanattukale parivartthanam cheyyal, mattu jyothishbhouthika prathibhasangal enniva padikkunnathinu avasaravaadaparamaaya adisthaanathil krithyamaaya photometry nadatthaan nakshathrangalude kazhivukal praapthamakki. arck second level line oof saitt pooyinting error neduka, krithyathayulla photometricaayi valare sthirathayulla phokkal playin thaapanila niyanthranam" ennivayaayirunnu douthyathinte saankethika lakshyangal, traansitting exoplaanattukal kandethunnathinum avayude hoost nakshathrangalude swabhaavam vyakthamaakkunnathinumalla oru maarggamaayi. 20 minittiladikam nireekshanangalil pooyinting sthiratha pradharshippichu. bahirakasha pedakatthinte ooriyanteshanum phokkal playin sthaanavum krameekarichukondu lakshya nakshatram phokkal playinil athe sthaanathekku thirike nalkikkond etto athiladhikamo divasathinullil kuranjathu anchu nireekshanangalil pooyinting aavarthanakshamatha nirnnayikkum.
oresamayam onniladhikam lakshyangal nireekshikkunnathinum mattu dooradarshinikalkku nireekshikkaan puthiya vasthukkal thirichariyunnathiloode deerghakaala dauthya lakshyangal parishkarikkunnathinum kuranja chelavil bahirakasha dooradarshinikalude oru koottatthinu eee dauthyam oru paatha kandethalayi varthichekkaam. oru photometric dittakshan systethe oru cubasaattaayi cheruthaakkunnath, sooryaneppolulla ettavum thilakkamulla nakshathrangalekkurichu thudarchayaayi padikkaan onniladhikam bhramana nireekshana kendrangalude oru koottatthe praapthamakkum, avayude chelavu kanakkiledukkumbol parambaraagatha bahirakasha nireekshanashaalakk ithu saadhyamalla. deerghakaalathekku onno athiladhikamo cubasaattukal oru taargett staarilekku choondunnathu deerghakaalathekku sanjarikkunna exoplaanattukale velippeduthum. bhaaviyile bahirakasha dooradarshinikalude roopakalppanayekkurichulla adhika vivarangalum eee dauthyam nalki.
lonch cheyyuka.
2017 august 14 nuu oru space ex faalkkan-9 rokkattil (mission space ex sii. aarr. ezz-12) aasteeriya vikshepichu, 2017 novemberil anthaaraashtra bahirakasha nilayathil ninnu thaazhnna bhouma bhramanapathathilekku vinyasichu. isile oru kroo amgam isinu purathulla kaimaattatthinaayi cargo vaahanathil ninnu japanese pareekshana module (jm) airlockilekku upagraham maatti.
design.
2010 kalude thudakkathil roopakalppana cheytha exoplaanatsaatt enna nirddishta 3 yuu cubesat douthyathinte thudarchayaayirunnu aasteeriya ashayam. 10x20x30 centimeter alakkunna 6yuu cubusaattaanu aasteeriya dooradarshini, ithinu 6yuu cubasaattinte pindamundu. vinyasikkaavunna sthira solar paanalukalum recharge cheyyaavunna baattarikalumaan vaidyuthi vitharanam cheythath.
vaanijyaparamaaya prathikarana chakrangal parukkan ooriyanteshan (manobhaava niyanthranam) nalki, athesamayam sajeeva pixel censoril (cmos) oru koottam guide staarukal tracuchaith sheshikkunna pooyinting pishakukalkk nashtapariharam nalkunnathinaayi peeso electric positioning ghattam neekkiyaanu phine pooyinting niyanthranam nediyathu. taargett staar imej oru dittaktar pixalinte oru bhaagathinullil deerghakaalathekku nilanirthuka, 60 arck secondinekkaal mikacha pooyinting krithyathayode, 20 minitt kaalayalavil 5 arck second pole krithyathayode nilanirthuka ennathaayirunnu lakshyam. oro pixalinteyum nettam thaapanila sensitiivu aayirunnu, athinaal aasteeriyayude randaamathe lakshyam imaging dittaktarinte millikelvin-level thaapanila sthiratha pradarshippikkuka ennathaayirunnu.
photometric daatta shekharikkaanum oru cubesattil ninnu photometric prakasha vakrangal prosess cheyyaanumulla kazhivu aasteeriya pradharshippichu. dvitheeya prayogangalil nakshatra bhramana kaalayalavukal alakkuka, exoplanet hosttukalude nakshatra pravartthanatthinte swabhaavam, oresamayam photometry upayogichu bhoomi adisthaanamaakkiyulla radial vegatha alavukale pinthunaykkuka enniva ulppedunnu. 90 divasathe aasootritha douthyathinte vijayathin sesham, aasteeriyayude vipuleekritha dauthyam radial velosity reethi kandethiya kuranja pindamulla grahangalumaayi thilangunna nakshathrangale (luminosity vimag <8) lakshyamittu, avaa ithuvare sanjarikkaan ariyilla.
shaasthreeya payload.
telescope pelodil oru lense baffle assembly oru cmos imager phokkal playin gadippicha rund-axis peeso electric positioning ghattavum ulppedunnu. phokkal playinil 43 milleemettar vyaasamulla oru chithram focus cheiyunna, 28.6-degree feeld oof view ulla oru f/1.4 85 milleemettar sease lense aarr gadakangalum chernnathaanu optiks vibhaagam. phokkal playin shreniyil rund active dittaktar eriyakal undaayirunnu-shaasthra pravartthanam niravettunna oru valia cmos dittaktar, manobhaava niyanthrana samvidaanathinu ooriyanteshan daatta nalkunnathinu drutha-cadense staar camerayaayi pravartthikkunna oru cheria cmos sensor.
2018 eprilil naasayude jpl aasteeriya "athinte ellah praadhamika dauthya lakshyangalum poortthiyaakkiyittunna report cheythu, boardile miniaturised saankethikavidyakalkku pratheekshichathupole bahiraakaashath pravartthikkaan kazhiyumennu theliyikkunnu."

