ʻO nā optics kāmela uila no ka teleskope nui Survey Synoptic haʻalele iā LLNL mākaukau no ka hoʻohui.
He hana nui: ka maka aniani nui loa no ka pahupaʻikiʻi uila nui.
ʻO ke aniani ke ana ana i ka 1.57 mau mika ākea a ua manaʻo ʻia ʻo ia ke aniani kilohi kiʻekiʻe kiʻekiʻe loa i hana ʻia i hōʻea i ʻO Laboratory Laboratory SLAC National, kahi anuu nui i mua i kona hopena hopena i kahi kāmela uila i hoʻohana ʻia e ka Large Synoptic Survey Telescope (LSST).
ʻO ke anaina aniani pahupaʻikiʻi piha, me ka maka aniani nui L1 me kahi aniani L2 hoa liʻiliʻi e ana ana i ka 1.2 mika i ke anawaena, i hoʻolālā ʻia e Lawrence Livermore National Laboratory. (LLNL) a kūkulu ʻia ma mua o ʻelima mau makahiki e Poepoe Aerospace a me ka mea hoʻolaki haʻahaʻa ʻ .naehana Optical Arizona. E hāʻawi ʻia kahi aniani ʻekolu, L3, 72 kenetimika i ke anawaena, i ka SLAC i loko o hoʻokahi mahina.
Ke mālama nei ʻo SLAC i ka hoʻolālā holoʻokoʻa, ka hana ʻana a me ka ʻākoakoa hope loa o kā LSST $ 168 miliona, 3,200-megapixel kāmela kikohoʻe, i ʻōlelo ʻia i kēia manawa he 90 pākēneka piha a no ka hoʻopau ʻia e ka mua 2021.
"ʻO ka kūleʻa o ka hana ʻana o kēia ʻaha kūkā opua he hōʻailona ia no ko LLNL mākaukau alakaʻi honua ma nā optics nunui, i kūkulu ʻia i mau makahiki he nui i ka hana ʻana o nā ʻōnaehana laser nui a mana loa hoʻi o ka honua," i ʻōlelo ʻo Scot Olivier, ʻo ia ka pili pū i ka papahana LSST a Lawrence Livermore no ʻumi mau makahiki a ʻoi paha.
Wahi a ka LSST Corporation, ʻo ka pahupaʻikiʻi uila i ka LSST ka pahupaʻikiʻi uila nui loa i kūkulu ʻia. E ana ka hoʻolālā hope loa i ka 1.65 x 3 mau mika a kaupaona 2,800 kg. He puka nui ia, he ākea kiʻi ākea ākea ākea e hiki ke nānā i ka mālamalama mai ka ultraviolet kokoke i kahi infrared.
Ke ʻākoakoa, e noho nā aniani L1 a me L2 i kahi hanana optics i mua o ke kino pahupaʻikiʻi; L3 e hana i ka puka komo i ka cryostat o kā kāmela, i piha i kāna mokulele kikoʻī a me nā uila uila e pili ana.
Koina kikoʻī e pono ai
O ka Kāmera kikohoʻe CCD e hoʻopaʻa i nā kiʻi i ʻike ʻia e ka ʻōnaehana opua nui o ka teleskopa, nona iho a hoʻolālā hoʻolālā ʻekolu anianihoʻohui i ka 8.4-mika kumu mua, 3.4-mika lua a me 5-mika tertiary aniani. Kuhi ʻia ka mālamalama mua ma LSST i ka makahiki 2020, me ka hoʻomaka ʻana o nā hana i 2022.
Ke hoʻolālā nei i kahi kāmela uila hiki ke hālāwai i nā pahuhopu kiʻi kiʻekiʻe a LSST i alakaʻi iā LLNL e hoʻoponopono i nā pilikia he nui, e like me ka pūʻulu papahana. Hoʻohana ka hōkeo hopena hope loa i kahi mosaic o 189 16-megapixel silikone mīkiniʻimi i hoʻonohonoho ʻia ma 21 "rafts" e hāʻawi i ka nui o ka 3.2 gigapixels hoʻonā.
Lawe ka pahu paʻi kiʻi i kahi hōʻike 15 kekona i kēlā me kēia 20 kekona, me ka teleskope e hoʻopaʻa hou ʻia ana a noho i loko o ʻelima kekona, e koi ana i kahi hanana pōkole a paʻakikī hoʻi. Hōʻike kēia i kahi helu f liʻiliʻi liʻiliʻi, me ka nānā pono ʻana o ke kāmela.
Kuhi ʻia nā palapala LSST he ʻōlelo kuʻikahi nā hōʻike he 15 kekona e ʻae ai i ka ʻike ʻana i nā kumu nāwaliwali a neʻe hoʻi. ʻO nā hōʻike lōʻihi e hoʻemi ana i ka overhead o ka heluhelu kamera a me ke kūkulu hou ʻana i teleskope, e ʻae ana i nā kiʻi hohonu, akā ʻo nā mea neʻe wikiwiki a kokoke i ka Honua e neʻe nui i ka wā o kahi hōʻike. E kiʻi ʻia kēlā me kēia kiko ma ka lani me nā hōʻike ʻelua ʻelua ma hope ʻelua, e hōʻole i nā kuʻina cosmic ray ma nā CCD.
"I kēlā me kēia manawa āu e hana ai i kahi hana no ka manawa mua, aia nō he mau pilikia, a me ka hana ʻana o nā aniani LSST L1 i hōʻoia ʻole ʻia he ʻokoʻa," i ʻōlelo ai ʻo Justin Wolfe o LLNL. “Ke hana nei ʻoe me kahi ʻāpana aniani ma mua o ʻelima kapuaʻi ke anawaena a ʻehā wale nō ʻīniha ka manoanoa. Kekahi hana hewa, haʻalulu a i ʻole ka ulia pōpilikia hiki ke hopena i ka hōʻino ʻana i nā aniani. He hana hana lima ka maka aniani a haʻaheo mākou āpau iā ia. ”
Ka manawa Post: ʻOkakopa-31-2019