16331
收藏DataCite Commons2023-04-21 更新2025-04-15 收录
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http://esdcdoi.esac.esa.int/doi/html/data/astronomy/hst/16331.html
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资源简介:
The COS Target Acquisition (TA) monitor is divided into two pieces comma NUV and FUV. This program is the NUV portion. Visits BA and BB of this program verify all ACQ-IMAGE mode co-alignments by bootstrapping from PSA+MIRRORA. The assumption comma which should be tested at some point comma is that the PSA+MIRRORA WCA-to-PSA FSW offsets are still as accurate in defining the center of the PSA relative to the WCA as there were in SMOV. The details of the observations are given is the observing section. Visit PB obtains the PSA-MIRRORA to PSA-MIRRORB ACQ-IMAGE alignment. Visit BA takes back-to-back PSA-MIRRORB and BOA-MIRRORA ACQ-IMAGEs and images (with flashes) and also takes G230L comma G285M as well as FUV LP3 G130M and G140L spectra to test the WCA-to-PSA offsets. Visit BB takes back-to-back BOA-MIRRORA and BOA-MIRRORB ACQ-IMAGEs and images (with flashes) and also takes G225M comma G185M comma and FUV LP3 G160M spectra to test the WCA-to-PSA offsets. In all visits comma lamp+target images are taken before and after the TA imaging mode that is being co-aligned (the second ACQ-IMAGE of the program.)
提供机构:
European Space Agency
创建时间:
2023-04-21



