论文标题
在5年内紫色的轨道性能
In orbit performance of UVIT over the 5 years
论文作者
论文摘要
在过去的5年中，紫外线已经完成了500多个提案的观察，其中约有800个独特的指标。此外，已经进行了定期计划的监测观察结果，并通过其分析量化了与紫外线轨道性能相关的各种关键参数。紫外线通道的敏感性保持稳定，这表明潜在的分子污染没有影响，证实了实施的所有用于避免污染的方案的适当性。多年来，PSF的质量证实了热控制措施的充分性。在性能验证期（PV）阶段获得的早期校准已得到进一步修订，以获得更细微的效果。这些包括更精确的平面场和检测器畸变。紫外线的操作也通过轨道经验而发展，例如对操作测序的调整，从明亮对象检测（BOD）关闭的恢复的方案，BOD阈值的参数等。最后，带电粒子命中对电子设备的某些影响导致了定期重置的均匀策略。在此类操作之一中，近紫外的频道丢失了。以上所有轨道体验都在这里介绍。
Over the last 5 years, UVIT has completed observations of more than 500 proposals with ~ 800 unique pointings. In addition, regular planned monitoring observations have been made and from their analysis various key parameters related to in orbit performance of UVIT have been quantified. The sensitivities of the UV channels have remained steady indicating no effect of potential molecular contamination confirming the adequacy of all the protocols implemented for avoiding contamination. The quality of the PSF through the years confirms adequacy of thermal control measures. The early calibrations obtained during the Performance Verification (PV) phase have been further revised for more subtle effects. These include flat fields and detector distortions with greater precision. The operations of UVIT have also evolved through in orbit experience, e.g. tweaking of operational sequencing, protocol for recovery from bright object detection (BOD) shutdowns, parameters for BOD thresholds, etc. Finally, some effects of charged particle hits on electronics led to opimised strategy for regular resetting. The Near-UV channel was lost in one of such operations. All the above in-orbit experiences are presented here.
