IHW COMET IRIMAG NO-DATA DATA RECORD GZ V1.O

In preparation for the concerted international study of Comet Halley, the IHW conducted a trial run with observations of Comet Crommelin, largely during February and...为筹备哈雷彗星（Comet Halley）的协同国际研究工作，IHW主要于二月及……期间开展了针对克鲁姆林彗星（Comet Crommelin）的观测试运行。