div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader043vdocumentsmxreader043viewer2022020223575067ac1a28ab0f07ac9d5bhtml5page1jpg target=_blank img data-url=accuracy-of-time-on-magnetogramshtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Accuracy of Time on Magnetograms loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader043vdocumentsmxreader043viewer2022020223575067ac1a28ab0f07ac9d5bhtml5thumbnails1jpg width=140 height=200 adivp© 1910 Nature Publishing Grouppdiv