Event JSON
{
"id": "cd1815ee690d8b14e5793b09b4524be9b81707220542ae2a4a870b6202b80fb1",
"pubkey": "39dc3b6ff2d7486fdd84a824621d6c11acfa467dac53cc2a3f09dbe537d70618",
"created_at": 1719238696,
"kind": 1,
"tags": [
[
"imeta",
"url https://files.mastodon.social/media_attachments/files/112/672/026/953/620/731/original/d89b8a0b204968c9.jpeg",
"m image/jpeg"
],
[
"proxy",
"https://mastodon.social/@mcnees/112672027194354574",
"web"
],
[
"t",
"otd"
],
[
"proxy",
"https://mastodon.social/users/mcnees/statuses/112672027194354574",
"activitypub"
],
[
"L",
"pink.momostr"
],
[
"l",
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"pink.momostr"
],
[
"expiration",
"1721834828"
]
],
"content": "Friends, here is a fun little physics story about satellites and relativity. It’s a day late for an #OTD, but please indulge me.\n\nThe Navigation Technology Satellite 2 (NTS-2) was launched into orbit on June 23, 1977, an early step in establishing the GPS NAVSTAR network. It was the first satellite to carry a Cesium atomic clock into orbit! 🧵\n\nImage: Institute of Navigation\nhttps://files.mastodon.social/media_attachments/files/112/672/026/953/620/731/original/d89b8a0b204968c9.jpeg\n",
"sig": "ddf09face1ba9569ad9337d1bb3f2e01e9518d1c897b5a9bbd757cad4152239719a5d2ddd1911d618281dd2310a903e3d763b1854fd539d129cbd6e198b68f68"
}