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GET /hyperkitty/api/list/[email protected]/email/HSY4LA3R64DTPX4DKYKDQA65OZLIZMMN/?format=api
{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/HSY4LA3R64DTPX4DKYKDQA65OZLIZMMN/?format=api", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api", "message_id": "003001cbaa41$2abdd070$80397150$@net", "message_id_hash": "HSY4LA3R64DTPX4DKYKDQA65OZLIZMMN", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/HSY4LA3R64DTPX4DKYKDQA65OZLIZMMN/?format=api", "sender": { "address": "tjschuessler (a) verizon.net", "mailman_id": "e00b615eeb1940c790a22f139add6462", "emails": "https://mailman.amsat.org/hyperkitty/api/sender/e00b615eeb1940c790a22f139add6462/emails/?format=api" }, "sender_name": "Tom Schuessler", "subject": "[amsat-bb] A bit of history please.", "date": "2011-01-02T05:51:57Z", "parent": null, "children": [], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "Hello to the AO51 team,\n\nSince I am new to the Amateur Satellite world and have only been active for\nabout 7 months now, I have a few historical questions about AO51 and also\nAO27. \n\nWe are now moving into these eclipse periods and I see from the graphic that\nappears in the 2010 version of AMSAT's' \"Getting Started With Amateur\nSatellites\", that the advent of long duration eclipses is a recent\nphenomenon and was not so in the early days of the orbit. If the orbit has\nbeen drifting since initial insertion as sun synchronous, I am curious how\nmuch has the orbit shifted since release? Right now it seems that an AZ of\n90 degrees (Perfect overhead) would happen at about 11:15Z. How much has\nthis changed since insertion? How much orbital decay has occurred since\ninsertion?\n\nAO-27 is much older and somewhat lower also I think. Has it drifted in time\nas compared to what it was following launch? How much orbital decay has\noccurred with it in 17 years?\n\nSuch is the fate of a satellite that does not have any means of on board\norbital maneuverability. Perhaps if the methods for micro propulsion being\ntested by the U. Texas folks with their FastTrack satellites might be\nadaptable to future cubesat designs to help prolong sun synchronous orbits\nand thus mission lifetimes.\n\nMany thanks to all the operational teams for all the satellites on their\nlabor-of-love efforts to keep the birds running in the best possible\ncondition.\n\n73\n\nTom Schuessler\nN5HYP\n\n\n\n", "attachments": [] }