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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/7FSHUEK2NQO5AFEZDZA72G6TREB3YQ5X/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "em30869bf7-881e-4406-bb78-94cfd25abb1c@dibor",
    "message_id_hash": "7FSHUEK2NQO5AFEZDZA72G6TREB3YQ5X",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/NSMXPU3DJXIAVNRNZR25UK3RFGU5YCO3/?format=api",
    "sender": {
        "address": "dibor (a) iname.com",
        "mailman_id": "2d556b4709124873859bd076d89ed525",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/2d556b4709124873859bd076d89ed525/emails/?format=api"
    },
    "sender_name": "Dimitry Borzenko",
    "subject": "Re: [amsat-bb] LongJiang and Doppler correction",
    "date": "2018-05-30T15:16:54Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/MA6CIP4WMAUJJFHNBNE6JGXTBIA5C6FL/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Or set path to some file with chosen name and rename every new \ndownloaded file and overwrite existed.\n\nRegards.\n\n\n------ Original Message ------\nFrom: \"Dimitry Borzenko\" <[email protected]>\nTo: \"Mike Rupprecht\" <[email protected]>; \"'AMSAT BB'\" \n<[email protected]>\nSent: 30.05.2018 18:10:29\nSubject: Re: AW: AW: [amsat-bb] LongJiang and Doppler correction\n\n>Hi Mike.\n>Understood.\n>Program Tracking CC block request exact file, path is not enough.\n>I should to change every day/ two days Program Tracking CC setting for \n>each demodulator?\n>Or I do not understand something?\n>\n>Regards.\n>\n>------ Original Message ------\n>From: \"Mike Rupprecht\" <[email protected]>\n>To: \"'Dimitry Borzenko'\" <[email protected]>; \"'AMSAT BB'\" \n><[email protected]>\n>Sent: 30.05.2018 17:23:48\n>Subject: AW: AW: [amsat-bb] LongJiang and Doppler correction\n>\n>>Dimitry,\n>>\n>>the default directory is /home/lilac/lilacsat/gr-dslwp/examples/\n>>Edit the correct path in the Program Tracking CC block.\n>>\n>>73 Mike\n>>DK3WN\n>>\n>>-----Ursprüngliche Nachricht-----\n>>Von: Dimitry Borzenko [mailto:[email protected]]\n>>Gesendet: 30 May 2018 14:58\n>>An: Mike Rupprecht; 'AMSAT BB'\n>>Betreff: Re: AW: [amsat-bb] LongJiang and Doppler correction\n>>\n>>Hello Mike.\n>>I saw new files but I do not know where I should to put this file \n>>(which folder?).\n>>\n>>Regards.\n>>\n>>\n>>------ Original Message ------\n>>From: \"Mike Rupprecht\" <[email protected]>\n>>To: \"'Dimitry Borzenko'\" <[email protected]>; \"'AMSAT BB'\"\n>><[email protected]>\n>>Sent: 30.05.2018 14:56:51\n>>Subject: AW: [amsat-bb] LongJiang and Doppler correction\n>>\n>>>Hi Dimitry,\n>>>\n>>>TLE are useles in lunar orbit.\n>>>\n>>>You have to update the tracking file in all four decoders.\n>>>\n>>>https://github.com/bg2bhc/dslwp_doc/blob/master/program_tracking_dslwp-\n>>>b_201\n>>>80529.txt\n>>>\n>>>(or later files)\n>>>\n>>>73 Mike\n>>>DK3WN\n>>>\n>>>-----Ursprüngliche Nachricht-----\n>>>Von: AMSAT-BB [mailto:[email protected]] Im Auftrag von\n>>>Dimitry Borzenko\n>>>Gesendet: 30 May 2018 10:36\n>>>An: AMSAT BB\n>>>Betreff: Re: [amsat-bb] LongJiang and Doppler correction\n>>>\n>>>Hello.\n>>>Have problem with running Live CD.\n>>>Have made USB bootable diskONkey , system is runs.\n>>>Mun Downlink Proxy is configured and Orbit TLE can be downloaded, but\n>>>ALL ports is NOT connected!\n>>>RTL is running and freq. calibrated.\n>>>Also while running Decoder got 4 terminals running and have some\n>>>message about \"File is not find or EOF .....\"\n>>>\n>>>What I did wrong?\n>>>\n>>>de 4z5cp.\n>>>\n>>>\n>>>------ Original Message ------\n>>>From: \"Scott\" <[email protected]>\n>>>To: \"AMSAT BB\" <[email protected]>\n>>>Sent: 30.05.2018 2:30:33\n>>>Subject: Re: [amsat-bb] LongJiang and Doppler correction\n>>>\n>>>>Hi Jean Marc.\n>>>>\n>>>>I have tried to follow the news of these lunar satellites.  While\n>>>>several of the guys with DSN capability have received the S-Band\n>>>>downlinks, I'm not aware of anyone hearing anything on 70cm past the\n>>>>first day as the sats left Earth.\n>>>>\n>>>>In fact, even though I am listening every night for the 70cm \n>>>>telemetry\n>>>>(using the team's GNU Radio flowgraphs), I have not heard any\n>>>>confirmation that the 70cm transmitter is even on (telemetry -or-\n>>>>JT4).\n>>>>\n>>>>-Scott,  K4KDR\n>>>>\n>>>>\n>>>>=======================================================\n>>>>\n>>>>-----Original Message----- From: Jean Marc Momple\n>>>>Sent: Tuesday, May 29, 2018 12:37 PM\n>>>>To: AMSAT BB\n>>>>Subject: Re: [amsat-bb] LongJiang and Doppler correction\n>>>>\n>>>>Dear All,\n>>>>\n>>>>May be a stupid question for the experts, but genuine from me.\n>>>>\n>>>>Has anyone received any FT4G beacon signal from the Longiang Sats so\n>>>>far?\n>>>>\n>>>>I have being trying to do so for the past week without success.\n>>>>\n>>>>73\n>>>>\n>>>>\n>>>>Jean Marc (3B8DU)\n>>>>\n>>>>\n>>>>\n>>>>\n>>>>>On May 26, 2018, at 8:54 PM, Nico Janssen <[email protected]> wrote:\n>>>>>\n>>>>>\n>>>>>In the coming days the doppler shift on the 70 cm downlink of\n>>>>>LongJiang 2 will vary between +2000 and -2200 Hz (for my QTH).\n>>>>>This can easily be calculated with GMAT using the script I \n>>>>>published\n>>>>>a couple of hours ago (see my earlier post).\n>>>>>\n>>>>>73,\n>>>>>Nico PA0DLO\n>>>>>\n>>>>>On 26-05-18 17:44, [email protected] wrote:\n>>>>>>Michael\n>>>>>>\n>>>>>>I think that there are three main components to the Doppler shift\n>>>>>>for a satellite orbiting the moon.\n>>>>>>\n>>>>>>1.  Earth rotation moving the observer toward the moon at moonrise\n>>>>>>(+ve\n>>>>>>Doppler) and moonset (-ve).\n>>>>>>\n>>>>>>2.  Earth-moon distance variation (smaller than 1, and very slowly\n>>>>>>changing in comparison).\n>>>>>>\n>>>>>>3.  Orbital velocity of the satellite itself.\n>>>>>>\n>>>>>>1 and 2 are easy to work out using EME software, eg WSJT-X or\n>>>>>>Moonsked. I can't help with 3.\n>>>>>>\n>>>>>>Taking today as an example, total of 1 and 2 for the moon vary \n>>>>>>from\n>>>>>>~\n>>>>>>+3\n>>>>>>to -4.5kHz at S-Band.\n>>>>>>\n>>>>>>With DSN satellites many of us use(d) JPL Horizons to calculate\n>>>>>>Doppler shift for Deep Space missions.  Observing the Doppler \n>>>>>>shift\n>>>>>>change when probes were captured by the target planet was quite\n>>>>>>interesting (a slowly changing shift to a cyclic one).\n>>>>>>\n>>>>>>73\n>>>>>>\n>>>>>>Charlie G3WDG\n>>>>>>\n>>>>>> > I find that an interesting question. One would think that since\n>>>>>> > the\n>>>>>>moon\n>>>>>>>orbits the earth at a much much slower rate than a satellite that\n>>>>>>>there would be almost no Doppler correction required. If you\n>>>>>>>compensate for the speed of the orbit around the moon that is \n>>>>>>>also\n>>>>>>>at a much lower speed than a Earth satellite would be traveling \n>>>>>>>at.\n>>>>>>>Earth satellites are in the 17,000 mph range and moon satellites\n>>>>>>>are in the 2000 mile an hour range orbiting speed. Also the \n>>>>>>>chance\n>>>>>>>that the satellite orbiting the moon could be at such an axis \n>>>>>>>where\n>>>>>>>it is in full visibility the earth the whole time, at that point\n>>>>>>>there would not be a Doppler correction based upon satellite\n>>>>>>>velocity only the moon's velocity. Will be interesting to hear \n>>>>>>>the\n>>>>>>>experts chime in on this.\n>>>>>>>\n>>>>>>>Michael Vivona\n>>>>>>>Sent from my iPad\n>>>>>>>\n>>>>>>>On May 25, 2018, at 5:49 PM, Stefan Wagener <[email protected]>\n>>>>>>>wrote:\n>>>>>>>\n>>>>>>>The problem will not be the pointing (you could just point to the\n>>>>>>>moon :-) Pending distance, speed and orbit around the moon and\n>>>>>>>position to earth, you might have a difficult time adjusting for\n>>>>>>>doppler. I let more knowledgable folks chip in on this one.\n>>>>>>>\n>>>>>>>Stefan, VE4NSA\n>>>>>>>\n>>>>>>>>On Fri, May 25, 2018 at 2:40 PM Jordan Trewitt\n>>>>>>>><[email protected]>\n>>>>>>>>wrote:\n>>>>>>>>\n>>>>>>>>If it was the 70 cm downlink, you might be able to schedule\n>>>>>>>>something with someone else's SATNOGS station (idk how that'd \n>>>>>>>>work\n>>>>>>>>with getting a rotator to work though), if they have a large\n>>>>>>>>enough yagi that is.\n>>>>>>>>-Jordan\n>>>>>>>>KF5COQ\n>>>>>>>>\n>>>>>>>>>On Fri, May 25, 2018, 12:46 PM Zach Metzinger\n>>>>>>>>><[email protected]>\n>>>>>>>>>wrote:\n>>>>>>>>>\n>>>>>>>>>>On 05/25/18 11:25, Nico Janssen wrote:\n>>>>>>>>>>\n>>>>>>>>>>It is confirmed from China that LongJiang 2 has performed a\n>>>>>>>>>>successful braking maneuver, so that it is now in lunar orbit.\n>>>>>>>>>>No further details yet.\n>>>>>>>>>Nico,\n>>>>>>>>>\n>>>>>>>>>Do you know of any WebSDRs which are pointed and tuned to the\n>>>>>>>>>downlink signals?\n>>>>>>>>>\n>>>>>>>>>73,\n>>>>>>>>>\n>>>>>>>>>--- Zach\n>>>>>>>>>N0ZGO\n>>>>\n>>>>_______________________________________________\n>>>>Sent via [email protected]. AMSAT-NA makes this open forum \n>>>>available\n>>>>to all interested persons worldwide without requiring membership.\n>>>>Opinions expressed\n>>>>are solely those of the author, and do not reflect the official \n>>>>views\n>>>>of AMSAT-NA.\n>>>>Not an AMSAT-NA member? Join now to support the amateur satellite\n>>>>program!\n>>>>Subscription settings: \n>>>>http://www.amsat.org/mailman/listinfo/amsat-bb\n>>>\n>>>_______________________________________________\n>>>Sent via [email protected]. AMSAT-NA makes this open forum available\n>>>to all interested persons worldwide without requiring membership.\n>>>Opinions expressed are solely those of the author, and do not reflect\n>>>the official views of AMSAT-NA.\n>>>Not an AMSAT-NA member? Join now to support the amateur satellite\n>>>program!\n>>>Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb\n>>>\n>>\n\n",
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