highaltitude.log.20190111

[00:01] Geoff-G8DHE-Lap (~Geoff-G8D@geoffg8dhe.plus.com) joined #highaltitude.
[00:01] Geoff-G8DHE_ (~Geoff-G8D@geoffg8dhe.plus.com) left irc: Read error: Connection reset by peer
[00:12] michal_f (~mfratczak@91-145-163-242.internetia.net.pl) left irc: Quit: Leaving
[00:39] Viproz_ (~Viproz@unaffiliated/viproz) joined #highaltitude.
[00:43] Viproz (~Viproz@unaffiliated/viproz) left irc: Ping timeout: 252 seconds
[01:37] happysat (~katpoep@s5594c83f.adsl.online.nl) left irc: Ping timeout: 252 seconds
[01:42] happysat (~katpoep@s5594c83f.adsl.online.nl) joined #highaltitude.
[02:02] Viproz__ (~Viproz@unaffiliated/viproz) joined #highaltitude.
[02:05] Viproz_ (~Viproz@unaffiliated/viproz) left irc: Ping timeout: 252 seconds
[02:07] xfce (~anony@85.10.26.226) left irc: Read error: Connection reset by peer
[02:09] Viproz_ (~Viproz@unaffiliated/viproz) joined #highaltitude.
[02:12] Viproz__ (~Viproz@unaffiliated/viproz) left irc: Ping timeout: 252 seconds
[02:29] Kodar (~Kodar@93-142-12-42.adsl.net.t-com.hr) left irc:
[02:51] nigelvh (~nigel@50-46-212-13.evrt.wa.frontiernet.net) left irc: Ping timeout: 246 seconds
[02:53] nigelvh (~nigel@50-46-212-13.evrt.wa.frontiernet.net) joined #highaltitude.
[02:53] Nick change: nigelvh -> Guest17494
[03:00] d33p3y35 (~d33p3y35@91-145-163-242.internetia.net.pl) left irc: Read error: Connection reset by peer
[03:02] d33p3y35 (~d33p3y35@91-145-163-242.internetia.net.pl) joined #highaltitude.
[03:30] BitEvil (~quassel@tor/regular/SpeedEvil) joined #highaltitude.
[03:30] Nick change: SpeedEvil -> Guest24135
[03:31] Guest24135 (~quassel@tor/regular/SpeedEvil) left irc: Ping timeout: 246 seconds
[03:54] DL7AD (~sven@2001:16b8:486f:3700:e0fb:6ff4:fd09:a01a) left irc: Ping timeout: 250 seconds
[03:55] tweetBot (~nodebot@philcrump.co.uk) left irc: Remote host closed the connection
[03:55] tweetBot (~nodebot@philcrump.co.uk) joined #highaltitude.
[04:10] DL7AD (~sven@2001:16b8:48ad:4700:4df8:eb3e:74fd:72bb) joined #highaltitude.
[04:35] Nick change: Guest17494 -> nigelvh
[05:20] YO9GJX (~YO9GJX@109.100.112.75) left irc: Remote host closed the connection
[05:34] Nick change: BitEvil -> SpeedEvil
[05:36] PE-Balloon (05cedd43@gateway/web/freenode/ip.5.206.221.67) joined #highaltitude.
[05:56] day__ (~Unknown@unaffiliated/day) joined #highaltitude.
[06:00] day (~Unknown@unaffiliated/day) left irc: Ping timeout: 272 seconds
[06:00] Nick change: day__ -> day
[06:12] Viproz_ (~Viproz@unaffiliated/viproz) left irc: Read error: Connection reset by peer
[07:27] Nilkki (c1416551@gateway/web/freenode/ip.193.65.101.81) joined #highaltitude.
[07:42] Nilkki (c1416551@gateway/web/freenode/ip.193.65.101.81) left irc:
[08:55] xfce (~anony@cpe-85-10-26-226.dynamic.amis.net) joined #highaltitude.
[09:03] Heppie_2E0VTO (4f6393c4@gateway/web/freenode/ip.79.99.147.196) joined #highaltitude.
[09:26] Kodar (~Kodar@93-139-144-96.adsl.net.t-com.hr) joined #highaltitude.
[10:17] chris_99 (uid26561@gateway/web/irccloud.com/x-polkbwmduyyfhqsl) joined #highaltitude.
[11:17] xfce (~anony@cpe-85-10-26-226.dynamic.amis.net) left irc: Read error: Connection reset by peer
[11:26] PB0AHX-Herman (~PB0AHX@53540677.cm-6-5a.dynamic.ziggo.nl) joined #highaltitude.
[11:27] <PB0AHX-Herman> HNY to ALL
[11:28] <fsphil> that remains to be seen :)
[11:28] <fsphil> I'll let you know 2020-01-01
[11:28] <PB0AHX-Herman> hihihi fun
[11:29] <PB0AHX-Herman> is that for sure i live 1 more year
[11:58] <gonzo_> that conversation needs to stay on 80mtrs
[12:02] <SA6BSS-Mike> lol
[12:05] <fsphil> haha
[12:16] Viproz (~Viproz@unaffiliated/viproz) joined #highaltitude.
[12:55] FireFighter (~firefight@2601:44:4200:ab4f:854e:f5ad:e7e9:b46e) joined #highaltitude.
[13:45] happysat (~katpoep@s5594c83f.adsl.online.nl) left irc: Remote host closed the connection
[14:16] happysat (~katpoep@s5594c83f.adsl.online.nl) joined #highaltitude.
[14:44] gb73d (gb73d@88-106-135-204.dynamic.dsl.as9105.com) joined #highaltitude.
[14:55] xfce (~anony@cpe-85-10-26-226.dynamic.amis.net) joined #highaltitude.
[15:24] PE-Balloon (05cedd43@gateway/web/freenode/ip.5.206.221.67) left irc: Quit: Page closed
[15:30] <chris_99> Out of interest, do new gps satellites all use hydrogen masers? (while the older ones use caesium + rubidium clocks?)
[15:32] <craag> iirc galileo sats use masers with rubidium backup.
[15:32] <chris_99> ah yeah i just found something to that effect too, i just found this too "The onboard passive hydrogen maser and rubidium clocks are very stable over a few hours. If they were left to run indefinitely, though, their timekeeping would drift, so they need to be synchronized regularly with a network of even more stable ground-based reference clocks." i didn't realise that
[15:57] YO9GJX (~YO9GJX@109.100.112.75) joined #highaltitude.
[16:54] Heppie_2E0VTO (4f6393c4@gateway/web/freenode/ip.79.99.147.196) left irc: Quit: Page closed
[17:08] OLHZN (~Tory@cpe-66-66-13-40.rochester.res.rr.com) joined #highaltitude.
[17:25] OLHZN (~Tory@cpe-66-66-13-40.rochester.res.rr.com) left irc: Read error: Connection reset by peer
[17:25] The20YearIRCloud (uid38883@gateway/web/irccloud.com/x-xhydaxwwjcypsvph) left irc: Quit: Connection closed for inactivity
[17:39] OZ7EMA (~emanuel_@151.38.150.176) joined #highaltitude.
[17:44] <nigle> The ground stations also monitor the precise orbit of the satellite, so that the ephemeris can be updated.
[17:45] <SpeedEvil> The ground stations are really expensive.
[17:45] <chris_99> it sounds liike the ground stations use an active maser i think
[17:45] <russss> part of the issue is that the precise orbit of the satellite affects the clock due to relativity. So the satellite's clock is always going to drift even if it has the most precise clock possible.
[17:45] <SpeedEvil> https://www.defensenews.com/space/2017/07/31/raytheons-new-gps-ground-stations-delayed-again/
[17:46] <SpeedEvil> russss: ?
[17:46] <SpeedEvil> russss: That is easily calculable given the GRACE gravity field results.
[17:46] <SpeedEvil> And a vanishingly small error component I'd have thought.
[17:46] <SpeedEvil> Yes, it's an offset, but it's a well known offset
[17:47] <russss> I think that is still handled by correcting the time from the ground
[17:47] <russss> the geoid model wasn't nearly as good when GPS was originally launched
[18:11] OLHZN (~Tory@cpe-66-66-13-40.rochester.res.rr.com) joined #highaltitude.
[18:33] OLHZN (~Tory@cpe-66-66-13-40.rochester.res.rr.com) left irc: Read error: Connection reset by peer
[18:48] OLHZN (~Tory@cpe-66-66-13-40.rochester.res.rr.com) joined #highaltitude.
[18:51] OLHZN (~Tory@cpe-66-66-13-40.rochester.res.rr.com) left irc: Read error: Connection reset by peer
[18:54] OLHZN (~Tory@cpe-66-66-13-40.rochester.res.rr.com) joined #highaltitude.
[18:57] OLHZN (~Tory@cpe-66-66-13-40.rochester.res.rr.com) left irc: Read error: Connection reset by peer
[18:58] <SpacenearUS> New position from 034Z7HKA-11 after 033 days silence - 12https://tracker.habhub.org/#!qm=All&q=4Z7HKA-11
[19:01] OLHZN (~Tory@cpe-66-66-13-40.rochester.res.rr.com) joined #highaltitude.
[19:31] gb73d (gb73d@88-106-135-204.dynamic.dsl.as9105.com) left irc:
[19:33] <SpacenearUS> New vehicle on the map: 03KD0HIP-7 - 12https://tracker.habhub.org/#!qm=All&q=KD0HIP-7
[19:37] es5nhc (~es5nhc@96-247-29-85.dyn.estpak.ee) left irc: Ping timeout: 240 seconds
[19:40] OLHZN (~Tory@cpe-66-66-13-40.rochester.res.rr.com) left irc: Read error: Connection reset by peer
[19:41] OLHZN (~Tory@cpe-66-66-13-40.rochester.res.rr.com) joined #highaltitude.
[19:56] OZ7EMA (~emanuel_@151.38.150.176) left irc: Quit: My MacBook has gone to sleep. ZZZzzz&
[20:02] OLHZN (~Tory@cpe-66-66-13-40.rochester.res.rr.com) left irc: Read error: Connection reset by peer
[20:11] happysat (~katpoep@s5594c83f.adsl.online.nl) left irc: Quit: Hunger-the-inner-diva
[20:14] <SpacenearUS> New vehicle on the map: 03KA9CQL-11 - 12https://tracker.habhub.org/#!qm=All&q=KA9CQL-11
[20:25] happysat (~katpoep@s5594c83f.adsl.online.nl) joined #highaltitude.
[20:37] SA6BSS-Mike|2 (~SA6BSS-Mi@155.4.14.14) joined #highaltitude.
[20:40] SA6BSS-Mike (~SA6BSS-Mi@h-155-4-222-217.NA.cust.bahnhof.se) left irc: Ping timeout: 250 seconds
[20:58] Glasstree (~Glasstree@82-71-48-195.dsl.in-addr.zen.co.uk) joined #highaltitude.
[21:13] <SpacenearUS> New vehicle on the map: 03PA0TGA-7 - 12https://tracker.habhub.org/#!qm=All&q=PA0TGA-7
[21:39] Hoogvlieger (~Hoogvlieg@541A8CEB.cm-5-3c.dynamic.ziggo.nl) joined #highaltitude.
[22:33] d33p3y35 (~d33p3y35@91-145-163-242.internetia.net.pl) left irc: Remote host closed the connection
[22:33] d33p3y35 (~d33p3y35@91-145-163-242.internetia.net.pl) joined #highaltitude.
[23:13] Glasstree (~Glasstree@82-71-48-195.dsl.in-addr.zen.co.uk) left irc: Quit: Leaving
[23:35] chris_99 (uid26561@gateway/web/irccloud.com/x-polkbwmduyyfhqsl) left irc:
[00:00] --- Sat Jan 12 2019