6 ms·
Realtime telemetry from ISS internal components
- AriedK 3y agoCan anyone explain what the number before the timestamp is? GMT 66 / 43 / 41
- ins0 3y agoIt's the DayOfTheYear followed by Hours, Minutes and seconds in UTC.
- diggan 3y agoIs this the datetime format they use onboard on the ISS or why is it being used in this webui? This is the first time I come across this particular format, but also never near space-stuff so wouldn't surprise me if they use some specific format for some specific purpose.
- pyrolux 3y agoThat's very common in ISS operation schedules - next spacewalk is on GMT xx next launch on GMT xx, etc I expect it's easier and more useful to track days until event or days since event
- dr_orpheus 3y agoYes, using Day of Year for time GUIs and measurements is pretty common in spacecraft operations. Generally easier to do/plan operations for things like "we need to perform this maintenance activity every 5 days"
- dr_kiszonka 3y ago66 could be the day of the year.
- mmh0000 3y agoAs a date command format string: ``` $ date -u '+GMT %-j/%R:%S' GMT 66/17:05:57 ```
- orbital-decay 3y agoThis is being used to sync a 1:100 model of ISS with the actual station: https://github.com/ISS-Mimic/Mimic https://github.com/ISS-Mimic/Mimic
- auto 3y agoThis is incredibly cool!
- deleted 3y ago[deleted]
- pavinjoseph 3y agoIncredible! I wonder how much delay there is between the sensor data coming in to ISS, being relayed to NASA, fetched by these guys and forwarded to their model's actuators.
- close04 3y agoWhat's the reason behind using the "Off"/"Not-Off" notation for "on-off status" instead of "On"/"Off" or even "On"/"Non-On"? I see some "state" parameters marked as "ON".
- the-kenny 3y agoGuessing here: If you have a breaker switch after an additional switch, labelling the breaker with 'on/off' may be misleading as 'on' doesn't necessarily mean the connected device is powered. It may be off because the other switch is off.
- wolrah 3y agoReading this post led to one of those moments of realization about "no shutdown" in Cisco IOS and similar environments. The config file can't guarantee the interface will be up when it's loaded as that depends on external factors but it can guarantee the interface will not be shut down. I've used "no shutdown" as an example of illogical UI for decades because it seems backwards as the user, especially when new to IOS and trying to learn by exploring, but from this perspective it makes sense.
- justsomehnguy 3y ago> moments of realization about "no shutdown" in Cisco IOS and similar environments > but from this perspective it makes sense No, it's just a clunky way to remove the config line, it has nothing with the engineering safety. It's still better than Huawei's lingo, though.
- gregmac 3y agoCertain controls -- like valves or vent dampers -- are not binary. Even if normal operation is either fully-closed or fully-open, it can technically be anywhere in between. Having an absolute position sensor would tell you this, but is complex and expensive compared to having two binary state switches (fully-open vs fully-closed) which is also more expensive than a single state switch. Probably in many cases it just isn't worth it to instrument beyond the single state, especially if the affect of the control is being monitored (eg: flow, temperature, power). However, communicating the state as accurately as possible is important to avoid confusion ("This valve says ON, so that's not the problem" vs "I can see this valve is NOT OFF, but let's double check it's fully-on?").
- xtiansimon 3y agoSo where is the ‘leaky’ Soyuz module? Haha
- proaralyst 3y agoAll the leaky Soyuz spacecraft have returned to earth at this point The coolant leak: https://en.m.wikipedia.org/wiki/Soyuz_MS-22 https://en.m.wikipedia.org/wiki/Soyuz_MS-22 The air leak: https://en.m.wikipedia.org/wiki/Soyuz_MS-09 https://en.m.wikipedia.org/wiki/Soyuz_MS-09
- verytrivial 3y agoScott Manley reported three days ago about an apparently current, non-threatening leak https://youtu.be/MZgaLzYFCrU https://youtu.be/MZgaLzYFCrU at about the 18 minute mark if you're interested.
- Bnichs 3y agoOne of those values is "ISS total mass." Is that calculated using launch/deorbit weights or is there some kind of sensor on board that can measure that? I figure if you did a specific type of burn you could calculate the weight from that, but I'm wondering if they have something more clever.
- orbital-decay 3y agoIt's just an estimate and isn't that accurate. Yes, the closest you can get is orbit determination before and after the reboosts, and acceleration data.
- webdoodle 3y agoThe ISS uses Control moment gyroscopes to stabilize it's orientation. Couldn't those be used to calculate its mass? https://en.wikipedia.org/wiki/Control_moment_gyroscope#International_Space_Station https://en.wikipedia.org/wiki/Control_moment_gyroscope#Inter...
- dr_orpheus 3y agoNot its mass directly, but you can use it to calculate the moment of inertia. Move the CMGs a fixed angle and looking at the responding change in rate of the ISS. Mass can be determined from maneuvers when you fire the thrusters. Assuming you know the force from the thrusters very well (this has its own errors) you can look at the acceleration from the orbit determination before and after the thruster burns and back out the mass.
- Out_of_Characte 3y agoNot an expert but I think its possible, the problem is that the gyroscope alone wouldn't be sufficient. When the gyro rotates once, the massive spacecraft will obviously have rotated exactly once relative to the gyroscope. However if you could track the space station's rotation relative to an independend stationary observer in space (lets say an array of pulsar data), then you could count the amount of turns of both the gyro and the spacestation relative to the background of space. Then the amount of turns of the gyro times the mass of the gyro would give you the mass of the space station minus the independend floating objects. Meaning you'll need to add the mass of the gyro itself as well. Please correct me if i'm missing something obvious. This should work right?
- 9dev 3y agoI'm SO going to build a Grafana dashboard from that!
- malux85 3y agoI would love to see that!
- 9dev 3y agoSo, uh, I actually did. Built a small Prometheus exporter to read the official data stream, and ingest it in Grafana. Anyone up helping me create all the charts? It’s over 300 of them :D https://iss-metrics.9dev.de/public-dashboards/bccf319b13ff4b84ac3c5387b351996d https://iss-metrics.9dev.de/public-dashboards/bccf319b13ff4b...
- franky47 3y agoIt has a year field, when would that one be updated? Using UTC?
- world2vec 3y agoWhich NASA API/data feed is being used to get this telemetry?
- axus 3y ago"Several years ago, NASA provided some of the data to the public in order to spur interest in the ISS and space exploration under the ISSlive project (https://isslive.com/ https://isslive.com/) using the lightstreamer service (http://demos.lightstreamer.com/ISSLive/ http://demos.lightstreamer.com/ISSLive/)"
- AIorNot 3y agoCool to see this data still live! And on HN I was the lead on the ISSLive project that released this at NASA back in 2011 - we used an Ajax light streamer server to serve select (approved) space station telemetry parameters and astronaut schedules and we also Built mobile apps and a 3D website with an immersive Mission Control experience in Unity Sadly the sites lost funding - but glad to see the IssMimic project and data still available- as a former ISS flight controller I have fond memories of my time there More details on the original project here: https://youtu.be/xAhw_8B25N0?si=geMXrliwdKkt5fY8 https://youtu.be/xAhw_8B25N0?si=geMXrliwdKkt5fY8
- pyrolux 3y agoISS mimic team member here - if you're still in the Houston area I'd love to buy you a drink sometime Thanks for making ISSlive