jm + charts   15

APOLLO 13 EARTH ORBITAL CHART | Artsy
Some nice catalogue details around this Apollo 13 AEO:
Apollo Earth Orbit Chart (AEO), Apollo Mission 13 for April 1970 Launch Date. March 3, 1970. Color Earth map, first edition. 13 by 42 inches.

From the Catalogue:
SIGNED and INSCRIBED: “JAMES LOVELL, Apollo 13 CDR and FRED HAISE, Apollo 13 LMP." Additionally INSCRIBED by HAISE with mission events: "Launch at 2:13 pm EST, April 11, 1970" and "Splash – April 17, 1970." He has marked the splashdown area with an "X."

Circular plots in black represent the ground station communication coverage areas with the red circle being the tracking ship Vanguard in the Atlantic Ocean. Orbital paths show the full launch range azimuths of 72 to 108 degrees. The first orbit is plotted in light blue with the second orbit in dark blue. The planned TLI (TransLunar Injection) burn occurred on time during the mission and is plotted with a red dashed line. The point above the Earth as Apollo 13 headed toward the Moon is shown with a brown line and continues for 24 hours of mission elapsed time. This line moves over the Pacific Ocean and into the continental United States. Then it moves backwards (relative to the Earth’s rotation) over the Pacific Ocean and ends near the west coast of Africa. The Service Module explosion occurred some 32 hours after end point of the TLI brown line tracking plot.
aeo  apollo  history  spaceflight  collectibles  antiques  james-lovell  fred-haise  1970  apollo-13  charts 
19 days ago by jm
Plotly
Online chart maker for CSV and Excel data; make charts and dashboards online. One really nice feature is that charts made this way get permalinks, and can be easily inlined as PNGs or HTML5 divs. (See https://www.vividcortex.com/blog/analyzing-sparks-mpp-scalability-with-the-usl for an example.)
data  javascript  python  tools  visualization  dataviz  charts  graphing  web  plotly  plots  graphs 
january 2016 by jm
How Facebook avoids failures
Great paper from Ben Maurer of Facebook in ACM Queue.
A "move-fast" mentality does not have to be at odds with reliability. To make these philosophies compatible, Facebook's infrastructure provides safety valves.


This is full of interesting techniques.

* Rapidly deployed configuration changes: Make everybody use a common configuration system; Statically validate configuration changes; Run a canary; Hold on to good configurations; Make it easy to revert.

* Hard dependencies on core services: Cache data from core services. Provide hardened APIs. Run fire drills.

* Increased latency and resource exhaustion: Controlled Delay (based on the anti-bufferbloat CoDel algorithm -- this is really cool); Adaptive LIFO (last-in, first-out) for queue busting; Concurrency Control (essentially a form of circuit breaker).

* Tools that Help Diagnose Failures: High-Density Dashboards with Cubism (horizon charts); What just changed?

* Learning from Failure: the DERP (!) methodology,
ben-maurer  facebook  reliability  algorithms  codel  circuit-breakers  derp  failure  ops  cubism  horizon-charts  charts  dependencies  soa  microservices  uptime  deployment  configuration  change-management 
november 2015 by jm
Charted
Charted is a tool for automatically visualizing data, created by the
Product Science team at Medium. Give it the link to a data file and Charted returns a beautiful, shareable chart of the data.


Nice, but it's no graphite -- pretty basic.
charted  graphs  charts  ui  open-source  medium 
november 2014 by jm
MetricsGraphics.js - a library based on D3.js, optimized for visualizing and laying out time-series data
MetricsGraphics.js is a library built on top of D3 that is optimized for visualizing and laying out time-series data. It provides a simple way to produce common types of graphics in a principled, consistent and responsive way. The library currently supports line charts, scatterplots and histograms as well as features like rug plots and basic linear regression.
charts  javascript  timeline  visualization  time-series  d3 
november 2014 by jm
Bitcoin Mining Operating Margin
"The graph showing miners' revenue minus estimated electricity and bandwidth costs." -- down to -694% right now, oh dear
bitcoin  via:peakscale  economics  mining  profit  revenue  charts  electricity  bubble 
october 2013 by jm
gnuplot's dumb terminal
Turns out gnuplot has a pretty readable ASCII terminal rendering mode; combined with 'watch' it makes for a nifty graphing one-liner
gnuplot  plotting  charts  graphs  cli  command-line  unix  gnu  hacks  dataviz  visualization  ascii 
june 2013 by jm
21 graphs that show America’s health-care prices are ludicrous
Excellent data, this. I'd heard a few of these prices, but these graphs really hit home. $26k for a caesarean section at the 95th percentile!? talk about out of control price gouging.
healthcare  costs  economics  us-politics  world  comparison  graphs  charts  data  via:hn  america 
march 2013 by jm
FF Chartwell
OpenType font to display charts/graphs using ligatures. 'Designed by Travis Kochel, FF Chartwell is a typeface for creating simple graphs. Driven by the frustration of creating graphs within design applications and inspired by typefaces such as FF Beowolf and FF PicLig, Travis saw an opportunity to take advantage of OpenType technology to simplify the process. Using OpenType ligatures, strings of numbers are automatically transformed into charts. The data remains in a text box, allowing for easy updates and styling. It’s really easy to use; you just type a simple series of numbers like: ‘10+13+37+40’, turn on Stylistic Alternates or Stylistic Set 1 and a graph is automatically created.' (via Simon)
ligatures  via:sboyle  fonts  hacks  charts  dataviz  ui 
may 2012 by jm
spark
sparklines in your terminal window. Simply give it a comma or space-separated list of data values, and it'll generate an ANSI-graphics sparkline chart. Brilliant! (via mjd)
via:mjdominus  sparklines  charts  graphs  bash  shell  terminal  cli  ansi 
december 2011 by jm
Eirgrid System Demand
'The system demand displayed here represents the electricity production required to meet [Irish] national electricity consumption, including system losses, but net of generators' requirements. It includes power imported via the interconnector and an estimate of the power produced by wind generators, but excludes some non-centrally monitored generation (i.e. small scale CHP).' via Juan Flynn
via:juanflynn  eirgrid  national-grid  ireland  power  charts  statistics  from delicious
august 2010 by jm
dygraphs JavaScript Visualization Library
'an open source JavaScript library that produces produces interactive, zoomable charts of time series. It is designed to display dense data sets and enable users to explore and interpret them.' quite pretty
time-series  data  tsd  graphs  charts  javascript  via:reddit  dataviz  visualization  opensource  dygraphs  from delicious
december 2009 by jm

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