Crossfilter selection

A test MySQL FITS image database is queried for objects via a simple PHP script. The sample is downloaded as a text JSON string containing ~20000 objects. These objects are then manipulated and sorted in client's browser with the help of the Crossfilter javascript library. Range of values can be selected with the interactive plots made with D3.js.

  • No data
  • Selected : - /-

Equatorial coordinates

RA (deg)
DEC (deg)

Galactic coordinates

Galactic latitude (deg)
Galactic longitude (deg)

Exposure time and seeing

Exposure time (s)
Seeing (arcsec)

Observation time

Hour of Day

Pie-chart view

Select a field to display on the pie chart :

Selection list

Selected file is :

FITS image viewer