Applet controls:
- Buttons:
- Step: takes a new observation
Reset: clear the data and image windows
- Pull down menu:
- sets the time elapsed between observations. You can
change this in the middle of your observations, if you'd like.
- Slider bars:
- These control the parameters of your fitted sinusoids. There
are four sets from top to bottom, one for each moon, and each
set consists of:
a:
the distance of the moon from Jupiter (this controls
the height, or amplitude, of the sine wave)
P:
the period of the moon's orbit (this controls the
period of the sine wave)
Shift:
this moves the whole sine wave to the left or
right, so you can align your sine wave with the
datasets (in the lingo, it's called a "phase" term)