Using Data Recorder and Mass Addition is far less than ideal for a timer. A better way is a Python timer from @AndersDeleuran:
In the process of composing this reply, however, I’ve just discovered an interference anomaly when a conventional GH Timer is added to the model and connected to a slider; there is no effect if the Timer is disabled or disconnected from the slider:
GHPython_Timer_interference.gh (6.0 KB)
In fact, if you have two Python timers on the canvas, both are affected by the shorter interval of the two. 
P.S. Here is a way to use it in your model:
Obital Attractor_2020Mar4a.gh (14.4 KB)