Scan center not updated during scan

[AlexKurek]

The scan centre is not updated during the scan:
https://github.com/MITHaystack/srt-py/blob/master/srt/daemon/daemon.py#L183
The sky is moving at 0.251 deg/min, so this can cause the Gaussian maximum to drift out of position.

[AlexKurek]

in case of Sun:

first scan_center: (173.53390817568615, 43.42817382314519)
0 of 25 point scan.
current ephemeris_locations: (173.53390817568615, 43.42817382314519)
[...]
24 of 25 point scan.
current ephemeris_locations: (177.652692835991, 43.57928298515246)

For a test object close to STOW:

and when I move scan_center = self.ephemeris_locations[object_id] inside the loop:

This is how much the object moves during the scan:

and when I move scan_center = self.ephemeris_locations[object_id] inside the loop:

Zoom:

It shows that the integration time and sleewing delay can be neglected.

[AlexKurek]

Fixed in: AlexKurek@c658cfe
This is how it looks now in my fork:

[AlexKurek]

The same for beam switch. Fixed in AlexKurek@9a35f6f.