Please note, the image of the asteroid is not made from stacking but directly tracking. Each sub is of 30 seconds exposure.
This happened to become my first light project for the new mount, after I successfully built the tracking model and kept it in dry run for two nights from backyard. The sidereal tracking of the stars at the sky equator is close to 0.4" according to PHD, far beating my expectation. The RMS is 4.9 while the PA error is 67arcsec.
The tracking of this asteroid can further demonstrate its performance. Its 2022 fly-by makes it one of the closest asteroid / earth approaches of its size (1.3km in radius). With only 5LD from us, the tracking is rock solid for most of the time - ca 2 hours - locked firmly in the center of the FOV. Once it was under the tree and under 30deg in altitude, the object started to deviate from the center, which concluded its first adventure.
But the strange thing is the coordinates of the asteroid in MountWizzard4 show 2 deg off. AS backup, I used the data from
https://unistellaroptics.com/ephemeris to find the object.
All ephemeris data is calculated from
https://ssd.jpl.nasa.gov/horizons/app.html and interpolated in Excel before producing the annotation with Python.
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