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APXS not detecting target?
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I'm not sure if this is a bug or my incompetence, but I am unable to use the rover's APXS to analyse a sample of rock. Irrespective of how I line the rover up with the target, the message appears "no target in range", see attachment.


Legacy ID
No Bug

Event Timeline

Corminat0r set Category to category:bugs.Aug 7 2013, 6:17 PM
Corminat0r set Reproducibility to Always.
Corminat0r set Severity to None.
Corminat0r set Resolution to No Bug.
Corminat0r set Legacy ID to 1224719005.May 9 2016, 9:50 AM


the "problem" you are having is that you are facing the wrong way :)
By default the APXS is located on the front of the rover. Your rover is facing away from the rock. If you have placed your APXS on the back, its possible it cannot reach the rock because of the solar arrays.


I have tried this mission again (with the camera on the back), and there are still issues. I can get close enough for the APXS to start irradiating this time, but after it gets to about 1/4 of the way through the measurement, the measurement stops, and when I start it again I get the same error message "No target in range". I have to reverse the rover into the rock again, which results in the same bug stopping the measurement. This happened about 4 times before I reported it.

You have to be very close and completely still for it to work. I have found a few times that if Im on a slope or have a faulty wheel, the movement caused stops the APXS from working. Its not really a bug, its just that the equipment you are using requires you to be so close and very still.