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RAD instrument falls off
Acknowledged, NormalPublic

Description

In a certain instrument configuration on the medium rover, it is inevitable for the RAD instrument to fall off (and make the damage noise and cause a spark). Usually it is done by roving over small rocks or bumping into anything. Sometimes if the landing was too hard, the instrument would pop off. It happens every time the air bags tip over and the rover lands on its side. Most activities appear to be too tame to sever the instrument. No other instrument has been damaged with the type of driving that affects RAD.

Details

Legacy ID
2282768927
Severity
Minor
Resolution
Open
Reproducibility
Random
Steps To Reproduce

Use the configuration in the attached image and try driving or landing over rocks.

Additional Information

Top row: None, Environmental Monitor, Environmental Analysis
Bottom row: Mastcam (w/ cameras), RAD, high gain antenna

A hazcam and navcam are on the front and back of the rover with illumination in the middle. The arm contains the soil probe, illumination, and APXS.

Event Timeline

Infrared edited Steps To Reproduce. (Show Details)Aug 13 2013, 1:37 PM
Infrared edited Additional Information. (Show Details)
Infrared set Category to category:bugs.
Infrared set Reproducibility to Random.
Infrared set Severity to Minor.
Infrared set Resolution to Open.
Infrared set Legacy ID to 2282768927.May 9 2016, 9:52 AM
Krzysd added a subscriber: Krzysd.May 9 2016, 9:52 AM

Had the same problem, ive noticed if i put the RAD instrument on any place except the middle it doesn't fall off.

Also happens for me on the zero G probe... Falls off immediately during "launch". Didn't do it for my first rover, but has continued to do it consistently since I first noticed it.

Edit: just tried going to a save prior to when i first noticed this happen, and it works fine. exact same craft. something about game state causing this, perhaps?

Double Edit: And then, during that same test launch, it fell off again as soon as I applied any amount of roll to the craft.

Final Edit: I turned down the Physics Quality setting all the way, and suddenly it became (at the very least) more stable. the part jiggled all the way down to the ground, but by turning off auto-kill-translate and throttling it myself gently, I was able to descend intact.