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Journey to Mt Sharp - Part 3: Cooperstown to Kimberley - Waypoint 3, Sol 453 [Nov14,'13] to 595 [Apr9,'14]
Greenish
post Nov 18 2013, 05:04 PM
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James, that video is amazing, really impressive work. Somehow you managed to make the quality high enough and the motion smooth enough so that it really flows. Music choice works too!
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Phil Stooke
post Nov 18 2013, 05:15 PM
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I second that emotion!

Phil



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Ant103
post Nov 19 2013, 10:20 AM
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Sol 456 Navcam pan smile.gif



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James Sorenson
post Nov 19 2013, 10:36 AM
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Awesome Damia! smile.gif

Here is the Rear Hazcam view video from Landing all the way to Sol-456. Not as many images as the front Hazard camera of coarse, but my best attempt anyway. smile.gif

http://www.youtube.com/watch?v=5N-oxoQAmm4
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jvandriel
post Nov 19 2013, 12:04 PM
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The Mastcam L view on Sol 456.

Jan van Driel

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pospa
post Nov 19 2013, 12:09 PM
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Ken reports some issue with wheel stall and electrical problem during Sol 455.
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jvandriel
post Nov 19 2013, 12:43 PM
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The Mast cam L view on Sol 455.

Jan van Driel

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Greenish
post Nov 19 2013, 03:24 PM
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QUOTE (pospa @ Nov 19 2013, 08:09 AM) *
Ken reports some issue with wheel stall and electrical problem during Sol 455.

I wonder if that has anything to do with the funny route, or if that was planned. Per the curiositymsl.com* and Midnight Planets maps, the rover turned around and looped back more than a few meters, and is facing SE instead of SW as usual at the end of the drive. Per the speed/elevation plot, it looks like there were some steep slopes and higher speeds (including one spike) at first, then the second part of the drive was slower, and you can see where it retraces the elevation curve.

I try not to read too much into this preliminary telemetry data, but it's fun to try to figure out.

* I know the underlying terrain is getting out of sync with the map, for reasons Joe has explained elsewhere, but I am looking at the shape of the path, not the features underneath it.
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Greenish
post Nov 19 2013, 04:33 PM
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Here's a navcam stitch looking ENE, from about halfway through the loopback I mentioned in the previous post.
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Astro0
post Nov 21 2013, 01:48 AM
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Another view from Sol455.
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fredk
post Nov 21 2013, 03:08 AM
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Update on the electrical problem.
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CosmicRocker
post Nov 23 2013, 07:59 PM
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That update on the electrical problem has me a little confused. Maybe an engineer will add some clarifying comments.

If a device has a 32 volt bus, shouldn't the deltaV between the bus and the chassis be 32 volts in the absence of any soft shorts? The update mentions soft shorts that dropped the deltaV from 16v to 11v to 4v, but was there an earlier event that dropped the voltage from 32v to 16v? Or, is there something else I am missing that causes the deltaV between a 32v bus and a chassis to be only 16 volts?

Also, is it correct to suspect that with only a 4 volt margin remaining after 5 volt and 7 volt soft shorts, it is unlikely the electrical system can survive another, similar soft short?


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mcaplinger
post Nov 23 2013, 10:41 PM
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QUOTE (CosmicRocker @ Nov 23 2013, 12:59 PM) *
If a device has a 32 volt bus, shouldn't the deltaV between the bus and the chassis be 32 volts in the absence of any soft shorts?

The MSL bus is set up so the chassis ground is nominally halfway between the voltages of the battery and RTG terminals.


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Phil Stooke
post Nov 24 2013, 02:52 AM
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At last! Sol 462 - some new images are on the ground.

Phil


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djellison
post Nov 24 2013, 03:32 AM
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QUOTE (CosmicRocker @ Nov 23 2013, 11:59 AM) *
That update on the electrical problem has me a little confused.


Read up on 'Floating Bus'
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