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The Planetary Society Blog

By Emily Lakdawalla

Some context for the "Sol 0" images

May. 26, 2008 | 08:42 PDT | 15:42 UTC

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This is a really cool image, put together by Doug Ellison, giving some context for the photos that the lander took of itself yesterday.

Phoenix "Sol 0" images in context
In this mosaic, Doug Ellison has combined the images returned by Phoenix immediately after its landing (outlined in red) with a lander self-portrait taken by Phoenix during its pre-launch testing. Credit: NASA / JPL / U. Arizona / Texas A & M / Doug Ellison

The photos were taken to document the deployments of the solar panels, the bio-barrier around the robotic arm, the meteorological mast, and other stuff; if things hadn't gone well last night, the photos would not have matched the base image. But the match is perfect! The base image was taken from the Texas A & M website that has much more information about the Phoenix camera system.

I'm getting a slow start to the morning, but will be up at JPL for the press briefing currently scheduled for 11 am my time (18:00 UTC). I will probably show up in the Ustream channel off and on this morning as well. Stay tuned!

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Comments

Sol 0

Please tell me :
---------------
Must the day of the landers' descent on Mars
be called "sol 0" or must we call it "sol 1"?

Yours
Anthony

#1 - Anthony - 01/30/2010 - 07:07

It depends on the mission. Phoenix called their first sol Sol 0, but the rovers called it sol 1.

#2 - Emily Lakdawalla - 01/30/2010 - 08:05

Sol 0

Dear Emily,

thank you for answering !

Yes, I already had noticed, that there are
two different denominations for the first
day on Mars: "Sol 0" and "Sol 1"

But, WHY are there 2 different denominations at all?
Mustn't that cause difficulties and mistakes in counting and calculating ?

Yours sincerely

Anthony

#3 - Anthony - 01/28/2011 - 04:57

Sol 0

Can anyone tell me,
whether there are these two different denominations for the day of descent
on Mars ?
And which terminus is the right one:
"Sol 0" or "Sol 1" ?

#4 - Sol 0 - 02/01/2011 - 01:48


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