Phil Stooke
Phil Stooke  路  last week

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My last map has a box labelled 'Fig. 175B'. Just a reminder that these are placeholders for figure numbers in a future project which I will be talking about later in the year.

Let's zoom in on that boxed area. This map shows the landing ellipse shown in a 2009 publication. A smaller box zooms in towards the landing site. A wrinkle ridge is just visible within it.

#maps #moon #luna17 #lunokhod1

Phil Stooke
Phil Stooke  路  last week

Content Warning

Finally that zoom-in sequence leads to this. Box A in the previous post refers to A here, which takes us to B with the lander itself. Box C in the previous post refers to box C here and the link to D, the rover's final parking place. Tracks from Lunokhod's wheels are visible around Luna 17 and the parked rover. We will be following the traverse in a set of maps like the Apollo EVA maps. But first, let's consider how we know where Luna 17 landed. #maps #moon#Luna17#Lunokhod1
Four maps which show the locations on the Moon of Luna 17 and Lunokhod 1. They follow the previous 3 posts, going from a broad region to a small area - the post before this - containing two boxes labelled A and C. That A refers to the top left map here, which leads to B, showing Luna 17 on the surface. That C leads to the bottom left map here which leads to D, showing Lunokhod 1. Wheel tracks are visible around the lander and rover.
Four maps which show the locations on the Moon of Luna 17 and Lunokhod 1. They follow the previous 3 posts, going from a broad region to a small area - the post before this - containing two boxes labelled A and C. That A refers to the top left map here, which leads to B, showing Luna 17 on the surface. That C leads to the bottom left map here which leads to D, showing Lunokhod 1. Wheel tracks are visible around the lander and rover.
Four maps which show the locations on the Moon of Luna 17 and Lunokhod 1. They follow the previous 3 posts, going from a broad region to a small area - the post before this - containing two boxes labelled A and C. That A refers to the top left map here, which leads to B, showing Luna 17 on the surface. That C leads to the bottom left map here which leads to D, showing Lunokhod 1. Wheel tracks are visible around the lander and rover.
Phil Stooke
Phil Stooke  路  last week

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Zooming in again we see the ridge very clearly. I will have something to say about it soon. Among the scattered craters are two more boxes. The lower one shows the position of the lander. The upper one shows the final resting place of the rover. I make sequences of maps like these so people can easily find a small spacecraft in a large image (LRO NAC images are 50,000 pixels long and 5000 pixels wide, that's a lot of pixels to search through).
#maps #moon #luna17 #lunokhod1
Phil Stooke
Phil Stooke  路  last week

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Now it's very clear where Luna 17 landed. we have LRO images good enough to show the lander and rover and the wheel tracks. But what did we know before LRO? My first Moon atlas came out before LRO (so it was swiftly rendered out of date and some of my speculation was shown to be wrong). This illustration shows what I thought about the landing site in about 2005 when I was doing that work. Tracking and orbit data gave us a position accurate to within about 10 km. #maps #moon#Luna17 #lunokhod1
Phil Stooke
Phil Stooke  路  last week

Content Warning

Here is that Soviet-era map. My shaded relief version, based on this, shows a large crater near the middle - the largest one in the map. Naturally I tied to match it to the orbital data. But it doesn't really exist if you check the LRO data, so I can use that as an excuse for not getting it right. Maybe it was a very subtle depression rather than a distinct crater. #maps #moon #luna17 #lunokhod1
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