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Perseverance

Michael
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Mars Perseverance Sol 1681: Right Mastcam-Z Camera – PD by NASA/JPL-Caltech/ASU

Day 18 of 30DayMapChallenge: « Out of this world » (previously).

Perseverance is still hiking…

library(dplyr)
library(sf)
library(ggplot2)
library(glue)
< section id="data" class="level2">

Data

Scraping Where is Perseverance?.

if (!file.exists("M20_waypoints.json")) {
  download.file("https://mars.nasa.gov/mmgis-maps/M20/Layers/json/M20_waypoints.json",
                "M20_waypoints.json")
}
perseverance <- read_sf("M20_waypoints.json")
< section id="map" class="level2">

Map

perseverance |> 
  ggplot() +
  geom_sf(aes(color = sol)) +
  scale_color_viridis_c() +
  labs(title = "Perseverance",
       caption = glue("data: https://science.nasa.gov/mission/mars-2020-\\
                       perseverance/location-map/
                       https://r.iresmi.net/ - {Sys.Date()}")) +
  theme(panel.background = element_rect(fill = NA),
        plot.background =  element_rect(fill = "sienna3",
                                        color = "sienna4"),
        text = element_text(color = "sienna4"),
        axis.text = element_text(color = "sienna4"),
        panel.grid = element_line(color = "sienna4"),
        legend.background = element_rect(fill = NA),
        plot.caption = element_text(size = 6))
Figure 1: Map of Perseverance itinerary on Mars

Don’t ask me about Mars datum or projections, I have no idea how it works…

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