Solar Position
Location & Panel Geometry¶
To begin with, let's define the fundamental input parameters for our location of interest and a moment in time :
- Location : (Lon, Lat) = (8, 45)
- Elevation : 214 m
- A good, clear-sky day over our location is
2010-01-27 12:00:00.
Next, let us consider the basic geometry of a solar panel :
- Orientation of the panel : South which is 180 degrees counting clock-wise from due North.
- Tilt of the Panel : a horizontally flat panel which is 0 degrees.
Symbols
- The ∡ symbol means we are reporting an inclined component!
- The calculations include the atmospheric refraction (as described in Hofierka, 2002)
- The albedo is set to 0.2
- The Linke Turbidity is set to 2
On the Linke Turbidity
By default, PVGIS does not use any Linke Turbidity input when it gets to read solar irradiance components from external datasets, such as for example SARAH3 products.
EXPLAIN HERE MORE
Solar position¶
As a starting point, the command position, features a sub-command introduction which returns a text explaining the flow of calculations of the position of the sun and the agle between sun-rays and the solar collector surface.
Go ahead, try it out and skim through the text !
Note
Refer to the introduction to solar position how-to section.
Now that we have an overview, let's start with the basics :
Solar Position Overview
Time Declination ∢ Hour Angle Zenith ⦭ Altitude ⦩ Azimuth Incidence ⭸ Horizon ⛰ Sun-Horizon ⛰ Visible 👁
──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
2010-01-17 12:00:00 -20.904 6.297 66.923 23.077 185.881 22.442 0.0 Above True
⅀ / μ
╭─────────────────────────────────────────────────╮ ╭──────────────────────────────────────────────────────────────────────────────────────────────────────────────╮ ╭───────────────────────────────────────────────────────────────╮
│ Start Every End Zone │ │ Location Longitude ϑ, Latitude ϕ = 8.628, 45.812 Angular units radians │ │ - Loss ⦭ Zenith ⛰ Horizon 👁 Visible │
│ 2010-01-17 12:00 - 2010-01-17 12:00 UTC │ │ Position Surface Orientation ↻: 3.142, Surface Tilt ⦥: 0.785 │ │ ⏲ Timing ⦩ Altitude ↻ Orientation 🌅 Sunrise │
│ │ │ Definitions Azimuth origin : North, Incidence angle: Sun-Vector-to-Surface-Normal │ │ ∢ Declination Azimuth ⦥ Tilt 🮞 Shading │
│ │ │ Algorithms Timing: Milne1921, Positioning: NOAA, Unrefracted zenith: True, Incidence: Iqbal, Shading: PVGIS │ │ Hour angle ⯐ Positioning ⭸ Incidence │
╰─────────────────────────────────────────────────╯ ╰────────────────────────────────────────────────────────────────────────────────────────────────── Reference ─╯ ╰────────────────────────────────────────────────────── Legend ─╯
Info
The command
reads :
- execute
pvgis-prototypecommandpositionand sub-commandoverview - set
- the longitude to
8.628and the latitude to45.812 - the surface (panel) orientation to
180and the tilt to45degrees - the timestamp
2010-01-17 12:00
- the longitude to
- output the angle quantities in
degrees
Degrees or radians ?
By default, PVGIS returns angle figures measured in radians. This extra bit of -aou which is a shortcut for --angle-output-units is required to get the reported numbers in degrees. Without it :
Solar Position Overview
Time Declination ∢ Hour Angle Zenith ⦭ Altitude ⦩ Azimuth Incidence ⭸ Horizon ⛰ Sun-Horizon ⛰ Visible 👁
──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
2010-01-17 12:00:00 -0.365 0.11 1.168 0.403 3.244 0.392 0.0 Above True
⅀ / μ
╭─────────────────────────────────────────────────╮ ╭──────────────────────────────────────────────────────────────────────────────────────────────────────────────╮ ╭───────────────────────────────────────────────────────────────╮
│ Start Every End Zone │ │ Location Longitude ϑ, Latitude ϕ = 0.151, 0.8 Angular units radians │ │ - Loss ⦭ Zenith ⛰ Horizon 👁 Visible │
│ 2010-01-17 12:00 - 2010-01-17 12:00 UTC │ │ Position Surface Orientation ↻: 3.142, Surface Tilt ⦥: 0.785 │ │ ⏲ Timing ⦩ Altitude ↻ Orientation 🌅 Sunrise │
│ │ │ Definitions Azimuth origin : North, Incidence angle: Sun-Vector-to-Surface-Normal │ │ ∢ Declination Azimuth ⦥ Tilt 🮞 Shading │
│ │ │ Algorithms Timing: Milne1921, Positioning: NOAA, Unrefracted zenith: True, Incidence: Iqbal, Shading: PVGIS │ │ Hour angle ⯐ Positioning ⭸ Incidence │
╰─────────────────────────────────────────────────╯ ╰────────────────────────────────────────────────────────────────────────────────────────────────── Reference ─╯ ╰────────────────────────────────────────────────────── Legend ─╯
Let's note down the solar zenith angle (in radians) : 1.16802
Altitude and Azimuth¶
The two solar position angles of interest initially are the solar altitude (also referred to as solar elevation) and the solar azimuth.
We can identify them individually :
Solar Altitude Series
Time Altitude ⦩
──────────────────────────────────
2010-01-17 12:00:00 23.077
⅀ / μ
╭─────────────────────────────────────────────────╮ ╭───────────────────────────────────────────────────────────────────────────╮ ╭───────────────╮
│ Start Every End Zone │ │ Location Longitude ϑ, Latitude ϕ = 8.628, 45.812 Angular units Unitless │ │ ⦩ Altitude │
│ 2010-01-17 12:00 - 2010-01-17 12:00 UTC │ │ Definitions │ │ │
│ │ ╰─────────────────────────────────────────────────────────────── Reference ─╯ ╰────── Legend ─╯
│ │
╰─────────────────────────────────────────────────╯
and
pvgis-prototype position azimuth \
8.628 45.812 \
'2010-01-17 12:00:00' \
-aou degrees \
--solar-position-model noaa
Solar Azimuth Series
Time Azimuth
─────────────────────────────────
2010-01-17 12:00:00 185.881
⅀ / μ
╭─────────────────────────────────────────────────╮ ╭───────────────────────────────────────────────────────────────────────────╮ ╭──────────────╮
│ Start Every End Zone │ │ Location Longitude ϑ, Latitude ϕ = 8.628, 45.812 Angular units Unitless │ │ Azimuth │
│ 2010-01-17 12:00 - 2010-01-17 12:00 UTC │ │ Definitions Azimuth origin : North │ │ │
│ │ ╰─────────────────────────────────────────────────────────────── Reference ─╯ ╰───── Legend ─╯
│ │
╰─────────────────────────────────────────────────╯
Incidence angle¶
Nonetheless, the single-most important angle in the context of photovoltaics, is the solar incidence angle. Let's get it for a South-facing surface, tilted at 35 degrees
Solar Incidence
Time Incidence ⭸
───────────────────────────────────
2010-01-17 12:00:00 32.222
⅀ / μ
╭─────────────────────────────────────────────────╮ ╭─────────────────────────────────────────────────────────────────────────────╮ ╭────────────────╮
│ Start Every End Zone │ │ Location Longitude ϑ, Latitude ϕ = 8.628, 45.812 Angular units Unitless │ │ ⭸ Incidence │
│ 2010-01-17 12:00 - 2010-01-17 12:00 UTC │ │ Definitions Incidence angle: Sun-Vector-to-Surface-Normal Incidence: Iqbal │ │ │
│ │ ╰───────────────────────────────────────────────────────────────── Reference ─╯ ╰─────── Legend ─╯
│ │
╰─────────────────────────────────────────────────╯
!!! warning Orientation & Tilt angles
The `incidence` command requires a surface orientation and tilt angle (see
highlighted figures in the above example).
Missing to provide these parameters, would cause the command to fail.
The solar radiation model presented by Hofierka (2002), defines as solar incidence the angle between the sun-rays and the plane of the solar surface. Or else : the angle between the position of the sun and the inclination of the panel.
Typically, solar incidence is defined as the angle between the sun-rays and the normal to the reference surface. It is important to disinguish between the two, hence, in PVGIS we call the Sun-To-Plane the complementary incidence angle, where as the Sun-to-Surface-Normal we call it the typical incidence angle.
To get the typical solar incidence angle, one can use the optional flag --sun-vector-to-surface-normal (or even --sun-to-normal) like so :
pvgis-prototype position overview \
8.628 45.812 180 45 \
'2010-01-17 12:00' \
-aou degrees \
--sun-vector-to-surface-normal
Solar Position Overview
Time Declination ∢ Hour Angle Zenith ⦭ Altitude ⦩ Azimuth Incidence ⭸ Horizon ⛰ Sun-Horizon ⛰ Visible 👁
──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
2010-01-17 12:00:00 -20.904 6.297 66.923 23.077 185.881 22.442 0.0 Above True
⅀ / μ
╭─────────────────────────────────────────────────╮ ╭──────────────────────────────────────────────────────────────────────────────────────────────────────────────╮ ╭───────────────────────────────────────────────────────────────╮
│ Start Every End Zone │ │ Location Longitude ϑ, Latitude ϕ = 8.628, 45.812 Angular units radians │ │ - Loss ⦭ Zenith ⛰ Horizon 👁 Visible │
│ 2010-01-17 12:00 - 2010-01-17 12:00 UTC │ │ Position Surface Orientation ↻: 3.142, Surface Tilt ⦥: 0.785 │ │ ⏲ Timing ⦩ Altitude ↻ Orientation 🌅 Sunrise │
│ │ │ Definitions Azimuth origin : North, Incidence angle: Sun-Vector-to-Surface-Normal │ │ ∢ Declination Azimuth ⦥ Tilt 🮞 Shading │
│ │ │ Algorithms Timing: Milne1921, Positioning: NOAA, Unrefracted zenith: True, Incidence: Iqbal, Shading: PVGIS │ │ Hour angle ⯐ Positioning ⭸ Incidence │
╰─────────────────────────────────────────────────╯ ╰────────────────────────────────────────────────────────────────────────────────────────────────── Reference ─╯ ╰────────────────────────────────────────────────────── Legend ─╯
Time series¶
The power of overview is exactly its capability to generate time series.
It suffices to provide a start-time and an end-time :
pvgis-prototype position overview \
8.628 45.812 180 45 \
--start-time '2010-01-17 06:00:00' \
--end-time '2010-01-17 18:00:00' \
-aou degrees
Solar Position Overview
Time Declination ∢ Hour Angle Zenith ⦭ Altitude ⦩ Azimuth Incidence ⭸ Horizon ⛰ Sun-Horizon ⛰ Visible 👁 Event 🌅 Event Time ⏲
────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
2010-01-17 06:00:00 -20.951 -83.682 100.617 -10.617 109.214 0.0 0.0 Below False
2010-01-17 07:00:00 -20.943 -68.685 90.835 -0.835 119.86 0.0 0.0 Below False Sunrise 07:02:07
2010-01-17 08:00:00 -20.935 -53.689 82.456 7.544 130.795 56.576 0.0 Above True
2010-01-17 09:00:00 -20.927 -38.692 75.342 14.658 143.013 43.501 0.0 Above True
2010-01-17 10:00:00 -20.92 -23.696 70.07 19.93 156.623 31.655 0.0 Above True
2010-01-17 11:00:00 -20.912 -8.7 67.152 22.848 171.55 23.203 0.0 Above True
2010-01-17 12:00:00 -20.904 6.297 66.923 23.077 185.881 22.442 0.0 Above True
2010-01-17 13:00:00 -20.896 21.293 69.411 20.589 201.079 29.967 0.0 Above True
2010-01-17 14:00:00 -20.888 36.29 74.324 15.676 214.917 41.47 0.0 Above True
2010-01-17 15:00:00 -20.88 51.286 81.172 8.828 227.372 54.428 0.0 Above True
2010-01-17 16:00:00 -20.872 66.283 89.196 0.804 238.289 67.57 0.0 Low angle True Sunset 16:07:09
2010-01-17 17:00:00 -20.864 81.279 98.975 -8.975 249.218 0.0 0.0 Below False
2010-01-17 18:00:00 -20.856 96.276 109.039 -19.039 259.32 0.0 0.0 Below False
⅀ / μ
╭─────────────────────────────────────────────────╮ ╭──────────────────────────────────────────────────────────────────────────────────────────────────────────────╮ ╭───────────────────────────────────────────────────────────────╮
│ Start Every End Zone │ │ Location Longitude ϑ, Latitude ϕ = 8.628, 45.812 Angular units radians │ │ - Loss ⦭ Zenith ⛰ Horizon 👁 Visible │
│ 2010-01-17 06:00 h 2010-01-17 18:00 UTC │ │ Position Surface Orientation ↻: 3.142, Surface Tilt ⦥: 0.785 │ │ ⏲ Timing ⦩ Altitude ↻ Orientation 🌅 Sunrise │
│ │ │ Definitions Azimuth origin : North, Incidence angle: Sun-Vector-to-Surface-Normal │ │ ∢ Declination Azimuth ⦥ Tilt 🮞 Shading │
│ │ │ Algorithms Timing: Milne1921, Positioning: NOAA, Unrefracted zenith: True, Incidence: Iqbal, Shading: PVGIS │ │ Hour angle ⯐ Positioning ⭸ Incidence │
╰─────────────────────────────────────────────────╯ ╰────────────────────────────────────────────────────────────────────────────────────────────────── Reference ─╯ ╰────────────────────────────────────────────────────── Legend ─╯
And what about every 30 minutes ? Ask this via the --frequency option :
pvgis-prototype position overview \
8.628 45.812 180 45 \
--start-time '2010-01-17 06:00:00' \
--end-time '2010-01-17 18:00:00' \
-aou degrees \
--frequency 30min
Solar Position Overview
Time Declination ∢ Hour Angle Zenith ⦭ Altitude ⦩ Azimuth Incidence ⭸ Horizon ⛰ Sun-Horizon ⛰ Visible 👁 Event 🌅 Event Time ⏲
────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
2010-01-17 06:00:00 -20.951 -83.682 100.617 -10.617 109.214 0.0 0.0 Below False
2010-01-17 06:30:00 -20.951 -76.182 95.736 -5.736 114.346 0.0 0.0 Below False
2010-01-17 07:00:00 -20.943 -68.685 90.835 -0.835 119.86 0.0 0.0 Below False Sunrise 07:02:07
2010-01-17 07:30:00 -20.943 -61.185 86.491 3.509 125.23 63.23 0.0 Above True
2010-01-17 08:00:00 -20.935 -53.689 82.456 7.544 130.795 56.576 0.0 Above True
2010-01-17 08:30:00 -20.935 -46.189 78.708 11.292 136.734 49.955 0.0 Above True
2010-01-17 09:00:00 -20.927 -38.692 75.342 14.658 143.013 43.501 0.0 Above True
2010-01-17 09:30:00 -20.927 -31.192 72.444 17.556 149.65 37.338 0.0 Above True
2010-01-17 10:00:00 -20.92 -23.696 70.07 19.93 156.623 31.655 0.0 Above True
2010-01-17 10:30:00 -20.92 -16.196 68.293 21.707 163.923 26.773 0.0 Above True
2010-01-17 11:00:00 -20.912 -8.7 67.152 22.848 171.55 23.203 0.0 Above True
2010-01-17 11:30:00 -20.912 -1.2 66.695 23.305 180.0 21.695 0.0 Above True
2010-01-17 12:00:00 -20.904 6.297 66.923 23.077 185.881 22.442 0.0 Above True
2010-01-17 12:30:00 -20.904 13.797 67.843 22.157 193.68 25.445 0.0 Above True
2010-01-17 13:00:00 -20.896 21.293 69.411 20.589 201.079 29.967 0.0 Above True
2010-01-17 13:30:00 -20.896 28.793 71.596 18.404 208.166 35.439 0.0 Above True
2010-01-17 14:00:00 -20.888 36.29 74.324 15.676 214.917 41.47 0.0 Above True
2010-01-17 14:30:00 -20.888 43.79 77.546 12.454 221.318 47.85 0.0 Above True
2010-01-17 15:00:00 -20.88 51.286 81.172 8.828 227.372 54.428 0.0 Above True
2010-01-17 15:30:00 -20.88 58.786 85.133 4.867 233.074 61.1 0.0 Above True
2010-01-17 16:00:00 -20.872 66.283 89.196 0.804 238.289 67.57 0.0 Low angle True Sunset 16:07:09
2010-01-17 16:30:00 -20.872 73.783 94.142 -4.142 244.024 0.0 0.0 Below False
2010-01-17 17:00:00 -20.864 81.279 98.975 -8.975 249.218 0.0 0.0 Below False
2010-01-17 17:30:00 -20.864 88.779 103.952 -13.952 254.282 0.0 0.0 Below False
2010-01-17 18:00:00 -20.856 96.276 109.039 -19.039 259.32 0.0 0.0 Below False
⅀ / μ
╭─────────────────────────────────────────────────╮ ╭──────────────────────────────────────────────────────────────────────────────────────────────────────────────╮ ╭───────────────────────────────────────────────────────────────╮
│ Start Every End Zone │ │ Location Longitude ϑ, Latitude ϕ = 8.628, 45.812 Angular units radians │ │ - Loss ⦭ Zenith ⛰ Horizon 👁 Visible │
│ 2010-01-17 06:00 30min 2010-01-17 18:00 UTC │ │ Position Surface Orientation ↻: 3.142, Surface Tilt ⦥: 0.785 │ │ ⏲ Timing ⦩ Altitude ↻ Orientation 🌅 Sunrise │
│ │ │ Definitions Azimuth origin : North, Incidence angle: Sun-Vector-to-Surface-Normal │ │ ∢ Declination Azimuth ⦥ Tilt 🮞 Shading │
│ │ │ Algorithms Timing: Milne1921, Positioning: NOAA, Unrefracted zenith: True, Incidence: Iqbal, Shading: PVGIS │ │ Hour angle ⯐ Positioning ⭸ Incidence │
╰─────────────────────────────────────────────────╯ ╰────────────────────────────────────────────────────────────────────────────────────────────────── Reference ─╯ ╰────────────────────────────────────────────────────── Legend ─╯
Maybe we want shorter figures ? We can limit the output numbers to 2 decimals :
pvgis-prototype position overview \
8.628 45.812 180 45 \
--start-time '2010-01-17 06:00:00' \
--end-time '2010-01-17 18:00:00' \
-aou degrees \
-r 2
Solar Position Overview
Time Declination ∢ Hour Angle Zenith ⦭ Altitude ⦩ Azimuth Incidence ⭸ Horizon ⛰ Sun-Horizon ⛰ Visible 👁 Event 🌅 Event Time ⏲
────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
2010-01-17 06:00:00 -20.95 -83.68 100.62 -10.62 109.21 0.0 0.0 Below False
2010-01-17 07:00:00 -20.94 -68.69 90.84 -0.84 119.86 0.0 0.0 Below False Sunrise 07:02:07
2010-01-17 08:00:00 -20.94 -53.69 82.46 7.54 130.79 56.58 0.0 Above True
2010-01-17 09:00:00 -20.93 -38.69 75.34 14.66 143.01 43.5 0.0 Above True
2010-01-17 10:00:00 -20.92 -23.7 70.07 19.93 156.62 31.65 0.0 Above True
2010-01-17 11:00:00 -20.91 -8.7 67.15 22.85 171.55 23.2 0.0 Above True
2010-01-17 12:00:00 -20.9 6.3 66.92 23.08 185.88 22.44 0.0 Above True
2010-01-17 13:00:00 -20.9 21.29 69.41 20.59 201.08 29.97 0.0 Above True
2010-01-17 14:00:00 -20.89 36.29 74.32 15.68 214.92 41.47 0.0 Above True
2010-01-17 15:00:00 -20.88 51.29 81.17 8.83 227.37 54.43 0.0 Above True
2010-01-17 16:00:00 -20.87 66.28 89.2 0.8 238.29 67.57 0.0 Low angle True Sunset 16:07:09
2010-01-17 17:00:00 -20.86 81.28 98.97 -8.97 249.22 0.0 0.0 Below False
2010-01-17 18:00:00 -20.86 96.28 109.04 -19.04 259.32 0.0 0.0 Below False
⅀ / μ
╭─────────────────────────────────────────────────╮ ╭──────────────────────────────────────────────────────────────────────────────────────────────────────────────╮ ╭───────────────────────────────────────────────────────────────╮
│ Start Every End Zone │ │ Location Longitude ϑ, Latitude ϕ = 8.63, 45.81 Angular units radians │ │ - Loss ⦭ Zenith ⛰ Horizon 👁 Visible │
│ 2010-01-17 06:00 h 2010-01-17 18:00 UTC │ │ Position Surface Orientation ↻: 3.14, Surface Tilt ⦥: 0.79 │ │ ⏲ Timing ⦩ Altitude ↻ Orientation 🌅 Sunrise │
│ │ │ Definitions Azimuth origin : North, Incidence angle: Sun-Vector-to-Surface-Normal │ │ ∢ Declination Azimuth ⦥ Tilt 🮞 Shading │
│ │ │ Algorithms Timing: Milne1921, Positioning: NOAA, Unrefracted zenith: True, Incidence: Iqbal, Shading: PVGIS │ │ Hour angle ⯐ Positioning ⭸ Incidence │
╰─────────────────────────────────────────────────╯ ╰────────────────────────────────────────────────────────────────────────────────────────────────── Reference ─╯ ╰────────────────────────────────────────────────────── Legend ─╯
Uniplot¶
We can also have just a visual overview via the --uniplot option along with --quiet to hide the tabular output :
pvgis-prototype position overview \
8.628 45.812 180 45 \
--start-time '2010-01-17 06:00:00' \
--end-time '2010-01-17 18:00:00' \
-aou degrees \
--quiet \
--uniplot
Uniplot
Solar Position observed from (longitude, latitude) 8.628, 45.812000000000005
┌────────────────────────────────────────────────────────────────────────┐
│ ▗▄▄▄▄▞▀▀│
│ ▗▄▄▄▄▀▀▀▀▘ │
│ ▄▄▄▄▀▀▀▀▘ │
│ ▄▄▄▞▀▀▀ │ 200 Unitless
│ ▗▄▄▞▀▀▀ │
│ ▗▄▄▄▀▀▀▘ │
│ ▄▄▄▄▀▀▀▘ │
│ ▄▄▄▄▞▀▀▀ │
│ ▗▄▄▄▄▞▀▀▀▀ │
│▀▘ │ 100 Unitless
│ │
│ ▄▄▄▖ │
│ ▄▀▀▄▄▄▄ ▄▄▄▄▀▀▀▀ ▝▄ │
│ ▄▀ ▀▀▀▀▄▄▄▄▄▖ ▗▄▄▄▄▄▀▀▀▀ ▚▖ │
│ ▗▀ ▗▄▄▄▄▄▄▄▞▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▄▄▄▄▄▄▄▖ ▝▄ │
│▄▄▗▄▄▄▄▄▀▀▀▀▀▀▘▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▝▀▀▀▀▀▀▄▄▄▄▄▖▚▄▄▄▄▄▄│ 0 Unitless
│▀▀▘ ▝▀▀▀▀▚▄▄│
└────────────────────────────────────────────────────────────────────────┘
06:00 12:00 18:00
██ NA Incidence (NA) ██ Altitude ⦩ ██ Azimuth
We can zoom-out in time to gain a better understanding of the solar positioning angles :
pvgis-prototype position overview \
8.628 45.812 180 45 \
--start-time '2010-01-17' \
--end-time '2010-01-18' \
-aou degrees \
--quiet \
--uniplot
Uniplot
Solar Position observed from (longitude, latitude) 8.628, 45.812000000000005
┌────────────────────────────────────────────────────────────────────────┐
│ ▗▄▜ │
│ ▗▄▀▘ ▝▖ │
│ ▄▄▄▀▀▘ ▌ │
│ ▗▄▄▄▞▀▀▀ ▌ │ 250 Unitless
│ ▄▄▄▞▀▀▀ ▐ │
│ ▗▄▄▞▀▀ ▐ │
│ ▄▄▞▀▘ ▌ │
│ ▗▄▄▞▀▀ ▌ │
│ ▄▄▄▀▀▘ ▚ │
│ ▄▄▄▞▀▀▀ ▐ │
│ ▄▄▄▞▀▀▀ ▝▖│
│ ▗▄▞▀▀ ▄ ▗▄▄▀▖ ▌│
│ ▗▄▀▘ ▗▀ ▀▀▀▄▄▄▖ ▄▄▄▞▀▀▘ ▝▖ ▌│
│▞▘ ▗▗▄▄▄▄▞▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▄▄▄▄ ▝▖ ▐│
│▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▄▄▞▀▀▀▘▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▀▀▀▀▄▄▄▖▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀│ 0 Unitless
│ ▗▄▄▄▞▀▀▀ ▝▀▀▀▄▄▄▄ │
│▄▄▄▞▀▀▀▘ ▀▀▀▀▄▄▄▄▄▄│
└────────────────────────────────────────────────────────────────────────┘
2010-01-17 2010-01-17T12:00 2010-01-18
██ NA Incidence (NA) ██ Altitude ⦩ ██ Azimuth