DarkCast
5.0
Unusable
37/39 factors
00:54 UTC · Mar 03
29.0
Peak
Fair in +4h
Tue Mar 03, 04:54 UTC
Sky Clarity
Poor
34
Significant cloud cover reducing visibility
Darkness
Poor
14
Significant light pollution or bright moon
Celestial
Good
77
No moon or celestial interference
Conditions
Fair
58
Marginal weather conditions
Site
Coordinates
41.88, -87.63
Elevation
263 m
Light Pollution
17.4 mag
Biggest Drags on Score
0.0
Seeing
0.0
Light Pollution
0.0
Seeing
0.11
Local
0.22
Transparency
67
Transparency
24.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Fog Probability
GATE
|
1.0
|
0.00 — | 0.83 |
|
Wildfire Smoke Density
GATE
|
1.0
|
0.02 — | 0.82 |
|
Ozone Column
|
0.98
|
261 DU | 0.93 |
|
Airglow Intensity
|
0.86
|
71.90 R | 0.6 |
|
Precipitable Water Vapor
|
0.85
|
7.55 mm | 0.83 |
|
Aod 550nm
|
0.84
|
0.08 — | 0.87 |
|
Volcanic Aerosol Stratospheric
|
0.74
|
0.03 — | 0.69 |
|
Total Cloud Fraction
|
0.22
|
0.78 [0,1] | 0.65 |
|
Humidity Profile Extinction
RESIDUAL
|
0.78
|
0.15 — | 0.83 |
77
Celestial
15.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Aurora Activity
|
1.0
|
0.00 Kp [0-9] | 0.61 |
|
Zodiacal Light Intensity
|
0.98
|
0.02 — | 0.9 |
|
Solar Depression Angle
|
0.8
|
14.31 ° | 1.0 |
|
Lunar Sky Brightness Contribution
|
0.74
|
1.28 Δmag/arcsec² | 0.95 |
|
Galactic Plane Brightness
RESIDUAL
|
0.41
|
0.59 — | 0.95 |
77
Weather
14.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Precipitation Probability
GATE
|
1.0
|
0.00 — | 0.74 |
|
Frost Dew On Optics Risk
|
1.0
|
0.00 — | 0.83 |
|
Barometric Pressure Trend
|
0.89
|
-0.99 hPa/3hr | 0.83 |
|
Surface Wind Speed
|
0.74
|
10.31 km/h | 0.83 |
|
Ground Thermal Emission Phase
|
0.35
|
0.35 — | 1.0 |
|
Ambient Temperature Comfort
RESIDUAL
|
0.87
|
275 K | 0.88 |
|
Condition Stability Forecast
RESIDUAL
|
0.83
|
0.83 — | 0.83 |
|
Dew Point Convergence Rate
RESIDUAL
|
0.67
|
1.00 K/hr | 0.88 |
1
Seeing
20.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Boundary Layer Gradient
|
0.78
|
3.27 K/km | 0.88 |
|
Jet Stream Speed
|
0.43
|
85.05 kt | 0.79 |
|
Terrain Turbulence Risk
|
0.0
|
1.00 — | 0.83 |
|
Scintillation Index Estimate
RESIDUAL
|
1.0
|
0.50 " | 0.88 |
|
Inversion Layer Strength
RESIDUAL
|
0.25
|
0.95 K | 0.88 |
|
Upper Atmosphere Wind Shear
RESIDUAL
|
0.0
|
56.78 kt | 0.79 |
14
Light Pollution
19.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Nearest City Skyglow
|
0.97
|
3.59 km | 0.85 |
|
Zenith Sky Brightness
|
0.23
|
17.41 mag/arcsec² | 0.9 |
|
Cloud Amplified Skyglow
RESIDUAL
|
1.0
|
0.00 Δmag/arcsec² | 0.65 |
|
Commercial Shutoff Factor
RESIDUAL
|
0.0
|
0.00 [0,1] | 0.6 |
39
Local
8.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Local Aqi
|
0.76
|
47.60 AQI | 0.82 |
|
Satellite Trail Density
|
0.75
|
24.72 tr/hr | 0.75 |
|
Horizon Obstruction Index
|
0.74
|
7.88 ° | 0.9 |
|
Local Thermal Sources
|
0.7
|
0.30 — | 0.7 |
|
Site Elevation
|
0.11
|
263 m AMSL | 1.0 |
Site Characteristics
Elevation
263 m
Horizon
7.9°
Light Pollution
17.4 mag
Nearest City
3.6 km
pop 9.0M
Nearest Water
1.3 km
Thermal Index
0.3
Roughness
0.033
Elev. Change
86 m
Coordinates
41.88, -87.63
Algorithm
WGM = 22.33
x
Gate = 0.2219
=
5.0
/ 100
NSQI v0.3.0