DarkCast
63.8
Good
37/39 factors
00:43 UTC · Mar 03
69.8
Peak
Good in +22h
Tue Mar 03, 22:43 UTC
Sky Clarity
Good
73
Good transparency, minimal haze
Darkness
Good
78
Very dark skies
Celestial
Good
76
No moon or celestial interference
Conditions
Fair
36
Risk of dew or frost on optics
Site
Coordinates
55.07, -4.63
Elevation
131 m
Light Pollution
24.7 mag
85
Transparency
24.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Fog Probability
GATE
|
1.0
|
0.24 — | 0.85 |
|
Wildfire Smoke Density
GATE
|
1.0
|
0.01 — | 0.82 |
|
Total Cloud Fraction
|
1.0
|
0.00 [0,1] | 0.8 |
|
Precipitable Water Vapor
|
0.9
|
4.89 mm | 0.85 |
|
Airglow Intensity
|
0.86
|
71.90 R | 0.6 |
|
Aod 550nm
|
0.82
|
0.09 — | 0.87 |
|
Ozone Column
|
0.75
|
356 DU | 0.94 |
|
Volcanic Aerosol Stratospheric
|
0.72
|
0.03 — | 0.69 |
|
Humidity Profile Extinction
RESIDUAL
|
0.7
|
0.21 — | 0.85 |
76
Celestial
15.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Solar Depression Angle
|
1.0
|
41.76 ° | 1.0 |
|
Aurora Activity
|
1.0
|
0.00 Kp [0-9] | 0.63 |
|
Zodiacal Light Intensity
|
1.0
|
0.00 — | 0.9 |
|
Lunar Sky Brightness Contribution
|
0.46
|
2.72 Δmag/arcsec² | 0.95 |
|
Galactic Plane Brightness
RESIDUAL
|
0.85
|
0.15 — | 0.95 |
37
Weather
14.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Precipitation Probability
GATE
|
1.0
|
0.00 — | 0.75 |
|
Surface Wind Speed
|
0.79
|
8.32 km/h | 0.85 |
|
Ground Thermal Emission Phase
|
0.72
|
0.72 — | 1.0 |
|
Barometric Pressure Trend
|
0.12
|
4.08 hPa/3hr | 0.85 |
|
Frost Dew On Optics Risk
|
0.06
|
0.94 — | 0.85 |
|
Dew Point Convergence Rate
RESIDUAL
|
1.0
|
0.00 K/hr | 0.89 |
|
Ambient Temperature Comfort
RESIDUAL
|
0.86
|
275 K | 0.89 |
|
Condition Stability Forecast
RESIDUAL
|
0.67
|
0.67 — | 0.85 |
62
Seeing
20.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Boundary Layer Gradient
|
0.88
|
1.88 K/km | 0.89 |
|
Terrain Turbulence Risk
|
0.83
|
0.17 — | 0.85 |
|
Jet Stream Speed
|
0.59
|
61.56 kt | 0.8 |
|
Scintillation Index Estimate
RESIDUAL
|
1.0
|
0.50 " | 0.89 |
|
Upper Atmosphere Wind Shear
RESIDUAL
|
0.55
|
22.30 kt | 0.8 |
|
Inversion Layer Strength
RESIDUAL
|
0.17
|
0.00 K | 0.89 |
78
Light Pollution
19.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Zenith Sky Brightness
|
1.0
|
24.65 mag/arcsec² | 0.9 |
|
Nearest City Skyglow
|
0.52
|
91.60 km | 0.85 |
|
Cloud Amplified Skyglow
RESIDUAL
|
1.0
|
0.00 Δmag/arcsec² | 0.8 |
|
Commercial Shutoff Factor
RESIDUAL
|
0.55
|
0.17 [0,1] | 0.6 |
34
Local
8.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Satellite Trail Density
|
0.99
|
1.20 tr/hr | 0.75 |
|
Horizon Obstruction Index
|
0.9
|
2.93 ° | 0.9 |
|
Local Aqi
|
0.9
|
19.97 AQI | 0.82 |
|
Local Thermal Sources
|
0.7
|
0.30 — | 0.7 |
|
Site Elevation
|
0.05
|
131 m AMSL | 1.0 |
Site Characteristics
Elevation
131 m
Horizon
2.9°
Light Pollution
24.7 mag
Nearest City
42.4 km
pop 69k
Nearest Water
22.7 km
Thermal Index
0.3
Roughness
0.126
Elev. Change
43 m
Coordinates
55.07, -4.63
Algorithm
WGM = 63.81
x
Gate = 0.9994
=
63.8
/ 100
NSQI v0.3.0