DarkCast
0.5
Unusable
37/39 factors
00:43 UTC · Mar 03
78.5
Peak
Excellent in +33h
Wed Mar 04, 09:43 UTC
Sky Clarity
Fair
58
Significant cloud cover reducing visibility
Darkness
Poor
21
Significant light pollution or bright moon
Celestial
Poor
1
Sky too bright — sun near horizon
Conditions
Fair
57
Marginal weather conditions
Site
Coordinates
40.96, -119.58
Elevation
2008 m
Light Pollution
29.1 mag
Biggest Drags on Score
0.0
Celestial
0.0
Light Pollution
0.0
Weather
0.05
Transparency
0.17
Seeing
51
Transparency
24.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Fog Probability
GATE
|
1.0
|
0.00 — | 0.85 |
|
Wildfire Smoke Density
GATE
|
1.0
|
0.00 — | 0.82 |
|
Aod 550nm
|
0.94
|
0.03 — | 0.87 |
|
Ozone Column
|
0.9
|
235 DU | 0.94 |
|
Airglow Intensity
|
0.86
|
71.90 R | 0.6 |
|
Volcanic Aerosol Stratospheric
|
0.84
|
0.02 — | 0.69 |
|
Precipitable Water Vapor
|
0.83
|
8.43 mm | 0.85 |
|
Total Cloud Fraction
|
0.05
|
0.95 [0,1] | 0.67 |
|
Humidity Profile Extinction
RESIDUAL
|
0.63
|
0.26 — | 0.85 |
1
Celestial
15.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Lunar Sky Brightness Contribution
|
1.0
|
0.00 Δmag/arcsec² | 0.95 |
|
Aurora Activity
|
1.0
|
0.00 Kp [0-9] | 0.63 |
|
Zodiacal Light Intensity
|
0.97
|
0.03 — | 0.9 |
|
Solar Depression Angle
|
0.0
|
0.00 ° | 1.0 |
|
Galactic Plane Brightness
RESIDUAL
|
0.56
|
0.44 — | 0.95 |
26
Weather
14.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Precipitation Probability
GATE
|
1.0
|
0.00 — | 0.75 |
|
Frost Dew On Optics Risk
|
1.0
|
0.00 — | 0.85 |
|
Barometric Pressure Trend
|
1.0
|
-0.03 hPa/3hr | 0.85 |
|
Surface Wind Speed
|
0.56
|
17.48 km/h | 0.85 |
|
Ground Thermal Emission Phase
|
0.0
|
0.00 — | 1.0 |
|
Ambient Temperature Comfort
RESIDUAL
|
0.98
|
287 K | 0.89 |
|
Condition Stability Forecast
RESIDUAL
|
0.96
|
0.96 — | 0.85 |
|
Dew Point Convergence Rate
RESIDUAL
|
0.87
|
0.40 K/hr | 0.89 |
66
Seeing
20.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Boundary Layer Gradient
|
1.0
|
-2.00 K/km | 0.89 |
|
Terrain Turbulence Risk
|
0.78
|
0.22 — | 0.85 |
|
Jet Stream Speed
|
0.71
|
43.23 kt | 0.8 |
|
Scintillation Index Estimate
RESIDUAL
|
0.93
|
0.80 " | 0.89 |
|
Upper Atmosphere Wind Shear
RESIDUAL
|
0.59
|
20.51 kt | 0.8 |
|
Inversion Layer Strength
RESIDUAL
|
0.17
|
0.00 K | 0.89 |
21
Light Pollution
19.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Zenith Sky Brightness
|
1.0
|
29.12 mag/arcsec² | 0.9 |
|
Nearest City Skyglow
|
0.38
|
160 km | 0.85 |
|
Cloud Amplified Skyglow
RESIDUAL
|
1.0
|
0.00 Δmag/arcsec² | 0.67 |
|
Commercial Shutoff Factor
RESIDUAL
|
0.0
|
0.00 [0,1] | 0.6 |
87
Local
8.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Satellite Trail Density
|
1.0
|
0.00 tr/hr | 0.75 |
|
Local Aqi
|
0.97
|
6.02 AQI | 0.82 |
|
Horizon Obstruction Index
|
0.93
|
2.10 ° | 0.9 |
|
Site Elevation
|
0.8
|
2008 m AMSL | 1.0 |
|
Local Thermal Sources
|
0.7
|
0.30 — | 0.7 |
Site Characteristics
Elevation
2008 m
Horizon
2.1°
Light Pollution
29.1 mag
Nearest City
160.1 km
pop 329k
Nearest Water
83.3 km
Thermal Index
0.3
Roughness
0.14
Elev. Change
176 m
Coordinates
40.96, -119.58
Algorithm
WGM = 22.91
x
Gate = 0.02
=
0.5
/ 100
NSQI v0.3.0