DarkCast
0.6
Unusable
37/39 factors
00:43 UTC · Mar 03
64.3
Peak
Good in +76h
Fri Mar 06, 04:43 UTC
Sky Clarity
Fair
36
Significant cloud cover reducing visibility
Darkness
Poor
25
Significant light pollution or bright moon
Celestial
Good
78
No moon or celestial interference
Conditions
Good
66
Good observing conditions
Site
Coordinates
35.9173, -82.2919
Elevation
825 m
Light Pollution
22.1 mag
Biggest Drags on Score
0.0
Transparency
0.0
Light Pollution
0.17
Transparency
0.26
Transparency
0.32
Seeing
5
Transparency
24.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Fog Probability
GATE
|
1.0
|
0.00 — | 0.85 |
|
Wildfire Smoke Density
GATE
|
1.0
|
0.03 — | 0.82 |
|
Ozone Column
|
0.95
|
249 DU | 0.94 |
|
Airglow Intensity
|
0.86
|
71.90 R | 0.6 |
|
Precipitable Water Vapor
|
0.69
|
15.73 mm | 0.85 |
|
Aod 550nm
|
0.61
|
0.19 — | 0.87 |
|
Volcanic Aerosol Stratospheric
|
0.26
|
0.07 — | 0.69 |
|
Total Cloud Fraction
|
0.0
|
1.00 [0,1] | 0.67 |
|
Humidity Profile Extinction
RESIDUAL
|
0.17
|
0.58 — | 0.85 |
78
Celestial
15.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Aurora Activity
|
1.0
|
0.00 Kp [0-9] | 0.63 |
|
Zodiacal Light Intensity
|
0.98
|
0.02 — | 0.9 |
|
Solar Depression Angle
|
0.92
|
16.57 ° | 1.0 |
|
Lunar Sky Brightness Contribution
|
0.71
|
1.44 Δmag/arcsec² | 0.95 |
|
Galactic Plane Brightness
RESIDUAL
|
0.36
|
0.64 — | 0.95 |
74
Weather
14.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Precipitation Probability
GATE
|
0.95
|
0.30 — | 0.75 |
|
Frost Dew On Optics Risk
|
0.94
|
0.06 — | 0.85 |
|
Surface Wind Speed
|
0.78
|
8.80 km/h | 0.85 |
|
Barometric Pressure Trend
|
0.54
|
2.24 hPa/3hr | 0.85 |
|
Ground Thermal Emission Phase
|
0.39
|
0.39 — | 1.0 |
|
Dew Point Convergence Rate
RESIDUAL
|
1.0
|
0.00 K/hr | 0.89 |
|
Ambient Temperature Comfort
RESIDUAL
|
0.91
|
277 K | 0.89 |
|
Condition Stability Forecast
RESIDUAL
|
0.82
|
0.82 — | 0.85 |
67
Seeing
20.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Boundary Layer Gradient
|
1.0
|
-2.00 K/km | 0.89 |
|
Terrain Turbulence Risk
|
0.82
|
0.18 — | 0.85 |
|
Jet Stream Speed
|
0.59
|
61.44 kt | 0.8 |
|
Scintillation Index Estimate
RESIDUAL
|
1.0
|
0.50 " | 0.89 |
|
Upper Atmosphere Wind Shear
RESIDUAL
|
0.44
|
27.97 kt | 0.8 |
|
Inversion Layer Strength
RESIDUAL
|
0.32
|
1.80 K | 0.89 |
25
Light Pollution
19.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Zenith Sky Brightness
|
1.0
|
22.09 mag/arcsec² | 0.9 |
|
Nearest City Skyglow
|
0.7
|
42.34 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 |
57
Local
8.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Horizon Obstruction Index
|
0.8
|
5.96 ° | 0.9 |
|
Satellite Trail Density
|
0.77
|
23.28 tr/hr | 0.75 |
|
Local Thermal Sources
|
0.7
|
0.30 — | 0.7 |
|
Local Aqi
|
0.7
|
60.72 AQI | 0.82 |
|
Site Elevation
|
0.33
|
825 m AMSL | 1.0 |
Site Characteristics
Elevation
825 m
Horizon
6.0°
Light Pollution
22.1 mag
Nearest City
44.3 km
pop 78k
Nearest Water
153.8 km
Thermal Index
0.3
Roughness
0.226
Elev. Change
149 m
Coordinates
35.9173, -82.2919
Algorithm
WGM = 30.21
x
Gate = 0.02
=
0.6
/ 100
NSQI v0.3.0