DarkCast
0.3
Unusable
37/39 factors
00:43 UTC · Mar 03
38.0
Peak
Fair in +8h
Tue Mar 03, 08:43 UTC
Sky Clarity
Poor
5
Significant cloud cover reducing visibility
Darkness
Poor
18
Significant light pollution or bright moon
Celestial
Good
82
No moon or celestial interference
Conditions
Fair
47
Marginal weather conditions
Site
Coordinates
39.93, -75.0
Elevation
26 m
Light Pollution
18.6 mag
Biggest Drags on Score
0.0
Transparency
0.0
Seeing
0.0
Light Pollution
0.01
Local
0.23
Seeing
6
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
|
1.0
|
290 DU | 0.94 |
|
Airglow Intensity
|
0.86
|
71.90 R | 0.6 |
|
Precipitable Water Vapor
|
0.79
|
10.66 mm | 0.85 |
|
Aod 550nm
|
0.77
|
0.11 — | 0.87 |
|
Volcanic Aerosol Stratospheric
|
0.63
|
0.04 — | 0.69 |
|
Total Cloud Fraction
|
0.0
|
1.00 [0,1] | 0.67 |
|
Humidity Profile Extinction
RESIDUAL
|
0.24
|
0.53 — | 0.85 |
82
Celestial
15.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Solar Depression Angle
|
1.0
|
21.83 ° | 1.0 |
|
Aurora Activity
|
1.0
|
0.00 Kp [0-9] | 0.63 |
|
Zodiacal Light Intensity
|
0.98
|
0.02 — | 0.9 |
|
Lunar Sky Brightness Contribution
|
0.65
|
1.77 Δmag/arcsec² | 0.95 |
|
Galactic Plane Brightness
RESIDUAL
|
0.56
|
0.44 — | 0.95 |
75
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
|
0.81
|
1.29 hPa/3hr | 0.85 |
|
Surface Wind Speed
|
0.75
|
10.16 km/h | 0.85 |
|
Ground Thermal Emission Phase
|
0.48
|
0.48 — | 1.0 |
|
Ambient Temperature Comfort
RESIDUAL
|
0.83
|
274 K | 0.89 |
|
Condition Stability Forecast
RESIDUAL
|
0.76
|
0.76 — | 0.85 |
|
Dew Point Convergence Rate
RESIDUAL
|
0.49
|
1.53 K/hr | 0.89 |
5
Seeing
20.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Jet Stream Speed
|
0.49
|
76.51 kt | 0.8 |
|
Boundary Layer Gradient
|
0.48
|
7.83 K/km | 0.89 |
|
Terrain Turbulence Risk
|
0.0
|
1.00 — | 0.85 |
|
Scintillation Index Estimate
RESIDUAL
|
1.0
|
0.50 " | 0.89 |
|
Inversion Layer Strength
RESIDUAL
|
0.25
|
0.95 K | 0.89 |
|
Upper Atmosphere Wind Shear
RESIDUAL
|
0.23
|
38.30 kt | 0.8 |
18
Light Pollution
19.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Nearest City Skyglow
|
0.87
|
15.47 km | 0.85 |
|
Zenith Sky Brightness
|
0.43
|
18.56 mag/arcsec² | 0.9 |
|
Cloud Amplified Skyglow
RESIDUAL
|
1.0
|
0.00 Δmag/arcsec² | 0.67 |
|
Commercial Shutoff Factor
RESIDUAL
|
0.0
|
0.00 [0,1] | 0.6 |
19
Local
8.0% weight| Factor | Normalized | Raw | Confidence |
|---|---|---|---|
|
Horizon Obstruction Index
|
0.99
|
0.27 ° | 0.9 |
|
Satellite Trail Density
|
0.86
|
14.40 tr/hr | 0.75 |
|
Local Aqi
|
0.73
|
54.21 AQI | 0.82 |
|
Local Thermal Sources
|
0.7
|
0.30 — | 0.7 |
|
Site Elevation
|
0.01
|
25.70 m AMSL | 1.0 |
Site Characteristics
Elevation
26 m
Horizon
0.3°
Light Pollution
18.6 mag
Nearest City
15.5 km
pop 5.5M
Nearest Water
7.1 km
Thermal Index
0.3
Roughness
0.015
Elev. Change
12 m
Coordinates
39.93, -75.0
Algorithm
WGM = 16.12
x
Gate = 0.02
=
0.3
/ 100
NSQI v0.3.0