Orbital Earth IR Albedo Flux Calculator

Space Thermal Environments: Calculate view factors ($F_{sc-E}$), Earth infrared flux ($q_{IR}$), and planetary albedo ($q_{alb}$) across orbital altitudes.

Orbit & Plate Orientation

Orbit Altitude $h$ (km):

Spacecraft Surface Orientation:

Solar Zenith Angle $\theta_z$ (°):

Earth Albedo Coefficient $a$:

Earth Mean IR Flux ($q_{IR0}$, $\text{W/m}^2$):

Solar Constant ($G_s$, $\text{W/m}^2$):

Incident Planetary Flux Results

Earth IR Flux

-- W/m²

Earth Albedo Flux

-- W/m²

View Factor $F_{sc-E}$

Total Planetary Influx

-- W/m²

Orbital Geometry & Angular Metrics

• Earth Angular Semi-Diameter ($\rho = \arcsin(R_E / r)$): --°

• Normalized Radius Ratio ($r / R_E$): --

• Direct Earth Horizon Angle: --°

• Orbital Period (Circular): -- min

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Orbital Earth IR Albedo Flux Calculator

Orbit & Plate Orientation

Incident Planetary Flux Results

Orbital Geometry & Angular Metrics

Frequently Asked Questions