KAPPA Arc V3 · KAPPA Planner

CLICK MAP TO SET POINT

01 Application Mode

02 Observer → Target

POINT A — OBSERVER

LAT

LON

ELEV (m)

POINT B — TARGET

LAT

LON

ELEV (m)

03 Date & Time (UTC)

DATE

TIME UTC

04 Data Source

ERA5 L137 ELITE

137 model levels · auto-selected for LOS long range

AUTO

—

REFRACTION COEFFICIENT κ

—

κ REQUIRED

—

DEFICIT

—

DIST (km)

—

dN/dh (N/km)

—

C+R (m)

—

N AVG

▸ Refractivity Profile N(z)

▸ Thermal Layer Analysis

DATA SOURCE: — · KAPPA Arc V3

KAPPA PLANNER

Field Planning · 7-Day Forecast · All Application Modes

Set Locations on Map

Application Mode

Observer — Point A

LAT

LON

ELEV (m)

Target — Point B

LAT

LON

ELEV (m)

Planning Mode

📅

7-DAY FORECAST

GFS · Next 7 days

◈

SPECIFIC DATE

ERA5 L137 · Any date

GFS Real-Time · 7-day forecast · 4× daily updates

◎

Set locations to begin

LOS Planner analyses atmospheric conditions across 28 time windows over 7 days — finding your optimal photography window based on refraction, inversions, and visibility.