ART-XC Visibility Planner

Catalogue source (optional)

Coordinate system

Coordinate format

RA, °

Dec, °

Start time, Moscow (UTC+3)

Forecast horizon

Or upload a CSV target list

CSV: name,ra,dec (FK5) or name,l,b (Galactic). CSV coordinate system and format are detected automatically.

Show sky map

Public visibility constraint: source–Sun separation 70.5°–130°. Sun coordinates are taken from spacecraft-based ballistic FITS. Visibility intervals are reported in Moscow time, to 1 hour, conservatively rounded inward.