Composed by Naman // Claude
GS. — A ground-station log
GK-2A full-disk timelapse: 116 frames across about twenty hours, 12 to 13 June 2026, decoded live from a parabolic dish in Mumbai.
Timelapse GEO-KOMPSAT-2A  ·  LRIT IR105  ·  116 full disks
12 to 13 June 2026  ·  one frame every 10 min across ~20 hours  ·  Sanchez-colorized Open the full timelapse ↗
Full-disk timelapse 12 to 13 June 2026

One dish, one satellite, one log.

A 3D-printed 60 cm parabolic dish, pointed at elevation 25°, azimuth 103° true. It receives one geostationary weather satellite and decodes the images live, as they come down.

On file
35
GK-2A
30
Polar
01
Pointing
103° / 25°
I

Frontier work

Four decodes in progress
II

The instruments

Three chains
Diagram Featured chain: the 3D-printed dish on GK-2A, live-decoded straight from the SDR. Two more instruments listed on the dedicated page.
Antenna · RF NAS · /satellite I 01 Reflector 600 mm 3D-printedparaboloid f/D 0.50 · 8 foil-on-papergores II 02 Feed Coax-fed linear dipole ~42 mm arms · Ø150 mmreflector III 03 Front-end SAWbird+ GOES at the feed LNA + SAW filter, NF ~0.8 dB IV 04 Receiver RTL-SDR Blog V4 cu8 · 1.024 Msps V 05 Decoder SatDump v2.0.0-α live · gk2a_lrit · imagesdirect VI 06 Composite Sanchez v1.0.26.1 blue underlay · haze 0.6

Each plate is the output of one of three configured chains, run end-to-end without intervention. When a node breaks, the chain stops and the log entry says where.  See all three instruments →

III

Operational log

Last 5 sessions

Latest session, 12 to 13 June 2026: a single continuous overnight run on the 3D-printed 60 cm dish in Mumbai, unattended, one RTL-SDR. 119 full-disk IR105 frames (116 kept in the timelapse, three dropped, an evening fade window repaired frame by frame), plus 13 KMA chart products and the day's operation plan off the same downlink. Decoded with SatDump, colorized with Sanchez. Recording stopped at the end of the session.

No. Captured Satellite Outcome Band SNR CADU Pipeline / Note
64 2026-07-14 · 13:00Z FENGYUN-2G Decoded L · · SatDump fengyun_svissr → counter correction → geometric circularisation → line repair by interpolation → visible/infrared LUT false colour
63 2026-07-14 · 06:00Z FENGYUN-2G Decoded L · · SatDump fengyun_svissr → counter correction → line repair by interpolation → visible/infrared LUT false colour
62 2026-06-15 · 17:00Z GEO-KOMPSAT-2A Decoded L · · SatDump gk2a_lrit (calibrated BT) → equirectangular reprojection → Blue Marble + borders
61 2026-06-15 · 09:51Z GEO-KOMPSAT-2A Partial L · 1353 KiB SatDump · auto-ingested from canonical.json
60 2026-06-13 · 07:20Z GEO-KOMPSAT-2A Decoded L · 323016 KiB SatDump v2.0.0-alpha · gk2a_lrit

Full log, 64 sessions on file →

Sessions are logged in the order they completed, failed captures included. SNR is post-DC-block baseband estimate, not link-budget margin. The full archive lives on the NAS at /satellite/.processed-iq-log.ndjson; this table is the daily-refreshed projection.