Skip to content

Satellite & telemetry

Telemetry — satellite data, vehicle GPS streams, IoT sensor feeds, space-weather measurements — is Bindu’s strongest use case. The data is sequential, the underlying state changes slowly in small deltas against a stable baseline, and the workload is dominated by transmission cost rather than storage. All three are exactly what Bindu’s symbolic delta encoding is built for.

Most telemetry signals look like this: a stable baseline, plus small deviations that accumulate over time. A satellite watches a section of sky; for hours, almost nothing changes. Then an asteroid moves through, and a small delta encodes the movement. The next hour, almost nothing changes again.

Traditional byte-level compressors don’t know this. They re-discover the stable baseline on every block, fingerprint it, and store a fresh reference. Bindu encodes the baseline once into the symbol table, then ships only the deltas — which on telemetry data are short, frequent, and highly compressible.

The result: Bindu hits high-90s % compression on real telemetry where conventional compressors land around 70–80%. On extreme cases (signals where the underlying state genuinely doesn’t move much), the ratios become absurd — see the industry benchmark for the measured 220×, 2,349×, and 263,314× cases.

Selected from the satellite/telemetry corpus measured in the industry benchmark:

SignalWhat it isBinduBest other codec
TEL_OMNI_EpochSun-Earth solar wind timestamps2,349×3.70× (xz)
TEL_OMNI_IMFInterplanetary magnetic field samples220×201× (bzip2)
TEL_MMS_flagMMS mission status flags263,314×112,849× (bzip2)
WX_GOES_Ch01GOES-16 weather channel 121.98×21.57× (bzip2)
SCI_ChandraChandra X-ray observatory7.41×7.16× (bzip2)
SSA_ADSBADS-B aviation tracking10.33×9.76× (bzip2)

These are SHA-256 round-trip verified — fully lossless. The pattern: Bindu wins every signal where the underlying state evolves in deltas against a stable baseline.

For these workloads, the dominant cost is transmission, not storage. Sending data down from a satellite, off a moving vehicle, or across a constrained sensor network typically runs around 3× the cost of storing the data once it arrives. Compute downstream is on top of that.

That changes how you should think about the value of compression:

  • A 12% reduction in size is a 12% reduction in transmission spend, which is a much larger absolute number than the equivalent storage saving.
  • Smaller payloads mean more bandwidth for everything else flying over the same channel.
  • Tightly-tuned compressors are small enough to deploy on the producing end (the satellite, the vehicle, the sensor), so the savings start at the transmitter, not at the storage system.

A general-purpose Bindu pipeline includes seven sub-pipelines for different classes of data structure (numbers, words, pictures, videos, plus auxiliary passes — see the Overview). Telemetry is sequential numeric data. Most of those sub-pipelines aren’t needed.

For a tightly-scoped deployment — a satellite that only ever produces one shape of data — the pipeline can be stripped down to just the numeric path. The resulting compressor is on the order of tens of bytes of in-software state, plus the binary itself. That’s small enough to put on the spacecraft.

The decompression side stays full-fat: the ground station runs the complete pipeline, the satellite runs only what it needs.

Once telemetry is compressed and on the ground, the computable property becomes the second value lever. You can:

  • Search the compressed archive for specific events (“every time the magnetometer flagged anomalous”).
  • Cross-compare sections across compressed files without decompressing any of them (“find every left turn at 30°” across a fleet of vehicles).
  • Compute over deltas directly. Many derived analyses — rate of change, smoothing, anomaly detection — operate naturally on the deltas the compressed form already contains. You don’t have to round-trip through raw data to ask the question.

Three line items get cheaper at once: the bytes you transmit, the storage they sit in, and the compute you spend reading them afterward.

The same delta-encoding story applies to anything sequential and slowly-changing:

  • Vehicle telemetry / fleet tracking. GPS coordinates, accelerometer streams, OBD-II readings.
  • IoT sensor networks. Temperature, humidity, pressure sensors that report at regular intervals.
  • Wearable / health data. Heart rate, respiratory rate, accelerometer streams from devices that sample steadily over time.
  • Industrial control telemetry. SCADA-style streams from manufacturing or process control.

The pattern across all of them: stable baseline, small deltas, transmission cost dominates storage cost.

  • Sample noise can hide structure. If the data is noisy enough that the deltas aren’t small, the symbol table grows fast and ratios drop. Pre-filter or smooth upstream where appropriate.
  • Heterogeneous channels in one file. If you mix telemetry from many independent signals into one stream without delineation, the symbol table has to cover all of them at once. Partition by signal where you can.
  • One-off compressions vs. session compressions. A single small file pays the symbol-table bootstrap cost once. For maximum ratio on telemetry, run as a session over many files so the symbol table amortizes.
  • Benchmarks — measured numbers across the satellite/telemetry corpus.
  • Overview — the cascade and the computable-compression framing.