ECCN 7A004
NSMTAT'Star trackers' and components therefor, as follows .
What This ECCN Covers
ECCN 7A004 controls "star trackers" and components — instruments that determine spacecraft or vehicle attitude by measuring star positions — meeting defined azimuth-accuracy thresholds (for example 20 arc-seconds or better). Precise attitude determination is essential to satellites and guided systems, so the entry is controlled for National Security, Missile Technology, and Anti-Terrorism reasons.
Who needs to check this?
Manufacturers of star trackers and attitude-determination sensors for spacecraft, launch vehicles, and high-altitude platforms.
Compliance tip
Classification depends on the specified accuracy and operating conditions — verify your device against the entry thresholds. Because Missile Technology applies, license exceptions are generally unavailable; coordinate the classification with any spacecraft (9A004/9A515) or launch-vehicle obligations.
Items Covered
- a.'Star trackers' with a specified azimuth "accuracy" of equal to or less (better) than 20 seconds of arc throughout the specified lifetime of the equipment;
- b."Components" specially designed for equipment specified in 7A004.a as follows:
- 1. Optical heads or baffles;
- 2. Data processing units.
Control Reasons
Items controlled for national security reasons under multilateral export control regimes.
Items controlled under the Missile Technology Control Regime (MTCR).
Items controlled for anti-terrorism reasons. Most items on the CCL have AT controls.
Disclaimer
This information is for reference only. For official classifications, consult BIS or a qualified export control professional.