Iran has access to China wide-ranging satellite network. The network delivers all-weather, day and night imaging (stills and video), SIGINT, and real-time updates on locations of aircraft and vessels. Real-time ELINT is indispensable for successful strikes.
Primer
I will assume some familiarity with ISR (Intelligence, Reconnaissance and Surveillance), satellites, and technical terms. If not, please read my September 2025 post, “China’s Eyes, Iran’s Fist: PLA’s Satellites & IRGC’s ‘Kill Chain’.”
PLA’s satellite network is multifaceted. Think of it as a big toolbox; each tool has specific uses: a Philips screwdriver cannot be used effectively where a flathead is required. Iran has a tiny “network” of sats. Iran’s drones monitor and image sea- and land-based assets, but in war, drones will be shot down. One Iranian drone is monitoring or searching for USS Abraham Lincoln. However, three sats or drones are ideal for triangulating moving targets for precise geolocation; and for feeding real-time—data transmission measured in milliseconds—info for targeting by sea cruise missiles.
I. Yaogan Family of Satellites
Yaogan (“Remote Sensing”) are diverse, military-dedicated models (16 LEO satellite models and 1 GEO model). As of 2 Feb 2026, 0730 UTC, 164 units are active (per NORAD database). Models have sundry capabilities: optical imaging, electro-optical (visible light and near infrared light), advanced optical imaging (e.g., multispectral and hyperspectral), infrared, SAR (all-weather, day/night radar), SIGINT (one subset of SIGINT is ELINT).
(a) Global Naval Tracking
Yaogan–9, –13, –17, –21, –31, and –41 series: ELINT sats for global maritime surveillance. The sats are launched as “triplets,” and operate as a team (of three) to harvest and geolocate electronic emissions (radio, radar, etc.). Triangulation is critical for geolocation. Orbit: ≈ 1,100km; inclinations: ≈ 63° (prograde) or ≈ 123° (retrograde). The high altitude is for global naval tracking; prograde and retrograde inclinations provide coverage at dissimilar local times.
(b) Regional Naval Tracking
Yaogan–30: SIGINT sats for regional maritime surveillance, also launched as triplets. They have lower altitudes, allowing for quick revisits to the region. To illustrate, one set of triplets, NORAD ID Nos. 43081, 43082, 43083 (Yaogan triplets have sequential NORAD identifiers, making them easy to identify) are at perigee, 565.1km; apogee, 570.9km; inclination: 35.0°; with revisit time of 95.9 mins (i.e., the triplets deliver intermittent coverage until another set of triplets covers; then the trio return in the 95.9 min revisit window). More triplet sets at 35.0°, 95.9 min revisit rate, and similar apogee and perigee include NORAD Nos. 44449, 44450, and 44451; 44460, 44461, and 44462; 46807, 46808, and 46809 (there are surely more triplets; check for yourself at N2YO.com or CelesTrak.org). This setup—multiple sets of triplets—is ideal for 24/7 coverage of the Mideast.
II. Gaofen and Jilin Families
Gaofen, “High resolution,” is for just that. As of 2 Feb 2026, 0730 UTC, 78 Gaofen sat units are active according to the NORAD database. NB: Gaofen is sometimes listed as “Jilin-1 Gaofen.” This is a (typical) cataloging error: Jilin–1 is a different imaging constellation. Minus Jilin-1, there are 35–45 Gaofen units. For brevity, I will focus here on Jilin-1.
There are 117 active Jilin–1 units (2024 data; higher today). China plans to have 300+ Jilin–1 units in space by 2027. One launch mission in 2022 deployed 41 Jilin–1 sats.
Jilin–1 operate in clusters (5–10 units working as a team). Features include panchromatic imaging (single-band; combines visible and infrared light; 50–75cm high-resolution, grayscale); multispectral (multi-band, 2–3m low-resolution, color); 92–120 cm high-resolution 4K HD video (10 fps; 30–120 second clips); all weather imaging.
Jilin-1 are placed in low orbit (≈ 535km), 97°-97.5° inclination (“Sun-Synchronous Orbit”; SSO): they do not “sleep” (save power) at night, but continually image earth (day & night). Clusters deliver global coverage. Jilin-1 clusters can be tasked to revisit a region daily or several times daily. They are agile: sats tilt and maneuver to capture the best images. Clusters allow for multi-tasking and “persistent coverage” (24/7/365). Ideal for tracking ships day or night.
Intel Sharing
Discussed in essay, “China’s Eyes, Iran’s Fist: PLA’s Satellites & IRGC’s ‘Kill Chain’,” and summarized in Tables 4 and 5. Only China has the sophisticated “toolbox” of sats that can support Iran. Russia’s sat network is small and includes old models (some from the Jurassic age). Lotos-S (ELINT sat), 4 units; and Pion-NKS (Naval SIGINT & SAR), 2 units, are at 67.1°–67.2° inclinations to cover threats to Russia’s north, east, and west: Artic, N. America, Atlantic, N. Pacific, Europe. The two “Pion-NKS” sats (NORAD ID Nos. 48865 & 54383) do not cover the Mideast.
Last Word
US also uses satellites for ELINT, but it deploys aircraft like the RC-135V Rivet Joint to provoke Iranian air defenses into firing up fire-control radars so that air defense locations and electronic fingerprints can be captured. Iranian drone flights near USS Abraham Lincoln are for the same purpose, allowing for China’s sats and Iran’s drones to harvest electronic emissions.
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