Active Satellites In Orbit

By shrijeetverma13 · April 6, 2026

Real-time catalog of 14,875 active satellites currently orbiting Earth, from the CelesTrak space tracking platform using NORAD Two-Line Element (TLE)…

There are 495 satellites occupying near-geostationary orbits, defined as having a mean motion between 0.9–1.1 revolutions per day and an inclination less than 5 degrees.

The analysis identified major satellite constellations by extracting name prefixes from the dataset and filtering for groups with 50 or more satellites. A bar chart and data table were generated showing each constellation prefix alongside its satellite count, making it easy to compare the largest groups at a glance.

The analysis identified the top 20 satellites with the highest REV AT EPOCH values, which reflects the total number of orbits completed — a strong indicator of how long an object has been in orbit. A bar chart and data table have been generated showing these longest-serving satellites.

The analysis successfully identified the top launch entities based on the prefix of their OBJECT ID codes, revealing which organizations or countries have the most active satellites currently in orbit. A bar chart and data tables have been generated showing the top 20 launch entities ranked by satellite count.

The number of active satellites launched per year has shown a dramatic upward trend over the decades. A bar chart was generated showing launches from 1964 all the way through 2026, with the most significant growth happening in recent years. The peak year is 2025, which accounts for 4,329 active satellites — reflecting the explosive growth of mega-constellations like Starlink and OneWeb.

The analysis identified the top 20 satellites with the highest positive MEAN MOTION DOT values, which indicates the greatest risk of rapid orbital decay. A bar chart has been generated showing these satellites ranked by their MEAN MOTION DOT values, color-coded in red to highlight decay intensity. A data table is also available with details including Object ID, NORAD Catalog ID, Mean Motion, BSTAR drag coefficient, and inclination for each satellite.

The analysis successfully classified satellites in the dataset into four orbit types based on their MEAN MOTION (revolutions per day) and ECCENTRICITY values. Two visualizations were generated: a pie chart showing the proportional breakdown and a bar chart showing the raw counts for each orbit type (LEO, MEO, GEO, and HEO).

A total of 2,798 satellites operate in sun-synchronous orbits, defined by an inclination between 96° and 100°. A histogram has been generated showing the distribution of these satellites across that inclination range.

The analysis successfully identified satellites with extreme BSTAR values — those falling outside the 1st and 99th percentiles — which suggest unusual atmospheric drag or potential maneuvering behavior. Two visualizations were generated: a bar chart showing the top 30 satellites with the most extreme BSTAR values (color-coded from negative to positive), and a histogram showing the distribution of all extreme BSTAR satellites across the dataset.

The analysis identified 32 satellites in the dataset with an eccentricity greater than 0.5. A scatter plot was generated showing each satellite's eccentricity vs. inclination, with color coding by mean motion, allowing you to quickly spot orbital patterns. A detailed table was also produced listing each satellite's name, NORAD ID, eccentricity, inclination, mean motion, and BSTAR drag term.

The analysis reveals a clear dominance of medium inclination orbits in the satellite catalog. Two bar charts and a detailed histogram were generated showing the full distribution. The 30-60° band is by far the most populated with 9,450 satellites (63.5%), largely driven by large LEO constellations like Starlink (~53°) and navigation satellites like GPS (~55°). The second most common is the 90-100° Sun-synchronous/Polar band with 2,809 satellites (18.9%), used for Earth observation, weather, and mapping missions.

The overwhelming majority of satellites — 98.96% (14,721 out of 14,875) — operate in near-circular orbits with eccentricity below 0.01. Only 1.04% (154 satellites) follow more elliptical paths. A pie chart has been generated to visually illustrate this striking imbalance between the two orbit types.

A total of 2,830 satellites — representing 19% of the dataset — have inclinations greater than 90 degrees, which indicates they travel in retrograde orbits (opposite to Earth's rotation). Their inclinations range from 90.12° to 149.64°, with an average of 97.73°. Two charts were generated: a histogram showing the distribution of retrograde inclinations, and a bar chart highlighting the top 20 satellites with the highest retrograde inclinations.

The vast majority of satellites in the dataset have very recent tracking data. Out of 14,875 total satellites, 14,826 (99.7%) have EPOCH data that is 7 days old or newer, while only 49 (0.3%) have stale data older than 7 days. A bar chart has been generated showing the full distribution across freshness categories.

The analysis explored the density distribution of LEO satellites (those with mean motion between 11–16 rev/day) across different inclination bands. Two visualizations were generated: a bar chart showing satellite counts per 10-degree inclination band, and a detailed histogram of the full inclination distribution. These charts reveal how LEO satellites cluster at specific orbital inclinations.

The analysis compared orbital parameters across four eras of satellites, split by NORAD CAT ID quartiles. Recently cataloged satellites (NORAD CAT ID 64,274) show dramatically different orbital characteristics compared to legacy ones (NORAD CAT ID ≤ 52,908). A bar chart and multiple data tables were generated showing the average orbital parameters across all four eras.

The analysis identified 274 satellites showing both high atmospheric drag (BSTAR above 0.00178) and rapidly increasing orbital speed (MEAN MOTION DOT above 0.001625), placing them in the top 5% for both indicators — a strong signal of imminent reentry. Two visualizations were generated: a scatter plot showing all satellites with high-risk candidates highlighted in red, and a bar chart ranking the top 20 reentry candidates by BSTAR value colored by MEAN MOTION DOT intensity.