To find a satellite, identify it in a public catalog, download its latest orbital elements, and use orbit-propagation software to estimate its position. To predict a pass over your location, provide the observer’s coordinates and a time window to an ephemeris or pass-prediction tool. These are calculated predictions from published tracking data—not live, continuous measurements—and public coverage is not complete.
How the public-data workflow works
- Identify the object. Search CelesTrak’s Satellite Catalog (SATCAT) by name or another known identifier, then check the available catalog fields to confirm it is the intended object.
- Retrieve recent orbital elements. Download the newest general-perturbation (GP) element set from CelesTrak or Space-Track. Space-Track defines GP as the newest SGP4 element set for each object it tracks.
- Choose a compatible format and propagator. Load the elements into software that supports their format and the matching SGP4 model. For a new workflow, prefer an OMM-compatible format.
- Calculate the position or pass. Propagate the elements to the time you care about. For an observer-specific pass, include the observer’s location and time interval.
- Check data age and refresh as needed. Compare the element epoch and retrieval time with the time of your prediction. Obtain newer elements when accuracy matters.
The calculation estimates where the object should be based on its published orbital data. It does not turn a catalog entry into a live position feed.
Find and verify a satellite in the catalog
Start with CelesTrak SATCAT. Search by the object’s name or a known identifier, then compare the catalog attributes available for the result rather than relying on a common name alone. SATCAT offers search and downloadable catalog data, and distinguishes tracked, restricted, and lost objects.
Coverage has limits: some objects monitored by the surveillance network are not listed in the public SATCAT at sufficient fidelity, and some catalog information may be restricted. If a search returns no match, that does not prove that the object does not exist.
Quick wins for a faster PC:
Scan for outdated or missing drivers - takes under a minuteDriver Scan →Repair Windows errors before they cause bigger problemsFix Now →#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Get orbital elements and choose a format
CelesTrak
CelesTrak provides current general-perturbation and supplemental orbital data alongside format documentation. Review its catalog and data-format information, including its usage policy, before automating retrieval.
Space-Track
Space-Track documentation describes GP as the newest SGP4 element set for each man-made Earth-orbiting object it tracks; its GP_History class provides historical ephemerides. Space-Track access requires a valid registered account. Its documented OMM-based output options include XML, KVN, JSON, CSV, and HTML.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Why new workflows should support OMM
The format issue is a limit of legacy fixed-width identifiers, not a blanket reason to discard every TLE. CelesTrak reports that the official USSF SATCAT exhausted five-digit catalog numbers on 2026-07-11. Its page says newly cataloged objects numbered 100000 or higher will not have GP data available in legacy TLE format. Space-Track likewise advises developers to migrate GP ephemeris workflows to OMM-based formats, which support larger identifiers.
Existing software may still work with TLE for lower-numbered objects. For a new implementation, confirm that both the data format and propagator support the full catalog-number range you need.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Turn orbital elements into a position or visible pass
Orbit-propagation software uses the element set and its epoch to calculate an estimated position at a chosen time. A pass prediction adds the observer’s location and time window so the output describes when the satellite may be above that particular location.
JPL Horizons documents user-supplied TLE input for artificial Earth-orbiting satellites and observer-oriented output. Horizons maintains trajectories for only a small subset of Earth-orbiting satellites, so users can supply TLE data for other objects. Users remain responsible for the resulting determination.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
- Object identity: Verify the catalog match before propagating its elements.
- Element freshness: Check the epoch and when the data was retrieved; refresh elements when the prediction needs to be current.
- Observer details: A sky pass depends on the observer’s location as well as the time interval.
- Prediction limits: The output is calculated from published orbital elements, and public data may be incomplete or restricted.
How much data is in the public catalog?
CelesTrak’s SATCAT snapshot at 2026-10-07 04:04:48 UTC listed 34,982 total cataloged objects, 17,193 active satellites, 12,644 objects with GP data, and 12,648 active satellites with SupGP data. These are timestamped catalog counts, not permanent totals; see the current SATCAT page for updated figures.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
