Satellite Line-of-Sight Distance Calculator
The Satellites Line-of-Sight Distance Calculator calculates the distance between two satellites in an orbital path. This distance is computed from the triangle formed by the center of the earth and the points of location of the two satellites.
The Circular Orbit Line-of-Sight Distance Calculator calculates the distance between two satellites traveling in a circular orbital path. In this calculation for the line-of-sight distance, we assume two satellites located at points ‘X’ and ‘Y’ in the orbit.
The Maximum Line-of-Sight Distance Calculator calculates the maximum distance between two satellites in an orbital path. This maximum distance occurs when the line joining the two satellites becomes tangent to the surface of the Earth. In this calculation of maximum distance, the distance between the two satellites from the Earth’s center is taken to be equal.
GNSS Constellations - A list of all GNSS satellites by constellations
beidou
| Satellite Name | Orbit | Date |
|---|
| BeiDou-3 G4 | Geostationary Orbit (GEO) | 17 May, 2023 |
| BeiDou-3 G2 | Geostationary Orbit (GEO) | 09 Mar, 2020 |
| Compass-IGSO7 | Inclined Geosynchronous Orbit (IGSO) | 09 Feb, 2020 |
| BeiDou-3 M19 | Medium Earth Orbit (MEO) | 16 Dec, 2019 |
| BeiDou-3 M20 | Medium Earth Orbit (MEO) | 16 Dec, 2019 |
| BeiDou-3 M21 | Medium Earth Orbit (MEO) | 23 Nov, 2019 |
| BeiDou-3 M22 | Medium Earth Orbit (MEO) | 23 Nov, 2019 |
| BeiDou-3 I3 | Inclined Geosynchronous Orbit (IGSO) | 04 Nov, 2019 |
| BeiDou-3 M23 | Medium Earth Orbit (MEO) | 22 Sep, 2019 |
| BeiDou-3 M24 | Medium Earth Orbit (MEO) | 22 Sep, 2019 |
galileo
| Satellite Name | Orbit | Date |
|---|
| GSAT0223 | MEO - Near-Circular | 05 Dec, 2021 |
| GSAT0224 | MEO - Near-Circular | 05 Dec, 2021 |
| GSAT0219 | MEO - Near-Circular | 25 Jul, 2018 |
| GSAT0220 | MEO - Near-Circular | 25 Jul, 2018 |
| GSAT0221 | MEO - Near-Circular | 25 Jul, 2018 |
| GSAT0222 | MEO - Near-Circular | 25 Jul, 2018 |
| GSAT0215 | MEO - Near-Circular | 12 Dec, 2017 |
| GSAT0216 | MEO - Near-Circular | 12 Dec, 2017 |
| GSAT0217 | MEO - Near-Circular | 12 Dec, 2017 |
| GSAT0218 | MEO - Near-Circular | 12 Dec, 2017 |
glonass
| Satellite Name | Orbit | Date |
|---|
| Kosmos 2569 | -- | 07 Aug, 2023 |
| Kosmos 2564 | -- | 28 Nov, 2022 |
| Kosmos 2559 | -- | 10 Oct, 2022 |
| Kosmos 2557 | -- | 07 Jul, 2022 |
| Kosmos 2547 | -- | 25 Oct, 2020 |
| Kosmos 2545 | -- | 16 Mar, 2020 |
| Kosmos 2544 | -- | 11 Dec, 2019 |
| Kosmos 2534 | -- | 27 May, 2019 |
| Kosmos 2529 | -- | 03 Nov, 2018 |
| Kosmos 2527 | -- | 16 Jun, 2018 |
gps
| Satellite Name | Orbit | Date |
|---|
| Navstar 82 | Medium Earth Orbit | 19 Jan, 2023 |
| Navstar 81 | Medium Earth Orbit | 17 Jun, 2021 |
| Navstar 78 | Medium Earth Orbit | 22 Aug, 2019 |
| Navstar 77 | Medium Earth Orbit | 23 Dec, 2018 |
| Navstar 76 | Medium Earth Orbit | 05 Feb, 2016 |
| Navstar 75 | Medium Earth Orbit | 31 Oct, 2015 |
| Navstar 74 | Medium Earth Orbit | 15 Jul, 2015 |
| Navstar 73 | Medium Earth Orbit | 25 Mar, 2015 |
| Navstar 72 | Medium Earth Orbit | 29 Oct, 2014 |
| Navstar 71 | Medium Earth Orbit | 02 Aug, 2014 |
irnss
| Satellite Name | Orbit | Date |
|---|
| NVS-01 | Geostationary Orbit (GEO) | 29 May, 2023 |
| IRNSS-1I | Inclined Geosynchronous Orbit (IGSO) | 12 Apr, 2018 |
| IRNSS-1H | Sub Geosynchronous Transfer Orbit (Sub-GTO) | 31 Aug, 2017 |
| IRNSS-1G | Geostationary Orbit (GEO) | 28 Apr, 2016 |
| IRNSS-1F | Geostationary Orbit (GEO) | 10 Mar, 2016 |
| IRNSS-1E | Geosynchronous Orbit (IGSO) | 20 Jan, 2016 |
| IRNSS-1D | Inclined Geosynchronous Orbit (IGSO) | 28 Mar, 2015 |
| IRNSS-1C | Geostationary Orbit (GEO) | 16 Oct, 2014 |
| IRNSS-1B | Inclined Geosynchronous Orbit (IGSO) | 04 Apr, 2014 |
| IRNSS-1A | Inclined Geosynchronous Orbit (IGSO) | 01 Jul, 2013 |
