LEO Express 2 beside IRIDE-MS1-Eaglet-2-3
A satellite of IMPUL moved up beside a satellite of ASI, 34 km away at the nearest, and left after 2 days 10 h.
Left · the one that moved opened the distance on September 28, 2026
- Nearest
- 34.4 km
- Sep 26 · 4:09 AM UTC
- Beside for
- 2 days 10 h
- Sep 25, 5:07 PM to Sep 28, 3:29 AM UTC
- Took to come beside
- 69 days
- same plane Jul 18, same height Jul 21
- Orbit
- LEO
- low Earth orbit
Whether IMPUL or ASI has said what this rendezvous was is not recorded yet. What others said is below; this page draws no conclusion.
The stages
Each step is one of Space-Track’s element sets, run through SGP4 and set against the other’s. A stage is raised by one set and confirmed when a later one agrees.
published Jul 19, 12:26 AM UTC
Same plane seen
LEO Express 2’s orbit was found in IRIDE-MS1-Eaglet-2-3’s plane, 0.091° off, and 16.1 km lower.
Δa −16.07 km · θ 0.091°
published 10:26 AM UTC
Same height seen
LEO Express 2’s orbit had come to within 3.77 km of IRIDE-MS1-Eaglet-2-3’s height.
10,037.09 km · Δa −3.77 km · θ 0.020°
published Sep 26, 12:26 AM UTC
Beside raised
A set placed LEO Express 2 beside IRIDE-MS1-Eaglet-2-3. One set raises it; a later one must agree.
99.47 km · 40.1 km a day later · Δa −1.03 km · θ 0.066°
published 7:06 AM UTC
Beside confirmed
A later set agreed: LEO Express 2 stayed beside IRIDE-MS1-Eaglet-2-3.
34.37 km · 105.1 km a day later · Δa −1.01 km · θ 0.067°
published 11:08 AM UTC
Left raised
A set saw LEO Express 2 moving away from IRIDE-MS1-Eaglet-2-3. One set raises it; a later one must agree.
245.59 km · 385.5 km a day later · Δa −0.97 km · θ 0.072°
published 11:08 AM UTC
Left confirmed
A later set agreed: LEO Express 2 had left IRIDE-MS1-Eaglet-2-3.
255.02 km · 393.2 km a day later · Δa −0.99 km · θ 0.071°
Reported elsewhere
No report elsewhere names this rendezvous yet.
Every verdict as numbers
| Stage | State | Set epoch (UTC) | Published (UTC) | Distance | A day later | Δa | θ | Exclusion |
|---|---|---|---|---|---|---|---|---|
| Same plane | seen | 2026-07-18 18:07:24 | 2026-07-19 00:26:31 | −16.07 km | 0.0915° | |||
| Same height | seen | 2026-07-21 06:00:02 | 2026-07-21 10:26:54 | 10,037.09 km | −3.77 km | 0.0202° | ||
| Beside | raised | 2026-09-25 17:07:06 | 2026-09-26 00:26:23 | 99.47 km | 40.10 km | −1.03 km | 0.0662° | |
| Beside | confirmed | 2026-09-26 04:09:40 | 2026-09-26 07:06:41 | 34.37 km | 105.15 km | −1.01 km | 0.0672° | |
| Left | raised | 2026-09-28 03:29:44 | 2026-09-28 11:08:41 | 245.59 km | 385.49 km | −0.97 km | 0.0724° | |
| Left | confirmed | 2026-09-28 05:03:51 | 2026-09-28 11:08:41 | 255.02 km | 393.23 km | −0.99 km | 0.0709° |
Δa is the semi-major axis of the one that moved less the other’s; θ is the angle between the two orbits’ planes. A day later is where the set puts the two 24 hours on, with no further manoeuvre. An exclusion tag on any verdict would keep the pair off the list.