Taizhou beside CTC-1B
A satellite of ADA Space (Guoxing Aerospace Tech Co.) moved up beside an object of SpaceCoin/Space Telecommunications Inc., 2.0 km away at the nearest, and left after 8 days.
Unreported: no public report has named these two in the 90 days since the detector found them beside each other.
Left · the one that moved opened the distance on April 15, 2026
- Nearest
- 2.0 km
- Apr 7 · 10:06 PM UTC
- Beside for
- 8 days
- Apr 7, 10:06 PM to Apr 15, 11:31 AM UTC
- Orbit
- LEO
- low Earth orbit
- Last move
- Taizhou
- Apr 7 · 10:06 PM UTC
The one that moved
Taizhouname not yet certain
ADA Space (Guoxing Aerospace Tech Co.), CN
63986 · 2025-100E · launched May 14, 2025
The one it came up to
CTC-1Bname not yet certain
SpaceCoin/Space Telecommunications Inc., United States
66746 · 2025-276CJ · launched Nov 28, 2025
Whether ADA Space (Guoxing Aerospace Tech Co.) or SpaceCoin/Space Telecommunications Inc. 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 Apr 8, 3:22 AM UTC
Same plane seen
Taizhou’s orbit was found in CTC-1B’s plane, 0.001° off, and 0.06 km lower.
Δa −0.06 km · θ 0.001°
published Apr 8, 3:22 AM UTC
Same height seen
Taizhou’s orbit had come to within 0.06 km of CTC-1B’s height.
2.04 km · Δa −0.06 km · θ 0.001°
published Apr 8, 3:22 AM UTC
Beside raised
A set placed Taizhou beside CTC-1B. One set raises it; a later one must agree.
2.04 km · 9.1 km a day later · Δa −0.06 km · θ 0.001°
published Apr 8, 3:22 AM UTC
Move raised
A set showed Taizhou had moved, by 54.8 m/s.
2.04 km · 9.1 km a day later · Δa −0.06 km · θ 0.001°
published 6:56 AM UTC
Beside confirmed
A later set agreed: Taizhou stayed beside CTC-1B.
2.78 km · 9.3 km a day later · Δa −0.08 km · θ 0.001°
published 4:26 PM UTC
Left raised
A set saw Taizhou moving away from CTC-1B. One set raises it; a later one must agree.
211.98 km · 281.6 km a day later · Δa −0.59 km · θ 0.011°
published Apr 16, 12:16 AM UTC
Left confirmed
A later set agreed: Taizhou had left CTC-1B.
233.18 km · 306.3 km a day later · Δa −0.61 km · θ 0.011°
published Apr 21, 2:46 AM UTC
Move raised
A set showed one of the two had moved.
740.40 km · 1,037.8 km a day later · Δa +0.33 km · θ 0.018°
published 3:37 PM UTC
Move raised
A set showed one of the two had moved.
972.77 km · 1,459.2 km a day later · Δa +1.58 km · θ 0.018°
published Apr 22, 2:10 AM UTC
Move raised
A set showed one of the two had moved.
1,268.33 km · 1,988.3 km a day later · Δa +3.16 km · θ 0.019°
The moves
Each move is a change the detector read between two of an object’s element sets, beyond what drag and the Earth’s shape do: the speed change it implies, the change of height and the change of the orbit’s plane.
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 | 2026-04-07 22:06:18 | 2026-04-08 03:22:28 | −0.06 km | 0.0011° | |||
| Same height | seen | 2026-04-07 22:06:18 | 2026-04-08 03:22:28 | 2.04 km | −0.06 km | 0.0011° | ||
| Beside | raised | 2026-04-07 22:06:18 | 2026-04-08 03:22:28 | 2.04 km | 9.08 km | −0.06 km | 0.0011° | |
| Move | raised | 2026-04-07 22:06:18 | 2026-04-08 03:22:28 | 2.04 km | 9.08 km | −0.06 km | 0.0011° | |
| Beside | confirmed | 2026-04-08 02:50:17 | 2026-04-08 06:56:33 | 2.78 km | 9.32 km | −0.08 km | 0.0014° | |
| Left | raised | 2026-04-15 11:31:39 | 2026-04-15 16:26:29 | 211.98 km | 281.60 km | −0.59 km | 0.0107° | |
| Left | confirmed | 2026-04-15 19:24:54 | 2026-04-16 00:16:21 | 233.18 km | 306.27 km | −0.61 km | 0.0110° | |
| Move | raised | 2026-04-20 20:52:51 | 2026-04-21 02:46:29 | 740.40 km | 1,037.85 km | +0.33 km | 0.0179° | |
| Move | raised | 2026-04-21 11:05:00 | 2026-04-21 15:37:19 | 972.77 km | 1,459.17 km | +1.58 km | 0.0183° | |
| Move | raised | 2026-04-21 22:08:01 | 2026-04-22 02:10:50 | 1,268.33 km | 1,988.26 km | +3.16 km | 0.0187° |
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 of this rendezvous’s verdicts would keep it off the list; the pair’s other rendezvous are judged on their own.