DFH-2 Satellite Bus
Data current as of 2026-07-20.
The DFH-2 bus accounts for 7 cataloged objects, of which 7 are in orbit and 0 are active. Most are built by CAST. The largest operator on this bus is CHIS. The first launched in 1984, the most recent in 1991.
7
In orbit
0
Active
7
Total launched
0
Reentered
DFH-2 launched per year
Still in orbit Click a year to list its satellites.
Typical specifications
Most common values across cataloged DFH-2 satellites.
| Manufacturer | CAST |
|---|---|
| Purpose | Communication |
| Launch mass | 460 kg |
| Dry mass | 460 kg |
| Length | 1.6 m |
| Diameter | 2.1 m |
| Span | 2.1 m |
| Shape | Cyl + Ant |
| Power | Solar cells, batteries |
| Propulsion | AKM |
| Equipment | 2 C-band transponders |
| Typical orbit | 1437 min period, 14° inclination |
Top operators
CHIS 4 MAI 3
Top countries
CN 7
DFH-2 satellites
Track any of them live in KeepTrack.
| Name | NORAD | COSPAR | Owner | Launched | Orbit | Status | Track |
|---|---|---|---|---|---|---|---|
| STTW-5 Zhongxing 4 | 21833 | 1991-088A | CHIS | Dec 28, 1991 | 633 min, 32.1° | Inactive | ◉ |
| STTW-4 Zhongxing 3 | 20473 | 1990-011A | CHIS | Feb 4, 1990 | 1436 min, 14.1° | Inactive | ◉ |
| STTW-3 Zhongxing 2 | 19710 | 1988-111A | CHIS | Dec 22, 1988 | 1437 min, 14.0° | Inactive | ◉ |
| STTW-2 Zhongxing 1 | 18922 | 1988-014A | CHIS | Mar 7, 1988 | 1436 min, 13.2° | Inactive | ◉ |
| STTW-1 Shiyong Tongbu Tongxin Wx. | 16526 | 1986-010A | MAI | Feb 1, 1986 | 1437 min, 10.6° | Inactive | ◉ |
| STTW-T2 Shiyan Tongbu Tongxin Wx. | 14899 | 1984-035A | MAI | Apr 8, 1984 | 1437 min, 9.4° | Inactive | ◉ |
| STTW-T1 Shiyan Weixing | 14670 | 1984-008A | MAI | Jan 29, 1984 | 159 min, 36.1° | Inactive | ◉ |
Frequently asked questions
How many DFH-2 satellites are there?
The catalog lists 7 objects built on the DFH-2 bus. 7 are in orbit and 0 have reentered.
How many DFH-2 satellites are in orbit?
7 DFH-2 objects are currently in orbit, of which 0 carry an active status.
Who builds the DFH-2 bus?
The DFH-2 bus is most commonly built by CAST.
When did the first DFH-2 satellite launch?
The first cataloged DFH-2 satellite launched in 1984, and the most recent in 1991.