CANYON Block 2 Satellite Bus

Data current as of 2026-07-20.

The CANYON Block 2 bus accounts for 3 cataloged objects, of which 3 are in orbit and 0 are active. Most are built by LMSC. The largest operator on this bus is National Reconnaissance Office. The first launched in 1972, the most recent in 1977.

3
In orbit
0
Active
3
Total launched
0
Reentered

CANYON Block 2 launched per year

1 1972: 1 object launched 1973: 0 objects launched 1974: 0 objects launched 1975: 1 object launched 1976: 0 objects launched 1977: 1 object launched 1972 1973 1974 1975 1976 1977
Still in orbit Click a year to list its satellites.

Typical specifications

Most common values across cataloged CANYON Block 2 satellites.

Manufacturer LMSC
Purpose SIGINT, COMINT
Launch mass 350 kg
Dry mass 350 kg
Length 4 m
Diameter 1.5 m
Span 10 m
Shape Cyl + 2 Pan + Dish
Power Solar arrays, batteries
Propulsion ?
Equipment ?
Typical orbit 1435 min period, 7° inclination

Top operators

Top countries

US 3

CANYON Block 2 satellites

Track any of them live in KeepTrack.

Name NORAD COSPAR Owner Launched Orbit Status Track
OPS 9751 OPS 9751 10016 1977-038A NRO/SAFSP May 23, 1977 1437 min, 7.3° Inactive
OPS 4966 OPS 4966 07963 · NRO/SAFSP Jun 18, 1975 · Inactive
OPS 9390 OPS 9390 06317 1972-101A NRO/SAFSP Dec 20, 1972 1435 min, 9.0° Inactive

Frequently asked questions

How many CANYON Block 2 satellites are there?

The catalog lists 3 objects built on the CANYON Block 2 bus. 3 are in orbit and 0 have reentered.

How many CANYON Block 2 satellites are in orbit?

3 CANYON Block 2 objects are currently in orbit, of which 0 carry an active status.

Who builds the CANYON Block 2 bus?

The CANYON Block 2 bus is most commonly built by LMSC.

When did the first CANYON Block 2 satellite launch?

The first cataloged CANYON Block 2 satellite launched in 1972, and the most recent in 1977.

Satellite data compiled by KeepTrack from CelesTrak, Space-Track, and GCAT, provided under CC BY-NC 4.0.