Rocket launches

Thor Delta B

Launch history and upcoming schedule for Thor Delta B.

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Rocket profile

Family: Thor

Manufacturer: McDonnell Douglas

LL2 vehicle: Thor Delta B

American orbital launch vehicle family with Thor first stage and a delta second stage.

Vehicle wiki

At a glance

0 upcoming tracked

Total launches

LL2 total

Success rate

89%

8 success • 1 failure

Next launch

—

No upcoming launches

Last launch

Mar 19, 1964, 6:13 AM GMT-5

In 22,635 days • Scrubbed

Launch cadence

57.7 days

Avg gap (last 25 launches)

Time TBD

—

No upcoming launches

Last 30 days

Launches

Last 90 days

Launches

Last 365 days

Launches

Record month

Mar 1964

Longest gap

148 days

Between consecutive launches

Latest scrub

Thor Delta B | Beacon Explorer A

Mar 19, 1964, 6:13 AM GMT-5

Failure

Rocket KPIs

LL2: Thor Delta B

Manufacturer: McDonnell Douglas

View full vehicle profile

Maiden flight

1962-12-13

Reusable

Height

31.0 m

Diameter

2.4 m

LEO payload

370 kg

GTO payload

68 kg

Stages

3-3

Success streak

Consecutive launches

Landings

0/0

0 failed

Landing streak

Consecutive landings

Manufacturer

McDonnell Douglas

Commercial • USA

Mission mix

Last 9

Top orbits

Elliptical Orbit2
Geosynchronous Orbit2
Low Earth Orbit2
Sun-Synchronous Orbit2
Medium Earth Orbit1

Top mission types

Communications5
Earth Science4

Top payload types

No payload type data yet.

Crewed launches

Payloads

Across the sample window

Where it flies

Top launch sites

Cape Canaveral SFS, FL, USA9

Schedule volatility

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Tracks timing/status changes for up to the next 20 launches based on the last 120 days of updates.

No upcoming launches to analyze right now.

Upcoming launches

0 items

No upcoming Thor Delta B launches scheduled.

Launch history

9 items

Thor Delta B | Beacon Explorer A
United States Air Force - Thor Delta B
Mar 19, 1964, 6:13 AM GMT-5
Launch pad: Cape Canaveral SFS, FL, USA (FL)
Thor Delta B | Relay 2
United States Air Force - Thor Delta B
Jan 21, 1964, 4:14 PM GMT-5
Launch pad: Cape Canaveral SFS, FL, USA (FL)
Thor Delta B | Tiros 8
United States Air Force - Thor Delta B
Dec 21, 1963, 4:30 AM GMT-5
Launch pad: Cape Canaveral SFS, FL, USA (FL)
Thor Delta B | Syncom 2
United States Air Force - Thor Delta B
Jul 26, 1963, 10:33 AM GMT-4
Launch pad: Cape Canaveral SFS, FL, USA (FL)
Thor Delta B | Tiros 7
United States Air Force - Thor Delta B
Jun 19, 1963, 5:50 AM GMT-4
Launch pad: Cape Canaveral SFS, FL, USA (FL)
Thor Delta B | Telstar 2
United States Air Force - Thor Delta B
May 07, 1963, 7:38 AM GMT-4
Launch pad: Cape Canaveral SFS, FL, USA (FL)

Show 3 more launches

Thor Delta B | Explorer 17
United States Air Force - Thor Delta B
Apr 02, 1963, 9:00 PM GMT-5
Launch pad: Cape Canaveral SFS, FL, USA (FL)
Thor Delta B | Syncom 1
United States Air Force - Thor Delta B
Feb 14, 1963, 12:35 AM GMT-5
Launch pad: Cape Canaveral SFS, FL, USA (FL)
Thor Delta B | Relay 1
United States Air Force - Thor Delta B
Dec 13, 1962, 6:30 PM GMT-5
Launch pad: Cape Canaveral SFS, FL, USA (FL)