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On this day – April 15

Posted on April 15, 2024March 18, 2024 By Barb Sande

The events on this day in history for our heritage companies are noted below.

The earliest event was in 1892 (not a typo), the latest event was in 2011

Two milestone events (5 to 65+ years ago)

Human Spaceflight:

1959 – Army Ordnance Missile Command recommended using a Martin Titan for the second stage of the Saturn rocket, in correspondence sent to ARPA

1964 – Gemini Program Management Panel remained optimistic that the Titan II/Gemini program would have its first manned launch later in that same year – MILESTONE: 60 years ago

1966 – A Lockheed proposal was submitted to NASA to evaluate launching payloads in space using Agena stages from the Apollo Applications Platform

Military and Classified Programs:

1960 – LAUNCH: Lockheed Discoverer 11, Thor/Lockheed Agena A, SLC1E, VAFB

1969 – LAUNCH: Classified mission, MM Titan IIIB, SLC4W, VAFB – MILESTONE: 55 years ago

1970 – LAUNCH: Classified mission, MM Titan 23B, SLC4W, VAFB

1983 – LAUNCH: Classified mission, MM TItan 24B, SLC4W, VAFB

2011 – LAUNCH: USA 229, ULA Atlas V 411, SLC3E, VAFB

Exploration and Interplanetary Programs:

NONE

Earth-Monitoring and Civil Weather Satellite programs:

1999 – LAUNCH: LM Landsat 7, Delta 7920-10, SLC2W, VAFB

Commercial Programs:

NONE

Test, ICBM, FBM programs:

1965 – The last MM Titan I was removed from its silo, Lowry AFB, Colorado

1988 – LAUNCH (4): Lockheed Trident C4, SSBN658, ETR

1991 – LAUNCH: Lockheed Trident D5, SSBN736, ETR

Other:

1892 – General Electric company is founded

The photos today are of the launch of Landsat 7, a photo of the spacecraft being processed and an example of earth monitoring data from this spacecraft, which was finally decommissioned in 2022. 

April 15 – Launch of Landsat 7 on Delta II. Photo Credit: NASA.
April 15 – Landsat 7 undergoing assembly and test. Photo Credit: Lockheed Martin.
April 15 – Imagery from Landsat 7. Photo Credit: NASA.
On This Day

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