Operation Cornerstone
In-game article clicks load inline without leaving the challenge.
The United States's Cornerstone nuclear test series was a group of 11 nuclear tests conducted in 1988–1989. These tests followed the Operation Touchstone series and preceded the Operation Aqueduct series.
| Name | Date time (UT) | Local time zone | Location | Elevation + height | Delivery Purpose | Device | Yield | Fallout | References | Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| Dalhart | October 13, 1988 14:00:00.08 | PST (–8 hrs) | NTS Area U4u 37°05′20″N 116°03′00″W/37.08895°N 116.05013°W/ 37.08895; -116.05013(Dalhart) | 1,229 m (4,032 ft) – 639.78 m (2,099.0 ft) | underground shaft, weapons development | 150 kt | ||||
| Monahans - 1 | November 9, 1988 20:15:00.08 | PST (–8 hrs) | NTS Area U3lk 36°59′28″N 116°01′19″W/36.99116°N 116.02198°W/ 36.99116; -116.02198(Monahans - 1) | 1,175 m (3,855 ft) – 289.86 m (951.0 ft) | underground shaft, weapons development | less than 20 kt | Simultaneous, separate holes. | |||
| Monahans - 2 | November 9, 1988 20:15:00.08 | PST (–8 hrs) | NTS Area U6i 36°59′19″N 116°01′19″W/36.98868°N 116.02197°W/ 36.98868; -116.02197(Monahans - 2) | 1,174 m (3,852 ft) + | underground shaft, weapons development | less than 20 kt | Simultaneous, separate holes. | |||
| Kawich Blue - 4 | December 9, 1988 15:15:00.08 | PST (–8 hrs) | NTS Area U8n 37°10′31″N 116°05′33″W/37.17527°N 116.09261°W/ 37.17527; -116.09261(Kawich Blue - 4) | 1,357 m (4,452 ft) + | underground shaft, safety experiment | less than 20 kt | Simultaneous, same hole with white. | |||
| Kawich White - 3 | December 9, 1988 15:15:00.08 | PST (–8 hrs) | NTS Area U8n 37°10′31″N 116°05′33″W/37.17527°N 116.09261°W/ 37.17527; -116.09261(Kawich White - 3) | 1,357 m (4,452 ft) – 384 m (1,260 ft) | underground shaft, safety experiment | 3 kt | Simultaneous, same hole with blue. | |||
| Misty Echo | December 10, 1988 20:30:00.06 | PST (–8 hrs) | NTS Area U12n.23 37°11′56″N 116°12′37″W/37.19899°N 116.21032°W/ 37.19899; -116.21032(Misty Echo) | 2,232 m (7,323 ft) – 400 m (1,300 ft) | tunnel, weapon effect | 25 kt | Venting detected, 7 Ci (260 GBq) | |||
| Texarkana | February 10, 1989 20:06:00.055 | PST (–8 hrs) | NTS Area U7ca 37°04′36″N 116°00′05″W/37.07678°N 116.00137°W/ 37.07678; -116.00137(Texarkana) | 1,267 m (4,157 ft) – 504.02 m (1,653.6 ft) | underground shaft, weapons development | 67 kt | ||||
| Kawich Black - 1 | February 24, 1989 16:15:00.08 | PST (–8 hrs) | NTS Area U2cu 37°07′43″N 116°07′22″W/37.1285°N 116.12267°W/ 37.1285; -116.12267(Kawich Black - 1) | 1,352 m (4,436 ft) – 431 m (1,414 ft) | underground shaft, safety experiment | less than 20 kt | Venting detected | Simultaneous, same hole with red. | ||
| Kawich Red - 2 | February 24, 1989 16:15:00.081 | PST (–8 hrs) | NTS Area U2cu 37°07′43″N 116°07′22″W/37.1285°N 116.12267°W/ 37.1285; -116.12267(Kawich Red - 2) | 1,352 m (4,436 ft) – 370 m (1,210 ft) | underground shaft, weapons development | 5 kt | Venting detected, 10 Ci (370 GBq) | Simultaneous, same hole with black. | ||
| Ingot | March 9, 1989 14:05:00.086 | PST (–8 hrs) | NTS Area U2gg 37°08′34″N 116°04′04″W/37.14279°N 116.06781°W/ 37.14279; -116.06781(Ingot) | 1,280 m (4,200 ft) – 500 m (1,600 ft) | underground shaft, weapons development | 33 kt | ||||
| Palisade - 1 | May 15, 1989 13:10:00.087 | PST (–8 hrs) | NTS Area U4at 37°06′27″N 116°07′18″W/37.10756°N 116.12176°W/ 37.10756; -116.12176(Palisade - 1) | 1,338 m (4,390 ft) – 345.22 m (1,132.6 ft) | underground shaft, weapons development | 5 kt | Venting detected, 2 Ci (74 GBq) | Simultaneous, same hole. | ||
| Palisade - 2 | May 15, 1989 13:10:00.09 | PST (–8 hrs) | NTS Area U4at 37°06′27″N 116°07′18″W/37.10756°N 116.12176°W/ 37.10756; -116.12176(Palisade - 2) | 1,338 m (4,390 ft) – 392 m (1,286 ft) | underground shaft, safety experiment | less than 20 kt | Venting detected | Simultaneous, same hole. | ||
| Palisade - 3 | May 15, 1989 13:10:00.09 | PST (–8 hrs) | NTS Area U4at 37°06′27″N 116°07′18″W/37.10756°N 116.12176°W/ 37.10756; -116.12176(Palisade - 3) | 1,338 m (4,390 ft) – 404 m (1,325 ft) | underground shaft, safety experiment | 8 kt | Venting detected | Simultaneous, same hole. | ||
| Tulia | May 26, 1989 18:07:00.021 | PST (–8 hrs) | NTS Area U4s 37°05′09″N 116°03′24″W/37.08587°N 116.05665°W/ 37.08587; -116.05665(Tulia) | 1,230 m (4,040 ft) – 397.8 m (1,305 ft) | underground shaft, weapons development | 500 t | ||||
| Contact | June 22, 1989 21:15:00.83 | PST (–8 hrs) | NTS Area U20aw 37°16′58″N 116°24′47″W/37.28282°N 116.41319°W/ 37.28282; -116.41319(Contact) | 1,980 m (6,500 ft) – 544.1 m (1,785 ft) | underground shaft, weapons development | 60 kt | ||||
| Amarillo | June 27, 1989 15:30:00.02 | PST (–8 hrs) | NTS Area U19ay 37°16′31″N 116°21′16″W/37.27541°N 116.35444°W/ 37.27541; -116.35444(Amarillo) | 2,019 m (6,624 ft) – 640.1 m (2,100 ft) | underground shaft, weapons development | 20 kt | ||||
| Disko Elm | September 14, 1989 15:00:00.098 | PST (–8 hrs) | NTS Area U12p.03 37°14′09″N 116°09′49″W/37.23589°N 116.16374°W/ 37.23589; -116.16374(Disko Elm) | 1,917 m (6,289 ft) – 260 m (850 ft) | tunnel, weapon effect | 10 kt | Venting detected, 0.5 Ci (19 GBq) |
Gallery
- Scale mockup of Shot Misty Echo.
- Instrumentation for shot Misty Echo.
- Instrumentation for shot Misty Echo
- Instrumentation for shot Misty Echo.
- Experiments for shot Disko Elm.
- Data produced by an unknown instrument during shot Misty Echo.
- Arming and Firing (A&F) racks for shot Palisade.