Operation Cresset facts for kids
Quick facts for kids Cresset |
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Information | |
Country | United States |
Period | 1977–1978 |
Number of tests | 22 |
Test type | underground shaft, tunnel |
Max. yield | 150 kilotonnes of TNT (630 TJ) |
The United States's Cresset nuclear test series was a group of 22 nuclear tests conducted in 1977–1978. These tests followed the Operation Fulcrum series and preceded the Operation Quicksilver series.
Name | Date time (UT) | Local time zone | Location | Elevation + height | Delivery Purpose |
Device | Yield | Fallout | References | Notes |
---|---|---|---|---|---|---|---|---|---|---|
Bobstay | October 26, 1977 14:15:00.08 | PST (–8 hrs) |
NTS Area U3jb 37°00′27″N 116°01′03″W / 37.00759°N 116.01741°W | 1,180 m (3,870 ft) – 381.3 m (1,251 ft) | underground shaft, weapons development |
5 kt | I-131 venting detected, 0.000003 Ci (0.00011 GBq) | |||
Hybla Gold | November 1, 1977 18:06:00.07 | PST (–8 hrs) |
NTS Area U12e.20 37°11′16″N 116°12′50″W / 37.18773°N 116.21384°W | 2,239 m (7,346 ft) – 384.99 m (1,263.1 ft) | tunnel, weapon effect |
10 kt | I-131 venting detected, 0 | Shot to test the MX missile shallow buried trench basing concept to see if a nearby nuclear fireball would cause the trench to act as a shock tube. | ||
Sandreef | November 9, 1977 22:00:00.075 | PST (–8 hrs) |
NTS Area U7aq 37°04′20″N 116°03′04″W / 37.07217°N 116.05115°W | 1,221 m (4,006 ft) – 700.74 m (2,299.0 ft) | underground shaft, weapons development |
150 kt | ||||
Seamount | November 17, 1977 19:30:00.077 | PST (–8 hrs) |
NTS Area U3kp 37°01′14″N 116°01′33″W / 37.02055°N 116.02584°W | 1,186 m (3,891 ft) - 370.09 m (1,214.2 ft) | underground shaft, weapons development |
10 kt | ||||
Rib | December 14, 1977 15:00:00.17 | PST (–8 hrs) |
NTS Area U3jv 37°01′03″N 116°01′07″W / 37.01752°N 116.01864°W | 1,184 m (3,885 ft) – 212.84 m (698.3 ft) | underground shaft, weapons development |
800 t | ||||
Farallones | December 14, 1977 15:30:00.07 | PST (–8 hrs) |
NTS Area U3fa 37°08′09″N 116°05′12″W / 37.13573°N 116.08658°W | 1,290 m (4,230 ft) – 668 m (2,192 ft) | underground shaft, weapons development |
150 kt | Venting detected, 1 Ci (37 GBq) | |||
Campos | February 13, 1978 21:53:00.162 | PST (–8 hrs) |
NTS Area U9cp 37°07′34″N 116°01′57″W / 37.12607°N 116.03261°W | 1,269 m (4,163 ft) – 319.6 m (1,049 ft) | underground shaft, weapons development |
800 t | Venting detected, 1.3 kCi (48 TBq) | |||
Reblochon | February 23, 1978 17:00:00.164 | PST (–8 hrs) |
NTS Area U2en 37°07′25″N 116°03′53″W / 37.12363°N 116.0647°W | 1,261 m (4,137 ft) – 658.4 m (2,160 ft) | underground shaft, weapons development |
120 kt | Venting detected, 36 Ci (1,300 GBq) | |||
Karab | March 16, 1978 15:00:00.07 | PST (–8 hrs) |
NTS Area U4ah 37°05′06″N 116°04′57″W / 37.08512°N 116.08249°W | 1,247 m (4,091 ft) – 331 m (1,086 ft) | underground shaft, weapons development |
1.5 kt | Venting detected | |||
Iceberg | March 23, 1978 16:30:00.2 | PST (–8 hrs) |
NTS Area U4g 37°06′07″N 116°03′08″W / 37.10182°N 116.05236°W | 1,239 m (4,065 ft) – 640.29 m (2,100.7 ft) | underground shaft, weapons development |
120 kt | ||||
Topmast | March 23, 1978 16:30:00.114 | PST (–8 hrs) |
NTS Area U7ay 37°05′56″N 116°01′14″W / 37.09881°N 116.02049°W | 1,282 m (4,206 ft) – 457.81 m (1,502.0 ft) | underground shaft, weapons development |
less than 20 kt | ||||
Backbeach | April 11, 1978 17:45:00.073 | PST (–8 hrs) |
NTS Area U19x 37°14′00″N 116°22′10″W / 37.23344°N 116.36936°W | 2,040 m (6,690 ft) – 671.78 m (2,204.0 ft) | underground shaft, weapons development |
100 kt | ||||
Asco | April 25, 1978 14:35:00.162 | PST (–8 hrs) |
NTS Area U10bc 37°09′16″N 116°02′08″W / 37.15452°N 116.03563°W | 1,285 m (4,216 ft) – 183 m (600 ft) | underground shaft, safety experiment |
less than 20 kt | ||||
Transom | May 10, 1978 15:00:00.07 | PST (–8 hrs) |
NTS Area U4f 37°05′16″N 116°03′13″W / 37.08773°N 116.0535°W | 1,231 m (4,039 ft) – 640 m (2,100 ft) | underground shaft, weapons development |
no yield | Fizzle? Device destroyed by Quicksilver/Hearts detonation on 1979. | |||
Jackpots | June 1, 1978 17:00:00.075 | PST (–8 hrs) |
NTS Area U3kj 37°01′14″N 116°01′58″W / 37.02062°N 116.03267°W | 1,186 m (3,891 ft) – 304.22 m (998.1 ft) | underground shaft, weapons development |
600 t | ||||
Satz | July 7, 1978 14:00:00.167 | PST (–8 hrs) |
NTS Area U2dq 37°06′43″N 116°04′41″W / 37.11185°N 116.07796°W | 1,263 m (4,144 ft) – 315 m (1,033 ft) | underground shaft, weapons development |
1.5 kt | Venting detected | |||
Lowball | July 12, 1978 17:00:00.08 | PST (–8 hrs) |
NTS Area U7av 37°04′43″N 116°02′42″W / 37.07861°N 116.04493°W | 1,225 m (4,019 ft) – 564.88 m (1,853.3 ft) | underground shaft, weapons development |
99 kt | ||||
Panir | August 31, 1978 14:00:00.164 | PST (–8 hrs) |
NTS Area U19ys 37°16′33″N 116°21′30″W / 37.27587°N 116.35823°W | 2,013 m (6,604 ft) – 681 m (2,234 ft) | underground shaft, weapons development |
140 kt | ||||
Diablo Hawk | September 13, 1978 15:15:00.16 | PST (–8 hrs) |
NTS Area U12n.10a 37°12′32″N 116°12′42″W / 37.20875°N 116.21165°W | 2,212 m (7,257 ft) – 388 m (1,273 ft) | tunnel, weapon effect |
Weapon effect on W87 warhead | 8 kt | |||
Cremino - 1 | September 27, 1978 16:30:00.165 | PST (–8 hrs) |
NTS Area U8e 37°10′15″N 116°05′17″W / 37.17096°N 116.08804°W | 1,341 m (4,400 ft) – 210 m (690 ft) | underground shaft, weapons development |
250 t | Simultaneous, same hole. | |||
Cremino-Caerphilly - 2 | September 27, 1978 16:30:00.17 | PST (–8 hrs) |
NTS Area U8e 37°10′15″N 116°05′17″W / 37.17096°N 116.08804°W | 1,341 m (4,400 ft) + | underground shaft, weapons development |
less than 20 kt | Simultaneous, same hole. | |||
Draughts | September 27, 1978 17:00:00.071 | PST (–8 hrs) |
NTS Area U7al 37°04′26″N 116°01′15″W / 37.07382°N 116.0207°W | 1,234 m (4,049 ft) – 441.59 m (1,448.8 ft) | underground shaft, weapons development |
25 kt | ||||
Rummy | September 27, 1978 17:20:00.076 | PST (–8 hrs) |
NTS Area U7au 37°04′47″N 116°03′09″W / 37.07974°N 116.05253°W | 1,226 m (4,022 ft) – 639.78 m (2,099.0 ft) | underground shaft, weapons development |
150 kt |
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Operation Cresset Facts for Kids. Kiddle Encyclopedia.