Operation Praetorian

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Praetorian
Information
Country United States
Test site NTS Area 12, Rainier Mesa; NTS Area 19, 20, Pahute Mesa; NTS, Areas 1-4, 6-10, Yucca Flat
Period 1981-1982
Number of tests 19
Test type underground shaft, underground tunnel
Max. yield 140 kilotonnes of TNT (590 TJ)
Navigation
Previous test series Operation Guardian
Next test series Operation Phalanx

The United States's Praetorian nuclear test series[1] was a group of 19 nuclear tests conducted in 1981-1982. These tests [note 1] followed the Operation Guardian series and preceded the Operation Phalanx series.

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See also: List of nuclear weapons tests of the United States
United States' Praetorian series tests and detonations
Name [note 2] Date time (UT) Local time zone [note 3][2] Location [note 4] Elevation + height [note 5] Delivery [note 6]
Purpose [note 7]		 Device [note 8] Yield [note 9] Fallout [note 10] References Notes
Paliza 1 October 1981 19:00:00.1 PST (-8 hrs)
 NTS Area U7bd Lua error in package.lua at line 80: module 'strict' not found. 1,260 m (4,130 ft) - 472.1 m (1,549 ft) underground shaft,
weapons development		 38 kt [1][3][4][5][6]
Tilci 11 November 1981 20:00:09.086 PST (-8 hrs)
 NTS Area U4ak Lua error in package.lua at line 80: module 'strict' not found. 1,232 m (4,042 ft) - 445 m (1,460 ft) underground shaft,
weapons development		 29 kt Venting detected [1][3][5][6][7]
Akavi 3 December 1981 15:00:00.098 PST (-8 hrs)
 NTS Area U2es Lua error in package.lua at line 80: module 'strict' not found. 1,293 m (4,242 ft) - 494 m (1,621 ft) underground shaft,
weapons development		 20 kt Venting detected [1][3][5][6][7]
Caboc 16 December 1981 21:05:00.09 PST (-8 hrs)
 NTS Area U2cp Lua error in package.lua at line 80: module 'strict' not found. 1,348 m (4,423 ft) - 335 m (1,099 ft) underground shaft,
weapons development		 5 kt Venting detected, 0.3 Ci (11 GBq) [1][5][6][7][8]
Jornada 28 January 1982 16:00:00.104 PST (-8 hrs)
 NTS Area U4j Lua error in package.lua at line 80: module 'strict' not found. 1,233 m (4,045 ft) - 638.9 m (2,096 ft) underground shaft,
weapons development		 139 kt [1][3][4][5][6]
Molbo 12 February 1982 14:55:00.083 PST (-8 hrs)
 NTS Area U20ag Lua error in package.lua at line 80: module 'strict' not found. 1,873 m (6,145 ft) - 638 m (2,093 ft) underground shaft,
weapons development		 80 kt I-131 venting detected, 0 [1][5][6][7][8]
Hosta 12 February 1982 15:25:00.09 PST (-8 hrs)
 NTS Area U19ak Lua error in package.lua at line 80: module 'strict' not found. 2,076 m (6,811 ft) - 639.5 m (2,098 ft) underground shaft,
weapons development		 140 kt [1][5][6]
Tenaja 17 April 1982 18:00:00.088 PST (-8 hrs)
 NTS Area U3lh Lua error in package.lua at line 80: module 'strict' not found. 1,177 m (3,862 ft) - 356.3 m (1,169 ft) underground shaft,
weapons development		 6 kt [1][5][6]
Kryddost 6 May 1982 20:00:00.083 PST (-8 hrs)
 NTS Area U2co Lua error in package.lua at line 80: module 'strict' not found. 1,363 m (4,472 ft) - 335 m (1,099 ft) underground shaft,
weapons development		 3.5 kt [1][5][6]
Bouschet 7 May 1982 18:17:00.11 PST (-8 hrs)
 NTS Area U3la Lua error in package.lua at line 80: module 'strict' not found. 1,217 m (3,993 ft) - 563.9 m (1,850 ft) underground shaft,
weapons development		 99 kt Venting detected, less than 1 Ci (37 GBq) [1][3][5][6][7]
Kesti 16 June 1982 14:00:00.085 PST (-8 hrs)
 NTS Area U9cn Lua error in package.lua at line 80: module 'strict' not found. 1,312 m (4,304 ft) - 289 m (948 ft) underground shaft,
weapons development		 less than 20 kt [1][5][6]
Nebbiolo 24 June 1982 14:15:00.09 PST (-8 hrs)
 NTS Area U19ae Lua error in package.lua at line 80: module 'strict' not found. 2,038 m (6,686 ft) - 639.5 m (2,098 ft) underground shaft,
weapons development		 140 kt [1][5][6]
Monterey 29 July 1982 20:05:00.083 PST (-8 hrs)
 NTS Area U4aj Lua error in package.lua at line 80: module 'strict' not found. 1,253 m (4,111 ft) - 400 m (1,300 ft) underground shaft,
weapons development		 20 kt Venting detected, 0.1 Ci (3.7 GBq) [1][3][5][6][7][8]
Atrisco 5 August 1982 14:00:00.09 PST (-8 hrs)
 NTS Area U7bp Lua error in package.lua at line 80: module 'strict' not found. 1,268 m (4,160 ft) - 639.78 m (2,099.0 ft) underground shaft,
weapons development		 138 kt [1][3][4][5][6]
Queso 11 August 1982 15:00:00.0 PST (-8 hrs)
 NTS Area U10bf Lua error in package.lua at line 80: module 'strict' not found. 1,310 m (4,300 ft) - 216 m (709 ft) underground shaft,
weapons development		 less than 20 kt [1][5][6]
Cerro 2 September 1982 14:00:00.085 PST (-8 hrs)
 NTS Area U3lf Lua error in package.lua at line 80: module 'strict' not found. 1,184 m (3,885 ft) - 228.6 m (750 ft) underground shaft,
weapons development		 less than 20 kt [1][5][6]
Diamond Ace - 2 (with Huron Landing) 23 September 1982 16:00:00.091 PST (-8 hrs)
 NTS Area U12n.15 Lua error in package.lua at line 80: module 'strict' not found. 1,824 m (5,984 ft) - 407.26 m (1,336.2 ft) underground tunnel,
weapon effect		 less than 20 kt Venting detected [1][5][6][7] Simultaneous.
Huron Landing - 1 (with Diamond Ace) 23 September 1982 16:00:00.09 PST (-8 hrs)
 NTS Area U12n.15 Lua error in package.lua at line 80: module 'strict' not found. 1,824 m (5,984 ft) - 408 m (1,339 ft) underground tunnel,
weapon effect		 20 kt Venting detected, 280 Ci (10,000 GBq) [1][5][6][7][8] Simultaneous.
Frisco 23 September 1982 17:00:00.085 PST (-8 hrs)
 NTS Area U8m Lua error in package.lua at line 80: module 'strict' not found. 1,347 m (4,419 ft) - 451 m (1,480 ft) underground shaft,
weapons development		 20 kt Venting detected, 2 Ci (74 GBq) [1][5][6][7][8]
Borrego 29 September 1982 13:30:00.096 PST (-8 hrs)
 NTS Area U7br Lua error in package.lua at line 80: module 'strict' not found. 1,234 m (4,049 ft) - 563.3 m (1,848 ft) underground shaft,
weapons development		 1 kt [1][3][5][6]
  1. ↑ A bomb test may be a salvo test, defined as two or more explosions "where a period of time between successive individual explosions does not exceed 5 seconds and where the burial points of all explosive devices can be connected by segments of straight lines, each of them connecting two burial points and does not exceed 40 kilometers in length". Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ The US, France and Great Britain have code-named their test events, while the USSR and China did not, and therefore have only test numbers (with some exceptions – Soviet peaceful explosions were named). Word translations into English in parentheses unless the name is a proper noun. A dash followed by a number indicates a member of a salvo event. The US also sometimes named the individual explosions in such a salvo test, which results in "name1 – 1(with name2)". If test is canceled or aborted, then the row data like date and location discloses the intended plans, where known.
  3. ↑ To convert the UT time into standard local, add the number of hours in parentheses to the UT time; for local daylight saving time, add one additional hour. If the result is earlier than 00:00, add 24 hours and subtract 1 from the day; if it is 24:00 or later, subtract 24 hours and add 1 to the day. All historical timezone data are derived from here:
  4. ↑ Rough place name and a latitude/longitude reference; for rocket-carried tests, the launch location is specified before the detonation location, if known. Some locations are extremely accurate; others (like airdrops and space blasts) may be quite inaccurate. "~" indicates a likely pro-forma rough location, shared with other tests in that same area.
  5. ↑ Elevation is the ground level at the point directly below the explosion relative to sea level; height is the additional distance added or subtracted by tower, balloon, shaft, tunnel, air drop or other contrivance. For rocket bursts the ground level is "N/A". In some cases it is not clear if the height is absolute or relative to ground, for example, Plumbbob/John. No number or units indicates the value is unknown, while "0" means zero. Sorting on this column is by elevation and height added together.
  6. ↑ Atmospheric, airdrop, balloon, gun, cruise missile, rocket, surface, tower, and barge are all disallowed by the Partial Nuclear Test Ban Treaty. Sealed shaft and tunnel are underground, and remained useful under the PTBT. Intentional cratering tests are borderline; they occurred under the treaty, were sometimes protested, and generally overlooked if the test was declared to be a peaceful use.
  7. ↑ Include weapons development, weapon effects, safety test, transport safety test, war, science, joint verification and industrial/peaceful, which may be further broken down.
  8. ↑ Designations for test items where known, "?" indicates some uncertainty about the preceding value, nicknames for particular devices in quotes. This category of information is often not officially disclosed.
  9. ↑ Estimated energy yield in tons, kilotons, and megatons. A ton of TNT equivalent is defined as 4.184 gigajoules (1 gigacalorie).
  10. ↑ Radioactive emission to the atmosphere aside from prompt neutrons, where known. The measured species is only iodine-131 if mentioned, otherwise it is all species. No entry means unknown, probably none if underground and "all" if not; otherwise notation for whether measured on the site only or off the site, where known, and the measured amount of radioactivity released.

References

  1. ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 1.15 1.16 1.17 1.18 1.19 1.20 Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ 4.0 4.1 4.2 Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ 5.00 5.01 5.02 5.03 5.04 5.05 5.06 5.07 5.08 5.09 5.10 5.11 5.12 5.13 5.14 5.15 5.16 5.17 5.18 5.19 Lua error in package.lua at line 80: module 'strict' not found.
  6. ↑ 6.00 6.01 6.02 6.03 6.04 6.05 6.06 6.07 6.08 6.09 6.10 6.11 6.12 6.13 6.14 6.15 6.16 6.17 6.18 6.19 Lua error in package.lua at line 80: module 'strict' not found.
  7. ↑ 7.0 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 Lua error in package.lua at line 80: module 'strict' not found.
  8. ↑ 8.0 8.1 8.2 8.3 8.4 Lua error in package.lua at line 80: module 'strict' not found.
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