MAGNETIC OBSERVATORY, HERMANUS SOUTH AFRICA, IN COLLABORATION WITH THE COSMIC RAY RESEARCH UNIT, POTCHEFSTROOM UNIVERSITY HERMANUS 12-NM-64 NEUTRON MONITOR COORDINATES 34 25 S, 19 13 E ALTITUDE 26 METERS REAL COUNTS 100 TIMES TABULATED VALUES CORRECTED TO 760.0 MM HG CO-EFFICIENT 0.95 PERCENT/MM HG DATE DAY UT 01 02 03 04 05 06 07 08 09 10 11 12 DAILY MEANS 13 14 15 16 17 18 19 20 21 22 23 24 1 12 1986 335 4470 4457 4453 4458 4413 4452 4440 4444 4458 4431 4437 4429 4446 4438 4433 4440 4434 4433 4436 4446 4445 4431 4449 4432 4441.9 24 2 12 1986 336 4436 4434 4446 4440 4447 4422 4447 4457 4464 4466 4443 4466 4453 4446 4444 4452 4444 4471 4456 4443 4472 4457 4437 4467 4450.4 24 3 12 1986 337 4473 4464 4464 4451 4450 4465 4450 4451 4450 4449 4443 4439 4445 4431 4437 4464 4452 4450 4447 4450 4445 4454 4469 4462 4452.3 24 4 12 1986 338 4460 4460 4453 4460 4441 4473 4455 4445 4437 4466 4462 4459 4455 4454 4444 4456 4449 4457 4449 4451 4439 4461 4459 4446 4453.8 24 5 12 1986 339 4435 4437 4464 4459 4465 4445 4449 4449 4444 4453 4426 4453 4461 4460 4454 4474 4446 4437 4458 4448 4456 4450 4441 4447 4450.5 24 6 12 1986 340 4439 4429 4439 4453 4450 4448 4466 4464 4418 4457 4466 4461 4458 4452 4452 4465 4477 4468 4440 4452 4435 4441 4435 4461 4451.1 24 7 12 1986 341 4467 4463 4445 4448 4453 4455 4460 4467 4428 4445 4440 4468 4469 4462 4472 4477 4451 4458 4473 4454 4453 4463 4462 4459 4458.0 24 8 12 1986 342 4476 4457 4483 4484 4466 4452 4456 4458 4454 4448 4473 4466 4479 4454 4462 4464 4470 4438 4456 4437 4460 4459 4479 4475 4462.8 24 9 12 1986 343 4470 4496 4466 4458 4463 4454 4473 4453 4456 4484 4473 4471 4474 4466 4452 4446 4451 4463 4453 4443 4445 4467 4458 4461 4462.3 24 10 12 1986 344 4471 4480 4460 4488 4461 4455 4458 4478 4468 4483 4491 4475 4491 4495 4484 4485 4469 4472 4476 4487 4489 4497 4503 4502 4479.9 24 11 12 1986 345 4482 4496 4470 4477 4474 4486 4490 4491 4467 4497 4469 4476 4507 4520 4476 4492 4483 4489 4468 4485 4472 4466 4486 4490 4483.7 24 12 12 1986 346 4482 4498 4495 4489 4482 4478 4487 4496 4487 4484 4494 4502 4484 4481 4464 4471 4460 4481 4473 4469 4481 4498 4478 4485 4483.3 24 13 12 1986 347 4485 4463 4487 4477 4490 4470 4488 4483 4473 4498 4499 4485 4481 4494 4486 4467 4478 4470 4461 4455 4468 4447 4445 4469 4475.8 24 14 12 1986 348 4489 4482 4492 4489 4497 4480 4477 4490 4493 4488 4472 4498 4505 4467 4487 4493 4490 4487 4495 4489 4496 4488 4487 4494 4488.5 24 15 12 1986 349 4492 4487 4490 4492 4483 4474 4482 4501 4472 4482 4488 4477 4484 4472 4477 4480 4494 4469 4469 4466 4493 4449 4467 4465 4479.4 24 16 12 1986 350 4460 4463 4495 4476 4495 4502 4488 4483 4458 4483 4484 4479 4481 4474 4490 4501 4510 4485 4492 4500 4487 4486 4486 4486 4485.2 24 17 12 1986 351 4490 4497 4494 4495 4506 4496 4503 4482 4471 4500 4486 4510 4494 4488 4481 4504 4505 4485 4478 4486 4499 4508 4498 4492 4493.7 24 18 12 1986 352 4498 4509 4473 4489 4473 4461 4503 4496 4494 4496 4487 4494 4469 4467 4480 4479 4465 4470 4461 4454 4484 4489 4456 4489 4480.7 24 19 12 1986 353 4461 4487 4500 4488 4468 4459 4473 4456 4476 4485 4479 4481 4478 4487 4491 4464 4476 4486 4474 4485 4475 4484 4479 4484 4478.2 24 20 12 1986 354 4497 4497 4468 4473 4486 4473 4479 4479 4471 4464 4465 4474 4491 4470 4493 4468 4474 4477 4467 4469 4468 4500 4494 4483 4478.3 24 21 12 1986 355 4486 4493 4474 4482 4496 4474 4494 4472 4490 4470 4460 4478 4482 4472 4484 4462 4488 4478 4475 4493 4462 4507 4477 4461 4479.6 24 22 12 1986 356 4502 4494 4469 4474 4480 4456 4467 4469 4459 4475 4474 4473 4481 4480 4484 4518 4497 4507 4485 4490 4486 4473 4468 4471 4480.5 24 23 12 1986 357 4468 4481 4480 4488 4492 4457 4468 4480 4481 4458 4480 4497 4477 4511 4497 4466 4496 4503 4491 4475 4485 4499 4496 4468 4483.1 24 24 12 1986 358 4465 4474 4461 4488 4473 4484 4459 4465 4465 4462 4477 4492 4462 4483 4473 4479 4492 4465 4491 4464 4471 4487 4491 4468 4474.6 24 25 12 1986 359 4483 4468 4459 4466 4455 4470 4469 4471 4452 4484 4480 4475 4472 4476 4479 4487 4468 4481 4471 4481 4466 4475 4490 4450 4472.0 24 26 12 1986 360 4467 4464 4492 4492 4460 4460 4489 4473 4466 4470 4499 4483 4485 4491 4499 4487 4485 4487 4479 4481 4491 4495 4487 4485 4482.0 24 27 12 1986 361 4482 4500 4500 4508 4504 4495 4463 4497 4476 4479 4474 4447 4472 4475 4468 4473 4480 4483 4481 4487 4471 4494 4498 4496 4483.5 24 28 12 1986 362 4463 4489 4490 4489 4471 4482 4469 4485 4478 4475 4498 4484 4484 4481 4503 4482 4494 4481 4492 4485 4515 4517 4497 4509 4488.0 24 29 12 1986 363 4499 4503 4484 4497 4512 4499 4502 4493 4494 4514 4497 4503 4480 4484 4489 4477 4490 4490 4489 4477 4495 4486 4491 4511 4494.0 24 30 12 1986 364 4495 4485 4486 4477 4487 4485 4483 4474 4483 4479 4504 4494 4497 4492 4481 4496 4502 4513 4507 4499 4518 4510 4521 4487 4494.0 24 31 12 1986 365 4498 4510 4515 4487 4495 4490 4510 4483 4500 4490 4486 4496 4478 4500 4497 4515 4493 4499 4494 4497 4493 4475 4481 4494 4494.8 24 MONTHLY MEANS 4476 4478 4476 4477 4474 4469 4474 4474 4467 4475 4474 4477 4477 4475 4475 4477 4476 4475 4472 4471 4475 4478 4476 4476 4474.7 C-12