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 1981 335 4049 4039 4052 4057 4059 4059 4066 4054 4066 4076 4066 4084 4064 0 4065 4096 4063 4073 4091 4079 4072 4064 4070 4052 4065.9 23 2 12 1981 336 4043 4030 4044 4078 4074 4069 4069 4055 4084 4073 4064 4079 4073 4054 4022 4047 4023 4031 4054 4064 4060 4050 4051 4047 4055.8 24 3 12 1981 337 4043 4031 4047 4030 4067 4044 4056 4053 4052 4059 4068 4061 4066 4063 4039 4071 4052 4063 4044 4034 4019 4049 4050 4059 4050.8 24 4 12 1981 338 4059 4058 4057 4051 4065 4050 4040 4066 4059 4049 4050 4041 4072 4066 4083 4069 4091 4074 4079 4076 4068 4072 4060 4053 4062.8 24 5 12 1981 339 4064 4062 4059 4067 4074 4077 4055 4059 4083 4071 4099 4083 4099 4102 4102 4098 4098 4088 4087 4064 4083 4076 4072 4079 4079.2 24 6 12 1981 340 4088 4080 4074 4065 4049 4066 4046 4092 4080 4078 4095 4116 4098 4120 4075 4089 4077 4078 4079 4064 4084 4089 4059 4096 4080.7 24 7 12 1981 341 4067 4086 4066 4068 4086 4061 4069 4068 4077 4093 4110 4080 4111 4096 4056 4111 4073 4075 4072 4081 4063 4078 4077 4070 4078.9 24 8 12 1981 342 4061 4070 4065 4079 4092 4110 4093 4108 4100 4101 4089 4095 4091 4106 4100 4081 4095 4058 4059 4031 4020 3991 3975 3967 4068.2 24 9 12 1981 343 3970 3971 3979 3979 3998 3997 4013 4005 4046 4065 4067 4081 4058 4059 4046 4046 4021 4020 4003 3998 4019 4008 3999 4013 4019.2 24 10 12 1981 344 4005 3998 4006 4012 4023 4027 4021 4026 4061 4044 4082 4096 4093 4083 4068 4035 4051 4045 4015 4023 3997 4020 4007 4008 4035.3 24 11 12 1981 345 4026 4029 4017 4027 4023 4029 4051 4044 4044 4058 4031 4035 4043 4039 4039 4046 4049 4060 4045 4059 4047 4038 4024 4025 4038.7 24 12 12 1981 346 3990 4001 4021 4012 4011 4005 3994 4002 4014 3991 4006 4008 4047 4048 4066 4055 4045 4054 4024 4018 4040 4046 4043 4018 4023.3 24 13 12 1981 347 4038 4045 4064 4066 4053 4067 4057 4092 4091 4056 4077 4060 4069 4080 4073 4081 4088 4065 4061 4059 4031 4053 4031 4056 4063.0 24 14 12 1981 348 4055 4037 4072 4061 4052 4058 4049 4054 4071 4039 4057 4058 4070 4071 4086 4072 4055 4073 4053 4089 4082 4069 4059 4057 4062.5 24 15 12 1981 349 4057 4039 4058 4064 4062 4058 4057 4080 4062 4076 4091 4099 4079 4090 4085 4095 4093 4088 4114 4116 4113 4137 4115 4095 4084.3 24 16 12 1981 350 4119 4117 4109 4090 4086 4093 4076 4069 4075 4077 4076 4086 4107 4105 4124 4141 4141 4152 4133 4130 4133 4133 4132 4122 4109.4 24 17 12 1981 351 4111 4116 4086 4103 4087 4096 4093 4110 4112 4112 4122 4122 4115 4116 4122 4116 4135 4132 4127 4142 4140 4150 4172 4152 4120.4 24 18 12 1981 352 4148 4126 4105 4120 4107 4110 4143 4124 4120 4119 4144 4124 4138 4127 4136 4134 4162 4118 4126 4144 4121 4125 4128 4127 4128.2 24 19 12 1981 353 4103 4137 4126 4134 4130 4130 4154 4138 4152 4139 4145 4154 4155 4193 4151 4166 4159 4150 4136 4122 4118 4134 4132 4128 4141.1 24 20 12 1981 354 4167 4165 4139 4151 4130 4139 4154 4146 4159 4185 4170 4160 4169 4164 4186 4163 4146 4178 4153 4152 4169 4165 4177 4171 4160.8 24 21 12 1981 355 4181 4153 4166 4183 4144 4175 4166 4188 4191 4199 4173 4193 4191 4192 4192 4183 4188 4175 4196 4185 4194 4183 4191 4206 4182.8 24 22 12 1981 356 4182 4202 4167 4165 4161 4137 4157 4176 4200 4179 4190 4195 4197 4193 4193 4198 4175 4187 4201 4197 4187 4170 4206 4182 4183.2 24 23 12 1981 357 4163 4145 4157 4153 4174 4173 4175 4208 4190 4215 4196 4213 4195 4200 4205 4195 4201 4185 4183 4169 4165 4182 4166 4167 4182.3 24 24 12 1981 358 4188 4188 4186 4174 4162 4178 4177 4181 4189 4194 4185 4190 4180 4178 4164 4172 4184 4195 4177 4167 4160 4151 4140 4152 4175.5 24 25 12 1981 359 4158 4161 4166 4153 4162 4135 4137 4172 4145 4148 4165 4149 4158 4155 4175 4172 4176 4177 4186 4154 4164 4174 4147 4148 4159.9 24 26 12 1981 360 4157 4157 4156 4145 4146 4148 4156 4152 4165 4153 4158 4169 4147 4155 4167 4158 4163 4167 4157 4159 4165 4160 4165 4164 4157.9 24 27 12 1981 361 4155 4164 4168 4159 4148 4148 4150 4158 4157 4177 4156 4166 4147 4149 4159 4136 4147 4144 4140 4144 4155 4154 4160 4164 4154.4 24 28 12 1981 362 4152 4169 4160 4141 4160 4147 4147 4161 4151 4167 4172 4159 4179 4167 4186 4161 4160 4157 4172 4172 4181 4171 4157 4160 4162.9 24 29 12 1981 363 4177 4140 4172 4165 4151 4124 4093 4115 4121 4145 4158 4159 4177 4168 4176 4123 4102 4062 4069 4038 4047 4034 4037 4036 4116.2 24 30 12 1981 364 4044 4057 4057 4083 4059 4092 4074 4034 4067 4114 4098 4105 4103 4119 4096 4112 4090 4089 4067 4041 4024 4037 4037 4026 4071.9 24 31 12 1981 365 4021 4046 4025 4025 4038 4002 4038 4018 4048 4058 4050 4038 4032 4028 4038 4021 4025 4014 4015 4005 4005 4033 4007 4033 4027.6 24 MONTHLY MEANS 4092 4091 4091 4092 4091 4090 4091 4097 4104 4107 4110 4112 4114 4116 4112 4111 4107 4104 4101 4096 4094 4097 4092 4091 4100.2 C-12