Averaged Neutron Data

The AND product contains average fluxes for epithermal, thermal, and fast neutrons. The data is presented in a table format for a 5 degree by 5 degree grid. There are 36 latitude bands and 72 longitude bands, thus 2592 grid cells. Each cell corresponds to one row in the table. The first 72 rows in the table are the data for the 5 degree latitude band centered at 87.5 degrees north latitude, the second 72 rows are the data for the band centered at 82.5 degrees north latitude, and so on. Within each band, longitude increases eastward from the cell centered at 2.5 degrees east longitude to the cell centered at 357.5 degrees east longitude.

Column Name | Type | Bytes | Units |
---|---|---|---|

AREOCENTRIC_LATITUDE | IEEE_REAL | 4 | DEGREE |

Centerpoint areocentric latitude. | |||

AREOCENTRIC_EAST_LONGITUDE | IEEE_REAL | 4 | DEGREE |

Centerpoint areocentric east longitude. | |||

CTHERM | IEEE_REAL | 4 | |

Averaged Thermal neutron count rate (counts per second) over the 5x5 degree latitude longitude map bin and 15-degrees L-sub-S. | |||

NTHERM | IEEE_REAL | 4 | |

Number of collection intervals per map bin. | |||

STHERM | IEEE_REAL | 4 | |

Standard deviation in the thermal count rate (counts per second). | |||

CEPI | IEEE_REAL | 4 | |

Averaged Epithermal neutron count rate (counts per second) over the 5x5 degree latitude longitude map bin and 15-degrees L-sub-S. | |||

NEPI | IEEE_REAL | 4 | |

Number of collection intervals per map bin. | |||

SEPI | IEEE_REAL | 4 | |

Standard deviation in the epithermal count rate (counts per second). | |||

CFAST | IEEE_REAL | 4 | |

Averaged Thermal neutron count rate (counts per second) over the 5x5 degree latitude longitude map bin and 15-degrees L-sub-S. | |||

NFAST | IEEE_REAL | 4 | |

Number of collection intervals per map bin. | |||

SFAST | IEEE_REAL | 4 | |

Standard deviation in the fast count rate (counts per second). |