Field¶
This table contains all the coordinate information for the “visiting” fields. The field centers are determined from a tessellation (or tiling) of the celestial sphere which results in a closest-packed set of 5280 hexagons and 12 pentagons inscribed in circular fields having a 3.5-degree diameter (R. H. Hardin, N. J. A. Sloane and W. D. Smith, Tables of spherical codes with icosahedral symmetry, published electronically at http://NeilSloane.com/icosahedral.codes/).
| Column | Description |
|---|---|
| fieldId | Numeric identifier for the given field. |
| Session_sessionId | The simulation run session Id. |
| fov | The field of view of the field (units=degrees). |
| ra | The Right Ascension of the field (units=degrees). |
| dec | The Declination of the field (units=degrees). |
| gl | The Galactic Longitude of the field (units=degrees). |
| gb | The Galactic Latitude of the field (units=degrees). |
| el | The Ecliptic Longitude of the field (units=degrees). |
| eb | The Ecliptic Latitude of the field (units=degrees). |