| Member Name/Aliases | Datatype | Description |
| siteLongitude | float64 | Site geodesic WEST longitude |
| siteLatitude | float64 | Site geodesic NORTH latitude |
| siteAltitude | float64 | Altitude (meters) |
| surveyCenterRa | float32 | J2000 right ascension of survey center (degrees) |
| surveyCenterDec | float32 | J2000 declination of survey center (degrees) |
| surveyEquinox | float32 | Survey equinox (years) |
| lambdaMin | float32 | Survey longitude minimum (degrees) |
| lambdaMax | float32 | Survey longitude maximum (degrees) |
| etaMin | float32 | Survey latitude minimum (degrees) |
| etaMax | float32 | Survey latitude maximum (degrees) |
| lambdaMinNStripe | float32[45] | The minimum longitude of each northern stripe |
| lambdaMaxNStripe | float32[45] | The maximum longitude of each northern stripe |
| etaNStripe | float32[45] | Latitude for each northern stripe |
| southStripeNumbers | int32[3] | The southern stripe numbers |
| lambdaMinSStripe | float32[3] | The minimum longitude of each southern stripe |
| lambdaMaxSStripe | float32[3] | The maximum longitude of each southern stripe |
| etaSStripe | float32[3] | Latitude for each southern stripe |
| stripeWidth | float32 | Width of stripes (degrees) |
| scanSeparation | float64 | Scan Separation |
| stripeSeparation | float32 | Stripe Separation |
| brickLength | float32 | Length of imaging bricks |
| ccdColSep | float64 | CCD Column Separation |
| northMajor | float32 | Major Axis Radius North |
| northMinor | float32 | Minor Axis Radius North |
| northPA | float32 | Position Angle North Area |
| telescopeSize | float32 | Telescope Size |
| fieldOfView | float32 | Telescope field of view |
| chipPixelX | int32 | Chip X-size |
| chipPixelY | int32 | Chip Y-size |
| nFilters | int32 | Number of filters |
| nChipsPerFilter | int32 | Number of chips per filter |
| effectiveLambda | int32[5] | Effective wavelengths of each filter |
| limitingMagnitudes | float32[5] | Limiting magnitudes per band |
| filters | char[16] | Filter names |
| refBand | char[3] | Reference band |
| specPerPlate | int32 | Spectra taken per plate |
| specLowerLimit | int32 | Spectrograph Wavelength lower limit |
| specUpperLimit | int32 | Spectrograph Wavelength upper limit |
resolutionPLDL; resolution | int32 | Resolution of spectrograph |