This TWINS data set contains spacecraft attitude data as polar and azimuthal instrument pointing vectors, each expressed with respect to an ECI Cartesian basis. The polar vector points along the TWINS rotation axis. The azimuthal vector lies in the plane normal to the polar vector and points toward the central scanning position (i.e., the zero-point location). Such pointing is derived from both the spacecraft attitude history file (SAH) and the sensor mounting orientation. The computation employed is designed to achieve a pointing accuracy of 0.5 degrees. Any deviation from this accuracy level is indicated in the header record metadata.
Version:2.2.2
This TWINS data set contains spacecraft attitude data as polar and azimuthal instrument pointing vectors, each expressed with respect to an ECI Cartesian basis. The polar vector points along the TWINS rotation axis. The azimuthal vector lies in the plane normal to the polar vector and points toward the central scanning position (i.e., the zero-point location). Such pointing is derived from both the spacecraft attitude history file (SAH) and the sensor mounting orientation. The computation employed is designed to achieve a pointing accuracy of 0.5 degrees. Any deviation from this accuracy level is indicated in the header record metadata.
| Role | Person | |
|---|---|---|
| 1. | GeneralContact | spase://SMWG/Person/David.J.McComas |
In CDF via HTTP from CDAWeb