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Sentinel-3: Reflector Information

Sentinel-3A Retroreflector Array
Courtesy of ESA/EUMETSAT

RETROREFLECTOR INFORMATION

Retroreflector Primary Contact: Pierre Féménias
Address: ESA ESRIN, Via Galileo Galilei, CP64 I-00044 Frascati, Italy
Phone No.: +39 06 941 80674
E-mail Address: Pierre.Femenias@esa.int

Array Type: 7 cubes arranged on a spherical surface
Array Manufacturer: IPIE Moscow

Link (URL or reference) to any ground-tests that were carried out on the array:
Document: Systematic correction Δc for the Sentinel-3 LRR array laser ranging

The LRA design and/or type of cubes was previously used on the following missions:
Documents: LLR dimensional drawing, Sentinel-3 mechanical ICD, User manual

The 3-D location (possibly time-dependent) of the satellite's mass center relative to a satellite-based origin:
Time-dependent values to be provided after launch of satellite.
X = -1473.6 mm , Y = 213.7 mm , Z = 13.6 mm (spacecraft with 130 kg of fuel; TBC).
X = -1488.2 mm , Y = 217.6 mm , Z = 13.8 mm (spacecraft with 110 kg of fuel; TBC)

The 3-D location of the phase center of the LRA relative to a satellite-based origin: Document: LLR diagrams

The position (XYZ) of either the vertex or the center of the front face of each corner cube within the LRA assembly, with respect to the LRA reference point and including information of amount of recession of front faces of cubes:
Document: LLR dimensional drawing

The orientation of each cube within the LRA assembly (three angles for each cube):
Document: LLR dimensional drawing

The shape and size of each corner cube, especially the height:
Document: LLR dimensional drawing

More information is available: