We use rotational gravity darkening in the disk of Kepler star KOI-2138 to show that the orbit of 2.1 − R ⊕ transiting planet candidate KOI-2138.01 has a low projected spin-orbit alignment of λ = 1 • ± 13. KOI-2138.01 is just the second super-Earth with a measured spin-orbit alignment after 55 Cancri e, and the first to be aligned. With a 23.55-day orbital period, KOI-2138.01 may represent the tip of a future iceberg of solar-system-like terrestrial planets having intermediate periods and low-inclination circular orbits.Subject headings: planets and satellites: individual (KOI-2138)

We describe the prediction, design, execution and calibration of stellar and solar occultation observations of Saturn's rings by the Visual and Infrared Mapping Spectrometer (VIMS) instrument on the Cassini spacecraft. Particular attention is paid to the technique developed for onboard acquisition of the stellar target and to the geometric and photometric calibration of the data. Examples of both stellar and solar occultation data are presented, highlighting several aspects of the data as well as the different occultation geometries encountered during Cassini's 13 year orbital tour. Complete catalogs of ring stellar and solar occultations observed by Cassini-VIMS are presented, as a guide to the standard data sets which have been delivered to the Planetary Data System's Ring Moon Systems Node (Hedman and Nicholson 2019b).2 Subject to the constraint that only even offsets in Z are permitted. 3 In normal, or 'low-res' mode, the standard 0.5 × 0.5 mrad IR IFOV is actually synthesized by combining two adjacent hi-res measurements. The 0.25 mrad width of the hi-res pixel is set by the width of the spectrometer's entrance slit, while its 0.50 mrad height is set by the physical dimension of the IR pixels.