Lat: 18.6°N, Long: 27.7°E, Length: 2 km, Depth: km, Rükl: 24
AS17-M-0597 This small area northeast of Dawes, on the border between Mare Serenitatis and Mare Tranquillitatis, is densely populated with minor feature names because it was plotted on two of NASA's high-resolution Topophotomaps. The upper group of Robert, Mary and Isis appears on 42C3/S1 and the lower group of Osiris, Catena Brigitte, Rima Marcello, Rima Reiko and Jerik is on 42C3/S2.
- Japanese female name.
- Number 157 in Debra Hurwitz's Atlas and Catalog of Sinuous Rilles (together with Rima Marcello).
- According to NASA RP-1097, "Rima Reiko" is a Minor Feature whose name was originally intended only for use in connection with Topophotomap 42C3/S2(on which it is plotted).
APOLLO OVER THE MOON; A VIEW FROM ORBIT, Chapter 4: The Maria (Part 3), Figure 90.