Entry #2982: source sub report: ATULE, patrol no. 1, cdr Maurer, 1 Nov. 1944 05.00, position 20-09N 117-38E, transport vessel, 10,000 tons, night surface attack on radar, 2 torpedo hits out of 6 fired, claim target sunk.
Sources H.Jentschura, D.Jung, P.Mickel, "Warships of the IJN 1869-1945", 1982, IJN (op.cit.), JANAC (Joint Army-Navy Assessment Committee), Somerville, Muehlthaler: 1 Nov. 1944, position 20-17N 117-08E, ASAMA MARU, transport vessel requisitioned by the navy & operated by a civilian crew, 16,975 grt, sunk.
Patro report says blew up. ULTRA position 20-16N 116-114E. "Senji Yuso Sendan" op. cit. says was the only Maru in convoy MAMO-04 with 3 escorts; hit 04.35 by 3 torpedoes & sunk by the stern. "Senji Nippon Senmeiroku" op. cit. says 98 crew, 21 guards and 355 of 1,850 troops and passengers killed [Jentschura cit. gives date 1 Jan. 1944, misprint].