Observatory code 684 are Paul Comba's observations (Thanks!).
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FBAC23 * C1997 08 07.16701 20 22 49.03 -15 43 36.4 18.6 R 735
FBAC23 C1997 08 07.20347 20 22 47.38 -15 43 42.4 18.7 R 735
FBAC23 C1997 08 07.21910 20 22 46.68 -15 43 44.8 18.6 R 735
FBAC23 C1997 08 09.17361 20 21 26.71 -15 48 56.9 18.3 R 735
FBAC23 C1997 08 09.19792 20 21 25.62 -15 49 00.7 18.3 R 735
J97P02D C1997 08 10.29105 20 20 42.65 -15 51 54.6 17.9 R 684
J97P02D C1997 08 10.29620 20 20 42.44 -15 51 55.3 684