In the first-millennium series Enūma Anu Enlil, lunar omens (tablets 1–13) were distinguished from lunar eclipse omens (tablets 14–22), although both were still grouped within the same chapter (Koch U. 2015a: 163–171). Following this distinction, E. Laroche introduced two separate CTH numbers for the Ḫattuša material: CTH 532 for eclipse omens and CTH 533 for other lunar omens.

The texts now grouped under CTH 533 differ considerably from Laroche’s original catalog (CTH 532–535), from the concordance in HPMM, and, though to a lesser extent, from Riemschneider’s list of lunar texts (Riemschneider K.K. 2004a: 5). Some of these differences stem from Riemschneider’s correct identification of KBo 8.5 and KUB 37.162, which were not incorporated into the concordance, as well as the present author’s identification of the small fragment KUB 37.212.

Additionally, Laroche’s first-millennium-based separation does not always align with the structure of the Ḫattuša manuscripts. For instance, the lunar eclipse tablet KBo 2.19+ and its duplicates contain omens concerning the color of the moon and moonlight on the reverse. KBo 13.36 features lunar halo omens on the obverse and lunar eclipse omens on the reverse, probably because it belongs to the calendar omen tradition. The star-omen tablet KUB 8.14 adds omens on the lunar horns after a double ruling on the reverse. While this may represent a secondary scribal compilation, it is also possible that the lunar omens in KBo 2.19+ were part of the original text. A similar combination of solar eclipse and general solar omens appears on a Middle Babylonian tablet from Susa (Rutz M. 2006a). As a result, KBo 2.19+ and its duplicates (IBoT 3.139; KBo 34.116; KUB 8.3; 8.8+; KUB 8.9), as well as KUB 8.14 and its duplicates (KBo 14.61; KUB 8.12; KUB 34.16), are reassigned here to CTH 532.8 and CTH 535.4, respectively.

A third point concerns several tablets listed under CTH 533 by Laroche, in HPMM 5, and in its online version. Although they mention the moon, they are better classified as something else. Specifically, KBo 8.128, KBo 13.36, KUB 8.29, and KUB 34.9–11 are lunar eclipse omens. KUB 8.15 contains solar omens and KBo 42.65 star omens.

Finally, KBo 56.58 (=765/u), listed under CTH 533 by HPMM 5: 192, is not an omen text but rather a cult inventory fragment (CTH 530), as already noted by Soysal O. 2016c: 427.

Technically, KUB 34.12, the only preserved fragment of the Hittite version of the opening of Enūma Anu Enlil, should also be included under CTH 533, since it begins with lunar omens. However, Laroche assigned it a separate number (CTH 531).

There are, therefore, fewer surviving manuscripts dealing with regular lunar omens than with lunar eclipses, solar phenomena, or stars. That said, as discussed above, these categories are not always clear-cut. Note also that Laroche chose not to distinguish between solar eclipse omens and other solar omens, assigning them all to CTH 534.

Most of the CTH 533 texts are fragmentary. Only CTH 533.1 survives in enough copies to offer a more complete picture. It is attested in two bilingual versions, two Hittite fragments, and several Akkadian parallels from Emar. Together, these suggest that the text represents a Middle Babylonian precursor to Enūma Anu Enlil 5. The two manuscripts assigned to CTH 535.6 contain the same Hittite ritual. Another ritual may be found in KUB 8.10, although the context is too fragmentary to be certain.

One fragment, KBo 34.128, written in Old or Early Middle Script, shows that lunar omens were already known in Ḫattuša at a relatively early stage. Even if we date the earliest Old Script texts down to the end of the 15th century BCE (Hout Th.P.J. van den 2009b: 30–35), this would still make KBo 34.128 the second-oldest non-eclipse lunar omen known to date (Rochberg-Halton F. 2006a: 337–341; Koch U. 2015a: 160–161). The oldest are the few preserved on the Old Babylonian Šilejko tablet in St. Petersburg (Horowitz W. 2000a: 203–206). The duplicate of KBo 34.128, KUB 34.17, shows late New Script signs, suggesting that this text continued to be copied over a long period.