Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Designation | Type | Length overall | Launch weight | Warhead weight | Range |
| --- | --- | --- | --- | --- | --- |
| S-8KO | HEAT | 1.57 m | 11.3kg | 3.6kg (0.9kg of explosive) | 1.3 to 4km |
| S-8KOM | HEAT | 1.57 m | 11.3kg | 3.6kg (0.9kg of explosive) | 1.3 to 4km |
| S-8B | Penetrating | 1.5 m | 15.2kg | 7.41kg (0.6kg of explosive) | 1.2 to 2.2km |
| S-8BM | Penetrating | 1.54 m | 15.2kg | 7.41kg (0.6kg of explosive) | 1.2 to 2.2km |
| S-8D | FAE | 1.66 m | 11.6kg | 3.8kg (2.15kg of explosive) | 1.3 to 3km |
| S-8DM | FAE | 1.7 m | 11.6kg | 3.8kg (2.15kg of explosive) | 1.3 to 3km |
| S-8DF | FAE | 1.68 m | 13.4kg | 5.5kg (3.3kg of explosive) | 1.3 to 4km |
| S-8 O | Illuminating | 1.63 m | 12.1kg | 4.3kg | 4 to 4.5km |
| S-8 OM | Illuminating | 1.63 m | 12.1kg | 4.3kg | 4 to 4.5km |
| S-8T | Tandem-HEAT | 1.7 m | 13kg | 6.6kg (1.6kg of explosive) | 1.3 to 4km |
| S-8P | Chaff | 1.63 m | 12.3kg | 4.5kg of chaff | 2 to 3km |
| S-8PM | Chaff | 1.63 m | 12.3kg | 4.5kg of chaff | 2 to 3km |
| S-8S | Flechette | 1.612 m | 13kg | 4.3kg | 1.2 to 3.5km |
| S-8TsM | Target marking | 1.605 m | 11.1kg | 3.6kg | 1.3 to 2km (heli) 1.3 to 3km (plane) |
Question:
What type has an overall length of 1.605 m?
Answer:
Target marking