This data record should only be input for installed tethers.

     2   5  7   11          21         31         41
    - --- -- ---- ---------- ---------- ---------- ----------
   |X|XXX|  |TIFL|XXXXXXXXXX|XXXXXXXXXX|          |          |
    - --- -- ---- ---------- ---------- ---------- ----------
          |   |                             |          |
          |   |                             |          |
          |   |                             |          |_(2) Density (E10.0)
          |   |                             |
          |   |                             |_(1) Pressure (E10.0)
          |   |
          |   |_Compulsory Data Record Keyword (A4)
          |
          |_Optional User Identifier (A2)

(1) The internal pressure of the tether at sea level

(2) The density of the internal fluid of the tether

These values are used to calculate the tether effective/wall tensions.