Update data_model.md

docs/source/sls/data_model.md

@@ -56,7 +56,7 @@ COMMENT ==================================================================
 
 
 | keyword   | value                    | comment                                | fill value | type   | last modified |
-|-----------|:---------|---------------------------------------|------------|--------|---------------|
+|-----------|:-------------------------|----------------------------------------|------------|--------|---------------|
 | EXTNAME   | 'SCI'                    | Extension name                         | 'SCI'      | str    | C7            |
 | EXTVER    | 1                        | Extension version number               | 1          | int    | C7            |
 | BUNIT     | 'e-/s'                   | Brightness units                       | 'e-/s'     | str    | C7            |
@@ -68,6 +68,9 @@ COMMENT ==================================================================
 | SNRMAX    | 1.2                      | Maxmum signal to noise of good pixels  | -9999      | float  | C7            |
 | SNRMEAN   | 3.38                     | Average of the dark values subtracted  | -9999      | float  | C7            |
 | CRCOUNT   | 88988                    | Cosmic ray counts                      | -9999      | float  | C7            |
+| VER_INST  | '0.0.1 '                 | Instrument calibration pipeline version| -          | str    | C7            |
+| STA_INST  | 0                        | Instrument calibration status          | 1          | int    | C7            |
+| STM_INST  | '2022-12-30T10:18:53'    | Instrument pipeline processing time    | -          | str    | C7            |
 
 #### Header of `csst_ms_sls_position`