The QUALITY keyword combines the valid bits of DATA_SW and PROBLEM.
| Standard MDI QUALITY Bits | ||
|---|---|---|
| Bit | Meaning of Set Bit | Comment |
| 0 (0001) | Any telemetry problem/missing | The TELEMERR portion of gather_qual |
| 1 (0002) | T_OBS Missing | Data Record MISSING (TS_EQ @ >Lev1 only) |
| 2 (0004) | > 0 Missing | 5 maskable bits indicating fraction of expected
image missing in telemetry
bit n set implies bit n-1 set for 2 < n < 7 |
| 3 (000c) | > 0.01 Missing | |
| 4 (001c) | > 0.1 Missing | |
| 5 (003c) | > 0.5 Missing | |
| 6 (007c) | > 0.9 Missing | |
| 7 (0080) | On-board Processing Error | E.g. F000 |
| 8 (0100) | Pointing Anomaly | E.g. RMW Mode or Spacecraft Rolled |
| 9 (0200) | MDI is NOT in PRIME 60 | From MDI_SW |
| 10 (0400) | Cosmic Rays | Excessive number of statistically unlikely pixels |
| 11 (0800) | Statistics unlikely | Gross image statistics unlikely for the observable |
| ... | Unused | |
| 31 (80000000) | 1 in PROBLEM if prob_upd has been run | PROB_VLD bit set to 0 when DATA_SW is set |