| MDI Limb QUALITY Bits |
| Bit |
Meaning |
Comments |
Fraction Affected |
|
| 0 - 15, 31 |
Standard QUALITY Bits |
|
| 16 |
Temporal Phase Change |
Reference Time of image not at nominal n*(12-minute) offset from previous
image, with change of phase with respect to 12-minute cadence; generally
due to either interruption of Structure Program, restart of temporal
averaging, or telemetry errors. Image likely integrated over less than
nominal time.
|
0.002 ? |
| 17 |
Simple Temporal Gap |
Reference Time of image not at nominal n*(12-minute) offset from
previous image, but without change of phase; may be due to interruption of
Structure Program, restart of temporal averaging, or telemetry errors,
in which case image likely integrated over less than nominal time.
May also be due to simple loss of previous image(s), with no impact on
current image.
|
0.002 ? |
| 18 |
Abnormal Integration Time |
Image integrated over non-nominal (23-min) time; overall level and effective
observation time need to be adjusted.
|
~0.002 ? |
|
| 19-21 | Unused |
|
| 22 |
I0 Filtergram Error |
On-board processing error resulting in corruption of computed continuum
values only. Generally only part of an image affected.
|
~0.005 ? |
| 23 |
Multiple Images |
Multiple images present in the raw data with Reference Times in the same
Record Time interval. This can be because there are multiple images with
the same Reference Time, or images with Reference Times separated by less
than 12 minutes. In the latter case it is a special case of flag 16.
|
~0.001 |
| 24 |
Mixed Sequences |
Integration of images from both 60-second and 30-second frame lists.
Note that the setting of bit 9 is conditioned on only a single one of
the images in the integration being from the 30-second list. If this
bit is clear, then bit 9 can be used to determine whether the entire
integration was in PRIME 60 or 30.
|
~0.5 |
|
| 25 - 30 | Unused |
31 |
Problem Valid? |