casa5
Public
Commits
| 17 17 | |
| 18 18 | <input> |
| 19 19 | <param type="string" name="vis" kind="ms" mustexist="true"> |
| 20 20 | <description>Name of the input visibility set.</description> |
| 21 21 | <value></value> |
| 22 22 | <example>vis='ngc5921.ms'</example> |
| 23 23 | </param> |
| 24 24 | <param type="string" name="outputvis" kind="ms"> |
| 25 25 | <description>Name of the output visibility set. (Can be the same as vis.)</description> |
| 26 26 | <value></value> |
| 27 - | <example>vis='ngc5921\_fixedvis.ms'</example> |
| 27 + | <example>vis='ngc5921fixedvis.ms'</example> |
| 28 28 | </param> |
| 29 29 | <param type="any" direction="in" name="field"> |
| 30 30 | <description>Fields to operate on. '' = all.</description> |
| 31 31 | <any type="variant"/> |
| 32 32 | <value>""</value> |
| 33 33 | </param> |
| 34 34 | <!-- <param type="any" direction="in" name="observation"> |
| 35 35 | <description>Observation ID(s) to operate on. '' = all.</description> |
| 36 36 | <any type="string int"/> |
| 37 37 | <value type="string"></value> |
| 55 55 | </param> |
| 56 56 | <param type="string" name="datacolumn"> |
| 57 57 | <description>when applying a phase center shift, modify visibilities only in this/these column(s)</description> |
| 58 58 | <value>all</value> |
| 59 59 | </param> |
| 60 60 | |
| 61 61 | </input> |
| 62 62 | |
| 63 63 | <example> |
| 64 64 | |
| 65 - | If the phase center is changed, the corresponding modifications are applied to the |
| 66 - | visibility columns given by the parameter "datacolumn" which is by default set |
| 65 + | If the phase center is changed, the corresponding modifications are applied to the |
| 66 + | visibility columns given by the parameter "datacolumn" which is by default set |
| 67 67 | to "all" (DATA, CORRECTED, and MODEL). |
| 68 68 | |
| 69 69 | Input Parameters |
| 70 70 | vis -- Name of the input visibility set |
| 71 - | |
| 71 + | |
| 72 72 | outputvis -- Name of the output visibility set, default: same as vis |
| 73 73 | |
| 74 74 | field -- field selection string |
| 75 75 | |
| 76 - | refcode -- Reference frame to convert to, default: the refcode of PHASE_DIR in the |
| 76 + | refcode -- Reference frame to convert to, default: the refcode of PHASE_DIR in the |
| 77 77 | FIELD table |
| 78 78 | example: 'B1950' |
| 79 - | |
| 79 + | |
| 80 80 | reuse -- base recalculation on existing UVW coordinates? default=True |
| 81 81 | ignored if parameter 'phasecenter' is set |
| 82 82 | |
| 83 - | phasecenter -- if set to a valid direction: change the phase center for the given |
| 83 + | phasecenter -- if set to a valid direction: change the phase center for the given |
| 84 84 | field to this value |
| 85 85 | example: 'J2000 9h25m00s -05d12m00s' |
| 86 86 | If given without the equinox, e.g. '0h01m00s +00d12m00s', the parameter |
| 87 - | is interpreted as a pair of offsets in RA and DEC to the present |
| 88 - | phasecenter. |
| 89 - | NOTE: The RA offset can be given in units of time or angle. If given |
| 87 + | is interpreted as a pair of offsets in RA and DEC to the present |
| 88 + | phasecenter. |
| 89 + | NOTE: The RA offset can be given in units of time or angle. If given |
| 90 90 | as a time (i.e. as a single number with a time unit as in, e.g., 12s |
| 91 - | or in the XXhXXmXXs or XX:XX:XX.XXX formats), it is applied as is. |
| 92 - | If given as an angle (e.g., 0.01deg), it is divided by the cos(DEC) |
| 91 + | or in the XXhXXmXXs or XX:XX:XX.XXX formats), it is applied as is. |
| 92 + | If given as an angle (e.g., 0.01deg), it is divided by the cos(DEC) |
| 93 93 | before it is applied. |
| 94 94 | |
| 95 95 | distances -- (experimental) List of the distances (as quanta) of the fields selected by field |
| 96 96 | to be used for refocussing. |
| 97 97 | If empty, the distances of all fields are assumed to be infinity. |
| 98 98 | If not a list but just a single value is given, this is applied to |
| 99 99 | all fields. |
| 100 100 | default: [] |
| 101 101 | examples: ['2E6km', '3E6km'] '15au' |
| 102 102 | |
| 103 - | datacolumn -- when applying a phase center shift, modify visibilities only in |
| 103 + | datacolumn -- when applying a phase center shift, modify visibilities only in |
| 104 104 | this/these column(s) |
| 105 105 | default: 'all' (DATA, CORRECTED, and MODEL) |
| 106 106 | example: 'DATA,CORRECTED' (will not modify MODEL) |
| 107 - | |
| 107 + | |
| 108 108 | Examples: |
| 109 109 | |
| 110 110 | fixvis('NGC3256.ms','NGC3256-fixed.ms') |
| 111 111 | will recalculate the UVW coordinates for all fields based on the existing |
| 112 112 | phase center information in the FIELD table. |
| 113 113 | |
| 114 114 | fixvis('Moon.ms','Moon-fixed.ms','Moon', '', 'J2000 9h25m00s 05d12m00s') |
| 115 115 | will set the phase center for field 'Moon' to the given direction and recalculate |
| 116 116 | the UVW coordinates. |
| 117 117 | |