ska-telmodel-layout
Telescope Layout 1.1
Example
{
"interface": "https://schema.skao.int/ska-telmodel-layout/1.1",
"telescope": "ska1_low",
"receptors": [{
"interface": "https://schema.skao.int/ska-telmodel-layout-receptor/1.1",
"station_label": "FS001",
"station_id": 1,
"diameter": 38.0,
"location": {
"interface": "https://schema.skao.int/ska-telmodel-layout-location/1.0",
"geocentric": {
"interface": "https://schema.skao.int/ska-telmodel-layout-location-geocentric/1.0",
"coordinate_frame": "ITRF",
"x": -2563226.960308,
"y": 5081884.949807,
"z": -2878357.951618
},
"geodetic": {
"interface": "https://schema.skao.int/ska-telmodel-layout-location-geodetic/1.0",
"coordinate_frame": "WGS84",
"lat": 0.01,
"lon": 0.01,
"h": 1.0
},
"local": {
"interface": "https://schema.skao.int/ska-telmodel-layout-location-local/1.0",
"coordinate_frame": "local",
"east": 100.0,
"north": 10.0,
"up": 1.0,
"reference": {
"interface": "https://schema.skao.int/ska-telmodel-layout-location-geodetic/1.0",
"coordinate_frame": "WGS84",
"lat": 0.01,
"lon": 0.01,
"h": 1.0
}
}
},
"fixed_delays": [{
"interface": "https://schema.skao.int/ska-telmodel-layout-receptor-fixed-delay/1.0",
"fixed_delay_id": "FIX_H",
"polarisation": 0,
"units": "m",
"delay": 100.0
}, {
"interface": "https://schema.skao.int/ska-telmodel-layout-receptor-fixed-delay/1.0",
"fixed_delay_id": "FIX_H",
"polarisation": 0,
"units": "m",
"delay": 100.0
}],
"niao": 0.0
}, {
"interface": "https://schema.skao.int/ska-telmodel-layout-receptor/1.1",
"station_label": "FS001",
"station_id": 1,
"diameter": 38.0,
"location": {
"interface": "https://schema.skao.int/ska-telmodel-layout-location/1.0",
"geocentric": {
"interface": "https://schema.skao.int/ska-telmodel-layout-location-geocentric/1.0",
"coordinate_frame": "ITRF",
"x": -2563226.960308,
"y": 5081884.949807,
"z": -2878357.951618
},
"geodetic": {
"interface": "https://schema.skao.int/ska-telmodel-layout-location-geodetic/1.0",
"coordinate_frame": "WGS84",
"lat": 0.01,
"lon": 0.01,
"h": 1.0
},
"local": {
"interface": "https://schema.skao.int/ska-telmodel-layout-location-local/1.0",
"coordinate_frame": "local",
"east": 100.0,
"north": 10.0,
"up": 1.0,
"reference": {
"interface": "https://schema.skao.int/ska-telmodel-layout-location-geodetic/1.0",
"coordinate_frame": "WGS84",
"lat": 0.01,
"lon": 0.01,
"h": 1.0
}
}
},
"fixed_delays": [{
"interface": "https://schema.skao.int/ska-telmodel-layout-receptor-fixed-delay/1.0",
"fixed_delay_id": "FIX_H",
"polarisation": 0,
"units": "m",
"delay": 100.0
}, {
"interface": "https://schema.skao.int/ska-telmodel-layout-receptor-fixed-delay/1.0",
"fixed_delay_id": "FIX_H",
"polarisation": 0,
"units": "m",
"delay": 100.0
}],
"niao": 0.0
}]
}
Contains information required to populate a delay model used determine the relative delay between stations. Includes information such as station location, and fixed delays such as cable lengths.
type |
object |
|
properties |
||
|
Interface version |
|
type |
string |
|
|
SKA Telescope |
|
type |
string |
|
|
Receptors |
|
type |
array |
|
items |
Identification, location and delay information for a receptor |
|
additionalProperties |
False |
|
Receptor 1.1
Identification, location and delay information for a receptor
type |
object |
|
properties |
||
|
Interface version |
|
type |
string |
|
|
Receptor or station label |
|
type |
string |
|
|
Receptor or station identifier |
|
type |
integer |
|
|
Receptor or station nominal diameter (m) |
|
type |
number |
|
|
Location of receptors coordinates |
|
|
Fixed delays |
|
type |
array |
|
items |
A fixed delay representation, these are delays that are fixed to the station, such as cable lengths, electronic delays. This is configured to be per polarisation and the delay model can contain multiple delays and they can be stored in length or time. |
|
|
non-intersecting axis offset - between az and el axes |
|
type |
number |
|
additionalProperties |
False |
|
Coordinate Locations 1.1
A representation of the receptor position. Multiple representations are supported.
type |
object |
|
properties |
||
|
Interface version |
|
type |
string |
|
|
Geocentric Location |
|
|
Geodetic location |
|
default |
null |
|
|
Local Geodetic location |
|
default |
null |
|
additionalProperties |
False |
|
ECEF - XYZ 1.1
Earth Centred Earth Fixed - Geocentric position (x,y,z) in meters. The centre of the Earth is defined by a given frame, usually a particular realisation of ITRF.
type |
object |
|
properties |
||
|
Interface version |
|
type |
string |
|
|
Coordinate frame for positions (ITRF) |
|
type |
string |
|
|
ECEF X coordinate (m) |
|
type |
number |
|
|
ECEF Y coordinate (m) |
|
type |
number |
|
|
ECEF Z coordinate (m) |
|
type |
number |
|
additionalProperties |
False |
|
Geodetic - lat,lon,h 1.1
Global Geodetic position schema, Geodetic coordinate systems are based on a reference ellipsoid the coordinates are geodetic latitude (rad), longitude (rad) and height (m).
type |
object |
|
properties |
||
|
Interface version |
|
type |
string |
|
|
Coordinate frame or datum (e.g. ITRF or WGS84) |
|
type |
string |
|
|
Geodetic latitude (rad) |
|
type |
number |
|
|
Geodetic longitude (rad) |
|
type |
number |
|
|
height (m) |
|
type |
number |
|
additionalProperties |
False |
|
Local Geodetic - east, north, up 1.1
Local Geodetic position schema. Local Geodetic coordinate systems are based on a reference ellipsoid and a geodetic reference position. They are generally specified in East (E), North (N), and Up (U) in meters
type |
object |
|
properties |
||
|
Interface version |
|
type |
string |
|
|
Coordinate frame or datum (e.g. ITRF or WGS84) |
|
type |
string |
|
|
Local Geodetic East (m) |
|
type |
number |
|
|
Local Geodetic North (m) |
|
type |
number |
|
|
Local Geodetic Height (m) |
|
type |
number |
|
|
The geodetic reference position |
|
additionalProperties |
False |
|
Fixed Delay 1.1
A fixed delay representation, these are delays that are fixed to the station, such as cable lengths, electronic delays. This is configured to be per polarisation and the delay model can contain multiple delays and they can be stored in length or time.
type |
object |
|
properties |
||
|
Interface version |
|
type |
string |
|
|
Identification for the delay |
|
type |
string |
|
|
Which polarisation this delay is applied to |
|
type |
integer |
|
|
Units for the delay (seconds, metres) |
|
type |
string |
|
|
The delay |
|
type |
number |
|
additionalProperties |
False |
|
Telescope Layout 1.0
Example
{
"interface": "https://schema.skao.int/ska-telmodel-layout/1.0",
"telescope": "ska1_low",
"receptors": [{
"interface": "https://schema.skao.int/ska-telmodel-layout-receptor/1.0",
"station_name": "FS001",
"diameter": 38.0,
"location": {
"interface": "https://schema.skao.int/ska-telmodel-layout-location/1.0",
"geocentric": {
"interface": "https://schema.skao.int/ska-telmodel-layout-location-geocentric/1.0",
"coordinate_frame": "ITRF",
"x": -2563226.960308,
"y": 5081884.949807,
"z": -2878357.951618
},
"geodetic": {
"interface": "https://schema.skao.int/ska-telmodel-layout-location-geodetic/1.0",
"coordinate_frame": "WGS84",
"lat": 0.01,
"lon": 0.01,
"h": 1.0
},
"local": {
"interface": "https://schema.skao.int/ska-telmodel-layout-location-local/1.0",
"coordinate_frame": "local",
"east": 100.0,
"north": 10.0,
"up": 1.0,
"reference": {
"interface": "https://schema.skao.int/ska-telmodel-layout-location-geodetic/1.0",
"coordinate_frame": "WGS84",
"lat": 0.01,
"lon": 0.01,
"h": 1.0
}
}
},
"fixed_delays": [{
"interface": "https://schema.skao.int/ska-telmodel-layout-receptor-fixed-delay/1.0",
"fixed_delay_id": "FIX_H",
"polarisation": 0,
"units": "m",
"delay": 100.0
}, {
"interface": "https://schema.skao.int/ska-telmodel-layout-receptor-fixed-delay/1.0",
"fixed_delay_id": "FIX_H",
"polarisation": 0,
"units": "m",
"delay": 100.0
}],
"niao": 0.0
}, {
"interface": "https://schema.skao.int/ska-telmodel-layout-receptor/1.0",
"station_name": "FS001",
"diameter": 38.0,
"location": {
"interface": "https://schema.skao.int/ska-telmodel-layout-location/1.0",
"geocentric": {
"interface": "https://schema.skao.int/ska-telmodel-layout-location-geocentric/1.0",
"coordinate_frame": "ITRF",
"x": -2563226.960308,
"y": 5081884.949807,
"z": -2878357.951618
},
"geodetic": {
"interface": "https://schema.skao.int/ska-telmodel-layout-location-geodetic/1.0",
"coordinate_frame": "WGS84",
"lat": 0.01,
"lon": 0.01,
"h": 1.0
},
"local": {
"interface": "https://schema.skao.int/ska-telmodel-layout-location-local/1.0",
"coordinate_frame": "local",
"east": 100.0,
"north": 10.0,
"up": 1.0,
"reference": {
"interface": "https://schema.skao.int/ska-telmodel-layout-location-geodetic/1.0",
"coordinate_frame": "WGS84",
"lat": 0.01,
"lon": 0.01,
"h": 1.0
}
}
},
"fixed_delays": [{
"interface": "https://schema.skao.int/ska-telmodel-layout-receptor-fixed-delay/1.0",
"fixed_delay_id": "FIX_H",
"polarisation": 0,
"units": "m",
"delay": 100.0
}, {
"interface": "https://schema.skao.int/ska-telmodel-layout-receptor-fixed-delay/1.0",
"fixed_delay_id": "FIX_H",
"polarisation": 0,
"units": "m",
"delay": 100.0
}],
"niao": 0.0
}]
}
Contains information required to populate a delay model used determine the relative delay between stations. Includes information such as station location, and fixed delays such as cable lengths.
type |
object |
|
properties |
||
|
Interface version |
|
type |
string |
|
|
SKA Telescope |
|
type |
string |
|
|
Receptors |
|
type |
array |
|
items |
Identification, location and delay information for a receptor |
|
additionalProperties |
False |
|
Receptor 1.0
Identification, location and delay information for a receptor
type |
object |
|
properties |
||
|
Interface version |
|
type |
string |
|
|
Receptor or station label |
|
type |
string |
|
|
Receptor or station nominal diameter (m) |
|
type |
number |
|
|
Location of receptors coordinates |
|
|
Fixed delays |
|
type |
array |
|
items |
A fixed delay representation, these are delays that are fixed to the station, such as cable lengths, electronic delays. This is configured to be per polarisation and the delay model can contain multiple delays and they can be stored in length or time. |
|
|
non-intersecting axis offset - between az and el axes |
|
type |
number |
|
additionalProperties |
False |
|
Coordinate Locations 1.0
A representation of the receptor position. Multiple representations are supported.
type |
object |
|
properties |
||
|
Interface version |
|
type |
string |
|
|
Geocentric Location |
|
|
Geodetic location |
|
default |
null |
|
|
Local Geodetic location |
|
default |
null |
|
additionalProperties |
False |
|
ECEF - XYZ 1.0
Earth Centred Earth Fixed - Geocentric position (x,y,z) in meters. The centre of the Earth is defined by a given frame, usually a particular realisation of ITRF.
type |
object |
|
properties |
||
|
Interface version |
|
type |
string |
|
|
Coordinate frame for positions (ITRF) |
|
type |
string |
|
|
ECEF X coordinate (m) |
|
type |
number |
|
|
ECEF Y coordinate (m) |
|
type |
number |
|
|
ECEF Z coordinate (m) |
|
type |
number |
|
additionalProperties |
False |
|
Geodetic - lat,lon,h 1.0
Global Geodetic position schema, Geodetic coordinate systems are based on a reference ellipsoid the coordinates are geodetic latitude (rad), longitude (rad) and height (m).
type |
object |
|
properties |
||
|
Interface version |
|
type |
string |
|
|
Coordinate frame or datum (e.g. ITRF or WGS84) |
|
type |
string |
|
|
Geodetic latitude (rad) |
|
type |
number |
|
|
Geodetic longitude (rad) |
|
type |
number |
|
|
height (m) |
|
type |
number |
|
additionalProperties |
False |
|
Local Geodetic - east, north, up 1.0
Local Geodetic position schema. Local Geodetic coordinate systems are based on a reference ellipsoid and a geodetic reference position. They are generally specified in East (E), North (N), and Up (U) in meters
type |
object |
|
properties |
||
|
Interface version |
|
type |
string |
|
|
Coordinate frame or datum (e.g. ITRF or WGS84) |
|
type |
string |
|
|
Local Geodetic East (m) |
|
type |
number |
|
|
Local Geodetic North (m) |
|
type |
number |
|
|
Local Geodetic Height (m) |
|
type |
number |
|
|
The geodetic reference position |
|
additionalProperties |
False |
|
Fixed Delay 1.0
A fixed delay representation, these are delays that are fixed to the station, such as cable lengths, electronic delays. This is configured to be per polarisation and the delay model can contain multiple delays and they can be stored in length or time.
type |
object |
|
properties |
||
|
Interface version |
|
type |
string |
|
|
Identification for the delay |
|
type |
string |
|
|
Which polarisation this delay is applied to |
|
type |
integer |
|
|
Units for the delay (seconds, metres) |
|
type |
string |
|
|
The delay |
|
type |
number |
|
additionalProperties |
False |
|