Record of Surveying Points

Station name

Koganei station

Type of marker

Penta-prism

Name

SLR prism (SLR-H1 position)

Type of Target

Rotary sheet-type

Name of point

ＳＬＲ―ＰＳＭ１

Size of Target

５０ｍｍ

Penta- prism（To the direction of SLR-H1）

Target height

0.010m

Rotary target

Detailed drawing

Rough sketch of the area near the point

Photo of the point

Remarks

The penta-prism was measured by using rotary sheet type target after SLR telescope was orientated to the direction of SLR−H1.

Record of Surveying Points

Station name

Koganei station

Type of marker

Penta-prism

Name

SLR prism (SLR-H2 position)

Type of Target

Rotary sheet type

Name of point

ＳＬＲ―ＰＳＭ２

Size of Target

５０ｍｍ

Penta- prism（To the direction of SLR-H2）

Target height

0.010m

Rotary target

Detailed drawing

Rough sketch of the area near the point

Photo of the point

Remarks

The penta-prism was measured by using rotary sheet type target after SLR telescope was orientated to the direction of SLR−H2.

Record of Surveying Points

Station name

Koganei station

Type of marker

Aerial orthogonal point

Name

VLBI antenna reference point

Type of Target

ＲＴ１Ａ

Name of point

ＶＬＢＩ−ＣＰ０

Size of Target

９０ｍｍ

Point of intersection of elevation axis and azimuth axis

Elevation axis（confirmed with fishing line）

Azimuth axis(with mark)

Detailed drawing

Rough sketch of the area near the point

Photo of the point

Remarks

The target height was adjusted to the fishing line that was stretched through the hole of elevation axis.

Tribranch was shifted parallel to the fishing line and the center was adjusted to the mark of the azimuth axis.

Record of Surveying Points

Station name

Koganei station

Type of marker

Reflective target

Name

VLBI ground marker

Type of Target

Rotary sheet-type

Name of point

ＶＬＢＩ−ＢＳＰ

Size of Target

５０ｍｍ

Surveying point（RT）

Detailed drawing

Rough sketch of the area near the point

Photo of the point

Remarks

The target height of ＶＬＢＩ ground marker was set to zero.

Record of Surveying Points

Station name

Koganei station

Type of marker

Center of GPS Antenna

Name

GSI-GPS antenna reference point

Type of Target

Sheet-type

Name of point

ＧＳＩ−ＧＰＳ

Size of Target

１０ｍｍ

CENTER OF GPS ANTENNA

Measured height for Target height ａ

Measured height for Target height ｂ

Antenna constantｃ

Height reference target（RT）

Target height

Height reference target（RT）

Sealed target

Detailed drawing

Rough sketch of the area near the point

Photo of the point

Remarks

The target height was measured and calculated from the height reference target.

Target height＝ａ−ｂ−ｃ

Record of Surveying Points

Station name

Koganei station

Type of marker

Metallic marker

Name

Ground marker

Type of Target

ＲＴ１Ａ

Name of point

ＳＶＥＹ―Ｘ１

Size of Target

９０ｍｍ

ＲＴ１Ａ

Central of metallic marker

Central of metallic marker

Sokkia ＮＥＴ２Ｂ

Target height

Instrument height

Detailed drawing

Rough sketch of the area near the point

Photo of the point

Remarks

Ground marker is a sub reference point that is needed for local survey network.

Record of Surveying Points

Station name

Koganei station

Type of marker

Wooden post

Name

Ground marker

Type of Target

ＲＴ１Ａ

Name of point

ＳＶＥＹ―Ｘ２

Size of Target

９０ｍｍ

Central part of metallic pin

Central part of metallic pin

ＲＴ１Ａ

Sokkia ＮＥＴ２Ｂ

Target height

Instrument height

Detailed drawing

Rough sketch of the area near the point

Photo of the point

Remarks

Ground marker is a sub reference point that is needed for local survey network.

Record of Surveying Points

Station name

Koganei station

Type of marker

Metallic marker

Name

Ground marker

Type of Target

ＲＴ１Ａ

Name of point

ＳＶＥＹ―Ｘ９

Size of Target

９０ｍｍ

ＲＴ１Ａ

Central part of metallic marker

Central part of metallic marker

Sokkia ＮＥＴ２Ｂ

Target height

Instrument height

Detailed drawing

Rough sketch of the area near the point

Photo of the point

Remarks

Ground marker is a sub reference point that is needed for local survey network.

Record of Surveying Points

Station name

Koganei station

Type of marker

Metallic marker

Name

Ground marker

Type of Target

ＲＴ１Ａ

Name of point

ＳＶＥＹ―Ｘ１０

Size of Target

９０ｍｍ

Central part of metallic marker

Central part of metallic marker

ＲＴ１Ａ

Sokkia ＮＥＴ２Ｂ

Target height

Instrument height

Detailed drawing

Rough sketch of the area near the point

Photo of the point

Remarks

Ground marker is a sub reference point that is needed for local survey network.