[Website] Update sidebar links & add technical specs

docs/source/index.md

@@ -19,8 +19,10 @@ NGPS achieves these gains through:
 :hidden:
 :maxdepth: 2
 
-science/index
-instrument/index
-users-manual/index
-cpp-api/library_root
+Science <science/index>
+Technical Specifications <technical-specifications>
+Users Manual <users-manual/index>
+C++ API <cpp-api/index>
+Software Issue Reporting <https://caltech-coo.atlassian.net/jira/software/c/form/493c1a90-1b07-49b4-afb8-464794ab6f28?atlOrigin=eyJpIjoiOTU4YmJlYmVjYjE1NGQ0NzhhNjUyY2ZmYWJkZWI2ZTIiLCJwIjoiaiJ9>
+Software Feature Request <https://caltech-coo.atlassian.net/jira/software/c/form/debed032-3401-4ef1-9d8a-c217aa62bdcb?atlOrigin=eyJpIjoiNmY5NjZmNGYwYWY3NDEyYWI0OTcxYmQ5ODAxZTk2YTkiLCJwIjoiaiJ9>
 ```

docs/source/technical-specifications.md

@@ -0,0 +1,90 @@
+# Technical Specifications
+
+This page summarizes the NGPS technical specifications from the May 14, 2026 Version 2 specification sheet.
+
+## General Specifications
+
+| Category | Specification |
+| --- | --- |
+| Instrument type | 4-channel UV-NIR spectrograph |
+| Wavelength coverage | 3050 to 10400 |
+| Telescope focus | Cassegrain focus at P200, F/13.6, 2.54 arcsec/mm |
+| Slit / IFU | 3-slit adjustable-width IFU |
+| Slice length | 50 arcsec long |
+| Slice width | 0.36 to 10 arcsec wide per slice |
+| Spectral resolution | R > 4000 for the narrowest slit setting |
+| Exposure timing | Common exposure time |
+| Detector binning | Independently binned spatial and spectral directions |
+| Readout mode | BOI mode |
+
+## Channel Performance
+
+| Channel | Bandpass | Max Efficiency, Slit | Spectral Resolution at 0.4 arcsec | Spatial Resolution |
+| --- | ---: | ---: | ---: | --- |
+| U | 3050 to 4430 | 65% | 4100 | Seeing limited |
+| G | 4250 to 5960 | 60% | 4200 | Seeing limited |
+| R | 5620 to 7950 | 74% | 4300 | Seeing limited |
+| I | 7530 to 10400 | 74% | 4500 | Seeing limited |
+
+## Detector and Readout Properties
+
+| Channel | Plate Scale (arcsec/pixel) | Dispersion (A/pixel) | Read Noise (e rms) | Dark Current (e/pixel/hour) |
+| --- | ---: | ---: | ---: | ---: |
+| U | 0.193 | 0.340 | 2.8 | < 5.6 TBC |
+| G | 0.189 | 0.435 | 7.8 | < 1.7 |
+| R | 0.186 | 0.577 | 3.7 | < 1.2 |
+| I | 0.186 | 0.713 | 4.6 | < 1.0 |
+
+## Detector Format and Cosmic-Ray Rate
+
+| Channel | Active Detector Region | Pixel Size | Cosmic-Ray Rate (% pixel/hour) | 2x1 Bin Readout Time (s) |
+| --- | --- | --- | ---: | ---: |
+| U | 1024 x 4102 | 15 um square pixels | 1.1 | 64 |
+| G | 1020 x 4114 | 15 um square pixels | 2.8 | 31 |
+| R | 1020 x 4114 | 15 um square pixels | 3.2 | 55 |
+| I | 1020 x 4114 | 15 um square pixels | 2.1 | 55 |
+
+## Calibration System
+
+| Area | Specification |
+| --- | --- |
+| Calibration input | Telescope-mimicking f/14 telecentric input beam |
+| Arc lamps | ThAr, FeAr |
+| Continuum sources | Quartz halogen continuum, red; laser-pumped continuum, blue |
+| Additional calibration sources | UV LEDs, etalon spectra |
+| Calibration control | Concurrent calibration, individual lamp shutters, mechanical PWM control |
+| Dome lamps | Palomar dome lamps: low, high, ultrahigh, He |
+
+## Acquisition and Guidance
+
+| Area | Specification |
+| --- | --- |
+| Acquisition and guidance system | Offset guider |
+| Field of view | 4.44 x 4.15 |
+| Pixel scale | 0.26 arcsec/pixel |
+| Astrometry | Full-field solution |
+| Filters | Photometric filters: g', r', i', clear |
+| Camera mode | EMCCD mode |
+
+## Slice Viewing Cameras
+
+| Area | Specification |
+| --- | --- |
+| Configuration | Two fields of view adjacent to outer slices |
+| Field of view | 21 x 50 arcsec each |
+| Pixel scale | 0.060 arcsec/pixel |
+
+## Additional Features
+
+| Feature |
+| --- |
+| Exposure time calculator |
+| Automated target acquisition |
+| Guided afternoon calibration |
+| Quick-look pipeline |
+| Flexure compensation |
+| Focus compensation |
+| Observation Timeline Modeler (OTM) |
+| Automatic binning adjustment |
+| Frame transfer capability |
+