# Astrometry.net
From front page:

*If you have astronomical imaging of the sky with celestial coordinates you do not know—or do not trust—then Astrometry.net is for you. Input an image and we'll give you back astrometric calibration meta-data, plus lists of known objects falling inside the field of view.

We have built this astrometric calibration service to create correct, standards-compliant astrometric meta-data for every useful astronomical image ever taken, past and future, in any state of archival disarray. We hope this will help organize, annotate and make searchable all the world's astronomical information.*

* https://astrometry.net/

# Servers
The package `astrometry.net` is available in Debian for local plate solving.
The main remote server, https://astrometry.net , requires login, which
requires an openID account with a non-libre service.

# Local Server
HOWTO set up a local `astrometry.net` server.

```
sudo apt install git build-essential libccfits-dev libcfitsio-dev \
    python3-setuptools python3-distutils pkg-config ccache swig \
    zlib1g-dev libbz2-dev libcairo2-dev wcslib-dev \
    libjpeg62-turbo-dev python3-numpy libnetpbm11-dev netpbm \
    python3-openid uwsgi uwsgi-plugin-python3 \
    apache2 libapache2-mod-wsgi-py3 python3-matplotlib

sudo adduser nova
sudo adduser nova sudo
sudo su - nova

# Add to ~/.bashrc :
##############################################################################
PATH=/usr/lib/ccache:/usr/local/netpbm/bin:$PATH

PYP=
PYP=${PYP}:/usr/local/django-1.3/lib/python
PYP=${PYP}:/usr/local/django-openid-auth-0.3/lib/python
PYP=${PYP}:/usr/local/south-0.7.3/lib/python
PYP=${PYP}:.
export PYTHONPATH=${PYP}

PKG_CONFIG_PATH=/usr/local/wcslib-4.6.3/lib/pkgconfig:$PKG_CONFIG_PATH

LD_LIBRARY_PATH=/usr/local/wcslib-4.6.3/lib:$LD_LIBRARY_PATH

export NETPBM_INC="-I/usr/local/netpbm/include"
export NETPBM_LIB="-L/usr/local/netpbm/lib -lnetpbm"
##############################################################################

# Log out, log back in

pip3 install --no-cache-dir \
    social-auth-core django-social-auth3 social-auth-app-django

# Log out, log back in


git clone https://github.com/dstndstn/astrometry.net
cd astrometry.net/
make
make extra
make py
#sudo make install
cd net/
# test
cp settings_test.py settings.py
# Where '192.168.1.100' is IP of server and/or add more
echo "ALLOWED_HOSTS += ['127.0.0.1', '192.168.1.100']" >> settings.py

#cd ../..
#wget https://launchpadlibrarian.net/303558616/django-openid-auth-0.13.tar.gz
#tar xf django-openid-auth-0.13.tar.gz

# meh
ln -s /home/nova/astrometry.net/ /home/nova/astrometry
sudo ln -s /usr/bin/uwsgi /usr/local/bin/uwsgi
sudo mkdir -p /data/nova/
sudo chown -R nova:nova /data

mkdir -p appsecrets
touch appsecrets/__init__.py
touch appsecrets/auth.py
cp -p ../docker/webservice/django_db.py appsecrets/ 
echo "DJANGO_SECRET_KEY='password'" > appsecrets/django.py

mv migrations/* /tmp
python manage.py makemigrations && \
python manage.py migrate && \
python manage.py makemigrations net && \
python manage.py migrate net && \
python manage.py loaddata fixtures/initial_data.json && \
python manage.py loaddata fixtures/flags.json
```

# Run thing:
```
python manage.py runserver
```

Patch:
```
diff --git a/net/uwsgi.sh b/net/uwsgi.sh
index 224f2dbc..f7e3e40d 100755
--- a/net/uwsgi.sh
+++ b/net/uwsgi.sh
@@ -13,7 +13,7 @@ export PATH=${PATH}:$BASE/util:$BASE/solver:$BASE/plot
 # echo $PATH
 # export PYTHONPATH=${PYTHONPATH}:${CONDA_PREFIX}
 
-uwsgi -s :3030 --wsgi-file wsgi.py --touch-reload wsgi.py --processes 16 --reload-on-rss 768 -d /data/nova/uwsgi.log --limit-post 500000000 --stats 127.0.0.1:1717 \
+uwsgi -s :3030 --plugin /usr/lib/uwsgi/plugins/python310_plugin.so --wsgi-file wsgi.py --touch-reload wsgi.py --processes 16 --reload-on-rss 768 -d /data/nova/uwsgi.log --limit-post 500000000 --stats 127.0.0.1:1717 \
       --log-format "[pid: %(pid)|worker: %(wid)|req: -/-] %(addr) [%(ctime)] %(method) %(uri) => generated %(rsize) bytes in %(msecs) msecs (%(proto) %(status)) %(headers) headers in %(hsize) bytes (%(switches) switches on core %(core))" \
       --show-config \
       --harakiri 600 \

```

Startup patch

```
diff --git a/net/nova-uwsgi.service b/net/nova-uwsgi.service
index 2168531b..ac605d0c 100644
--- a/net/nova-uwsgi.service
+++ b/net/nova-uwsgi.service
@@ -18,7 +18,7 @@ NotifyAccess=all
 WorkingDirectory=/home/nova/astrometry/net
 User=nova
 Environment="PYTHONPATH=/home/nova" "PATH=/usr/local/bin:/usr/bin:/bin:/home/nova/astrometry/util:/home/nova/astrometry/solver:/home/nova/astrometry/plot"
-ExecStart=/usr/local/bin/uwsgi -s :3030 --wsgi-file wsgi.py --touch-reload wsgi.py --processes 8 --reload-on-rss 768 -d /data/nova/uwsgi.log --limit-post 500000000
+ExecStart=/usr/local/bin/uwsgi -s :3030 --plugin /usr/lib/uwsgi/plugins/python310_plugin.so --wsgi-file wsgi.py --touch-reload wsgi.py --processes 8 --reload-on-rss 768 -d /data/nova/uwsgi.log --limit-post 500000000
 
 [Install]
 WantedBy=multi-user.target
```

Apache
```
a2enmod rewrite
a2enmod proxy_uwsgi
a2enmod proxy_http.
```

Apache `/etc/apache2/sites-enabled/000-default.conf`

```
<VirtualHost *:80>
	LoadModule proxy_module modules/mod_proxy.so
	LoadModule proxy_http_module modules/mod_proxy_http.so

	ServerAdmin webmaster@localhost
	DocumentRoot /var/www/html
	ErrorLog ${APACHE_LOG_DIR}/error.log
	CustomLog ${APACHE_LOG_DIR}/access.log combined
	RewriteEngine on

	RewriteCond %{HTTP:UPGRADE} ^WebSocket$ [NC]
	RewriteCond %{HTTP:CONNECTION} Upgrade$ [NC]

	RewriteRule /(.*) ws://127.0.0.1:3030/$1 [P]

        <Location />
                ProxyPass uwsgi://127.0.0.1:3030/
        </Location>

	ProxyVia On
	ProxyPreserveHost On
</VirtualHost>
```

```
systemctl restart apache2
```

Startup

```
sudo cp nova-jobs.service /etc/systemd/system/
sudo cp nova-uwsgi.service /etc/systemd/system/
sudo systemctl daemon-reload
sudo systemctl start nova-jobs.service
sudo systemctl start nova-uwsgi.service
```

If everything works, start on boot:

```
systemctl enable nova-jobs.service
systemctl enable nova-uwsgi.service
# reboot
```

The API key by default:

`XXXXXXXX`


Add some indexes:


```
mkdir -p /data/INDEXES/index-4100 /data/INDEXES/index-4200

wget -r -l1 -c -N --no-parent --no-host-directories --cut-dirs=2 -A ".fits" -P /data/INDEXES/index-4100  http://broiler.astrometry.net/~dstn/4100/

wget -r -l1 -c -N --no-parent --no-host-directories --cut-dirs=2 -A ".fits" -P /data/INDEXES/index-4200 http://broiler.astrometry.net/~dstn/4200/

wget http://data.astrometry.net/hip.fits -O /data/hip.fits
wget http://data.astrometry.net/hd.fits -O /data/hd.fits
wget http://data.astrometry.net/tycho2.kd -O /data/tycho2.kd
```