Keep TLE historical data
Nikos Roussos
parent
833439246b
commit
d620b95197
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@ -1,7 +1,7 @@
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from django.contrib import admin
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from network.base.models import (Antenna, Satellite, Station, Transmitter,
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Observation, Data, Mode)
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Observation, Data, Mode, Tle)
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@admin.register(Mode)
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@ -28,7 +28,16 @@ class StationAdmin(admin.ModelAdmin):
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@admin.register(Satellite)
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class SatelliteAdmin(admin.ModelAdmin):
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list_display = ('name', 'norad_cat_id', 'updated_date')
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readonly_fields = ('name', 'names', 'image', 'tle0', 'tle1', 'tle2')
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readonly_fields = ('name', 'names', 'image')
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def updated_date(self, obj):
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return obj.updated.strftime('%d.%m.%Y, %H:%M')
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@admin.register(Tle)
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class TleAdmin(admin.ModelAdmin):
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list_display = ('tle0', 'tle1', 'updated_date')
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readonly_fields = ('tle0', 'tle1', 'tle2')
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def updated_date(self, obj):
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return obj.updated.strftime('%d.%m.%Y, %H:%M')
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@ -0,0 +1,6 @@
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from network.base.models import Satellite, Tle
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def get_latest_tle(satellite):
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latest_tle = Tle.objects.filter(satellite=satellite).latest('updated')
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return latest_tle
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@ -2,7 +2,8 @@ from orbit import satellite
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from django.core.management.base import BaseCommand
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from network.base.models import Satellite
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from network.base.models import Satellite, Tle
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from network.base.helpers import get_latest_tle
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class Command(BaseCommand):
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@ -21,10 +22,20 @@ class Command(BaseCommand):
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continue
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obj.name = sat.name()
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tle = sat.tle()
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obj.tle0 = tle[0]
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obj.tle1 = tle[1]
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obj.tle2 = tle[2]
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obj.save()
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# Get latest satellite TLE and check if it changed
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tle = sat.tle()
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try:
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latest_tle = get_latest_tle
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if latest_tle.tle1 == tle[1]:
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self.stdout.write(('Satellite {} with Identifier {} '
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'found [defer]').format(obj.name, obj.norad_cat_id))
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continue
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except Tle.DoesNotExist:
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pass
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Tle.objects.create(tle0=tle[0], tle1=tle[1], tle2=tle[2], satellite=obj)
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self.stdout.write(('Satellite {} with Identifier {} '
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'found [updated]').format(obj.name, obj.norad_cat_id))
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@ -0,0 +1,53 @@
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# -*- coding: utf-8 -*-
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from __future__ import unicode_literals
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from django.db import migrations, models
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class Migration(migrations.Migration):
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dependencies = [
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('base', '0002_auto_20151011_1406'),
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]
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operations = [
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migrations.CreateModel(
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name='Tle',
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fields=[
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('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
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('tle0', models.CharField(max_length=100, blank=True)),
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('tle1', models.CharField(max_length=200, blank=True)),
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('tle2', models.CharField(max_length=200, blank=True)),
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('updated', models.DateTimeField(auto_now=True)),
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],
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options={
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'ordering': ['tle0'],
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},
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),
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migrations.RemoveField(
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model_name='satellite',
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name='tle0',
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),
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migrations.RemoveField(
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model_name='satellite',
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name='tle1',
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),
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migrations.RemoveField(
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model_name='satellite',
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name='tle2',
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),
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migrations.RemoveField(
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model_name='satellite',
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name='updated',
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),
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migrations.AddField(
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model_name='tle',
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name='satellite',
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field=models.ForeignKey(related_name='tles', to='base.Satellite', null=True),
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),
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migrations.AddField(
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model_name='observation',
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name='tle',
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field=models.ForeignKey(to='base.Tle', null=True),
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),
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]
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@ -100,10 +100,6 @@ class Satellite(models.Model):
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name = models.CharField(max_length=45)
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names = models.TextField(blank=True)
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image = models.ImageField(upload_to='satellites', blank=True)
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tle0 = models.CharField(max_length=100, blank=True)
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tle1 = models.CharField(max_length=200, blank=True)
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tle2 = models.CharField(max_length=200, blank=True)
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updated = models.DateTimeField(auto_now=True, blank=True)
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class Meta:
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ordering = ['norad_cat_id']
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@ -118,6 +114,20 @@ class Satellite(models.Model):
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return self.name
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class Tle(models.Model):
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tle0 = models.CharField(max_length=100, blank=True)
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tle1 = models.CharField(max_length=200, blank=True)
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tle2 = models.CharField(max_length=200, blank=True)
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updated = models.DateTimeField(auto_now=True, blank=True)
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satellite = models.ForeignKey(Satellite, related_name='tles', null=True)
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class Meta:
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ordering = ['tle0']
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def __unicode__(self):
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return self.tle0
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class Transmitter(models.Model):
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"""Model for antennas transponders."""
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uuid = ShortUUIDField(db_index=True)
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@ -141,6 +151,7 @@ class Observation(models.Model):
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"""Model for SatNOGS observations."""
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satellite = models.ForeignKey(Satellite)
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transmitter = models.ForeignKey(Transmitter, null=True, related_name='observations')
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tle = models.ForeignKey(Tle, null=True)
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author = models.ForeignKey(User)
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start = models.DateTimeField()
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end = models.DateTimeField()
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@ -22,6 +22,7 @@ from network.base.models import (Station, Transmitter, Observation,
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Data, Satellite, Antenna)
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from network.base.forms import StationForm
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from network.base.decorators import admin_required
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from network.base.helpers import get_latest_tle
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class StationSerializer(serializers.ModelSerializer):
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@ -173,7 +174,11 @@ def prediction_windows(request, sat_id, start_date, end_date):
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'error': 'You should select a Satellite first.'
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}
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return JsonResponse(data, safe=False)
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satellite = ephem.readtle(str(sat.tle0), str(sat.tle1), str(sat.tle2))
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latest_tle = get_latest_tle(sat)
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satellite = ephem.readtle(str(latest_tle.tle0),
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str(latest_tle.tle1),
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str(latest_tle.tle2))
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end_date = datetime.strptime(end_date, '%Y-%m-%d %H:%M')
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@ -325,11 +330,12 @@ def station_view(request, id):
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for satellite in satellites:
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observer.date = ephem.date(datetime.today())
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latest_tle = get_latest_tle(satellite)
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try:
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sat_ephem = ephem.readtle(str(satellite.tle0),
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str(satellite.tle1),
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str(satellite.tle2))
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sat_ephem = ephem.readtle(str(latest_tle.tle0),
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str(latest_tle.tle1),
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str(latest_tle.tle2))
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# Here we are going to iterate over each satellite to
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# find its appropriate passes within a given time constraint
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