Merge pull request #1257 from talister/1256-fix-jd-refs

Fix incorrect references to Julian Date which are actually MJD

Author: jchate6

tom_targets/base_models.py

@@ -242,7 +242,7 @@ class BaseTarget(models.Model):
     :param scheme: Orbital Element Scheme
     :type scheme: str
 
-    :param epoch_of_elements: Epoch of elements in JD.
+    :param epoch_of_elements: Epoch of elements as Modified Julian Date (MJD).
     :type epoch_of_elements: float
 
     :param mean_anomaly: Angle in degrees.
@@ -266,7 +266,7 @@ class BaseTarget(models.Model):
     :param semimajor_axis: Semimajor Axis in AU
     :type semimajor_axis: float
 
-    :param epoch_of_perihelion: Julian Date.
+    :param epoch_of_perihelion: Time of perihelion as a Modified Julian Date (MJD).
     :type epoch_of_perihelion: float
 
     :param ephemeris_period: Ephemeris period in days
@@ -352,7 +352,7 @@ class Permissions(models.TextChoices):
         max_length=50, choices=TARGET_SCHEMES, verbose_name='Orbital Element Scheme', default='', blank=True
     )
     epoch_of_elements = models.FloatField(
-        null=True, blank=True, verbose_name='Epoch of Elements', help_text='Julian date.'
+        null=True, blank=True, verbose_name='Epoch of Elements', help_text='Modified Julian date.'
     )
     mean_anomaly = models.FloatField(
         null=True, blank=True, verbose_name='Mean Anomaly', help_text='Angle in degrees.'
@@ -379,7 +379,7 @@ class Permissions(models.TextChoices):
         null=True, blank=True, verbose_name='Semimajor Axis', help_text='In AU'
     )
     epoch_of_perihelion = models.FloatField(
-        null=True, blank=True, verbose_name='Epoch of Perihelion', help_text='Julian Date.'
+        null=True, blank=True, verbose_name='Epoch of Perihelion', help_text='Modified Julian Date.'
     )
     ephemeris_period = models.FloatField(
         null=True, blank=True, verbose_name='Ephemeris Period', help_text='Days'

tom_targets/migrations/0027_alter_basetarget_epoch_of_elements_and_more.py

@@ -0,0 +1,33 @@
+# Generated by Django 4.2.19 on 2025-07-17 23:32
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("tom_targets", "0026_alter_basetarget_permissions"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="basetarget",
+            name="epoch_of_elements",
+            field=models.FloatField(
+                blank=True,
+                help_text="Modified Julian date.",
+                null=True,
+                verbose_name="Epoch of Elements",
+            ),
+        ),
+        migrations.AlterField(
+            model_name="basetarget",
+            name="epoch_of_perihelion",
+            field=models.FloatField(
+                blank=True,
+                help_text="Modified Julian Date.",
+                null=True,
+                verbose_name="Epoch of Perihelion",
+            ),
+        ),
+    ]