Updated the gradient_based_optimization tutorial with my understandin…

…g of what is going on with an explanation at a level that an engineer with a bachelors in comp sci understands - Added/updated comments for the gradient_based_optimization tutorial - Shamelessly added my name to the bottom of that tutorial so that I have something to point to for the time spend with leadership. Feel free to delete it if my explanation is terrible :-p - Added comments to initl.py - Removed unused variables in initl.py (ex method as an argument) Signed-off-by: Grant Curell [email protected]
esa · Apr 29, 2024 · 8b4c56b · 8b4c56b
1 parent 85449c0
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diff --git a/.gitignore b/.gitignore
@@ -139,3 +139,5 @@ dmypy.json
 cython_debug/
 
 .vscode
+
+.idea/
diff --git a/doc/notebooks/gradient_based_optimization.ipynb b/doc/notebooks/gradient_based_optimization.ipynb
diff --git a/doc/notebooks/tle_object.ipynb b/doc/notebooks/tle_object.ipynb
@@ -20,12 +20,17 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
-   "metadata": {},
-   "outputs": [],
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2024-04-29T14:44:40.355175Z",
+     "start_time": "2024-04-29T14:44:39.530116Z"
+    }
+   },
    "source": [
     "import dsgp4"
-   ]
+   ],
+   "outputs": [],
+   "execution_count": 1
   },
   {
    "cell_type": "markdown",
@@ -38,8 +43,23 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 93,
-   "metadata": {},
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2024-04-29T14:44:40.362812Z",
+     "start_time": "2024-04-29T14:44:40.356711Z"
+    }
+   },
+   "source": [
+    "#let us assume we have the following two lines for the TLE, plus the first line that indicates the satellite name:\n",
+    "tle_lines = []\n",
+    "tle_lines.append('0 TIMATION 1')\n",
+    "tle_lines.append('1  2847U 67053E   24063.46171465  .00000366  00000-0  27411-3 0  9994')\n",
+    "tle_lines.append('2  2847  69.9643 216.8651 0003597  77.7866 282.3646 14.02285835897007')\n",
+    "\n",
+    "#let us construct the TLE object\n",
+    "tle=dsgp4.tle.TLE(tle_lines)\n",
+    "print(tle)"
+   ],
    "outputs": [
     {
      "name": "stdout",
@@ -53,17 +73,7 @@
      ]
     }
    ],
-   "source": [
-    "#let us assume we have the following two lines for the TLE, plus the first line that indicates the satellite name:\n",
-    "tle_lines = []\n",
-    "tle_lines.append('0 TIMATION 1')\n",
-    "tle_lines.append('1  2847U 67053E   24063.46171465  .00000366  00000-0  27411-3 0  9994')\n",
-    "tle_lines.append('2  2847  69.9643 216.8651 0003597  77.7866 282.3646 14.02285835897007')\n",
-    "\n",
-    "#let us construct the TLE object\n",
-    "tle=dsgp4.tle.TLE(tle_lines)\n",
-    "print(tle)"
-   ]
+   "execution_count": 2
   },
   {
    "cell_type": "markdown",
@@ -74,8 +84,32 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 43,
-   "metadata": {},
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2024-04-29T14:44:40.368784Z",
+     "start_time": "2024-04-29T14:44:40.364047Z"
+    }
+   },
+   "source": [
+    "#let's print all TLE elements:\n",
+    "print(\"TLE elements:\")\n",
+    "print(f\"Satellite catalog number: {tle.satellite_catalog_number}\")\n",
+    "print(f\"Classification: {tle.classification}\")\n",
+    "print(f\"International designator: {tle.international_designator}\")\n",
+    "print(f\"Epoch year: {tle.epoch_year}\")\n",
+    "print(f\"Epoch day: {tle.epoch_days}\")\n",
+    "print(f\"First time derivative of the mean motion: {tle._ndot}\")\n",
+    "print(f\"Second time derivative of the mean motion: {tle._nddot}\")\n",
+    "print(f\"BSTAR drag term: {tle._bstar}\")\n",
+    "print(f\"Element set number: {tle.element_number}\")\n",
+    "print(f\"Inclination [rad]: {tle._inclo}\")\n",
+    "print(f\"Right ascension of the ascending node [rad]: {tle._nodeo}\")\n",
+    "print(f\"Eccentricity [-]: {tle._ecco}\")\n",
+    "print(f\"Argument of perigee [rad]: {tle._argpo}\")\n",
+    "print(f\"Right ascension of ascending node [rad]: {tle._nodeo}\")\n",
+    "print(f\"Mean anomaly [rad]: {tle._mo}\")\n",
+    "print(f\"Mean motion [rad/min]: {tle._no_kozai}\")"
+   ],
    "outputs": [
     {
      "name": "stdout",
@@ -101,26 +135,7 @@
      ]
     }
    ],
-   "source": [
-    "#let's print all TLE elements:\n",
-    "print(\"TLE elements:\")\n",
-    "print(f\"Satellite catalog number: {tle.satellite_catalog_number}\")\n",
-    "print(f\"Classification: {tle.classification}\")\n",
-    "print(f\"International designator: {tle.international_designator}\")\n",
-    "print(f\"Epoch year: {tle.epoch_year}\")\n",
-    "print(f\"Epoch day: {tle.epoch_days}\")\n",
-    "print(f\"First time derivative of the mean motion: {tle._ndot}\")\n",
-    "print(f\"Second time derivative of the mean motion: {tle._nddot}\")\n",
-    "print(f\"BSTAR drag term: {tle._bstar}\")\n",
-    "print(f\"Element set number: {tle.element_number}\")\n",
-    "print(f\"Inclination [rad]: {tle._inclo}\")\n",
-    "print(f\"Right ascension of the ascending node [rad]: {tle._nodeo}\")\n",
-    "print(f\"Eccentricity [-]: {tle._ecco}\")\n",
-    "print(f\"Argument of perigee [rad]: {tle._argpo}\")\n",
-    "print(f\"Right ascension of ascending node [rad]: {tle._nodeo}\")\n",
-    "print(f\"Mean anomaly [rad]: {tle._mo}\")\n",
-    "print(f\"Mean motion [rad/min]: {tle._no_kozai}\")"
-   ]
+   "execution_count": 3
   },
   {
    "cell_type": "markdown",
@@ -131,19 +146,12 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 59,
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "Semi-major axis [km]: 7264.027802311157\n",
-      "Apogee radius [km]: 888.5036731116484\n",
-      "Perigee radius [km]: 883.2779315106654\n"
-     ]
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2024-04-29T14:44:40.374357Z",
+     "start_time": "2024-04-29T14:44:40.370687Z"
     }
-   ],
+   },
    "source": [
     "#let's first define the Earth radius according to WSG-84:\n",
     "r_earth=dsgp4.util.get_gravity_constants('wgs-84')[2].numpy()*1e3\n",
@@ -154,7 +162,19 @@
     "#let's extract the TLE apogee & perigee altitudes:\n",
     "print(f\"Apogee radius [km]: {tle.apogee_alt(r_earth).numpy()*1e-3}\")\n",
     "print(f\"Perigee radius [km]: {tle.perigee_alt(r_earth).numpy()*1e-3}\")"
-   ]
+   ],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Semi-major axis [km]: 7264.027802311157\n",
+      "Apogee radius [km]: 888.5036731116484\n",
+      "Perigee radius [km]: 883.2779315106654\n"
+     ]
+    }
+   ],
+   "execution_count": 4
   },
   {
    "cell_type": "markdown",
@@ -167,9 +187,12 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 89,
-   "metadata": {},
-   "outputs": [],
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2024-04-29T14:44:40.378261Z",
+     "start_time": "2024-04-29T14:44:40.375410Z"
+    }
+   },
    "source": [
     "tle_dictionary=dict(\n",
     "                    satellite_catalog_number=43437,\n",
@@ -189,12 +212,23 @@
     "                    raan=4.3618,\n",
     "                    mean_anomaly=4.5224,\n",
     "                    b_star=0.0001)"
-   ]
+   ],
+   "outputs": [],
+   "execution_count": 5
   },
   {
    "cell_type": "code",
-   "execution_count": 92,
-   "metadata": {},
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2024-04-29T14:44:40.381821Z",
+     "start_time": "2024-04-29T14:44:40.379062Z"
+    }
+   },
+   "source": [
+    "#now the same API as above applies:\n",
+    "tle = dsgp4.tle.TLE(tle_dictionary)\n",
+    "print(tle)"
+   ],
    "outputs": [
     {
      "name": "stdout",
@@ -207,11 +241,7 @@
      ]
     }
    ],
-   "source": [
-    "#now the same API as above applies:\n",
-    "tle = dsgp4.tle.TLE(tle_dictionary)\n",
-    "print(tle)"
-   ]
+   "execution_count": 6
   },
   {
    "cell_type": "markdown",
@@ -230,8 +260,16 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 95,
-   "metadata": {},
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2024-04-29T14:44:40.385322Z",
+     "start_time": "2024-04-29T14:44:40.382613Z"
+    }
+   },
+   "source": [
+    "tles=dsgp4.tle.load('example.tle')\n",
+    "print(tles)"
+   ],
    "outputs": [
     {
      "name": "stdout",
@@ -253,10 +291,7 @@
      ]
     }
    ],
-   "source": [
-    "tles=dsgp4.tle.load('example.tle')\n",
-    "print(tles)"
-   ]
+   "execution_count": 7
   }
  ],
  "metadata": {
Original file line number	Diff line number	Diff line change
Expand Up		@@ -139,3 +139,5 @@ dmypy.json
		cython_debug/

		.vscode

		.idea/