diff --git a/README.md b/README.md
index 99122507..edcd15ed 100644
--- a/README.md
+++ b/README.md
@@ -3,3 +3,14 @@ Feature Based Scheduler for Vera C. Rubin Observatory's Legacy Survey of Space a
 
 This repository contains the scheduling algorithms for the LSST, as implemented in the Feature Based Scheduler (FBS). More documentation on the FBS is available at https://rubin-scheduler.lsst.io and in jupyter notebooks available in our [tutorials repository](https://github.com/lsst/rubin_sim_notebooks/tree/main/scheduler). 
 
+# Install From Source
+
+```
+git clone https://github.com/lsst/rubin_scheduler.git ; cd rubin_scheduler  ## clone and cd into repo
+conda create -n rubin-sim ; conda activate rubin-sim   ## optional (but recommended) new conda env
+conda install -c conda-forge --file=requirements.txt  ## install dependencies
+conda install -c conda-forge --file=test-requirements.txt  ## for running unit tests
+pip install -e .
+scheduler_download_data  ## Downloads ~500 MB of data to $RUBIN_SIM_DATA_DIR (~/rubin_sim_data if unset)
+```
+
diff --git a/pyproject.toml b/pyproject.toml
index eeb91eee..a9cdfd80 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -123,7 +123,7 @@ extend-select = [
 ]
 
 [tool.ruff.pycodestyle]
-max-doc-length = 79
+max-doc-length = 110
 
 [tool.ruff.pydocstyle]
 convention = "numpy"
diff --git a/rubin_scheduler/data/scheduler_download_data.py b/rubin_scheduler/data/scheduler_download_data.py
index 2b9c5251..0d1d6d38 100644
--- a/rubin_scheduler/data/scheduler_download_data.py
+++ b/rubin_scheduler/data/scheduler_download_data.py
@@ -32,7 +32,6 @@ def data_dict():
         "scheduler": "scheduler_2023_10_16.tgz",
         "site_models": "site_models_2023_10_02.tgz",
         "skybrightness_pre": "skybrightness_pre_2023_10_17.tgz",
-        "tests": "tests_2022_10_18.tgz",
     }
     return file_dict
 
@@ -71,13 +70,6 @@ def scheduler_download_data(file_dict=None):
         default=DEFAULT_DATA_URL,
         help="Root URL of download location",
     )
-    parser.add_argument(
-        "--orbits_pre",
-        dest="orbits",
-        default=False,
-        action="store_true",
-        help="Include pre-computed orbit files.",
-    )
     parser.add_argument(
         "--tdqm_disable",
         dest="tdqm_disable",
@@ -87,7 +79,37 @@ def scheduler_download_data(file_dict=None):
     )
     args = parser.parse_args()
 
-    dirs = args.dirs
+    download_rubin_data(
+        data_dict(),
+        dirs=args.dirs,
+        versions=args.versions,
+        force=args.force,
+        url_base=args.url_base,
+        tdqm_disable=args.tdqm_disable,
+    )
+
+
+def download_rubin_data(
+    file_dict, dirs=None, versions=False, force=False, url_base=DEFAULT_DATA_URL, tdqm_disable=False
+):
+    """Download external data blobs
+
+    Parameters
+    ----------
+    file_dict : dict
+        A dict with keys of directory names and values of remote filenames.
+    dirs : list of str
+        List of directories to download. Default (None) assumes they are in file_dict
+    versions : bool
+        If True, print the versions currently on disk. Default False.
+    force : bool
+        If True, do dowload even if data already seems to be on disk. Default False.
+    url_base : str
+        The URL to use, default to DEFAULT_DATA_URL
+    tdqm_disable : bool
+        If True, disable the tdqm progress bar. Default False.
+    """
+
     if dirs is None:
         dirs = file_dict.keys()
     else:
@@ -101,7 +123,7 @@ def scheduler_download_data(file_dict=None):
     if versions is None:
         versions = {}
 
-    if args.versions:
+    if versions:
         print("Versions on disk currently // versions expected for this release:")
         match = True
         for k in file_dict:
@@ -115,14 +137,11 @@ def scheduler_download_data(file_dict=None):
             print("Versions do not match")
             return 1
 
-    if not args.orbits:
-        dirs = [key for key in dirs if "orbits_precompute" not in key]
-
     # See if base URL is alive
-    url_base = args.url_base
+    url_base = url_base
     try:
         r = requests.get(url_base)
-        fail_message = f"Could not connect to {args.url_base} or {url_base}. Check sites are up?"
+        fail_message = f"Could not connect to {url_base} or {url_base}. Check sites are up?"
     except ConnectionError:
         print(fail_message)
         exit()
@@ -133,10 +152,10 @@ def scheduler_download_data(file_dict=None):
     for key in dirs:
         filename = file_dict[key]
         path = os.path.join(data_dir, key)
-        if os.path.isdir(path) and not args.force:
+        if os.path.isdir(path) and not force:
             warnings.warn("Directory %s already exists, skipping download" % path)
         else:
-            if os.path.isdir(path) and args.force:
+            if os.path.isdir(path) and force:
                 rmtree(path)
                 warnings.warn("Removed existing directory %s, downloading new copy" % path)
             # Download file
@@ -149,7 +168,7 @@ def scheduler_download_data(file_dict=None):
                 warnings.warn(f"{url} file size unexpectedly small.")
             # Download this size chunk at a time; reasonable guess
             block_size = 1024 * 1024
-            progress_bar = tqdm(total=file_size, unit="iB", unit_scale=True, disable=args.tdqm_disable)
+            progress_bar = tqdm(total=file_size, unit="iB", unit_scale=True, disable=tdqm_disable)
             print(f"Writing to {os.path.join(data_dir, filename)}")
             with open(os.path.join(data_dir, filename), "wb") as f:
                 for chunk in r.iter_content(chunk_size=block_size):