diff --git a/Reports/Radiation/Comparison of Orbital Proton Fluences.pdf b/Reports/Radiation/Comparison of Orbital Proton Fluences.pdf
new file mode 100644
index 0000000..6d4829b
Binary files /dev/null and b/Reports/Radiation/Comparison of Orbital Proton Fluences.pdf differ
diff --git a/Reports/Radiation/Readme.md b/Reports/Radiation/Readme.md
new file mode 100644
index 0000000..cd5a4ea
--- /dev/null
+++ b/Reports/Radiation/Readme.md
@@ -0,0 +1,11 @@
+## Orbital Radiaition Reports Directory
+The following is a listing of reports found in this directory, along with their abstracts.
+
+### Comparison of Orbital Proton Fluences For Proposed STP: Pearl Mission Orbits
+
+This paper compares proton fluxes for four proposed STP:Pearl mission orbits: the OHB Aero-
+space MEO orbit; the Molniya HEO orbit; the TESS P/2 HEO orbit, and the Spitzer Earth Trailing
+orbit (ETO); for more detail on individual orbits, see the STP Orbital Comparison memo. The proton
+fluences are the result of SPENVIS modeling, with the exception of the ETO, which is cited from
+Spitzer data. Illustrations of the orbital paths and their proximity to the Van Allen Radiation Belts
+are also presented.
diff --git a/radiation.md b/radiation.md
index 8992c65..c4b4fb1 100644
--- a/radiation.md
+++ b/radiation.md
@@ -1,3 +1,6 @@
+To go to the radiation reports directory:
+
+[Radiaition Reports](/Reports/Radiation/Readme.md)
 
 Radiation effects and COTS electronics reading list: