diff --git a/clients/client-groundstation/src/models/models_0.ts b/clients/client-groundstation/src/models/models_0.ts
index aeed48fd0938..4e0871d4ff52 100644
--- a/clients/client-groundstation/src/models/models_0.ts
+++ b/clients/client-groundstation/src/models/models_0.ts
@@ -2092,13 +2092,7 @@ export interface S3Object {
  *             Ephemeris data in Orbit Ephemeris Message (OEM) format.
  *         </p>
  *          <p>
- *             Position, velocity, and acceleration units must be represented in <code>km</code>, <code>km/s</code>, and
- *             <code>km/s**2</code>, respectively, in ephemeris data lines. Covariance matrix line units must be
- *             represented in <code>km**2</code> if computed from two positions, <code>km**2/s</code> if computed from one
- *             position and one velocity, and <code>km**2/s**2</code> if computed from two velocities. Consult section
- *             7.7.2 of The Consultative Committee for Space Data Systems (CCSDS)
- *             <a href="https://public.ccsds.org/Pubs/502x0b3e1.pdf">Recommended Standard for Orbit Data Messages</a>
- *             for more information.
+ *             AWS Ground Station processes OEM Customer Provided Ephemerides according to the <a href="https://public.ccsds.org/Pubs/502x0b3e1.pdf">CCSDS standard</a> with some extra restrictions. OEM files should be in KVN format. For more detail about the OEM format that AWS Ground Station supports, see <a href="https://docs.aws.amazon.com/ground-station/latest/ug/providing-custom-ephemeris-data.html#oem-ephemeris-format">OEM ephemeris format</a> in the AWS Ground Station user guide.
  *         </p>
  * @public
  */
@@ -2201,13 +2195,7 @@ export namespace EphemerisData {
    *             Ephemeris data in Orbit Ephemeris Message (OEM) format.
    *         </p>
    *          <p>
-   *             Position, velocity, and acceleration units must be represented in <code>km</code>, <code>km/s</code>, and
-   *             <code>km/s**2</code>, respectively, in ephemeris data lines. Covariance matrix line units must be
-   *             represented in <code>km**2</code> if computed from two positions, <code>km**2/s</code> if computed from one
-   *             position and one velocity, and <code>km**2/s**2</code> if computed from two velocities. Consult section
-   *             7.7.2 of The Consultative Committee for Space Data Systems (CCSDS)
-   *             <a href="https://public.ccsds.org/Pubs/502x0b3e1.pdf">Recommended Standard for Orbit Data Messages</a>
-   *             for more information.
+   *             AWS Ground Station processes OEM Customer Provided Ephemerides according to the <a href="https://public.ccsds.org/Pubs/502x0b3e1.pdf">CCSDS standard</a> with some extra restrictions. OEM files should be in KVN format. For more detail about the OEM format that AWS Ground Station supports, see <a href="https://docs.aws.amazon.com/ground-station/latest/ug/providing-custom-ephemeris-data.html#oem-ephemeris-format">OEM ephemeris format</a> in the AWS Ground Station user guide.
    *         </p>
    * @public
    */
diff --git a/codegen/sdk-codegen/aws-models/groundstation.json b/codegen/sdk-codegen/aws-models/groundstation.json
index 0dc8634340dd..38831011b697 100644
--- a/codegen/sdk-codegen/aws-models/groundstation.json
+++ b/codegen/sdk-codegen/aws-models/groundstation.json
@@ -4979,7 +4979,7 @@
         }
       },
       "traits": {
-        "smithy.api#documentation": "<p>\n            Ephemeris data in Orbit Ephemeris Message (OEM) format.\n        </p>\n         <p>\n            Position, velocity, and acceleration units must be represented in <code>km</code>, <code>km/s</code>, and\n            <code>km/s**2</code>, respectively, in ephemeris data lines. Covariance matrix line units must be\n            represented in <code>km**2</code> if computed from two positions, <code>km**2/s</code> if computed from one\n            position and one velocity, and <code>km**2/s**2</code> if computed from two velocities. Consult section\n            7.7.2 of The Consultative Committee for Space Data Systems (CCSDS)\n            <a href=\"https://public.ccsds.org/Pubs/502x0b3e1.pdf\">Recommended Standard for Orbit Data Messages</a>\n            for more information.\n        </p>"
+        "smithy.api#documentation": "<p>\n            Ephemeris data in Orbit Ephemeris Message (OEM) format.\n        </p>\n         <p>\n            AWS Ground Station processes OEM Customer Provided Ephemerides according to the <a href=\"https://public.ccsds.org/Pubs/502x0b3e1.pdf\">CCSDS standard</a> with some extra restrictions. OEM files should be in KVN format. For more detail about the OEM format that AWS Ground Station supports, see <a href=\"https://docs.aws.amazon.com/ground-station/latest/ug/providing-custom-ephemeris-data.html#oem-ephemeris-format\">OEM ephemeris format</a> in the AWS Ground Station user guide.\n        </p>"
       }
     },
     "com.amazonaws.groundstation#PaginationMaxResults": {