Merge pull request #235286 from kellydevens/patch-41

Update modem-chain.md

Author: prmerger-automator[bot]

articles/orbital/modem-chain.md

@@ -51,11 +51,11 @@ Select 'Raw XML' and then **paste the modem config raw (without JSON escapement)
 ### Named modem configuration
 We currently support the following named modem configurations. 
 
-| Public Satellite Service | Named modem string | Note |
+| **Public Satellite Service** | **Named modem string** | **Note** |
 |--|--|--|
 | Aqua Direct Broadcast | aqua_direct_broadcast | This is NASA AQUA's 15-Mbps direct broadcast service |
 | Aqua Direct Playback | aqua_direct_playback | This is NASA's AQUA's 150-Mbps direct broadcast service |
-| Terra Direct Broadcast | terra_direct_broadcast | This is NASA Terra's 8.3-Mbps direct broadcast service |
+| Terra Direct Broadcast | terra_direct_broadcast | This is NASA Terra's 13.125-Mbps direct broadcast service |
 | SNPP Direct Broadcast | snpp_direct_broadcast | This is NASA SNPP 15-Mbps direct broadcast service |
 | JPSS-1 Direct Broadcast | jpss-1_direct_broadcast | This is NASA JPSS-1 15-Mbps direct broadcast service |
 
@@ -64,6 +64,14 @@ We currently support the following named modem configurations.
 > 
 > Orbital does not have control over the downlink schedules for these public satellites. NASA conducts their own operations which may interrupt the downlink availabilities.
 
+ | **Spacecraft Title**    | **Aqua**  |**Suomi NPP**|**JPSS-1/NOAA-20**| **Terra** |
+ | :---                    |  :----:   |    :----:   |     :----:       | :----:    |
+ | `noradId:`              | 27424     | 37849       | 43013            | 25994     |
+ | `centerFrequencyMhz:`   | 8160,     | 7812,       | 7812,            | 8212.5,   |
+ | `bandwidthMhz:`         | 15        | 30          | 30               | 45        |
+ | `direction:`            | Downlink, | Downlink,   | Downlink,        | Downlink, |
+ | `polarization:`         | RHCP      | RHCP        | RHCP             | RHCP      |
+
 #### Specifying a named modem configuration using the API
 Enter the named modem string into the demodulationConfiguration parameter when using the API.