update web database download

Site/help/xephem.html

@@ -6505,6 +6505,12 @@ single letter designation from the following set (case <span
             <td style="vertical-align: top;">fixed (or at most exhibits
 constant curvilinear proper motion)</td>
           </tr>
+          <tr>
+          <tr>
+            <td style="vertical-align: top; font-weight: bold;"> B<br>
+            </td>
+            <td style="vertical-align: top;">true binary pair with known features</td>
+          </tr>
           <tr>
             <td style="vertical-align: top; font-weight: bold;"> e<br>
             </td>
@@ -7984,11 +7990,11 @@ used for Earth satellite. The file is saved in the <a
 format if it is not already.<br>
 <br>
 Several particularly useful sites as of this build are already entered.
-The first three are from Dr. TS Kelso's Earth satellite lists at <a
+The first five are from Dr. TS Kelso's Earth satellite lists at <a
  href="http://www.celestrak.com">celestrak.com</a>. The other four are
 the Minor Planet Center's lists of hot comets and unusual asteroids
 specially formatted for <a
- href="http://cfa-www.harvard.edu/iau/Ephemerides/Soft03.html">XEphem</a>.
+ href="https://www.minorplanetcenter.net/iau/Ephemerides/Soft03.html">XEphem</a>.
 Click <span style="font-weight: bold;">Get</span> beside the desired
 catalog to download the file to the Private directory and
 simultaneously load into XEphem memory.<br>
@@ -8006,7 +8012,7 @@ for convenience. One file will contain all asteroids which can ever
 become brighter than magnitude 13, and the other (with a "_dim" suffix)
 contains all the rest. All files are created in the user's Private
 XEphem directory. The real work is performed by two perl scripts,
-mpcorb.pl and astorb.pl, respectively. These may be run independently
+mpcorb2edb.pl and astorb2edb.pl, respectively. These may be run independently
 of XEphem if desired.<br clear="all">
 <br>
 <br>