Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Purple Mountain Observatory
Table title:
List of discovered minor planets (1955–1983)
Table:
<table id='hittask' contenteditable='False'>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2363 Cebriones </td><td colspan=1 rowspan=1 > 4 October 1977 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2380 Heilongjiang </td><td colspan=1 rowspan=1 > 18 September 1965 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2387 Xi'an </td><td colspan=1 rowspan=1 > 17 March 1975 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2398 Jilin </td><td colspan=1 rowspan=1 > 24 October 1965 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2425 Shenzhen </td><td colspan=1 rowspan=1 > 17 March 1975 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2456 Palamedes </td><td colspan=1 rowspan=1 > 30 January 1966 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2503 Liaoning </td><td colspan=1 rowspan=1 > 16 October 1965 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2505 Hebei </td><td colspan=1 rowspan=1 > 31 October 1975 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2510 Shandong </td><td colspan=1 rowspan=1 > 10 October 1979 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2514 Taiyuan </td><td colspan=1 rowspan=1 > 8 October 1964 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2515 Gansu </td><td colspan=1 rowspan=1 > 9 October 1964 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2539 Ningxia </td><td colspan=1 rowspan=1 > 8 October 1964 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2547 Hubei </td><td colspan=1 rowspan=1 > 9 October 1964 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2592 Hunan </td><td colspan=1 rowspan=1 > 30 January 1966 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2617 Jiangxi </td><td colspan=1 rowspan=1 > 26 November 1975 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2631 Zhejiang </td><td colspan=1 rowspan=1 > 7 October 1980 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2632 Guizhou </td><td colspan=1 rowspan=1 > 6 November 1980 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2655 Guangxi </td><td colspan=1 rowspan=1 > 14 December 1974 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2693 Yan'an </td><td colspan=1 rowspan=1 > 3 November 1977 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2719 Suzhou </td><td colspan=1 rowspan=1 > 22 September 1965 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2729 Urumqi </td><td colspan=1 rowspan=1 > 18 October 1979 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2743 Chengdu </td><td colspan=1 rowspan=1 > 21 November 1965 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2752 Wu Chien-Shiung </td><td colspan=1 rowspan=1 > 20 September 1965 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2778 Tangshan </td><td colspan=1 rowspan=1 > 14 December 1979 </td><td colspan=1 rowspan=1 > list </td></tr>
<tr> <td colspan=1 rowspan=1 > 2789 Foshan </td><td colspan=1 rowspan=1 > 6 December 1956 </td><td colspan=1 rowspan=1 > list </td></tr>
</table>
Question:
How many Cebriones and Palamedes asteroids have been discovered at Purple Mountain Observatory?
Answer:
In Purple Mountain Observatory, 2363 Cebriones and 2456 Palamedes asteroids were discovered.