Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_1278 ( "Mission name" text, "Lunar lander" text, "Lunar landing date" text, "Lunar blastoff date" text, "Lunar landing site" text, "Duration on lunar surface" text, "Crew" text, "Number of s EVA" real, "Total EVA Time (HH:MM)" text )

### Question ###
Name the total number of luna blastoff date for apollo 11

### Accurate SQL ###

SELECT COUNT("Lunar blastoff date") FROM table_1278 WHERE "Mission name" = 'Apollo 11'