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_name_54 (closest_approach VARCHAR, launched VARCHAR)

### Question ###
With a Launched of 3 July 1998 what is the Closest approach?

### Accurate SQL ###

SELECT closest_approach FROM table_name_54 WHERE launched = "3 july 1998"