Successful space launches include all military, commercial, and government launches that deliver a payload to the proper orbit and location.
NOTE: The three-month moving average is the average number of successful launches for the most recent month and two preceding months. Launches per month have been adjusted for a 30-day month. The actual number of launches during a month is multiplied by the ratio of 30 to the number of days in that month to yield the adjusted number of launches for that month.
|Successful Space Launches (three-month moving average)||Sep-01||Sep-02|
|United States of America||2.9||1.0|
|Percentage change from same month previous year||12.40||-66.54|
|Percentage change from same month previous year||-64.32||100.66|
SOURCE: U.S. Department of Transportation, Federal Aviation Administration, Associate Administrator for Space Transportation, Weekly Orbital Launch Update, October 15, 2002.