Please sort the following shuttle missions in the correct historic order!SRTMSIR-C/X-SARSIR-ASIR-B

The correct historic order of these shuttle missions is:

1. SIR-A
2. SIR-B
3. SIR-C/X-SAR
4. SRTM

Here's a brief explanation:

1. SIR-A (Shuttle Imaging Radar A): This was the first of the series and was flown on Space Shuttle Columbia in November 1981.

2. SIR-B (Shuttle Imaging Radar B): This was the second mission in the series and was flown on Space Shuttle Challenger in October 1984.

3. SIR-C/X-SAR (Shuttle Imaging Radar C/X-Band Synthetic Aperture Radar): This was the third mission in the series and was flown on Space Shuttle Endeavour in April and October 1994.

4. SRTM (Shuttle Radar Topography Mission): This was the last mission in the series and was flown on Space Shuttle Endeavour in February 2000.