Table:
text: Corona (satellite)
Launches
Launches
Mission_No_ Cover_Name Launch_Date NSSDC_ID_No_ Alt_Name Camera Notes
R&D Discoverer 21 Jan 1959 1959-E01 1959-E01 none Mission Failed. Failed to achieve orbit
R&D Discoverer 1 28 Feb 1959 1959-002A 1959 BET none First object in polar orbit
R&D Discoverer 3 03 Jun 1959 DISCOV3 1959-F02 none Mission failed. Failed to achieve orbit
9001 Discoverer 4 25 Jun 1959 DISC4 1959-U01 KH-1 Mission failed. Failed to achieve orbit.
9002 Discoverer 5 13 Aug 1959 1959-005A 1959 EPS 1 KH-1 Mission failed. Power supply failure. No recovery.
9004 Discoverer 7 07 Nov 1959 1959-010A 1959 KAP KH-1 Mission failed. Failed to achieve orbit.

Question: What are the notes of the satellite whose nssdc id number is 1959-002a under corona (satellite)?