1、Lessons Learned Entry: 1356Lesson Info:a71 Lesson Number: 1356a71 Lesson Date: 2003-07-16a71 Submitting Organization: GSFCa71 Submitted by: Bonita SeatonSubject: ADEOS-II NGN L0 Data Gap Introduction Problem Description of Driving Event: In early February 2003, JPL and NASDA reported gaps in Level 0
2、 data products received from the Wallops and Alaska ADEOS-II Data Processing Systems. Gaps in the SeaWinds product were characterized by JPL to be intermittent in nature, of variable size, and located at irregular intervals in the data products. Reprocessing of the raw data by NASDA yielded 100% dat
3、a recovery. Thus, while there was 100% data capture, data gaps were introduced by the DS resulting in approximately 8% data loss in the Level 0 product (i.e. 8 out of every 100 minutes of data was not included in the Level 0 product). These gaps were undetected at the processing station until report
4、ed by JPL and NASDA.Lesson(s) Learned: Assess full budget impacts of launch delays and plan for technology refreshRecommendation(s): Complete cost analysis should look beyond continuing current efforts and capabilities to identify new needs that might result from the launch delay. One such example i
5、s technology refresh. Another example might include the need to repeat training as the time between training and operations extends, the liklihood of personnel loss increases. When significant launch delays occur either individually or as a result of a series of delays, conduct sustaining engineerin
6、g analysis to verify that equipment aging has not become an issue. Contingency funding should be included in budgets to offset this issue. Evidence of Recurrence Control Effectiveness: N/AProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Documents Rela
7、ted to Lesson: N/AMission Directorate(s): a71 Sciencea71 Space Operationsa71 Exploration SystemsAdditional Key Phrase(s): a71 Administration/Organizationa71 Ground Equipmenta71 Ground Operationsa71 Launch ProcessAdditional Info: Approval Info: a71 Approval Date: 2003-07-29a71 Approval Name: Al Galloa71 Approval Organization: GSFCa71 Approval Phone Number: 301-286-3756Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
