1. ASF Review
Acquisition Plan

2. Acquisition Requirements
3 complete cycles ascending and descending
Maximize spatial coverage and coherence
Mapping to occur during same period as AIC-1
Use beams S6, S2, S1, EL1 and F1
S3, 4, 5, and 7 as contingency

3. Acquisition Strategy Sept to Oct 2000, north-looking mode.
Complete ascending and descending coverage.
Maximize fine beam coverage of high priority areas.
Maximize use of S6, followed by S2, S1 and El-1 to increase probability of coherent IFSAR data.

4. Acquisition Strategy (cont)
OBR data down-linked to N. Hemisphere GRS’s
McMurdo GRS used for real-time data
Minimize complexity
Minimize impact on other users while meeting mission objectives

5. MAMM-2 Acquisition Plans
Three plans, all identical. First data take:
orbit , 19:35:57 UTC 3 Sept
orbit , 19:35:57 UTC 27 Sept
orbit , 19:35:057 UTC 21 Oct
Any replanning done in first cycle will become “nominal” plan for remaining two

6. SAR & Station Usage Total SAR on-time: 1557.6 min
RTM: min
OBR: 619.6
Total Number of Data Acquisitions: 819*
RTM: 531
OBR: 288
Fairbanks: 267
Gatineau:
Prince Albert: 18

7. Coverage Errata Standard-5 used on 3 occasions in ascending plan
Complete coverage not attained in descending plan
4 small holes near Amery Ice Sheet

8. Replanning Rules Limited to first cycle (73)
One complete map is highest priority for cycle-73 (may be assembled from asc and desc coverage)
If only partial coverage possible, target high priority areas
Cycle-73, 74 IFSAR coverage over high priority targets more important than complete IFSAR coverage

9. Replanning Rules (cont)
Acquisition of gaps in AIC-1 IFSAR higher priority than areas already covered n AIC-1
Acquisition of gaps in ERS Tandem coverage are higher priority than areas covered during Tandem mission