SOT: HOP 101 helioseismology
2010-09-10T18:14:00 to 2010-09-11T02:09:35
Science Goal: Helioseismology Observations of the Sun?fs polar regions with SOT
Program: HOP101: CaH 4x4 22ms + 5896LC, 2x2+2x2 100ms, Q50 for helioseismology
Target: N Pole
xcen=-11 ycen=890
Instrument: SOT
HOP/JOP: 101
Description:
-~1-min cadence. Constant cadence is highly required for our helioseismology analyses. -Continuous observation for 16 hours at least. -The limb should be included in the field of view for co-alignment. -The field of view should be fixed. No tracking. -NFI: Fe I 557.6nm Dopplergram (if telemetry allows) -BFI: Ca II H (this is the primary data set) -If NFI takes 1024x512 Dopplergrams (Q65) with 4x4 summing and BFI takes 2048x1024 images (Q50) with 2x2 summing program ID: 0x1f5, (see below, however), estimated data volume is 1.2 Gbits for 16-hr run. (Note: this is the reduced telemetry version, original used 3.13 Gbits.) -If we use only NFI, taking 2048x1024 Dopplergrams with 2x2 summing, estimated data volume is less than 450Mbits per hour if the compression factor is set at Q75. [note on 03 March 2010] - To be run every 3 day, or twice a week, for March 2010. - Since September 2009, program 0x351 is used (see the program run from 3:49UT, 25 Sep 2009 and from 19:04UT, 03 March, 2010). Fe I intensity and Dopplergram datasets and a Ca II H intensity dataset are taken with 4x4 summing.
