“Joint planning” session Preliminary instrument operation & science plans of SOT/XRT/EIS for several months after the launch. Instrument checkout and Performance verification periods There are some items to be coordinated among the plans The goal is to develop a baseline operation plan as the whole satellite in these periods. –Identify any conflicts among the three telescopes. –Define action items for further iteration before the launch.

Coordination of the 3 telescopes Primary coordination items 1.Usage of data recorder 2.Satellite pointing (Selection of field of view for the telescopes) 3.Priority of commanding during USC Contacts Initial science observing phase (Y+2months ~) 1.Scientific coordination - How to start to coordinate 3 telescopes for dedicated scientific purposes priority of scientific purposes joint observations - How to start to collaborate with other missions and observatories?

Until aperture door openings (1) Spacecraft verification and checkout phase –Y+7 ~ Y+20 (TBR) –Initial power on of telescopes (FPP, EIS) for de-contamination heater operations Instrument checkout phase (1) –Y+21 ~ Y+27 (TBD) –Between OTA side door and OTA top door –Power up full telescope systems (FPP/CTM, XRT, EIS) for instrument function checkouts

Until aperture door openings (2) Coordination needed –Usage of USC contacts for commanding Operation planning for these periods –Katsukawa generated a draft plan for entire SOT activities –Kano generated a draft plan for XRT activities –Hara generated a draft plan for EIS activities –They have estimated the duration of each activity and identified possible commanding activities for each of USC contacts Categorizing USC contacts into two purposes –Dedicated mainly for SOT activities –Dedicated mainly for XRT activities –Most of EIS commanding at each contact has very limited number of commands. Thus, EIS commanding is included in the above passes SOT XRT E E E USC1USC2 USC3 USC4

After aperture door openings (1) Instrument checkout phase (2) –Y+28 ~ Y+45 days (TBD) –First light, Check optical performances, Start image stabilizer, Start in-flight calibration –Data for in-flight calibration should be used for scientific purposes Performance verification phase –Y+46 days ~ Y+2 months (TBD) –Run combination of all the observables. The data is used for confirming performance and calibrating the observables; also available for scientific purposes. Note: Periods given below are only for SOT

After aperture door openings (2) Initial science phase for core team –Y+2 ~Y+6 months (maximum) –(Use standard (baseline) observing sequences, if no specific scientific targets exist.) –Run more complicated sequences for dedicated scientific purposes in several periods. –Start to have joint coordination of the 3 telescopes Need to discuss what kind of joint observations (science priorities) among SOT/XRT/EIS will be planned. The coordination efforts develop the operation method. Training for the regular science phase.

Telescope Initial Schedule Summary SOT XRT EIS Y+21d (rough time) Y+28d Y+45d Y+60d Side-door Top-door Clam-shell Inst. Checkout(1) Inst. Checkout(2) first light phase Performance Verification (run simple, then more complicated sequence) Initial science phase Inst. Checkout Inst. Checkout & Performance Verification Y+50d Initial observations (start from simple) Engineering Y+35d Calibration Y+42d Initial science 90days plan Pointing (proposed by SOT) Fixed at Disk center Track an AR (near disk center) Limbs Any regions (follows the following page chart) * note Y+40d

Targeting priorities 1.Track any active region on the disk 2.When no AR on disk Disk center QS studies Irradiance scans Prominence limb scans 3.Targets of Opportunity Flaring regions Active filaments Tracking priorities AR on Sun? Yes No Disk Center QS Programs Irradiance Scans AR Tracking Programs Prominence/Polar Scans Enough AR Data? No Yes

Attitude Control System Preparation (from viewpoint of telescope operation) AOCS pointing –Pointing at a fixed position –Tracking a region according to solar rotation Functional verification before opening OTA top door –Fixed pointing to tracking pointing –Tracking performance using UFSS output –Pointing changes to 4 extreme positions (i.e., limbs) After opening OTA top door –Parameter change according to SOT-UFSS misalignment –Tracking performance using SOT data Satellite pointing mainly driven by SOT because of its narrow FOV –Some requests from XRT and EIS

Usage of data recorder –Nominal allocation SOT:XRT:EIS= 70%:15%:15% –If this allocation needs to be changed for some specific purposes, each team needs to propose in operation meetings. Svalbard downlinks –Technical and support details under arrangement –Compatibility test is needed before starting nominal operation Rough plan (under negotiation) –Svalbard station attempt to receive X-band telemetry from ASTRO-F (Akari) satellite, whose C&DH system is identical to the Solar-B system. –Perform test downlinks at early phase (before OTA top door opening) to confirm that the data is correctly downlinked at Svalbard. The same data should be downlinked at USC. –Then start to have regular downlink supports. – Our desire is normal downlink supports from roughly Y+40 days – Data downlinked at USC are available very soon. But a few days delay may be expected for Svalbard data.

Micro-vibration in flight Check whether SOT image performance is influenced by micro-vibrations in flight as soon as possible. Monitor and evaluate CT signals, when telescope mechanisms, especially XRT VLS and EIS coarse mirror, are in motion. Determine the cadence of VLS exposures in instrument checkout period. –This is extremely important for image co-alignment.

Mercury transit in instrument checkout or PV phase (2006 Nov 9) Check item: - Alignment between SOT, XRT, EIS, and ground-based observations - Point spread function - Scattered light Scientific objective: A proposal from planetary scientists Diagnosis of Mercury’s atmosphere (NaD for SOT, HeII for EIS) Need to prepare the plan, although there is possibility not to observe Mercury transit.

Initial Science Observations (from roughly Y+2 months after launch) This is for initial scientific observations. Start joint observations among SOT/XRT/EIS. Also the period for establishing our operational scheme for coming regular observation period. –Start operation meetings –Science schedule coordinators –Proposal observations

Initial Science Observations (from roughly Y+2 months after launch) Science priorities Joint observations Collaboration with other missions and observatories

All plans and observations will be conducted jointly with EIS & SOT Synoptic program is currently undefined XRT Science Priorities (from Ed DeLuca)

Initial Science Observations (from roughly Y+2 months after launch) Collaboration with other missions and observatories –Start to observe the same target Target information inputs from Solar-B? –Eg. Yohkoh SXT – La Palma Swedish Telescope LMSAL collaboration 1992 May – July, only half year after the Yohkoh launch Good target coverage More coordinated observations? –Scheme on determination of observing region Preliminary target determined in Solar-B weekly meeting, final target determined in Solar-B daily meeting Coordination with TRACE? Information from other observatories, –Latest images –Occurrence of emerging flux