HOP 0484

abstract of observational proposal

Main Objective: Coordinate observations with SUNRISE-III balloon-borne telescope

Scientific Justification: This is the third flight of Sunrise. Three new instruments are installed on Sunrise: Sunrise Ultra-violet Spectropolarimeter and Imager (SUSI), Tunable Magnetograph (TuMag), and Sunrise Chromospheric Infrared spectra-Polarimeter (SCIP).

Owing to these three instruments, Sunrise can obtain magnetic fields at multiple heights from the lower photosphere to the chromosphere by observing multiple spectrum lines. By utilizing these new instruments, Sunrise will challenge the various science targets such as:
- interactions between the surface convection and magnetic fields and the chromospheric response
- spatial distribution of the quiet Sun magnetic fields and its origin
- the excitation and propagation of MHD waves
- formation mechanism of chromospheric jets
- magnetoconvection and flux cancellation in moat region
- temporal evolutions of sunspot and surrounding plage region

Hinode and IRIS can perform complemental observations. Polarimetric observations of Fe I 630.2 nm lines with high spatial and spectral resolutions by SP are useful for this campaign observation. The observations of the upper chromosphere, transition region, and corona are important to investigate the connection between the lower and the upper atmospheric layers.

request to SOT

Basic observation mode for QS and AR on disk:
Normal map over a FOV of 102” x 102” (program ID: SP 0x100)

Alternative option #1:
Normal map over a FOV of 82” x 102” (0x249) or 82” x 82” (0x1b4)
Use this narrow FOV version when the observation window is strictly enforced by eclipse and SAA and for limb observation.

Alternative option #2:
Fast map over a FOV of 132” x 132” (0xdb)
When the telemetry is limited. Only for on-disk observations.
The normal map scan with a FOV of 102”x102” requires telemetry of about 0.4 Gbits. The maximum number of scans is 5 per day if the available telemetry is 2 Gbits.

request to EIS

QS observations:
Baseline: EIS study #533 (CompS_NonMax_90_) - 90 sec exposure time, duration is ~1 hr, FOV is 80”x512”.
Sit & stare: EIS study #587 - 100 sec exposure time, FOV is 2”x512”. Context EIS study #577 (PRY_slot_contextLIQS).

AR observations:
Baseline: EIS study #404 (Atlas_60) - 60 sec exposure time, duration is ~1 hr, FOV is 120”x160”.
Sit & stare: EIS study #633 (HPW021VEL001x512v3) - 60 sec exposure time , FOV 2”x512”. Ccontext EIS study #577 (PRY_slot_contextLIQS).

SUNRISE ID FS1 and FS2 obs: EIS study #404 (Atlas_60) - 60 sec exposure time, duration is ~1 hr, FOV is 120”x160”.

Flare obs: SUNRISE will follow EIS flare observing sequence.

other participating instruments

IRIS requests:
QS:
3620608077 | Very large dense 320-step raster 105.3x175 320s Deep x 8 Spatial x 2 | 2921.28 |1581.47 | 0.37 | 9.1+/-0.1 | 2921+/-0 | 36.5+/-0.0 | 36.5+/-0.0 | 36.5+/-0.0 | 36.5+/-0.0
Followed by 2 (or more) hours of:
3620108046 | Very large dense 32-step raster 10.24x175 32s Deep x 8 Spatial x 2, | 293.74 |205.19 | 0.48 | 9.2+/-0.1 | 294+/-0 | 36.7+/-0.0 | 36.7+/-0.0 | 36.7+/-0.0 | 36.7+/-0.0

And finish again with:
3620608077 | Very large dense 320-step raster 105.3x175 320s Deep x 8 Spatial x 2 | 2921.28 |1581.47 | 0.37 | 9.1+/-0.1 | 2921+/-0 | 36.5+/-0.0 | 36.5+/-0.0 | 36.5+/-0.0 | 36.5+/-0.0

AR:
3620258477 | Very large dense 320-step raster 105.3x175 320s Si IV Mg II h/k M | 2995.65 | 6277.94 |1.43 | 9.4+/-0.1 | 2996+/-0 | 0.0+/-0.0 | 23.4+/-8.2 | 18.7+/-0.1 | 93.6+/-0.0

Low datarate alternative
3620108477 | Very large dense 320-step raster 105.3x175 320s Si IV Mg II h/k M | 2923.58 |2051.85 | 0.48 | 9.1+/-0.1 | 2924+/-0 | 0.0+/-0.0 | 22.9+/-8.1 | 18.3+/-0.1 | 91.4+/-0.0

But then follow this by 2 (or more) hours of higher-cadence runs with:
3620256457 | Very large dense 64-step raster 20.8x175 64s Si IV Mg II h/k Mg I | 343.43 |1255.59 | 2.49 | 5.4+/-0.1 | 343+/-0 | 0.0+/-0.0 | 14.4+/-5.2 | 10.7+/-0.1 | 42.9+/-

Low datarate alternatives:
3620106457 | Very large dense 64-step raster 20.8x175 64s Si IV Mg II h/k Mg I | 329.34 |410.37 | 0.85 | 5.1+/-0.1 | 329+/-0 | 0.0+/-0.0 | 13.8+/-5.1 | 10.3+/-0.1 | 41.2+/-0.0
Or even lower:
3620106456 | Large dense 64-step raster 20.8x120 64s Si IV Mg II h/k Mg II w s | 328.24 |253.53 | 0.52 | 5.1+/-0.1 | 328+/-0 | 0.0+/-0.0 | 13.8+/-5.1 | 10.3+/-0.1 | 41.0+/-0.0

Follow this again with a slow scan:
3620258477 | Very large dense 320-step raster 105.3x175 320s Si IV Mg II h/k M | 2995.65 | 6277.94 |1.43 | 9.4+/-0.1 | 2996+/-0 | 0.0+/-0.0 | 23.4+/-8.2 | 18.7+/-0.1 | 93.6+/-0.0

Low datarate alternative
3620108477 | Very large dense 320-step raster 105.3x175 320s Si IV Mg II h/k M | 2923.58 |2051.85 | 0.48 | 9.1+/-0.1 | 2924+/-0 | 0.0+/-0.0 | 22.9+/-8.1 | 18.3+/-0.1 | 91.4+/-0.0

Limb:
3620108704 | Very large sit-and-stare 0.3x175 1s Mg II h/k Mg II w s Deep x 8 Sp | 55.09 |38.47 | 0.48 | 9.2+/-0.1 | 9.2+/-0.1 | 0.0+/-0.0 | 0.0+/-0.0 | 11.2+/-4.1 | 55.1+/-0.0

Low datarate alternative:
3620108703 | Large sit-and-stare 0.3x120 1s Mg II h/k Mg II w s Deep x 8 Spatial | 54.98 |23.74 | 0.29 | 9.2+/-0.1 | 9.2+/-0.1 | 0.0+/-0.0 | 0.0+/-0.0 | 11.2+/-4.1 | 55.0+/-0.0

SUNRISE:
Previous flights: HOPs 0120, 0231, and 0437

remarks

Dates: We ask for Hinode support during the entire flight of the SUNRISE balloon. The flight duration is estimated to be up to 6 days. The exact date of the flight is not known. The sunrise launch window opens on May 25 (earliest possible launch date) and closes on July 12 (latest possible landing date).

Time window: Observations during the following periods are ideal for co-observations with
ground-based telescopes:
08:00 - 12:00 UT (SST & GREGOR)
16:00 - 22:00 UT (BBSO)
18:00 - 24:00 UT (DKIST)

Target(s) of interest: QS: magnetism and convective dynamics
AR: dynamics in moat region and plage as well as sunspot evolution
E-W Limb: off-limb spicules

Additional remarks:
The planned and the actual Sunrise pointing and the observing modes of the instruments will be displayed on a website (http://www2.mps.mpg.de/services/sunrise/sot/index.html). To determine the targets and tracking curves, we request the Hinode team to follow this pointing information. After the upload of the Hinode planning file, Sunrise attempts to follow the Hinode coordination. IRIS is required to follow the Hinode coordination and the website information.

Time Period for Observations:
We ask for Hinode support during the entire flight of the SUNRISE balloon. The flight duration is estimated to be up to 6 days. The exact date of the flight is not known. The sunrise launch window opens on May 25 (earliest possible launch date) and closes on July 12 (latest possible landing date). During this
period the procedure for the Sunrise flight is as follows (all times are MESZ = UTC + 2h):
1. Day before launch, 14:00: Weather briefing, if predictions are good, ‘go-ahead’ for launch preparations.
2. Launch day, 01:00: start of payload launch preparations (instrument functional check-out,
instrument roll-out in front of integration hall, mounting solar panels, wind shields, antennas, ballast hoppers etc.)
3. Continuous weather monitoring regarding surface and mid altitude winds throughout the night and early morning, 2-3 sounding balloon launches
4. Launch day, 04:00: instrument switch-on in stand-by, instrument check-out,
5. Launch day, 05:00: roll-out to launch pad, antenna check-out.
6. Wait for optimum weather conditions.
7. L-2,5 hours: Roll-out of balloon film and helium filling -> decision of launch.
8. Launch (usually approx. 07:30-10:00)
9. L+2,5 hours: balloon is at float, instrument commissioning, and telescope and LISS co-alignment, pointing system parameter tuning.
10.L+ ~5 hours: start of observations.