HOP 0437

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 observations.

Alternative option #2:
Fast map over a FOV of 123” x 123” (0xdb)
When the telemetry is limited. Only for on-disk observations.

The normal map scan with a FOV of 102” x 102” 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

We request EIS to observe the EUV lines in active regions with both high and low cadence modes as well as to perform context observations in quiet regions. In addition, spectral atlas observations are desirable when SUNRISE performs the SUSI full spectral scan (SUNRISE Obs-ID: FS1 for QS, FS2 for plage) observations.

<Candidate EIS studies>

QS observations: ID319, 300
SUSI full spectral scans: ID404 (5.6 hours for each of FS1 and FS2)

AR observations:
Low cadence: ID241, 555, 382
High cadence: ID566 (~ 2 hours when SUNRISE Obs-ID AR2 is conducted)

Flare observations: ID461
Although the priority of flare observation is not high as the default, the priority can increase in the case of Major Flare Watch.

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

Additional instrument coordination: SST, GREGOR, and ALMA

remarks

Website URL: http://www2.mps.mpg.de/services/sunrise/sot/index.html

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 June 28 (earliest possible launch date) and closes on July 18 (latest possible landing date).

Time window: Observation between 08:00 and 12:00 UT is ideal for co-observations with SST and GREGOR. There are two slots of co-observations with ALMA between 13:00 and15:00 UT.

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

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 June 28 (earliest possible launch date) and closes on July 18 (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.

Previous HOPs:

Previous flights: HOPs 0120 and 0231

Additional remarks:
The planned and the actual Sunrise pointing and the observing modes of the instruments will be displayed on a website (in prep). 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.