Observing Season and applications for observing time

General Info

Due to changes in setup and instrumentation, the observing season 2019 will be split into two halves: April - beginning of August and from mid August - end of November, 2019. 


GREGOR/VTT – 2019A (Apr 28 – Aug 1)

 The call for proposals for 2019A is closed. The next call (for 2019B) will open in April or May.


GREGOR Observing plan 2019 (updated Apr 15, 2019):



Instrumentation available for the first season is:
•    GRIS IFU (image slicer) at wavelengths 1.0–1.3 or 1.5–1.8 microns. This instrument can record spatial and spectral information simultaneously in a FOV of 6”x3”. Simultaneous H-alpha and continuum slitjaw images are available.
•    Fast context imaging in any wavelength below 900 nm (below 480 nm if using GFPI) if a suitable filter is available or provided by the observers.
•    Imaging spectroscopy (no polarimetry) with GFPI at wavelengths below 860 nm. This instrument is available only in collaboration with AIP and please contact them before proposal submission.
Please see our website (http://www.leibniz-kis.de/de/observatorien/gregor/scientific-instruments/) for the current capabilities and restrictions.


•    The chromospheric grating for spectroscopy in up to 3 spectral regions simultaneously
•    Own instrument setups

Instrumentation foreseen for the second season is:
•    GRIS: slit spectropolarimetry at wavelengths 1.0–1.3 or 1.5–1.8 microns. Fast context imaging. Imaging spectroscopy (no polarimetry) with GFPI.

•    The standard grating. Own instrument setups




Options for telescope access

CCI international time program (ITP):

5% of the telescope time are reserved for international access to all solar telescopes on the Canary Islands (GREGOR, VTT, THEMIS). The observing time is assigned by the EAST TAC. Anybody apart from the operator of each telescope can apply for observing time (e.g. KIS cannot apply for GREGOR or VTT time). Contact Dan Kiselman or Lucia Kleint for more information.

Spanish time (solar CAT)

See www.iac.es/OOCC/solar-cat/ for more information. According to international agreements, 20% of the observing time is reserved for assignment by the Spanish solar CAT. Presently, there are no restrictions on nationality to apply for GREGOR and VTT time through the solar CAT.


A total of 40 days (GREGOR) or 20 days (VTT) are available for SOLARNET observers in 2019. The observing time is assigned by the EAST TAC.

German time

(split 20%/20%/60% between the AIPMPS, and KIS, leading to effective observing times of 15%/15%/45% of the total available time). Each institute has guaranteed observing time at GREGOR and VTT. KIS decided to open their observing time with no restriction on nationality/institute provided that at least one Co-I on the observing proposal is from KIS. Contact tac@leibniz-kis.de for more information.



The proposal form for KIS time can be downloaded here and shall be submitted to tac@leibniz-kis.de:

<Proposal form 2019A [tex]>

<Preview of proposal form 2019A [pdf]>



GREGOR Observing plan 2018 (updated Oct 3, 2018):