User Manual
Doc. Number: ESO-323064
Doc. Version: 2
Released on:
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Document Classification: Public
5. PHASE I: Observing Proposal Preparation
5.1 Instrument modes offered in P108
The properties of the CRIRES modes offered in P108 are summarized in Table 4.
Table 4: Summary of the instrument modes
Instrument Mode
Observing Wavelength
Resolution
Spectroscopy (AO and NoAO)
29 settings (950 nm
–
5300 nm)
50,000
(0.4” slit)
and
100,000
(0.2” slit)
Please note the following restrictions:
•
Only on-axis AO observations are offered, i.e., Target = AO Natural Guide Star
(NGS)
•
AO observations with thick cloud are not allowed
•
The NGS star must be in the magnitude range: 0.2 < R < 15
•
Guiding is only allowed on-target, i.e., Target = Slit Viewer Guiding Star (SVGS)
•
Observations are offered in stare mode and nodding along the slit
•
Observations are offered with sidereal and non-sidereal tracking
•
Large and monitoring programmes with CRIRES are not
offered
5.2 Phase I: General information and User Constraints
As for all Paranal instruments, there are two Phases (I and II) in the application for time with
CRIRES. Phase I starts with the Call for Proposals issued by ESO twice per year. At each
call
2
, users must create a proposal with p1, the web-based tool for proposal preparation
available at
. Using this tool, user is requested to provide both scientific
rational and technical details of the proposed observations. In particular, one or more
observing runs must be created for any requested instrument and, in some cases, any
instrument modes. An observing run is uniquely defined by:
•
Requested instrument and telescope
•
Type (see §4 of Call for Proposal)
•
Telescope time, which includes instrument and telescope overheads (see §5.4)
•
Observing constraints set, consisting of Moon phase (see §5.2.3), Turbulence
Category (see §5.2.1), atmospheric transmission (see §5.2.2), sky transparency and
airmass
•
Observing mode: Service or Visitor
2
An exception is represented by the DDT proposals, which can be submitted at any time during the
observing period (see http://www.eso.org/sci/observing/policies/ddt_policy.html)