README web version of /home/usg/OPS/MTS/readme_xml/readme_77015301

Principal Investigator Email Address

```
jeong@astro.snu.ac.kr
```

Estimated Total Execution Time (hours, including overheads)

```
1
```

General Description

We want to measure the stellar photosphere contribution by using
AMBER in LR-HK. The angular diameter is expected to be about 5mas.
Depending on the UT baseline, fringe contrast is expected
between 0.1 and 0.7 in K band (less in H band).

Mag of IW Hya is K=1.5. The V mag is variable, could be as
bright as V=8.7 but also some mag fainter. Note the star
is very red.

In case of contact, use also arichich@eso.org please

Concerning the use of IRIS (usd email 21/2/06):
in principle we prefer not to use IRIS, in order to obtain
H and K data simultaneously, with the understanding that
the specification of the CfP77 will be respected (i.e.
at least 3% accuracy in K band) and not affected by the
lack of IRIS. Should this turn out to be contraddicted
by practical experience with/without IRIS, we would like
to be consulted again.

Waiver Requests

```
No Waiver Request was submitted
```

Critical Observing Condition Constraints

```
None
```

Time-Critical Aspects

```
None
```

Special Execution Requirements

---(Empty)---

Special Calibration Information

HR 3749 is from the official ESO tool Calvin.

K=2.3, sp typ K1III, ang. distance 4deg, V=4.7

Fringe contrast is expected to be high, > 0.7 in K
on all baselines.

ToO Information

---(Empty)---

ToO Activators List

---(Empty)---

Is this a Pre-imaging run ?

```
true
```

Pre-imaging Requirements

---(Empty)---

Source(s) of Pre-imaging

---(Empty)---

Pre-imaging sources not listed above

---(Empty)---

Do all your OBs comply with the instrument-specific requirements listed on the instrument-specific Phase 2 web page ?

If this is a pre-imaging run, did you select PRE-IMAGING for the Observing Category for each Observing Template ?

```
N/A
```

Do all your finding charts comply with both the general and instrument-specific Phase 2 Web Pages ?

If you submitted OBs for standard stars, did you specify the magnitude and spectral type of all standard stars in the OBs ?

```
N/A
```

Have you included OBs for any calibrations that you need but which are not part of the Calibration Plan ?

```
N/A
```

If you are observing Moving Targets, have you attached suitable ephemeris files to your OBs?

```
N/A
```

If you have preferences which OBs should be executed first, did you make use of the User Priority field in the OBs ?

If this is a run that requires coordinated observations with other facilities, did you give proper instructions in the Time-Critical Aspects Section ?

```
N/A
```

Did you indicate for each science star OB the corresponding calibrator star OB (and vice versa) in the 'Instrument Comments' field ?

If you use calibrator stars which are not in the CalVin database, did you specify their characteristics in the README file and in the OBs ?

```
N/A
```

Last creation of page: Tue Oct 6 15:40:12 2009
If you have comments, please contact usd-help@eso.org