Exposure
    
    - ID
 - MATIS.2021-10-16T03:40:57.548_1
 - Header ID
 - MATIS.2021-10-16T03:40:57.548
 - Date updated
 - 2021-10-16 03:50:36 UTC+0000
 - Release date
 - 2021-10-16 03:40:57 UTC+0000
 - UTC Start
 - 2021-10-16 03:40:57.548
 - UTC End
 - 2021-10-16 03:41:57.524
 - MJD Start
 - 59503.15344384
 - MJD End
 - 59503.15413800666
 - Exposure time (s)
 - 60.0
 - Validation level
 - 1
 - Tau 0: Coherence time (s)
 - 0.0026995
 - Ambient temperature (°C)
 - 10.0
 - Seeing (arcsec)
 - 0.535
 
        Observation
    
    - ID
 - 48548
 - Category
 - calibrator
 - Program ID
 - 108.2229.001
 - Program Title
 - MATISSE AGN PILOT SURVEY -- UNDERSTANDING THE DIFFERENCES BETWEEN SY1 AND SY2
 - Program Type
 - GTO
 - PI / COI
 - JAFFE/ ISBELL/ PETROV/ BURTSCHER/ WEIGELT/ POTT/ GÁMEZ ROSAS/ MEISENHEIMER/ LEFTLEY
 
        Target
    
    - ID
 - 36384
 - Name
 - eta Eri
 - RA
 - 44.107983
 - DEC
 - -8.89899
 
        Instrument
    
    
        Projected baselines
    
    | Baseline | Length start | Length end | Angle start | Angle end | 
|---|---|---|---|---|
| U1-U2 | 51.1770 | 51.1940 | 9.4000 | 9.6000 | 
| U1-U3 | 90.4560 | 90.5140 | 15.8000 | 16.0000 | 
| U1-U4 | 105.4100 | 105.6620 | 47.6490 | 47.8130 | 
| U2-U3 | 40.0000 | 40.0440 | 23.9000 | 24.1000 | 
| U2-U4 | 72.4980 | 72.7220 | 73.5590 | 73.6500 | 
| U3-U4 | 55.6560 | 55.7770 | 106.7510 | 106.7530 | 
        Header: used keywords
    
    | Key | Value | 
|---|---|
| HIERARCH ESO OBS PROG ID | 108.2229.001 | 
| HIERARCH ESO DPR CATG | CALIB | 
| HIERARCH ESO DPR TYPE | STD | 
| MJD-OBS | 59503.15344384 | 
| HIERARCH ESO DPR TECH | INTERFEROMETRY | 
| HIERARCH ESO OBS TARG NAME | eta Eri | 
| RA | 44.107983 | 
| DEC | -8.89899 | 
| HIERARCH ESO DET NAME | MATISSE-N | 
| HIERARCH ESO INS DIN NAME | HIGH | 
| HIERARCH ESO INS DIN ID | HIGH | 
| HIERARCH ESO INS MODE | HYBRID | 
| HIERARCH ESO ISS CONF NTEL | 4 | 
| HIERARCH ESO ISS CONF STATION1 | U1 | 
| HIERARCH ESO ISS CONF STATION2 | U2 | 
| HIERARCH ESO ISS CONF STATION3 | U3 | 
| HIERARCH ESO ISS CONF STATION4 | U4 | 
| EXPTIME | 0.0750053 | 
| HIERARCH ESO DET SEQ1 PERIOD | 0.084 | 
| HIERARCH ESO DET NDIT | 714 | 
| HIERARCH ESO ISS PBL12 START | 51.177 | 
| HIERARCH ESO ISS PBL12 END | 51.194 | 
| HIERARCH ESO ISS PBLA12 START | 9.4 | 
| HIERARCH ESO ISS PBLA12 END | 9.6 | 
| HIERARCH ESO ISS PBL13 START | 90.456 | 
| HIERARCH ESO ISS PBL13 END | 90.514 | 
| HIERARCH ESO ISS PBLA13 START | 15.8 | 
| HIERARCH ESO ISS PBLA13 END | 16.0 | 
| HIERARCH ESO ISS PBL14 START | 105.41 | 
| HIERARCH ESO ISS PBL14 END | 105.662 | 
| HIERARCH ESO ISS PBLA14 START | 47.649 | 
| HIERARCH ESO ISS PBLA14 END | 47.813 | 
| HIERARCH ESO ISS PBL23 START | 40.0 | 
| HIERARCH ESO ISS PBL23 END | 40.044 | 
| HIERARCH ESO ISS PBLA23 START | 23.9 | 
| HIERARCH ESO ISS PBLA23 END | 24.1 | 
| HIERARCH ESO ISS PBL24 START | 72.498 | 
| HIERARCH ESO ISS PBL24 END | 72.722 | 
| HIERARCH ESO ISS PBLA24 START | 73.559 | 
| HIERARCH ESO ISS PBLA24 END | 73.65 | 
| HIERARCH ESO ISS PBL34 START | 55.656 | 
| HIERARCH ESO ISS PBL34 END | 55.777 | 
| HIERARCH ESO ISS PBLA34 START | 106.751 | 
| HIERARCH ESO ISS PBLA34 END | 106.753 | 
| HIERARCH ESO ISS AMBI TAU0 START | 0.002575 | 
| HIERARCH ESO ISS AMBI TAU0 END | 0.002824 | 
| HIERARCH ESO ISS AMBI TEMP | 10.0 | 
| HIERARCH ESO ISS AMBI FWHM START | 0.54 | 
| HIERARCH ESO ISS AMBI FWHM END | 0.53 |