Exposure
ID
GRAVI.2023-08-23T23:43:29.046_1
Header ID
GRAVI.2023-08-23T23:43:29.046
Date updated
2023-08-23 23:55:51 UTC+0000
Release date
2023-08-23 23:43:29 UTC+0000
UTC Start
2023-08-23 23:43:29.046
UTC End
2023-08-23 23:49:29.046
MJD Start
60179.98853062
MJD End
60179.99269728667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.008204
Ambient temperature (°C)
15.18
Seeing (arcsec)
0.655
Observation
ID
56732
Category
calibrator
Program ID
111.24JN.002
Program Title
ELUCIDATING THE EVOLUTIONARY CONNECTIONS BETWEEN NITROGEN- AND CARBON-RICH WOLF-RAYET STARS
Program Type
Normal
PI / COI
SANA/ SHENAR/ BODENSTEINER/ BORDIER/ DSILVA/ FROST/ LANGER/ LE BOUQUIN/ MAHY/ MÉRAND/ PATRICK/ REGGIANI/ TRAMPER/ VILLASEÑOR
Target
ID
42035
Name
HD_147155
RA
245.67007
DEC
-52.35483
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 90.0660 90.1840 121.9000 123.1000
A0-J2 128.6300 128.4070 101.5000 102.8000
A0-K0 123.3450 122.7590 81.7520 82.9660
G1-J2 54.1410 53.8040 66.2000 67.3000
G1-K0 79.5780 79.1550 34.9410 35.7620
J2-K0 43.5750 43.6050 354.7810 355.5560
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 111.24JN.002
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60179.98853062
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD_147155
HIERARCH ESO INS SOBJ NAME HD_147155
RA 245.67007
DEC -52.35483
HIERARCH ESO INS SPEC RES MEDIUM
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
EXPTIME 376.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 90.066
HIERARCH ESO ISS PBL12 END 90.184
HIERARCH ESO ISS PBLA12 START 121.9
HIERARCH ESO ISS PBLA12 END 123.1
HIERARCH ESO ISS PBL13 START 128.63
HIERARCH ESO ISS PBL13 END 128.407
HIERARCH ESO ISS PBLA13 START 101.5
HIERARCH ESO ISS PBLA13 END 102.8
HIERARCH ESO ISS PBL14 START 123.345
HIERARCH ESO ISS PBL14 END 122.759
HIERARCH ESO ISS PBLA14 START 81.752
HIERARCH ESO ISS PBLA14 END 82.966
HIERARCH ESO ISS PBL23 START 54.141
HIERARCH ESO ISS PBL23 END 53.804
HIERARCH ESO ISS PBLA23 START 66.2
HIERARCH ESO ISS PBLA23 END 67.3
HIERARCH ESO ISS PBL24 START 79.578
HIERARCH ESO ISS PBL24 END 79.155
HIERARCH ESO ISS PBLA24 START 34.941
HIERARCH ESO ISS PBLA24 END 35.762
HIERARCH ESO ISS PBL34 START 43.575
HIERARCH ESO ISS PBL34 END 43.605
HIERARCH ESO ISS PBLA34 START 354.781
HIERARCH ESO ISS PBLA34 END 355.556
HIERARCH ESO ISS AMBI TAU0 START 0.008114
HIERARCH ESO ISS AMBI TAU0 END 0.008294
HIERARCH ESO ISS AMBI TEMP 15.18
HIERARCH ESO ISS AMBI FWHM START 0.64
HIERARCH ESO ISS AMBI FWHM END 0.67