Exposure
ID
GRAVI.2023-08-23T23:56:56.079_1
Header ID
GRAVI.2023-08-23T23:56:56.079
Date updated
2023-08-24 00:15:20 UTC+0000
Release date
2023-08-23 23:56:56 UTC+0000
UTC Start
2023-08-23 23:56:56.079
UTC End
2023-08-24 00:02:56.079
MJD Start
60179.99787129
MJD End
60180.00203795666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.008565
Ambient temperature (°C)
15.27
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 90.2930 90.3710 124.4000 125.6000
A0-J2 128.1150 127.8230 104.2000 105.5000
A0-K0 122.0550 121.3930 84.3460 85.5700
G1-J2 53.4040 53.0330 68.5000 69.6000
G1-K0 78.6580 78.2010 36.6870 37.4960
J2-K0 43.6340 43.6540 356.4370 357.2140
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 60179.99787129
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 90.293
HIERARCH ESO ISS PBL12 END 90.371
HIERARCH ESO ISS PBLA12 START 124.4
HIERARCH ESO ISS PBLA12 END 125.6
HIERARCH ESO ISS PBL13 START 128.115
HIERARCH ESO ISS PBL13 END 127.823
HIERARCH ESO ISS PBLA13 START 104.2
HIERARCH ESO ISS PBLA13 END 105.5
HIERARCH ESO ISS PBL14 START 122.055
HIERARCH ESO ISS PBL14 END 121.393
HIERARCH ESO ISS PBLA14 START 84.346
HIERARCH ESO ISS PBLA14 END 85.57
HIERARCH ESO ISS PBL23 START 53.404
HIERARCH ESO ISS PBL23 END 53.033
HIERARCH ESO ISS PBLA23 START 68.5
HIERARCH ESO ISS PBLA23 END 69.6
HIERARCH ESO ISS PBL24 START 78.658
HIERARCH ESO ISS PBL24 END 78.201
HIERARCH ESO ISS PBLA24 START 36.687
HIERARCH ESO ISS PBLA24 END 37.496
HIERARCH ESO ISS PBL34 START 43.634
HIERARCH ESO ISS PBL34 END 43.654
HIERARCH ESO ISS PBLA34 START 356.437
HIERARCH ESO ISS PBLA34 END 357.214
HIERARCH ESO ISS AMBI TAU0 START 0.008361
HIERARCH ESO ISS AMBI TAU0 END 0.008769
HIERARCH ESO ISS AMBI TEMP 15.27
HIERARCH ESO ISS AMBI FWHM START 0.63
HIERARCH ESO ISS AMBI FWHM END 0.68