Exposure
ID
GRAVI.2023-04-30T23:23:14.049_1
Header ID
GRAVI.2023-04-30T23:23:14.049
Date updated
2023-04-30 23:36:30 UTC+0000
Release date
2023-04-30 23:23:14 UTC+0000
UTC Start
2023-04-30 23:23:14.049
UTC End
2023-04-30 23:28:34.049
MJD Start
60064.97446816
MJD End
60064.9781718637
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0119325
Ambient temperature (°C)
16.35
Seeing (arcsec)
0.425
Observation
ID
55203
Category
calibrator
Program ID
111.24JN.001
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
40914
Name
HD_98677
RA
170.13858
DEC
-58.58961
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 78.2610 78.8370 86.1000 87.3000
A0-J2 123.3300 123.7720 64.8000 66.1000
A0-K0 127.7280 127.8000 47.6200 48.8540
G1-J2 57.8260 57.7720 35.5000 36.6000
G1-K0 82.3830 82.2850 11.3970 12.2740
J2-K0 37.8380 38.0140 332.8380 333.5160
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 111.24JN.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60064.97446816
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD_98677
HIERARCH ESO INS SOBJ NAME HD_98677
RA 170.13858
DEC -58.58961
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 339.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 32
HIERARCH ESO ISS PBL12 START 78.261
HIERARCH ESO ISS PBL12 END 78.837
HIERARCH ESO ISS PBLA12 START 86.1
HIERARCH ESO ISS PBLA12 END 87.3
HIERARCH ESO ISS PBL13 START 123.33
HIERARCH ESO ISS PBL13 END 123.772
HIERARCH ESO ISS PBLA13 START 64.8
HIERARCH ESO ISS PBLA13 END 66.1
HIERARCH ESO ISS PBL14 START 127.728
HIERARCH ESO ISS PBL14 END 127.8
HIERARCH ESO ISS PBLA14 START 47.62
HIERARCH ESO ISS PBLA14 END 48.854
HIERARCH ESO ISS PBL23 START 57.826
HIERARCH ESO ISS PBL23 END 57.772
HIERARCH ESO ISS PBLA23 START 35.5
HIERARCH ESO ISS PBLA23 END 36.6
HIERARCH ESO ISS PBL24 START 82.383
HIERARCH ESO ISS PBL24 END 82.285
HIERARCH ESO ISS PBLA24 START 11.397
HIERARCH ESO ISS PBLA24 END 12.274
HIERARCH ESO ISS PBL34 START 37.838
HIERARCH ESO ISS PBL34 END 38.014
HIERARCH ESO ISS PBLA34 START 332.838
HIERARCH ESO ISS PBLA34 END 333.516
HIERARCH ESO ISS AMBI TAU0 START 0.012005
HIERARCH ESO ISS AMBI TAU0 END 0.01186
HIERARCH ESO ISS AMBI TEMP 16.35
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.4