Exposure
ID
GRAVI.2023-04-30T23:35:17.080_1
Header ID
GRAVI.2023-04-30T23:35:17.080
Date updated
2023-04-30 23:50:54 UTC+0000
Release date
2023-04-30 23:35:17 UTC+0000
UTC Start
2023-04-30 23:35:17.080
UTC End
2023-04-30 23:40:37.080
MJD Start
60064.98283657
MJD End
60064.9865402737
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0097795
Ambient temperature (°C)
16.45
Seeing (arcsec)
0.43
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 79.4750 80.0240 88.7000 89.9000
A0-J2 124.2580 124.6730 67.6000 68.9000
A0-K0 127.8670 127.9150 50.2500 51.4830
G1-J2 57.7060 57.6420 37.9000 39.0000
G1-K0 82.1630 82.0480 13.2710 14.1560
J2-K0 38.2080 38.3730 334.2930 334.9880
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 60064.98283657
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 79.475
HIERARCH ESO ISS PBL12 END 80.024
HIERARCH ESO ISS PBLA12 START 88.7
HIERARCH ESO ISS PBLA12 END 89.9
HIERARCH ESO ISS PBL13 START 124.258
HIERARCH ESO ISS PBL13 END 124.673
HIERARCH ESO ISS PBLA13 START 67.6
HIERARCH ESO ISS PBLA13 END 68.9
HIERARCH ESO ISS PBL14 START 127.867
HIERARCH ESO ISS PBL14 END 127.915
HIERARCH ESO ISS PBLA14 START 50.25
HIERARCH ESO ISS PBLA14 END 51.483
HIERARCH ESO ISS PBL23 START 57.706
HIERARCH ESO ISS PBL23 END 57.642
HIERARCH ESO ISS PBLA23 START 37.9
HIERARCH ESO ISS PBLA23 END 39.0
HIERARCH ESO ISS PBL24 START 82.163
HIERARCH ESO ISS PBL24 END 82.048
HIERARCH ESO ISS PBLA24 START 13.271
HIERARCH ESO ISS PBLA24 END 14.156
HIERARCH ESO ISS PBL34 START 38.208
HIERARCH ESO ISS PBL34 END 38.373
HIERARCH ESO ISS PBLA34 START 334.293
HIERARCH ESO ISS PBLA34 END 334.988
HIERARCH ESO ISS AMBI TAU0 START 0.009332
HIERARCH ESO ISS AMBI TAU0 END 0.010227
HIERARCH ESO ISS AMBI TEMP 16.45
HIERARCH ESO ISS AMBI FWHM START 0.43
HIERARCH ESO ISS AMBI FWHM END 0.43