Exposure
ID
GRAVI.2025-05-22T09:39:04.769_1
Header ID
GRAVI.2025-05-22T09:39:04.769
Date updated
2025-05-22 09:51:13 UTC+0000
Release date
2026-05-22 09:51:12 UTC+0000
UTC Start
2025-05-22 09:39:04.769
UTC End
2025-05-22 09:41:28.769
MJD Start
60817.40213853
MJD End
60817.40380519666
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.005481
Ambient temperature (°C)
13.93
Seeing (arcsec)
0.59
Observation
ID
67532
Category
science
Program ID
115.282E.001
Program Title
CIRCUMSTELLAR ENVELOPES OF NEARBY CEPHEIDS WITH GRAVITY TO REFINE THE PERIOD-LUMINOSITY RELATION IN THE JWST ERA
Program Type
Normal
PI / COI
HOCDÉ / NARDETTO / GALLENNE / KERVELLA / PIETRZYNSKI / GIEREN / MÉRAND / BRAS / BAILLEUL / LEFTLEY / AFANASIEV
Target
ID
50226
Name
eta_Aql
RA
298.118251
DEC
1.00561
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 65.4060 65.1560 271.2000 271.2000
K0-D0 95.1870 95.0360 252.5000 252.5000
K0-J3 49.0440 48.9100 337.3540 337.7200
G2-D0 39.2690 39.3290 220.3000 220.4000
G2-J3 63.9660 64.0380 46.6460 46.6940
D0-J3 103.0860 103.2190 44.2320 44.2940
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.282E.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60817.40213853
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME eta Aql
HIERARCH ESO INS SOBJ NAME eta_Aql
RA 298.118251
DEC 1.00561
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 K0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
EXPTIME 170.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 48
HIERARCH ESO ISS PBL12 START 65.406
HIERARCH ESO ISS PBL12 END 65.156
HIERARCH ESO ISS PBLA12 START 271.2
HIERARCH ESO ISS PBLA12 END 271.2
HIERARCH ESO ISS PBL13 START 95.187
HIERARCH ESO ISS PBL13 END 95.036
HIERARCH ESO ISS PBLA13 START 252.5
HIERARCH ESO ISS PBLA13 END 252.5
HIERARCH ESO ISS PBL14 START 49.044
HIERARCH ESO ISS PBL14 END 48.91
HIERARCH ESO ISS PBLA14 START 337.354
HIERARCH ESO ISS PBLA14 END 337.72
HIERARCH ESO ISS PBL23 START 39.269
HIERARCH ESO ISS PBL23 END 39.329
HIERARCH ESO ISS PBLA23 START 220.3
HIERARCH ESO ISS PBLA23 END 220.4
HIERARCH ESO ISS PBL24 START 63.966
HIERARCH ESO ISS PBL24 END 64.038
HIERARCH ESO ISS PBLA24 START 46.646
HIERARCH ESO ISS PBLA24 END 46.694
HIERARCH ESO ISS PBL34 START 103.086
HIERARCH ESO ISS PBL34 END 103.219
HIERARCH ESO ISS PBLA34 START 44.232
HIERARCH ESO ISS PBLA34 END 44.294
HIERARCH ESO ISS AMBI TAU0 START 0.006534
HIERARCH ESO ISS AMBI TAU0 END 0.004428
HIERARCH ESO ISS AMBI TEMP 13.93
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.73